Publication #1200-01 Firmware Version: V3.923 04/06/16 

SyringePump.com 

Model: NE-1000 

Multi-PhaserTM

NE-1000 Series of Programmable Syringe Pumps 

Firmware Version: V3.923 

0 10 20 30 40 50 60 70 80 90

0

10

20

30

40

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Time

Infu

sio

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ate

 “WHAT’S YOUR APPLICATION?”TM 

 

WARNING 

NOT FOR CLINICAL 

USE ON HUMANS
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 i 04/06/16 

Quick Start Instructions 

Assumes that the pump was not previous programmed with a multiple Phase Pumping Program. 

• Plug in the pump. 

• Press the power switch to turn on power. 

• Press any key to stop the display from blinking. 

Setup Pumping Parameters 

To Change Numbers: 

• Use the up-arrow keys to increment individual digits. 

• To set/clear the decimal point: Simultaneously press the 2 up-arrow keys under the 2 digits next to the decimal 

point position. Alternatively, press and hold the left-most up-arrow key for at least 1 second. When the digit 

increments from 9 to 0, the decimal point will begin to shift. Release the key when the decimal point is correct. 

• Press any non-arrow key, or wait 2 seconds, to enter the new setting. The display will blink when a new value is 

entered and stored in memory. 

Set the Syringe Inside Diameter: 

• Momentarily press the ‘Diameter’ key. Set the inside diameter of the syringe in millimeters (mm). 

Set the Pumping Rate. 

• Momentarily press the ‘Rate’ key. 

• To change the pumping rate units: 

− Momentarily press the ‘Rate’ key again. The display will show: 

− Press any up-arrow key to select the next available rate units while the units LEDs are blinking. 

− Press any non-arrow key, or wait 2 seconds, to set the rate units. 

• Set the pumping rate. If the pumping rate is out of range, the display will show: 

Set the Volume to be Dispensed or Continuous Pumping 

• Momentarily press the ‘Volume’ key. 

• When the display shows , the pump is set for continuous pumping. Pressing any up arrow key will change 

the display to 0. 

• For continuous pumping: Set the volume to 0. 

• For a Volume to be Dispensed: Set the volume. The default units are set according to the syringe diameter. 

Set the Pumping Direction 

• When the ‘Withdraw’ LED is lit, the pump is set for withdrawing. When not lit, the pump is set for infusing. Use the 

‘ ’ key to change the pumping direction. 

Load the Syringe 

• Press in the white drive-nut button to move the pusher block. 

• Insert the syringe plunger in the pusher block slot. 

• Insert the syringe barrel flange in the flange brackets with the syringe barrel holder on the syringe. Tighten the flange 

brackets onto the syringe flange. Tighten the pusher block screw. 

Prime / Purge: Press and hold the ‘Start/Stop’ key for one second. Release to stop.

Start the Pump: Press and release the ‘Start/Stop’ key to start or stop the pump.

When Pumping 

• The pumping rate can be changed. 

• With continuous pumping, the pumping direction can be changed. 

PUMP RESET: Press and hold the right-most up-arrow key while turning on power to the pump. 
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 ii 04/06/16 

Table of Contents 

1. GENERAL INFORMATION .............................................................................................. 1

1.1 WARNINGS ! AND CAUTIONS ! .............................................................................. 1

1.2 DISCLAIMER .................................................................................................................... 1

1.3 WARRANTY ..................................................................................................................... 2

1.4 PACKING LIST ................................................................................................................. 2

2. OVERVIEW .......................................................................................................................... 2

2.1 GLOSSARY OF TERMINOLOGY AND CONCEPTS ............................................................ 3

3. SETUP .................................................................................................................................... 5

4. LOADING SYRINGES ........................................................................................................ 5

5. GUIDE ROD COLLAR CLAMP (MODEL NE-1000 ONLY) ......................................... 5

6. USER INTERFACE .............................................................................................................. 6

6.1 ENTERING VALUES ......................................................................................................... 6

6.2 LCD DISPLAY ................................................................................................................. 6

6.3 LEDS ............................................................................................................................... 6

 .................................................................................................................................................... 7

6.4 ARROW AND DECIMAL POINT KEYS ............................................................................. 7

6.4.1 DECIMAL POINT ........................................................................................................ 7

6.5 ‘DIAMETER’ AND ‘SETUP’ KEY ...................................................................................... 7

6.6 ‘RATE’ AND ‘PROGRAM PHASE #’ KEY ......................................................................... 8

6.6.1 PUMPING RATE UNITS .............................................................................................. 8

6.6.2 PROGRAM ENTRY MODE .......................................................................................... 8

6.7 ‘VOLUME’ AND ‘PROGRAM FUNCTION’ KEY ............................................................... 8

6.7.1 DISABLING “VOLUME TO BE DISPENSED” ................................................................ 8

6.7.2 CLEARING “VOLUME DISPENSED” ........................................................................... 9

6.7.3 PROGRAM ENTRY MODE .......................................................................................... 9

6.8 PUMPING DIRECTION KEY ............................................................................................. 9

6.8.1 STICKY DIRECTION ................................................................................................... 9

6.9 ‘START’/’STOP’ KEY ...................................................................................................... 9

6.10 ‘PROGRAM PHASE #’ (NUMBER) KEY ...................................................................... 10

6.11 ‘PROGRAM FUNCTION’ KEY .................................................................................... 10

6.11.1 PROGRAM PHASE FUNCTION PARAMETER ............................................................. 10

6.12 ‘SETUP’ KEY .............................................................................................................. 10

6.13 SPECIAL POWER-UP FUNCTIONS ............................................................................. 10

6.13.1 FIRMWARE VERSION DISPLAY ................................................................................ 10

6.13.2 RESET PUMPING PROGRAM .................................................................................... 11

6.13.3 DEFAULT PROGRAM PRE-LOAD ............................................................................. 11

6.13.4 PROGRAM ENTRY MODE LOCKOUT ........................................................................ 11

6.14 ERROR AND ALARM MESSAGES ............................................................................... 11

6.15 STATUS MESSAGES ................................................................................................... 12

7. OPERATION....................................................................................................................... 12

7.1 SYRINGE INSIDE DIAMETER ......................................................................................... 12

7.1.1 DEFAULT VOLUME UNITS ....................................................................................... 12

7.1.2 CHANGING VOLUME UNITS .................................................................................... 13

7.2 START/STOP TRIGGERS ................................................................................................ 13

7.3 OPERATING THE PUMP ................................................................................................. 13

7.4 PURGING ........................................................................................................................ 13
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 iii 04/06/16 

7.5 CHANGING THE PUMPING RATE AND DIRECTION WHILE PUMPING ........................ 13

7.6 VOLUME DISPENSED ..................................................................................................... 13

7.7 RESUMING WHEN PAUSED ........................................................................................... 14

7.8 PUMP STALLED ............................................................................................................. 14

8. SETUP CONFIGURATION .............................................................................................. 14

8.1 POWER FAILURE MODE ............................................................................................... 15

8.2 LOW NOISE MODE ........................................................................................................ 15

8.3 AUDIBLE ALARM ENABLE ............................................................................................ 15

8.4 TTL I/O OPERATIONAL TRIGGER DEFAULT CONFIGURATION ................................ 16

8.5 TTL I/O DIRECTIONAL CONTROL INPUT CONFIGURATION ..................................... 16

8.6 PUMP MOTOR OPERATING TTL OUTPUT CONFIGURATION ..................................... 17

8.7 KEYPAD LOCKOUT ....................................................................................................... 17

8.8 KEYPAD AND NOTIFICATION BEEP ENABLE ............................................................... 17

8.9 RS-232 PUMP NETWORK CONFIGURATION ................................................................ 17

9. PUMPING PROGRAM ...................................................................................................... 18

9.1 HOW TO ENTER PUMPING PROGRAMS ....................................................................... 18

9.1.1 PUMPING PROGRAM PHASE NUMBER ..................................................................... 19

9.2 PUMPING PROGRAM EDIT FUNCTIONS ....................................................................... 19

9.3 PROGRAM FUNCTION DESCRIPTIONS ......................................................................... 20

9.3.1 ‘RATE’: RATE FUNCTION ....................................................................................... 20

9.3.2 ‘FILL’: FILL FUNCTION .......................................................................................... 20

9.3.3 ‘INCR’: INCREMENT RATE FUNCTION.................................................................... 20

9.3.4 ‘DECR’: DECREMENT RATE FUNCTION ................................................................. 21

9.3.5 ‘STOP’: STOP PUMPING OPERATION AND END THE PROGRAM .............................. 21

9.3.6 ‘JP:NN’: JUMP TO PHASE ........................................................................................ 21

9.3.7 'PR:IN': SUB-PROGRAM SELECTION INPUT ............................................................. 21

9.3.8 'PR:NN': SUB-PROGRAM START LABEL ................................................................... 22

9.3.9 ‘LP:ST’: DEFINE STARTING PHASE OF LOOP ......................................................... 22

9.3.10 ‘LP:EN’: DEFINE CONTINUOUS LOOP END ........................................................... 22

9.3.11 ‘LP:NN’: DEFINE LOOP END AND LOOP REPETITIONS ........................................... 22

9.3.12 'PS:NN': PAUSE PUMPING ....................................................................................... 22

9.3.13 'IF:NN': JUMP TO PHASE IF EXTERNAL TRIGGER ................................................... 23

9.3.14 'ET:NN': SETUP EVENT TRIGGER JUMP PHASE ....................................................... 23

9.3.15 'ES:NN': SETUP EVENT SQUARE WAVE TRIGGER JUMP PHASE .............................. 23

9.3.16 'ET:RS': EVENT RESET ............................................................................................ 23

9.3.17 ‘CLR.D’: CLEAR TOTAL VOLUME DISPENSED ........................................................ 23

9.3.18 ‘TR:AA’: OVERRIDE OPERATIONAL TRIGGER CONFIGURATION ............................. 24

9.3.19 'OUT.N': SET TTL OUTPUT PIN .............................................................................. 24

9.3.20 'BEEP': BEEP .......................................................................................................... 24

9.4 PUMPING PROGRAM EXAMPLES .................................................................................. 24

9.4.1 EXAMPLE 1: 2 STEP RATE ...................................................................................... 24

9.4.2 EXAMPLE 2: REPEATED DISPENSES WITH SUCK BACK .......................................... 25

9.4.3 EXAMPLE 3: RAMPING THE FLOW RATE ................................................................ 26

9.4.4 EXAMPLE 4: COMPLEX DISPENSES WITH EXTERNAL SYNCHRONIZATION ............ 27

9.4.5 EXAMPLE 5: CONTROL FROM A HIGH-LOW PRESSURE SENSOR ............................ 28

9.4.6 EXAMPLE 6: AUTOMATED DISPENSING WITH SYNCHRONIZATION ........................ 29

9.4.7 EXAMPLE 7: SUB-PROGRAMS ................................................................................ 30

9.4.8 EXAMPLE 8: DISPENSING WITH COMPLEX SYNCHRONIZATION ............................. 31

9.4.9 EXAMPLE 9: AUTOMATIC REFILL .......................................................................... 32

10. RS-232 COMMUNICATIONS ....................................................................................... 32

10.1 CONNECTION AND NETWORKING ............................................................................ 32
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 iv 04/06/16 

10.2 RS-232 PROTOCOL: .................................................................................................. 33

10.2.1 RS-232 GENERAL SYNTAX LEGEND ....................................................................... 33

10.2.2 RS-232 PROTOCOL: BASIC MODE .......................................................................... 34

10.2.3 RS-232 PROTOCOL: SAFE MODE ............................................................................ 34

10.2.4 RS-232 PROTOCOL: BASIC AND SAFE MODE COMMON SYNTAX .......................... 35

10.2.5 NETWORK COMMAND BURST ................................................................................. 36

10.3 COMMAND ERRORS AND ALARMS ........................................................................... 36

10.4 RS-232 COMMAND SET ............................................................................................. 36

10.4.1 PROGRAM FUNCTION COMMANDS ......................................................................... 37

10.4.2 PUMP OPERATIONAL COMMANDS .......................................................................... 39

10.4.3 CONFIGURATION AND SETUP COMMANDS ............................................................. 39

10.4.4 GENERAL CONTROL AND STATUS COMMANDS ...................................................... 41

10.4.5 SYSTEM COMMANDS .............................................................................................. 41

10.5 GETTING STARTED WITH RS-232 ........................................................................... 42

11. LOGIC INTERFACE: TTL INPUT AND OUTPUT ................................................. 43

11.1 TTL I/O OPERATIONAL CONTROLS ........................................................................ 44

11.2 TTL I/O CONTROL FROM THE PUMPING PROGRAM .............................................. 45

11.3 TTL I/O CONTROL FROM RS-232 ........................................................................... 45

12. APPENDIX ...................................................................................................................... 46

12.1 RS-232 COMMAND SUMMARY ................................................................................. 46

12.2 RS-232 PUMP NETWORK CONNECTOR WIRING ..................................................... 47

12.3 ACCESSORIES ............................................................................................................ 47

12.3.1 ANA-BOXTM .......................................................................................................... 47

12.3.2 SYRINGE HEATER ................................................................................................... 47

12.3.3 RS-232 NETWORK CABLES ..................................................................................... 47

12.3.4 AUTOMATION CABLE: SPECIAL COMMUNICATIONS MODES CONTROL CABLE .... 48

12.3.5 VALVE CONTROLLER .............................................................................................. 48

12.3.6 FOOT SWITCH.......................................................................................................... 48

12.3.7 LOCKOUT DISABLE KEY ......................................................................................... 48

12.3.8 FIRMWARE UPGRADE ............................................................................................. 48

12.4 TROUBLESHOOTING AND MAINTENANCE ............................................................... 48

12.5 SPECIFICATIONS ........................................................................................................ 49

12.6 CUSTOM APPLICATIONS ........................................................................................... 49

12.7 SYRINGE DIAMETERS AND RATE LIMITS ................................................................ 50
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 1 04/06/16 

1. General Information 

Thank you for purchasing the NE-1000 Multi-PhaserTM Programmable Syringe Pump. With the NE-1000 

syringe pump you will be able to perform simple infusions or implement a complex automated dispensing 

system. 

Please familiarize yourself with the NE-1000’s operation by reading this user's manual. For future 

reference, record the serial number, located on the rear of the pump, and the date of purchase. 

New Era Pump Systems Inc., located in Farmingdale, NY USA, can be contacted at: 

Phone: (631) 249-1392 FAX: (707) 248-2089 Email: INFO@SYRINGEPUMP.COM 

 WWW.SYRINGEPUMP.COM 

This Operating Manual, and the NE-1000’s hardware, electronics and firmware are copyrighted. 

Copyright 1999-2014, all rights reserved. 

1.1 Warnings ! and Cautions !

! Read the user’s manual 

! No user serviceable parts are inside. 

! Disconnect power from the pump when connecting or disconnecting cables. 

! Do not immerse the pump in liquid 

!

Install on a stable surface. 

! Keep hands and loose clothing away from the pump's moving parts. 

! The pump can automatically start when the Pumping Program is operating or when attached to an 

external control device. 

! Prevent liquids from entering openings in the rear of the pump. 

! Use only with the supplied power supply connected to a power source as specified on the power 

supply label. 

! Do not push objects of any kind into the chassis openings, except for appropriate cables and 

connectors. 

!

If the pump becomes damaged, do not use unless certified safe by a qualified technician. Damage 

includes, but is not excluded to, frayed cords and deterioration in performance. 

! Discharge static from control cables before connecting by touching the cable to ground. 

! Before touching the pump, discharge static by touching ground. 

1.2 Disclaimer 

New Era Pump Systems Inc. makes no representations or warranties, expressed, statutory or implied, 

regarding the fitness or merchantability of this product for any particular purpose. Further, New Era Pump 

Systems Inc. is not liable for any damages, including but not limited to, lost profits, lost savings, or other 

incidental or consequential damages arising from ownership or use of this product, or for any delay in the 

performance of its obligations under the warranty due to causes beyond its control. New Era Pump 

Systems Inc. also reserves the right to make any improvements or modifications to the product described 

in this manual at any time, without notice of these changes. 

New Era Pump Systems Inc. products are not designed, intended, or authorized for use in applications or 

as system components intended to support or sustain human life, as a clinical medical device for humans, 

or for any application in which the failure of the product could create a situation where personal injury or 

death may occur. 

All brand and product names used in this manual are the trademarks of their respective owners. 
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 2 04/06/16 

1.3 Warranty 

New Era Pump Systems Inc. warranties this product and accessories for a period of two years, parts and

labor, from the date of purchase. The repaired unit will be covered for the period of the remainder of the 

original warranty or 90 days, whichever is greater. Return shipping charges are not included. 

A return authorization number must be obtained from New Era Pump Systems Inc. before returning a unit 

for repair. Warranty covered repairs will not be performed without a return authorization number. At the 

option of New Era Pump Systems Inc., a defective unit will be either repaired or replaced. 

This warranty does not cover damage by any cause including, but not limited to, any malfunction, defect 

or failure caused by or resulting from unauthorized service or parts, improper maintenance, operation 

contrary to furnished instructions, shipping or transit accidents, modifications or repair by the user, harsh 

environments, misuse, neglect, abuse, accident, incorrect line voltage, fire, flood, other natural disasters, 

or normal wear and tear. Changes or modifications not approved by New Era Pump Systems Inc. could 

void the warranty. Wearable parts, such as drive nuts, are not covered by the warranty. 

The foregoing is in lieu of all other expressed warranties and New Era Pump Systems Inc. does not 

assume or authorize any party to assume for it any other obligation or liability. 

1.4 Packing List 

Included with the NE-1000 Multi-PhaserTM Programmable Syringe Pump are the following items: 

• One of the following external power supply adapters: 

Input: One of: 120V AC 60 Hz, 220V AC 50 Hz, 240V AC 50 HZ, 

or other custom specified power supply 

Output: 12V DC @ 800 mA (or compatible regulated power supply) 

• Hex wrench for adjustable guide rod collar (located in the tool holder on the back of 

the syringe holder). Model NE-1000 only. 

• This Operating Manual 

2. Overview 

The model NE-1000 is a general purpose single syringe pump capable of infusion and withdrawal. It is 

controlled from a microcontroller based system which drives a step motor, allowing a large range of 

pumping rates configured to the inside diameter of the loaded syringe. The syringe is driven from a drivescrew and drive-nut mechanism. 

Features: 

♦ Infusion and withdrawal pumping of syringes 

up to 60 mL. 140 mL partially filled. 

♦ Pumping rates from 0.73 μL/hr with a 1 mL 

syringe to 2120 mL/hr with a 60 mL syringe. 

♦ Stall detection: Automatically stops pump 

when pumping is impeded. 

♦ Infusion and withdrawal volumes separately 

accumulated. 

♦ Programmable dispense volumes. 

♦ Programmable Phases allowing complex 

pumping applications and interaction with 

external devices. 

♦ Program Sub-Programs, selectable by the user. 

♦ Non-volatile memory of all operating 

parameters and Pumping Program. 

♦ RS-232 bi-directional control from a computer 

♦ Built-in pump network driver. Pump network 

supports up to 100 pumps and other devices. 

♦ Two modes of RS-232 control, Basic and Safe. 

Safe mode provides communication error 

detection, loss of communication detection, and 

automatic transmitting of alarm conditions. 

♦ TTL logic I/O with firmware filtered control 

inputs to eliminate glitches and ringing on the 

control inputs. 

♦ Configurable and programmable TTL 

operational trigger for flexible logic control. 

♦ Power Failure Mode: Restarts the Pumping 

Program after a power interruption. 

♦ Audible Alarm. 

♦ Many more features!
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 3 04/06/16 

2.1 Glossary of Terminology and Concepts 

When a device has as many features as the NE-1000, understanding its operation could be a daunting task at 

first. By understanding the key concepts and terminology used in this manual, the operation of the NE-1000 

will become quite intuitive. Every effort has been made to design the NE-1000 with a consistent and intuitive 

user interface. 

To facilitate and enhance your understanding of the NE-1000’s operation, please take the time to familiarize 

yourself with the basic concepts below: 

1 

2 

3 

4 5 6 7 8 9 

10 

11 

12 

13 

14 16 15 

Parts of the Pump

1) Pusher Block 

2) End Plate 

3) Anti-Siphon Plate Adjustment Knob 

4) Power On/Off Switch 

5) Drive-Nut Button 

6) Anti-Siphon Plate 

7) Drive-Screw 

8) Syringe Retainer Thumbscrew (2, one on each side) 

9) Hex Wrench (in tool holder) 

10) Syringe Retainer Bracket 

11) Syringe Holder Block 

12) ‘V’ Slot (on Syringe Holder Block) 

13) Syringe Clamp 

14) Keypad / User Interface 

15) Guide Rod Collar Clamp 

16) Guide Rod (2 guide rods) 

Parts of a Syringe

 

 

 

Plunger 

Flange 

Plunger Barrel Flange Barrel
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 4 04/06/16 

Terminology

Momentary Press: A quick press, less then 1 second, then release of a key on the keypad. 

Display Blink: A momentary blanking of the LCD display. This indicates that the new data 

entered by the user is valid and has been stored. 

Program Entry 

Mode:

The mode where the Program Phase and Program function are selected and 

modified. In this mode the ‘Program Phase #’ and the ‘Program Function’ 

modes of the ‘Rate’ and ‘Volume’ keys are relevant.

Pumping Program: The sequence of automated operations entered into the pump. This could be as 

simple as a single function to pump at a single infusion rate continuously. 

Pumping Program 

Operating:

When the pump is started with the ‘Start’/’Stop’ key, or any other source, the 

pump begins performing the operations in the Pumping Program until the 

Pumping Program either stops automatically or the pump is stopped when the 

‘Start/Stop’ key is pressed, or from any other source. While performing the 

operations defined in the Pumping Program, the Pumping Program is referred to 

as operating. 

While Operating, the motor can be pumping or stopped, according to the 

Pumping Program. 

Pumping Program 

Stopped: 

The motor is stopped and the pump is not operating the Pumping Program. 

Pumping Program 

Paused: 

The Pumping Program has been stopped, but can be resumed at the point where 

it was stopped. 

Pumping Program 

Resumed:

Continuing a Pumping Program that was Paused before the completion of the 

Pumping Program. The Pumping Program continues at the point where the 

Pumping Program was stopped. 

Executed: The pump has performed a single operational Phase as defined in the Pumping 

Program. 

Program Phase: A single defined operation in the Pumping Program. 

Phase Number: A Program Phase’s numerical sequence location in the Pumping Program. 

Currently Selected 

Function:

Each Pumping Program Phase instructs the pump to perform a particular 

operation. Only one Program Phase is selected at any one time. This is the 

current Phase. Each Phase is set to one function. The set function of the current 

Phase is the currently selected function. 

Pumping Rate 

Function:

Each Pumping Program function instructs the pump to perform a particular 

operation. If the Phase’s operation instructs the NE-1000 to pump, then 

associated with that Phase is the Phases’ pumping information. When ‘Program 

Entry Mode’ is exited, the ‘Rate’, ‘Volume’, and pumping direction keys refer 

to the currently selected Program Phase’s function. The Program functions that 

are associated with pumping information are referred to as Pumping Rate 

functions. 

Function 

Parameter:

Certain functions, which do not instruct the NE-1000 to pump, require 

additional data. This additional data, displayed with the function, is the 

function’s parameter. 

Start Trigger: The Pumping Program may be started, or stopped, from multiple sources. 

These are the keypad’s ‘Start’/’Stop’ key, the TTL I/O ‘Operational Trigger’ 

input, or from a command received through the RS-232 connection. 
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 5 04/06/16 

3. Setup 

♦ Place the pump on a stable surface. 

♦ Plug the round connector end of the supplied power supply adapter into the power plug located on the 

lower right of the pump's rear. See section 11, Logic Interface: TTL Input and Output, for a diagram of 

the rear of the pump. Plug the other end of the power supply adapter into an appropriate electrical outlet. 

The pump will be powered when the bottom of the power switch, located on the upper right of the rear of 

the pump, labeled ‘1’, is pressed. The red indicator on the switch is visible when the power switch is in 

the ‘on’ position. After power is applied to the pump, the pump’s display will flash. 

♦ Next the Pumping Program can be entered. Before the Pumping Program can be operated, the pump 

needs the measurement of the inside diameter, in millimeters, of the syringe that will be loaded. The

syringe diameter can be entered using the keypad on the front panel of the pump. 

♦ Finally, the syringe can be loaded and the pump started. 

4. Loading Syringes 

The syringe is loaded by securing the barrel and the pusher flange as follows: 

1: Loosen the 2 thumbscrews on the syringe retainer bracket. 

2: Press in fully the white drive-nut button on the pusher block, releasing the block. Taking care not to 

drag the drive-nut on the drive-screw, slide the block away from the syringe holder, providing sufficient 

space for the loaded syringe. Then release the white button. 

3: Lift the syringe clamp above the syringe holder block. Turn it 1/4 turn and then lower it onto the 

syringe holder block. The syringe clamp should be out of the ‘V’ slot. 

4: Load the syringe with the barrel over the syringe holder and the syringe plunger towards the middle of 

the pump. Place the barrel on the syringe holder block, in the ‘V’ slot, with the barrel flange inserted 

between the syringe holder block and syringe retainer bracket. 

5: On the pusher block, turn the thumbscrew to make the slot large enough for the plunger flange. Press in 

fully the white drive-nut button on the pusher block, releasing the pusher block. Then slide the block 

towards the syringe plunger. Place the syringe plunger flange into the slot and against the anti-siphon 

plate. When the flange is positioned in the slot, release the white drive-nut button. 

6: Lift the syringe clamp to slightly above the height of the syringe barrel and turn the syringe clamp 1/4 turn 

back to its original position and then lower it onto the syringe barrel. 

7: Firmly push in the syringe retainer bracket against the syringe barrel flange and tighten the 2 thumbscrews 

on the syringe retainer bracket. On the pusher block, turn the thumbscrew to move the plate against the 

plunger flange. 

⇒ To unload the syringe, reverse the instructions for syringe loading. 

5. Guide Rod Collar Clamp (Model NE-1000 only) 

WARNING: Do not use the collar clamp as a normal method of stopping the pump. This will cause damage

to the drive nut. Pump Stall is a fault condition and not a normal method of stopping the pump. 

To protect a fragile syringe from damage caused by over infusion, use the collar clamp to limit the travel of the 

pusher block. Using the hex wrench located in the tool holder on the rear of the syringe holder, loosen, but do 

not remove, the hex screw on the guide rod collar clamp, enabling the collar clamp to slide on the guide rod. 

Position the collar clamp as required, and then tighten the hex screw on the collar clamp with the hex wrench. 

Replace the hex wrench in the tool holder. When the pusher block comes in contact with the collar clamp 

while infusing, a stall alarm will occur. The pump motor will be stopped and the Pumping Program will be 

paused. If alarms are enabled, the buzzer will sound. 
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 6 04/06/16 

6. User Interface 

mm

Volume 

Dispensed

mL

Withdraw

min

hr Pumping

Rate Volume Diameter Start

Pumping Program 

Phase # Function

Setup

μL

RS-232 

Indicator

Units 

Indicators Pumping Direction 

Indicator

Volume Dispensed 

Indicator

Stop

Motor 

Operating

Program Entry Keys Pumping Direction Key

Syringe ID

Decimal Point: Press 2 keys

Figure 1: Front Panel 

6.1 Entering Values 

When applicable, values can be changed by either displaying the current value, then using the arrow keys, or 

from a computer connected to the pump. The new value will be stored in the pump’s non-volatile memory, 

meaning that the new value will not be lost the next time that power is applied to the pump. The only

exception is when the pumping rate is changed from an attached computer while the Pumping Program is 

operating. In this case the new pumping rate will not be stored in non-volatile memory. 

A displayed value can be changed by pressing the arrow keys below each digit. If the value to be changed is 

not currently displayed, when applicable, momentarily press the key associated with the required value. The 

display will show the setting’s current value and its units, if any. 

While the current value is being changed, the units LEDs associated with the value, if any, will blink. Except 

where noted, the new value is stored, and/or the selected operation takes effect, when either 

1) A non-arrow key is pressed or 

2) After a 2 second delay since the last arrow key was pressed. 

If the new value is valid and different from the original value, the display will blink, indicating that the new 

value was stored. Otherwise, if the value was invalid, an error message will be displayed. Pressing any key 

clears the error message and restores the original value. 

In general, if a parameter has 2 values, ‘off’ and ‘on’, they are represented by the numbers ‘0’ and ‘1’, 

respectfully. 

6.2 LCD Display 

The display consists of a 4 digit reflective LCD (Liquid Crystal Diode) display. This is the general purpose 

user display device for displaying numerical data, functions and parameters. The colon (:) is used for 

displaying time or for separating function abbreviations from their parameter values. In the upper left corner is 

a triangle that indicates valid reception of RS-232 remote communications. 

6.3 LEDs 

To the right of the LCD are 8 red, round, LED (Light Emitting Diode) indicators. The first 2 columns display 

the units of the displayed values. Units are expressed using 1 or 2 LEDs. For instance, ‘mL / hr’ is expressed 

by lighting the ‘mL’ and the ‘hr’ LEDs. 

‘Dispensed’ indicates that the displayed volume is the total ‘Volume Dispensed’ or pumped. 

When ‘Pumping’ is lit (not blinking), the motor is operating, either infusing or withdrawing. If blinking, the 

motor is not operating, and the Pumping Program is paused. When the pump is restarted, the Pumping 

Program will resume at the point where the Pumping Program was interrupted. When not lit (not blinking) the 

pump is stopped, but the Pumping Program may be operating a pause Phase. Starting the pump, when the 

Pumping Program is stopped, will start the Pumping Program from the beginning (Phase 1). 

‘Withdraw’ indicates that the pumping direction is set for withdrawing. If not lit, then the pumping direction 

is set for infusing. When blinking, “Sticky Direction” is set. Also, the ‘Withdraw’ LED indicates that the 
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Pumping rate units are expressed using 2 LEDs:

 ‘mL/min’ = 

 ‘mL/hr’ = 

 ‘μL/min’ = 

 ‘μL/hr’ = 

“Volume Dispensed” refers to the volume withdrawn. If not lit, the “Volume Dispensed” refers to the volume 

infused. 

6.4 Arrow and Decimal Point Keys 

Each of the four digits in the display is associated with the up arrow key directly below it. When applicable, 

the arrow key is used to increment the value of that digit, or advance to the next selection in a list of functions 

or settings. 

Each press of an up arrow key will increase the digit by 1, up to 9, and then back to 0. The arrow keys may 

also be held down for continuous incrementing of numbers. Some parameters, such as the RS-232 baud rate, 

scroll through a selection of values when the arrow keys are pressed. Other parameters have a fixed range of 

values, such as some setup parameters that are either turned on or off. In these cases, the arrow key will only 

scroll up to the maximum value for that parameter, then back to the minimum value. 

When changing the pumping rate units, each press of any arrow key will change the units LEDs to the next 

units selection. 

When the display blinks, the new value is stored and takes effect. This will occur when a non-arrow key is 

pressed or after a 2 second delay since the last key press. 

6.4.1 Decimal Point 

There are 4 decimal point positions on the LCD display. Each decimal point position is to the right of a digit 

in the display. The last decimal point position, to the right of the right-most digit is not displayed, indicating 

whole numbers with no decimal point. 

To move the decimal point, simultaneously press the 2 up arrow keys under the 2 digits next to the decimal 

point position. Press the same 2 up arrow keys to clear the decimal point, to display a whole number.

Alternatively, to move the decimal point position, use the left-most arrow / decimal point key (/). Press 

and hold this key for at least 1 second and wait until the left-most digit scrolls past ‘9’ to ‘0’. While 

continuing to hold this key, the decimal point will shift 1 position to the right. After the right-most decimal 

point position, the decimal point will shift to the first decimal point position. Release the key when the 

decimal point is in the required position. 

6.5 ‘Diameter’ and ‘Setup’ Key 

The ‘Diameter’ key allows the syringe inside diameter to be viewed and set. While being displayed, the ‘mm’ 

LED is lit. Momentarily pressing this key will display the current diameter setting. With the Pumping 

Program stopped , pressing the up arrow keys will change the current diameter (see sec.6.4, 

LED Description

mm Millimeters 

mL Milliliters 

min Minutes 

μL Microliters 

hr Hours 

Dispensed Volume dispensed displayed 

Withdraw Pumping Direction: 

Lit: Withdraw 

Not lit: Infuse 

Blinking: “Sticky Direction” 

Pumping Lit: Motor is operating 

Not lit: The Pumping Program is stopped 

or executing a Pause Function 

Blinking: The Pumping Program is paused 
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Arrow and Decimal Point Key). The ‘mm’ LED will blink while the diameter is being changed. 

If the ‘Diameter’ key is pressed and held, ‘Setup’ mode will be entered. (See sec. 6.12, ‘Setup’ ). 

6.6 ‘Rate’ and ‘Program Phase #’ Key 

When the Pumping Program is stopped, except in “Program Entry Mode”, the ‘Rate’ key allows the pumping

rate to be viewed or changed. If the currently selected function allows selection of rate units, momentarily 

pressing this key will switch between the ‘Rate’ display and the select rate units mode. 

To change the pumping rate displayed, use the up arrow keys (see sec.6.4, 

Arrow and Decimal Point Key). 

While the Pumping Program is operating, pressing this key will display the current pumping rate, if applicable. 

While displayed, the current pumping rate can be changed by pressing the up arrow keys. The rate units will 

blink while the rate is being changed. The new pumping rate takes effect when the display blinks after a 2 

second delay or when a non-arrow key is pressed. The new pumping rate is stored in the current Program 

Phase. 

See section 12.7, “Syringe Diameters and Rate Limits”, for a list of minimum and maximum pumping rates. A 

pumping rate of 0.0 will stop the pump. When the pumping rate is changed, if it is out of range of the pumping 

rate limits, the display will show nn , where ‘nn’ indicates the currently selected Phase Number. 

Pressing any key clears the message and returns to the previous pumping rate. 

6.6.1 Pumping Rate Units 

The pumping rate units can only be changed when the Pumping Program is not operating. If the currently 

selected function allows selection of rate units (‘RATE’ function), a momentary press of the ‘Rate’ key will 

enter Rate Units Change mode. The 2 LEDs representing the units will blink and the display will show:

. 

Each press of any up arrow key selects the next rate units, as indicated by the blinking units LEDs. When the 

required rate units are blinking, press any non-arrow key or wait 2 seconds. The display will blink, indicating 

the rate units are stored. The rate units are stored in the currently selected Program Phase. The rate units can 

be independently set for each Phase with a ‘RATE’ function. 

6.6.2 Program Entry Mode 

While the Pumping Program is stopped, “Program Entry Mode” can be entered by pressing and holding the 

‘Rate’ key. Release the key when the display shows the current Program Phase number: nn , where 

‘nn’ indicates the current Program Phase number. 

With the current Program Phase number displayed, if the currently selected Program Phase is set to a pumping 

rate function, a momentary press of this key will exit “Program Entry Mode” and return to the rate display. 

6.7 ‘Volume’ and ‘Program Function’ Key 

When the Pumping Program is stopped, except in “Program Entry Mode”, momentary presses of this key will 

switch the display between the “Volume to be Dispensed” and the “Volume Dispensed” displays, as indicted 

by the ‘Dispensed’ LED. 

With the Pumping Program stopped, and the “Volume to be Dispensed” displayed, pressing the arrow keys 

will change the “Volume to be Dispensed” (see sec.6.4, 

Arrow and Decimal Point Key). The units of the volume are set according to the syringe diameter, but can be 

changed. The new “Volume to be Dispensed” is stored in the current Program Phase. If the “Volume to be 

Dispensed” is disabled (‘off’), pressing any up arrow key will change the display to 0.0. The “Volume to be 

Dispensed” can now be set using the up arrow keys. 

While pumping, pressing this key will switch between displaying the current “Volume Dispensed” and 

“Volume to be Dispensed”. 

6.7.1 Disabling “Volume to be Dispensed” 
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To disable the “Volume to be Dispensed”, i.e. continuous pumping, set the “Volume to be Dispensed” to 0.0. 

After being stored, the display will show , indicating the “Volume to be Dispensed” is off. In this 

mode, the pump will not stop at a set volume and will pump continuously until the pump is stopped, or an 

“event trigger”, programmed into the Pumping Program, occurs. 

6.7.2 Clearing “Volume Dispensed” 

With the Pumping Program stopped, display the “Volume Dispensed”. Pressing and holding any up arrow key 

for one second will reset the infusion and withdrawal dispensed volumes to 0. 

6.7.3 Program Entry Mode 

“Program Entry Mode” is entered by pressing and holding the ‘Volume’ key. Release the key when the 

display shows the currently selected Program Phase’s function. 

In “Program Entry Mode”, when the Program Function is not displayed, momentarily pressing this key will 

display the current Program Function. 

When the Program Function is displayed, if the function is a pumping rate function, “Program Entry Mode” 

can be exited by momentarily pressing the ‘Volume’ key. The display will show the “Volume to be 

Dispensed”. 

Otherwise, pressing the ‘Volume’ key will display the “Volume Dispensed”. Pressing the ‘Volume’ key again 

will return to displaying the Program Function. 

6.8 Pumping Direction Key 

The pumping direction key, ‘ ’, changes the direction of pumping. Pressing this key switches the 

pumping direction between ‘infuse’ and ‘withdraw’, as indicated by the ‘Withdraw’ LED. When the LED is 

lit, the pumping direction is ‘withdraw’, not-lit, pumping direction is ‘infuse’, blinking indicates “Sticky 

Direction” is set. The new pumping direction is stored in the current Program Phase. 

The “Volume Dispensed” is accumulated separately for infusion and withdrawal. When the pumping direction 

is changed, the current “Volume Dispensed” is also changed accordingly between the infusion and withdrawal 

“Volume Dispensed” accumulations. 

When the Pumping Program is operating and the “Volume to be Dispensed” is non-zero, the pumping 

direction cannot be changed. Otherwise, when pumping continuously (“Volume to be Dispensed” disabled), 

the pumping direction can be changed. 

6.8.1 Sticky Direction 

With the pump stopped, press and hold the direction key to set “Sticky Direction”. The LED will blink when 

set. 

“Sticky Direction” will continue the pumping direction of the previous Pumping Phase or, if the first Phase, set 

the pumping direction according to the logic level of the “Pumping Direction” TTL input pin (pin 3): 

Direction Control: Reciprocating Pumps (dr:rE) Dual Pumps (dr:dU) 

Low Level: Infuse Withdraw 

High Level: Withdraw Infuse 

6.9 ‘Start’/’Stop’ Key 

The ‘Start/Stop’ key starts or stops the Pumping Program’s operation. Pressing this key switches between the 

Pumping Program operating and the Pumping Program paused. When the ‘Start/Stop’ key is pressed before

the completion of a Program, the motor is stopped and the Pumping Program will be paused. The ‘Pumping’ 

LED will then blink, indicating that the Pumping Program is paused. 

Pressing this key again will resume the Program at the point it was paused. If any other key is pressed while 

the Pumping Program is paused, the Pumping Program will be stopped and reset. Pressing the ‘Start/Stop’ key 

will then start the Pumping Program from the beginning (Phase 1). 

Pressing and holding this key while starting the Pumping Program will start the purge mode. Purge will begin 

after the key is held for one second, and continue until the key is released. The pump will stop after the key is 

released. 

“Button Trigger Event Trap” Program Function redirects ‘Stop’ key to a Program Event. 
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6.10 ‘Program Phase #’ (Number) Key 

When in the “Program Entry Mode”, momentary presses of the ’Program Phase #’ and the ‘Program Function’ 

keys switch between the Program Phase number and the Program Function displays. The Program Phase 

number will be displayed as nn , where ‘nn’ is the current Program Phase number. 

When the Program Phase number is displayed and the current Phase’s function is a rate function, a momentary 

press of the ‘Program Phase #’ key exits ‘Program Entry Mode, and displays the pumping rate. 

To change the current Program Phase number, press the arrow keys below the Phase number’s digits. The

maximum Phase number is 41. To reset to Phase number 1, press and hold the ‘Program Phase #’ key until the 

Phase number is 1. 

When a new Program Phase number is selected, the current value of all settings will be that of the currently 

selected Program Phase. 

6.11 ‘Program Function’ Key 

When in the “Program Entry Mode”, momentary presses of the ’Program Phase #’ and the ‘Program Function’ 

keys switch between the Program Phase number and the Program Function displays. 

With the Program Phase function displayed, the Program Function can be selected. Pressing any arrow key, or 

an arrow key to the left of the colon (:) or decimal point (.) if displayed with the function, will select the next 

Program Function. The selected function is stored by either pressing any non-arrow key, or after a 2 second 

delay. If the selected function is different from the original function, the display will blink when the selected 

function is stored. 

6.11.1 Program Phase Function Parameter 

If the selected function has a parameter associated with the function, the value of the parameter will be 

displayed to the right of the function name, separated by either a period (.) or a colon (:). 

To change the parameter’s value, press the arrow keys below the parameter’s digits. The parameter’s new 

value is stored by either pressing any non-arrow key or after a 2 second delay. If the parameter has changed 

from its original value, the display will blink when the parameter’s new value is stored. 

6.12 ‘Setup’ Key 

The secondary function of the ‘Diameter’ key is ‘Setup’. While the Pumping Program is not operating, press 

and hold the ‘Diameter’ key until the first setup configuration parameter, “Power Failure Mode”, is displayed: 

 n . 

The display will consecutively display, for about 2 seconds, each Setup Configuration parameter and its 

current setting. Pressing any non-arrow key will immediately advance to the next Setup Configuration 

parameter. 

To change a Setup Configuration parameter, press an arrow key under the parameter’s value. To store the new 

value, press any non-arrow key or wait 2 seconds. If the parameter value differs from its previous value, the 

display will blink. The new parameter value will be stored and the next parameter will be displayed. See 

section 8, “Setup Configuration” for a complete description of the Setup Configurations. 

After the last configuration parameter is displayed, the display reverts back to displaying the syringe diameter. 

Any new parameter value will take effect immediately upon being stored. 

6.13 Special Power-Up Functions 

The following special functions are accessed by pressing the relevant key, while turning on power to the 

pump. 

6.13.1 Firmware Version Display 

To display the pump’s firmware version, press the left-most up-arrow key (/) while turning on power to 

the pump. The display will show: n.nn , where ‘n.nn’ is the firmware version number. Pressing any key 

will clear the display. 
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6.13.2 Reset Pumping Program 

To clear out the current Program Function setups, press the right-most up-arrow key () while turning on 

power to the pump. The display will show . Pressing any key will clear the display. 

With a pump with as many complex features as the NE-1000, it is easy for a novice user experimenting with 

the pump's setup to get the pump into a 'weird' state. Performing this reset function will bring the pump out of 

a 'weird' state. 

6.13.3 Default Program Pre-Load 

Pressing the 'Volume'/'Program Function' key while turning on power to the pump will display the Default 

Program Menu and the display will show the first default program: , Reciprocating Pumping 

program. Us the up arrow keys to select the next program. When the Reciprocating Pumping program is

selected, the following program will be loaded and stored in the Pumping Program memory, plus the RS-232 

communications mode will be set to Reciprocating Mode. The default program will over write any other 

program stored in memory and it can then be modified as needed. 

The Reciprocating Pumping Program, plus cable Part# CBL-DUAL-3, sets the pump for use with a second 

pump to create a continuous infusion system. 

Phase Function Rate Volume Direction 

1 RATE 500 mL/hr 10.0 mL Withdraw 

Phase Function Rate Volume Direction 

2 FILL 0.0 mL/hr ----------- ------------ 

Phase Function 

3 JP:01 

6.13.4 Program Entry Mode Lockout 

Pressing the ‘Diameter’ key while turning on power to the pump will enter special parameter setup. The 

following will be displayed: n , currently, the only parameter. The “Program Entry Mode Lockout”, 

when enabled, prevents inexperienced users from entering “Program Entry Mode” from the keypad. Mode 

Disabled: ‘n’ = 0 (default). Mode Enabled: ‘n’ = 1. When enabled, only Phase 1 ‘Rate’, ‘Volume’ and 

Pumping Direction can be changed. Cannot be enabled when the Pumping Program is currently programmed 

with a multiple Phase Program. 

6.14 Error and Alarm Messages 

If the value entered is beyond the pump's capabilities or is invalid, or an operational problem occurred, one of 

the following error or alarm messages will be displayed: 

Pump motor stalled alarm. 

Value entered is ‘Out Of Range’ of the pump’s operational limits. 

nn An out of range error occurred at Pumping Program Phase number ‘nn’, or the value just 

entered is out of range. Check the pumping parameters and syringe diameter. 

nn A Pumping Program error was encountered at Pumping Program Phase number ‘nn’. 

The indicated Phase is invalid in the context of the entire Pumping Program. 

Key pressed is not currently applicable. 

A communications time-out alarm occurred with an attached computer while operating in 

the “Safe Communications Mode”. This most likely indicates that the RS-232 cable was 

detached or the communication program on the computer has ended without turning off 

“Safe Communications Mode”. 
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n

An error was detected during power up, where ‘n’ indicates the error. If n=1, then the 

values stored in the pump’s non-volatile memory were invalid and were reset. If n=2, 

then the non-volatile memory may need to be replaced. 

Pump settings are locked out from the keypad. The lockout key is needed to change 

settings. Lockout can also be reset with the reset function. 

6.15 Status Messages

Indicates pumping rate units change mode. The units LED's will also be blinking. 

Indicates that the Pumping Program has paused and is waiting for the user to press 

‘Start’, or for an external operational trigger, to continue. 

Indicates that the pump is busy completing a long operation. 

Indicates that the “Volume to be Dispensed” is 0.00, and is turned off. This is the 

continuous pumping mode. 

Indicates that the pump is purging. Displayed while holding down the 'Start/Stop' key. 

nn Indicates that the Pumping Program paused and is waiting for the user to select a subprogram. 

Indicates that the pump’s RS-232 communications is set for either Reciprocating or Dual 

pumping modes. One of these messages will be briefly displayed while the pump is 

searching for the secondary pump. Normally, seeing one of these messages would 

indicate that the secondary pump is not attached or communication cannot be established. 

Indicates that the Pumping Program entry mode has been entered, possibly after the 

‘Rate’ key was pressed and held. A momentary press of the ‘Rate’ key will return the 

display to the pumping rate. This display may also indicate that the first Pumping 

Program Phase is not a ‘Rate’ function. 

7. Operation

Before the pump can be operated, the pumping data must be setup. At minimum, the 

syringe inside diameter and a non-zero pumping rate needs to be set. The operation of the 

pump can then be started from the keypad, TTL I/O connector, or from RS-232 control. 

From the keypad, pressing the ‘Start / Stop’ key will start the pump operation. 

7.1 Syringe Inside Diameter

The syringe inside diameter can only be set while the Pumping Program is stopped. Use the up arrow keys to 

set the diameter value. While the diameter value is being set, the ‘mm’ LED will blink. The new diameter 

value is stored after pressing any non-arrow key, or after a 2 second delay. 

Valid syringe diameters are from 0.1 mm to 50.0 mm. If the diameter is out of this range, the display will 

show ‘oor’. Pressing any key restores the diameter display to its previous value. Changing the syringe 

diameter will not zero any current settings. Section 12.7, “Syringe Diameters and Rate Limits”, is a 

representative list, for reference, of syringe diameters for various syringe manufacturers and syringe sizes. 

7.1.1 Default Volume Units 

The units of the accumulated infusion and withdrawal volumes and the “Volume to be Dispensed” are set 

according to the diameter setting. NOTE: A change in the volume units will affect all “Volume to be 

Dispensed” settings in the Pumping Program. If the default volume units are changed (see next section), the 

selected volume units will remain in effect until a reset function is performed. 

From 0.1 to 14.0 mm Syringes smaller than 10 mL: Volume units are ‘μL’ 

From 14.01 to 50.0 mm Syringes greater than or equal to 10 mL: Volume units are ‘mL’ 
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7.1.2 Changing Volume Units 

The Volume Units used for accumulated volumes and the “Volume to be Dispensed” settings can be changed

to either ‘mL’ or ‘μL’. Volume Units can only be changed while the Pumping Program is stopped. A change 

in the Volume Units will affect all “Volume to be Dispensed” settings in the Pumping Program. 

To change the Volume Units, display the “Volume Dispensed” by pressing the “Volume” key once or twice. 

The current Volume Units and the “Dispensed” LED will be lit. 

Set the Volume Dispensed to 0.000 if it is not zero: Press and hold any up arrow key until the Volume

Dispensed is set to 0.000. 

Now, pressing any up arrow key will change the display to and the current Volume Units will 

blink. 

Then, press any up arrow key to switch the Volume Units between ‘mL’ and ‘μL’. Press any non-arrow key or 

wait 2 seconds to enter the new Volume Units. The display will blink when entered. The selected Volume 

Units will remain in affect and override the default Volume Units. Changing the diameter will no longer 

change the Volume Units. Performming a system reset will cancel the override and allow the Volume Units to 

change to the default Volume Units when setting the syringe diameter. 

7.2 Start/Stop Triggers 

The Pumping Program can be started or stopped from three sources: The keypad ‘Start/Stop’ key, RS-232

‘RUN’ command, or the TTL I/O Operational Trigger input. Each can control the Pumping Program’s 

operation. 

7.3 Operating the Pump 

When the “Start/Stop” key is pressed, the Pumping Program begins to operate, starting with Phase 1. If the 

current Program Phase specifies a pumping rate, the pump will begin pumping, and the ‘Pumping’ LED will 

be lit. The pumping direction will depend on the Phase setup. 

While pumping, the pump will pump continuously in the current Program Phase, unless a “Volume to be 

Dispensed” is set, or an Event trigger is set. If a “Volume to be Dispensed” is set, the Program Phase will be 

complete after the set volume has been infused or withdrawn, measured from the start of the Phase. 

The display can be changed by pressing the ‘Rate’, ‘Volume’, or ‘Diameter’ keys. 

7.4 Purging 

To purge the syringe, with the Pumping Program stopped, press and hold the 'Start/Stop' key. The Pumping 

Program will start then, after one second, purge will begin. The pump will pump at its top speed in the 

currently set direction. Purging will continue until the 'Start/Stop' key is released, and then the pump will stop. 

While purging the display will show: . 

7.5 Changing the Pumping Rate and Direction While Pumping 

Except with some complex Pumping Programs, the pumping rate can be changed while the pump is operating. 

To change the pumping rate, display the pumping rate by momentarily pressing the ‘Rate’ key. With the

pumping rate is displayed, press the up arrow keys to change the rate. The rate units will blink while entering 

the rate. Rate units cannot be changed while pumping. 

The new rate is stored after a 2 second delay or by pressing a non-arrow key. If the new rate is within the 

operating range of the pump, the display will blink and the new rate will be stored in the current Program 

Phase and the pump will begin to pump at the new rate. If the new rate is out of the operating range of the 

pump, the display will show nn . Pressing any key clears the error message. 

The pumping direction can be changed while pumping if the “Volume to be Dispensed” is 0.0 (off). Pressing 

the direction key will immediately change the pumping direction and store the pumping direction in the current 

Program Phase. Also changing the pumping direction changes the accumulated “Volume Dispensed” 

according to the new pumping direction. 

7.6 Volume Dispensed 

When the total accumulated volume pumped is displayed, the ‘ml’ or ‘μl’ LED is lit and the ‘Dispensed’ LED 

is lit. Volume is computed based upon the syringe inside diameter setting. The accumulated Volume 
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Dispensed can be displayed by pressing the ‘Volume’ key one, two, or three times, depending on the current 

display. 

The volume is accumulated separately for infusion and withdrawal. When the pump changes direction, the 

“Volume Dispensed” changes to the accumulated volume for the current pumping direction. 

The “Volume Dispensed” accumulations for infusion and withdrawal are reset to 0 when: 

A) With the pump stopped, pressing and holding any up arrow key while displaying the “Volume 

Dispensed”. 

B) A sub-program is selected when the Pumping Program executes a Program Selection function. 

C) The syringe diameter is changed. 

D) From the RS-232 clear “Volume Dispensed” command (CLD) or Clear Dispense function. 

E) The accumulated Volume Dispensed rolls over from 9999 to 0. 

F) The pump is powered on. 

7.7 Resuming When Paused 

If the Pumping Program is stopped before the completion of the Pumping Program, the ‘Pumping’ LED will

blink, indicating that the Pumping Program is paused. While the ‘Pumping’ LED is blinking, starting the 

pump again will resume the Pumping Program where it was stopped. This means that the Pumping Program 

will continue at the point in the Phase where it was stopped and the ‘Volume to be Dispensed’ will still be 

referenced from when the Program Phase first started. 

Pressing any key other than the ‘Start’ key will cancel “Pumping Program paused” and the ‘Pumping’ LED

will stop blinking. When the Pumping Program is started again, it will start from the beginning (Phase 1). 

7.8 Pump Stalled 

WARNING: Do not use Stall as a normal method of stopping the pump. Continuous stalling will cause 

damage to the drive nut. 

When the operation of the motor is impeded due to excessive force needed to drive the syringe, or when then 

collar clamp position is reached, the pump will stop, pausing the Pumping Program, and a stall alarm will 

occur. The display will show , the ‘Pumping’ LED will blink, and the buzzer will sound 

continuously if alarms are enabled. Also, if the RS-232 Safe Mode is enabled, an auto-alarm message will be 

sent to an attached computer. 

Pressing any key will stop the buzzer and clear the alarm. When the problem causing the pump motor to stall 

has been corrected, the Pumping Program can be resumed from any start trigger source: ‘Start’/’Stop’ key, 

TTL input, or RS-232 command. 

8. Setup Configuration 

To change or view the setup configuration, the Pumping Program must be stopped. Press the 

‘Diameter’/‘Setup’ key until the first parameter, ‘PF’ is displayed. After 2 seconds, or when any non-arrow 

key is pressed, the next parameter will be displayed (see sec. 6.12, ‘Setup’ Key). Pressing an arrow key under 

a value will increment, select, or scroll through the valid values for the parameter. The Setup Configurations 

will be displayed in the following order: 

 n Power Failure mode, where ‘n’ is the current setting. 

 n Low Noise mode, whre ‘n’ is the current setting 

 n Alarm mode, where ‘n’ is the current setting. 

 Display TTL I/O external logic connector settings. Press any arrow key to select. 

If TTL is selected, the following TTL logic settings will be displayed: 

aa Operational Trigger default setting. ‘aa’ is current setting. 

aa Directional control setting. 'aa' is current setting. 

n 'Pump Motor Operating' TTL output pin configuration. 'n' is the 

current setting. 
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n *** The "Lockout Disable Key" needs to be inserted to display this setting. *** 

Locks out changing settings from the keypad. 'n' is the current setting. 

 n Keypad and notifications beep enable, where ‘n’ is the current setting. 

If standard communications mode with a computer is set, then the following are displayed: 

nn RS-232 pump network address, where ‘nn’ is the network address. 

nnnn RS-232 pump network baud rate, where ‘nnnn’ indicates the baud rate. 

Otherwise, the current communications mode will be displayed: 

, , or Reciprocating, Dual Pump, or Alternating 

Communications Mode. 

8.1 Power Failure Mode 

 n Setting: ‘0’ = Disabled, ‘1’ = Enabled. 

When enabled, if the Pumping Program was operating when power to the pump was disrupted, the Pumping 

Program will automatically start operating when power is reconnected to the pump. Pressing any key on the 

keypad while powering up the pump will stop the Pumping Program from starting. 

 CAUTION: The Pumping Program will start operating from the beginning of the Pumping Program 

(Phase 1), regardless of what part of the Pumping Program was operating when the power was disrupted. 

When the NE-1000 syringe pump is used as a component in an automated infusion/withdrawal dispensing 

system, a Pumping Program can be designed to automatically synchronize the pusher block at the start of the 

Pumping Program. This would be accomplished using attached sensors that send signals to the Pumping 

Program. 

8.2 Low Noise Mode 

 n Setting: ‘0’ = Disabled, ‘1’ = Enabled. 

A side effect of the NE-1000’s high precision micro-stepped motor driver is a high frequency resonance sound 

at very low pumping speeds. This mode minimizes this sound by reducing the micro-stepping, increasing

pulsations. 

8.3 Audible Alarm Enable 

 n Setting: ‘0’ = Disabled, ‘1’ = Enabled. 

When alarms are enabled, a steady buzzer alarm will sound during alarm conditions, such as when the motor 

stalls: Pressing any key will stop the alarm. 
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8.4 TTL I/O Operational Trigger Default Configuration 

aa Configures the default mode of the TTL I/O ‘Operational Trigger’ (pin 2) that will control the 

Pumping Program’s operation. This default setting can be overridden within a Pumping Program. (See sec. 

11.1, TTL I/O Operational Controls). The 2 letter configuration Setting parameter to the right of the colon (:) 

is defined in column ‘Setting’ as follows: 

Setting

<aa> 

RS-232 Command Setting 

FUN TRG <n> 

<n> => 

Name Function 

Ft 0 Foot Switch Falling edge starts or stops the Pumping Program 

FH 1 Foot Switch Hold Falling edge starts the Pumping Program 

Rising edge stops the Pumping Program 

F2 2 Foot Switch Reversed Rising edge starts or stops the Pumping Program 

LE 3 Level Control Falling edge stops the Pumping Program 

Rising edge starts the Pumping Program 

St 4 Start Only Falling edge starts the Pumping Program 

t2 5 Start Only Reversed Rising edge starts the Pumping Program 

SP 6 Stop Only Falling edge stops the Pumping Program 

P2 7 Stop Only Reversed Rising edge stops the Pumping Program 

rL 8 Start on Low Level Start Pumping Program on a low level 

rH 9 Start on High Level Start Pumping Program on a high level 

SL 10 Stop on Low Level Stop Pumping Program on a low level 

SH 11 Stop on High Level Stop Pumping Program on a high level 

oF 12 Trigger off Disable trigger 

Et 13 Trigger Event Pumping Program Function Only: Stop Trigger 

triggers an event instead of stopping the pump 

Bt 14 Button Trigger Event Pumping Program Function Only: Pressing ‘Stop’ 

key triggers an event instead of stopping the pump 

8.5 TTL I/O Directional Control Input Configuration 

aa Configures how the TTL input ‘Pumping Direction’ (pin 3) will control the pumping direction. 

(See sec. 11.1, TTL I/O Operational Controls). The 2 letter configuration parameter to the right of the colon 

(:) is defined as follows: 

Setting Name Function 

rE Reciprocating Pumps Falling edge: Infuse; Rising edge: Withdraw 

dU Dual Pump Falling edge: Withdraw; Rising edge: Infuse 

The setting names are relevant to a 2 pump system, whereby the ‘Directional Control Input’ TTL pin is 

attached to the second pump’s ‘Pumping Direction Output’ TTL pin. 

In addition, “Directional Control Input” will affect how the “Sticky Direction” function operates. See “ Sticky 

Direction”, sec: 6.8.1 
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8.6 Pump Motor Operating TTL Output Configuration 

n Configures the functionality of the 'Pump Motor Operating' TTL output pin (TTL pin 7). 

Settings: 0: Sets the output to logic high only when the motor is operating (pumping). 

 Sets the output to logic low when the motor is not operating or when the Pumping Program is 

executing a pause timer or is stopped 

 1: Sets the output to logic high when the motor is operating (pumping) or when the Pumping 

Program is executing a pause timer. Also alters operation of Alternating Communications Mode. 

Set the output to logic low when the Pumping Program is stopped 

8.7 Keypad Lockout 

n Setting: '0' = Disabled, '1' = Enabled. 

 *** The "Lockout Disable Key" needs to be inserted into the TTL I/O connector to display this setting*** 

When enabled, the "Lockout Disable Key" needs to be inserted in the TTL I/O connector to change any of the 

pump's settings. When the key is removed, the user can only start or stop the pump and review current

settings. Settings can still be changed from RS-232. When the user attempts to change a setting, the message 

 will be displayed. 

Auto-Run Mode: When used in conjuction with the Sub-Program Select programming function as Phase 1, the 

pump will enter Auto-Run Mode. In this mode, on power up, the Pumping Program will immediately begin to 

execute and the user would be prompted to enter a Sub-Program number. 

The "Lockout Disable Key" connects the "Program Input", TTL connector pin 6, to Ground, pin 9. The 

"Lockout Disable Key" is available as an accessory item. 

Lockout can also be disabled by performing a system reset, see sec. 6.13.2, "Reset Pumping Program." 

8.8 Keypad and Notification Beep Enable 

 n Setting: ‘0’ = Disabled, ‘1’ = Enabled. 

When enabled, a beep will sound as follows: 

Condition Buzzer Action 

Pumping Program ended Continuous beeping 

Pumping Program paused for start trigger Continuous beeping 

A keypad button is pressed Single beep 

8.9 RS-232 Pump Network Configuration 

nn The pump can be configured to communicate either with a 

computer or another pump. Communications with a computer (Address Mode) is the default setting and will 

be indicated by the [Ad:nn] display. 

When in the default Address Mode, up to 100 pumps can be attached to a computer in a single pump network. 

The network address is defined by the 2 digits to the right of the colon (:). The valid range of addresses is 

from ‘00’ to ‘99’. If only one pump is attached to the computer, set the network address to 0, [Ad:00] (factory 

default). 

After the network address is displayed, the baud rate is displayed. Each pump in the pump network and the 

computer must have the same baud rate setting. Any arrow key can be used to scroll through the selection of 

baud rates. The supported baud rates are: 300, 1200, 2400, 9600, and 19200 (displayed as [1920]). 
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To change the communications mode: 

With the network address displayed [Ad:nn], press the left-most arrow key to enter the communications mode 

menu. Pressing any arrow key will scroll through the menu selections: 

Address Mode: Default communications with a computer mode. 

Reciprocating Pumps. Sends Start/Stop, Pumping rate and reverse 

pumping direction to an attached secondary pump. 

Reciprocating Pumps. Sends Start/Stop, Pumping rate and same 

pumping direction to an attached secondary pump. 

Alternating Pumps. Starts second pump when current pumping 

program stops. Modified by TTL RUN.1 and OUT.0 setting. 

Note: Communications with a computer requires the accessory cable: CBL-PC-PUMP-7. 

 Dual pump modes requires the accessory cable: CBL-DUAL-3 

In Reciprocating or Dual Pumps Modes, the secondary pump must be left in its default communications setting 

of Address Mode, Address 0, and 19,200 baud rate. See the documentation with CBL-DUAL-3 cable for more 

detailed information. 

9. Pumping Program 

A Pumping Program is simply a pre-defined sequence of actions, or functions, which guarantees consistent and 

precise operation of the pump, automatically, and with or without any user intervention. A Pumping Program 

can be as simple as continuous pumping at a fixed infusion rate. Or a Pumping Programs could consist of a 

pumping rate and direction of pumping for a specified volume, then switch to another pumping rate. Also a 

Program can interact with external devices through the TTL I/O connector, make decisions, or stop pumping 

for a period of time. 

Programs are broken into individual operations called Phases. Each Phase consists of a function that can be a 

control function or pumping function. A pumping function, such as ‘RATE’, consists of a pumping rate,

optional “Volume to be Dispensed”, and the pumping direction. 

Complex dispensing systems can be designed, involving multiple liquids, each dispensed from a different 

pump, plus other equipment and sensors. Pumping Programs can be designed for each pump which enables 

multiple pumps to synchronize with each other, and the other equipment and sensors, using a cable connected 

to the TTL I/O connectors of each pump. 

When the Pumping Program is started, either from the keypad, TTL I/O connector, or from RS-232, the 

Pumping Program will begin with Phase 1 of the Program. After the completion of each Phase, the pump will 

immediately start the next consecutive Phase. This linear sequence of Phases can be altered by certain 

functions that direct the Pumping Program to continue operation with a different Phase number. Some 

functions can change the order of operation conditionally based on external events. 

9.1 How to Enter Pumping Programs 

A Pumping Program can be entered directly from the pump’s keypad, or uploaded from a computer using 

PUMPTERM or SyringePumpPro software. A Pumping Program can be stored in a text file and edited with 

any word processor, which facilitates development and maintenance of the program. A Pumping Program 

generator spreadsheet is available to assist in developing a Pumping Program and to create the text file for 

uploading to a pump. 

Start by organizing your pumping requirements into specific actions and conditions that can then be 

programmed into Phases. For more advance programming methods, common groups of Phases can be 

grouped together and repeated multiple times using looping and jump functions. 

The current values of the pumping rate, optional “Volume to be Dispensed”, and pumping direction, all refer to 

the currently selected Phase. To display or change the currently selected Phase, enter “Program Entry Mode” 

by pressing and holding the ‘Rate’/’Program Phase #’ key until the current Phase number is displayed. The 

display will show , where ‘01’ refers to Phase 1. The pump will now be in “Program Entry 
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Mode”. If the current Phase is not 1, press and hold the ‘Rate’/’Program Phase #’ key until the display is as 

shown. The pump will now be in Phase 1. 

When in “Program Entry Mode”, with the display showing the Program Phase number, pressing the 

‘Volume’/’Program Function’ key will display the current “Program Function” for this Phase. If the current 

function is ‘RATE’, then a pumping infusion or withdrawal can be setup for this Phase. 

To change the “Program Function” selected, use the arrow keys to scroll through the functions until the 

required function is displayed. If the function has an associated parameter, enter the parameter after the 

function has been stored. 

Momentarily pressing the ‘Volume’/’Program Function’ key again will exit “Program Entry Mode” and 

display the “Volume to be Dispensed.” The pumping rate data, which includes the pumping rate, “Volume to 

be Dispensed” and pumping direction, can now be setup as previously described. 

When finished setting up the pumping rate data for the current Phase, enter “Program Entry Mode” again to 

select the next Program Phase. Press and hold the ‘Rate’/’Program Phase #’ key until the Phase number is 

displayed. Then use the arrow keys to set the Phase number to the next Phase to be setup. Pressing the rightmost arrow once will set the Phase to Phase 2. Now all pumping data will refer to Phase 2. The second Phase 

can now be setup as described above for Phase 1. 

Continue selecting Phase numbers and entering the infusion or control setup for each Phase of the Pumping 

Program. The entire Pumping Program will be stored in non-volatile memory. 

Use the ‘STOP’ function to stop the pump and end the Pumping Program. If the Pumping Program does not

operate the pump continuously, the last Phase of the Pumping Program must be a ‘STOP’ function (unless the 

last Phase number is the maximum Phase number). 

When the Pumping Program is started, with the ‘Start / Stop’ key, TTL I/O input, or RS-232 command, the 

Pumping Program will begin operating from Phase 1. 

Very complex dispensing Programs can be created with the Program functions available. Section 9.3 contains 

a detailed description of all the functions. 

9.1.1 Pumping Program Phase Number 

To set the current Program Phase number, enter “Program Entry Mode” and display the current Program Phase 

number. 

Using the right-most 2 arrow keys, change the selected Program Phase number. The displayed Program Phase 

number now becomes the currently selected Program Phase number. All function and pumping rate data will 

now refer to the currently selected Program Phase number. 

If the maximum Program Phase number, 41, is exceeded while changing the Phase number, the displayed 

Phase number will automatically be set to the maximum Program Phase number. 

9.2 Pumping Program Edit Functions 

When developing or updating a large Pumping Program, occasionally one or more Program Phases needs to be 

added or removed from the Pumping Program. Having to re-enter the entire Program could certainly be a

tedious task. 

Two Program entry functions are available to simplify the Program development process. These are the 

‘Insert’ and ‘Delete’ functions. They allow a Program Phase to be removed from any point in the Pumping 

Program or a Phase to be inserted at any point. 

To access these functions, enter “Program Entry Mode” to display the Program Phase number [PH:nn]. Select 

the Program Phase number that is to be deleted or the Phase number where a new Phase is to be inserted in the 

Pumping Program. 

For example, if a Phase is to be inserted between Phases 24 and 25, select Phase 25. The inserted Phase will 

be at Phase 25, and all the Phases starting with the old Phase 25 will be shifted one Phase higher. 

Using either of the 2 left-most arrow keys, under ‘PH’ in the display, select the editing function. The arrow 

keys will scroll through the selection of editing functions: 
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Editing Function Description 

PH Phase select 

In Insert Phase 

dE Delete Phase 

When the required editing function is displayed, press the ‘Rate’/’Program Phase #’ key before the 2 second 

time out. After the time out, or with any other key press, the function will be canceled. 

If ‘Insert’ or ‘Delete’ was selected, the Pumping Program will be edited. While the Program is being edited, 

the display will show [BUSY]. 

If ‘Insert’ was selected, all Phases from the selected Phase to the maximum Phase will be moved to the next 

higher Phase, with the original maximum Phase being deleted. The inserted Phase will default to a ‘RATE’ 

function, if it is the first Phase, or a ‘STOP’ function otherwise. 

If ‘Delete’ was selected, the selected Phase will be removed, and all Phases higher than the selected Phase, up 

to the maximum Phase, will be moved to the next lower Phase. 

All Phases that reference the Phase number of another Phase, such as a ‘jump’ function or an ‘event’ function, 

will be automatically updated. The referenced Phase numbers will be automatically adjusted to compensate 

for the section of the Pumping Program that was shifted during the operation of the edit function. 

Ultimately, the easiest method to maintain and develop Pumping Programs is to download the Pumping 

Program to the pump from an attached computer. This would allow a single Pumping Program to be quickly 

programmed into multiple pumps. The computer would only need to be attached during the download since

the Pumping Program is stored in the pump’s non-volatile memory. 

Also, a Pumping Program can be uploaded to an attached computer, which could then store it and produce a 

printout of the Pumping Program. 

9.3 Program Function Descriptions 

 Each program function must be in a separate Program Phase 

9.3.1 ‘rAtE’: Rate Function 

 Defines a pumping function with a fixed pumping rate. This function defines a pumping setup 

consisting of the pumping rate, optional “Volume to be Dispensed”, and pumping direction. Use the ‘Rate’, 

‘Volume’, and ‘Pumping Direction’ keys to set or review the pumping setup. For continuous pumping, set the 

“Volume to be Dispensed” to 0.0 (off). The “Volume to be Delivered” is disabled when the display reads 

[ off]. 

9.3.2 ‘FILL’: Fill Function 

 The Fill function reverses the pumping direction and withdraws or dispenses the volume 

dispensed or withdrawn. After a series of arbitrary dispenses, the Fill Function uses the Volume Dispensed to 

automatcally refill the syringe. The Volume Dispensed is cleared when the Fill Function begins. 

The pumping rate can be set, as with the Rate Function. 

Fill at the current dispense/withdraw rate: If the Fill function’s pumpng rate is set to 0.0, the previous 

function’s pumping rate will be used for the Fill rate. 

9.3.3 ‘InCr’: Increment Rate Function 

 The increment and decrement functions operate the same as the ‘RATE’ function, except that the 

specified rate is added (‘INCR’) or subtracted (‘DECR’) from the current pumping rate. The current pumping 

rate when the function is executed is the base pumping rate for the function. If no base pumping rate exists, 

such as when executing a pause function or when the Pumping Program is first started, a Program error will 

occur and the Program will stop. 

The pumping rate units will be the same as the base pumping rate, and therefore cannot be set, nor are they 

displayed, with the pumping rate increment or decrement value. As with the ‘RATE’ function, a “Volume to 

be Dispensed” and pumping direction can be specified for the increment and decrement functions. 
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When used within a Program loop, the pumping rate can be incremented or decremented in small step 

intervals. 

9.3.4 ‘DECr’: Decrement Rate Function 

 The decrement function subtracts the specified rate from the current pumping rate. For a full 

description, see section 9.3.3, ‘InCr’: Increment Rate Function.. 

9.3.5 ‘StoP’: Stop Pumping Operation and End the Program 

 Stops the pumping operation and stops the Pumping Program. The Pumping Program will begin 

at Phase 1 when started again. An implicit ‘Stop’ function is executed when the Program exceeds the 

maximum Phase number during operation. 

 If alarms are enabled, the buzzer will beep continuously when the Pumping Program stops. 

9.3.6 ‘JP:nn’: Jump to Phase 

nn The ‘Jump’ function alters the consecutive operation of Program Phases. When executed, the 

Pumping Program will continue operation with Phase ‘nn’. 

9.3.7 'Pr:In': Sub-Program Selection Input 

The Pumping Program can be broken into sub-programs which can be selected by the user. 

Auto-Run Production Mode: When Phase 1 is set to Program Selection Input, and Lockout Mode is selected, 

the pump will enter Auto-Run Mode. When the pump is powered on, it will immediately begin executing the 

Pumping Program. The user will immediately be prompted to enter a sub-program number. This permits a set 

of production dispenses to be programmed into the pump. The user then would only be able to select from one 

of these production dispenses and not make any changes. 

Foot Switch Trigger Feature: If the Pumping Program was Paused, and the Paused Phase was a continuous

pumping Rate function, then starting the pump with a foot switch will cancel the Pause and restart the

Pumping Program Phase 1 causing the current program selection to be re-executed. 

When the Program Selection Input function is executed, the Pumping Program pauses and 

displays: nn , where 'nn' is the Program Selection. 

Using the right 2 arrow keys, under 'nn', the user enters the Label of the required Pumping Program. The 

Pumping Program Label is defined by any number from 0 to 99. When the 'Start' key is pressed, the Pumping 

Program continues execution at the Program Phase with the selected Pumping Program Selection Label. Also, 

the accumulated infusion and withdrawal dispensed volumes are set to zero. 

The pump searches for the selected Pumping Program Selection Label starting with the current Phase and

continuing to the end of the Pumping Program memory, then from Phase 1 until the current Phase is reached 

again. If the selected label is not found, the 'out of range' error message is displayed. Pressing 

any key returns the display to the Program Selection Input display. 

If more than one Phase is defined with the same label, then execution continues with the first matching label 

encountered. The last selected program label is stored in non-volatile memory and becomes the default label 

the next time the current Program Phase is executed. More than one Program Selection Input function can be 

defined and placed at any Program Phase needed. To cancel the Program Select Input and stop the Pumping 

Program, turn the power to the pump off and on. 

If alarms are enabled, the buzzer will beep continuously while waiting for the start trigger. 
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9.3.8 'Pr:nn': Sub-Program Start Label 

The Sub-Program Start Label function defines the start of a Pumping Program sub-program that 

can be selected by the user during Pump Program execution. 

After selecting the function, change '00', if needed, to a unique Program Label, from 0 to 99. See sec: 9.3.7, 

'Pr:In': Sub-Program Selection Input for a full description. Place a Sub-Program Start Label, with a unique 

number for each Sub-Program, from 0 to 99, at the starting Phase of each sub-program section. 

When the Pumping Program encounters a Sub-Program Start Label in normal execution, it will be interpreted 

as “Jump to Phase 1” [JP:01], ending the sub-program, and, assuming Phase 1 is a Sub-Program Select 

function, [Pr:In], the user will be immediately prompted to select a sub-program. 

9.3.9 ‘LP:ST’: Define Starting Phase of Loop 

 Defines the start of a Program loop. For a full description of Program looping, see sec. 9.3.11, 

‘LP:nn’: . 

9.3.10 ‘LP:EN’: Define Continuous Loop End 

 Loops to the most recently executed, unpaired, ‘loop start’ Phase, or Phase 1 if none. This 

function allows a section of the Program to be repeated continuously. For a full description of Program 

looping, see sec. 9.3.11, ‘LP:nn’: . 

9.3.11 ‘LP:nn’: Define Loop End and Loop Repetitions 

nn Repeats execution of the defined loop ‘nn’ times. 

Loop starts and loop ends are uniquely paired during looping. When an unpaired ‘loop end’ function is 

executed, it is paired with the most recent unpaired ‘loop start’ function executed (‘LP:ST’). If no unpaired 

‘loop start’ function exists, Phase 1 is used as an implied unpaired ‘loop start’. This pairing defines the loop 

and the range of Phase numbers between the paired loop functions defines the scope of the loop. 

When a ‘loop end’ function is executed, Program operation continues with the ‘loop start’ function paired with 

the loop end function. There are 2 ‘loop end’ functions: Loop continuous (‘LP:EN’) and Loop for a preset 

number of iterations (‘LP:nn’), indicated by ‘nn’. Each time a paired ‘loop end’ function is executed, an 

iteration of the loop is complete. With the ‘LP:nn’ function, after ‘nn’ number of loop iterations, the defined 

loop is complete and Program execution continues with the next Program Phase after the ‘loop end’ function. 

The loop is then no longer defined or paired. 

While executing Phases within the scope of a defined loop, another ‘loop start’ and ‘loop end’ can be paired 

and become a defined loop within the scope of the first loop, which is referred to as the outer loop. The new 

loop being referred to as the inner loop. The pairing of a loop within a paired loop is referred to as nesting of 

loops, with each loop being one nested layer for the duration of the loops pairing. Loops can be nested for a 

total of 3 layers deep. Loops can only be nested within the scope of an outer loop. 

9.3.12 'PS:nn': Pause Pumping 

If ‘nn’ is non-zero, the Pumping Program will pause pumping (stops pumping) for ‘nn’ seconds. When 

executed, the display will show nn , with ‘nn’ decrementing to indicate the number of seconds until 

the next Program Phase is executed. After the pause interval, the next Program Phase will be executed. 

To set a pause time in tenths of seconds, select the decimal point between the digits. To select the decimal 

point, press and hold the right-most arrow key until the right-most digit scrolls to 9. After 9, the decimal point 

between the 2 digits will toggle on and off . Release the key when the decimal point is displayed, 

or cleared, as required. Now enter the required pause time from 0.1 to 9.9 seconds. While executing a pause 

time set in tenths of seconds, the display will only show '01' seconds during the pause. 

For pauses longer than the ‘99’ second maximum pause for this function, put the pause function within a 

Program loop. A Program section with the following functions in consecutive Phases: 

 [LP:ST] [LP:ST] [PS:60] [LP:60] [LP:24], 
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will pause the Pumping Program for 24 hours. 

If ‘nn’ is ‘00’ then the Pumping Program pauses and waits for a start trigger to resume the Program. The 

display will show when waiting for a start trigger. 

After the start trigger, the Program will resume with the next Phase. The start trigger can be from any source, 

the ‘Start’/’Stop’ key, the TTL I/O Operational Trigger, or from RS-232. Any other key input will stop and 

reset the Pumping Program. 

If alarms are enabled, the buzzer will beep continuously while waiting for the start trigger. 

9.3.13 'IF:nn': Jump to Phase If External Trigger 

nn The ‘IF’ function conditionally alters the Pumping Program’s execution based on an external 

signal. 

When executed, if the TTL I/O Program Input pin (pin 6) is low level, then the Pumping Program continues 

operation with Phase number ‘nn’. Otherwise, the Pumping Program continues operation with the next Phase. 

9.3.14 'Et:nn': Setup Event Trigger Jump Phase 

nn The ‘Event’ function sets a background event trap that is triggered by an external signal. 

This one time background trap, or interrupt, stays set during the Pumping Program’s entire execution until it is 

triggered, redefined, or reset. This function has no other effect on the operation of the pump until it is 

triggered. 

The event is triggered with either: 

1) A falling edge (high to low TTL transition) on the TTL ‘Event Trigger’ input (pin 4). 

2) A low level on the 'Event Trigger' input pin of at least 200 ms at the time the function is executed. 

3) The RS-232 ‘RUN E’ command. 

When triggered, the current operation of the pump and the Pumping Program is interrupted, and the Pumping 

Program immediately continues operation (jumps to) with Phase number ‘nn’. 

After being triggered, the event trigger is reset. If an event trigger function is executed (either 'Et' or ES' 

function) while another event trap is still set, the new event trigger will replace the previous event trap. Only 

one event can be defined at any time. 

9.3.15 'ES:nn': Setup Event Square Wave Trigger Jump Phase

nn The 'Event Square Wave' function operates the same as the 'ET' 'Event' function, with the 

exception of the triggering conditions. 

The event is triggered with either: 

1) The rising or falling edge of the TTL ‘Event Trigger’ input (pin 4). 

2) The RS-232 ‘RUN E’ command. 

Therefore, a square wave function on the inupt pin can be used to toggle the pump between 2 sections of a 

Pumping Program. An example of this would be a Pumping Program that switched between a slow and fast 

pumping rate, controlled by a square wave input. 

9.3.16 'Et:rS': Event Reset 

 ’Event Reset’ cancels a previously set event trap by either the 'ES' or 'ET' function. 

9.3.17 ‘CLr.d’: Clear Total Volume Dispensed 

 Sets the total volume dispensed to 0. Both infusion and withdraw volumes are reset. 
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9.3.18 ‘tr:aa’: Override Operational Trigger Configuration

aa Sets the Operational Trigger (pin 2) to mode ‘aa’, overriding the default setup Operational 

Trigger Configuration. See Sec. 8.4, ‘TTL I/O Operational Trigger Default Configuration’, for the settings for 

parameter ‘aa’. The default setting for the Operational Trigger is always used to start the Pumping Program. 

9.3.18.1 Trigger Event-Trap 

 ‘Button Trigger Event Trap’ redirects a press of the ‘Stop’ key to the background event trap. 

 ‘Trigger Event Trap’ redirects a stop pump Operational Trigger to the background event trap. 

Instead of stopping the pump, an event defined by the ‘Event’ or ‘Event Square Wave’ function will be 

triggered, causing the Pumping Program to continue execution at the Phase number defined in the Event 

function. 

If an Event Trap has not been defined, then the Pumping Program continues execution at the next program 

phase. This is useful if the pump is executing a continuous infusion Phase. The pump can continue to infuse 

until a foot switch is pressed. The pumping program can then jump to a different Phase, such as a withdraw 

Phase, then stop the pump. 

The Trigger Event Trap is a one-time function. After triggering an Event Trap, the Trigger Event Trap is 

cleared. The Trigger Event function will not affect the current trigger configuration. 

9.3.19 'OUt.n': Set TTL Output Pin 

n Set ‘Program Output’ TTL I/O output (pin 5) to level ‘n’. If ‘n’ = 0, the output pin will be set 

low. If ‘n’ = 1, the output pin will be set high. 

9.3.20 'bEEP': Beep 

 Sounds a short beep. 

9.4 Pumping Program Examples 

9.4.1 Example 1: 2 Step Rate 

0 5 30 ml Dispensed

0

2.5

500

ml/hr Rate

Infuse 5.0 mL at 500 mL/hr, and then infuse 25.0 mL at 2.5 mL/hr. Then stop the pump. 

Phase Function Rate Volume Direction 

1 RATE 500 mL/hr 5.0 mL Infuse 

Phase Function Rate Volume Direction 

2 RATE 2.5 mL/hr 25.0 mL Infuse 

Phase Function 

3 STOP 
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9.4.2 Example 2: Repeated Dispenses with Suck Back 

ml/hr R

ate

Time

0

0

750

  

  

5:00

:30

Dispense 2.0 mL with a 5 minute pause between dispenses. In addition, after each dispense, a volume of 0.25 

mL is sucked back to prevent dripping. Also, 30 seconds before the end of the pause interval, a beep is 

sounded to alert the operator to prepare for the next dispense. 

Starting with the second dispense, 0.25 is added to the volume dispensed to compensate for the sucked back 

volume of the previous dispense. By changing the last Phase to a [LP:nn] function, the total number of 

dispenses can be set. 

When entering a function with associated data, such as with the ‘Pause’ in Phase 5, or the ‘Loop’ in Phase 6, 

the function is entered in 2 steps. First select the function and store it. Then enter the associated data. 

Phase Function Rate Volume Direction 

1 RATE 750 mL/hr 2.0 mL Infuse 

Phase Function Rate Volume Direction 

2 RATE 750 mL/hr 0.25 mL Withdraw 

Phase Function 

3 LP:ST 

Phase Function 

4 LP:ST 

Phase Function 

5 PS:90 

Phase Function 

6 LP:03 

Phase Function 

7 BEEP 

Phase Function 

8 PS:30 

Phase Function Rate Volume Direction 

9 RATE 750 mL/hr 2.25 mL Infuse 

Phase Function Rate Volume Direction 

10 RATE 750 mL/hr 0.25 mL Withdraw 

Phase Function 

11 LP:EN 
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9.4.3 Example 3: Ramping the Flow Rate 

ml/hr R

ate

Time

0

150

200

250

Phases

2 - 4

Phases

5 - 8

Phases

9-11

Note: Graph is representative only.

Pumping rate increments and decrements in steps.

Continuously ramp up and down the pumping rate. Starting at 200 mL/hr, the pumping rate will increment to 

250 mL/hr in 1.0 mL/hr steps after every 0.1 mL has been dispensed. Then the pumping rate will decrement to 

150 mL/hr in 1.0 mL/hr steps after every 0.1 mL has been dispensed. Finally, the pumping rate is incremented 

back to 200 mL/hr in 1.0 mL/hr steps after every 0.1 mL has been dispensed, then the process is repeated. 

Phase Function Rate Volume Direction 

1 RATE 200 mL/hr 0.1 mL Infuse 

Phase Function 

2 LP:ST 

Phase Function Rate Volume Direction 

3 INCR 1.0 0.1 mL Infuse 

Phase Function 

4 LP:50 

Phase Function 

5 LP:ST 

Phase Function Rate Volume Direction 

6 DECR 1.0 0.1 mL Infuse 

Phase Function 

7 LP:99 

Phase Function Rate Volume Direction 

8 DECR 1.0 0.1 mL Infuse 

Phase Function 

9 LP:ST 

Phase Function Rate Volume Direction 

10 INCR 1.0 0.1 mL Infuse 

Phase Function 

11 LP:50 

Phase Function 

12 JP:02 
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9.4.4 Example 4: Complex Dispenses with External Synchronization 

0

0

750 

With

dra

w (ml/hr) Infu

s

e

Start

Trigger

 

Start

Trigger

:60

 

:60



:60



Start

Trigger

Start over

Syringe

Refill

A more complex dispensing example, this Program contains different pumping requirements, including 

dispenses with multiple pumping rates. The first set of 3 dispenses drops down to a lower pumping rate during 

the dispense. When each dispense is completed, the buzzer beeps to alert the operator, then the pump waits for 

a start trigger before starting the next dispense. 

The next set of 3 dispenses have a fixed time interval of 60 seconds between dispenses. After the last set of 

dispenses, the syringe is refilled by the amount infused, 17.25 mL. Then the buzzer beeps, to alert the operator 

to the start of the first set of dispenses. The process is then repeated. 

Phase Function Rate Volume Direction 

1 RATE 750.0 mL/hr 0.5 mL Infuse 

Phase Function Rate Volume Direction 

2 RATE 300.0 mL/hr 1.5 mL Infuse 

Phase Function 

3 BEEP 

Phase Function 

4 PS:00 

Phase Function 

5 LP:02 

Phase Function Rate Volume Direction 

6 RATE 750.0 mL/hr 0.5 mL Infuse 

Phase Function Rate Volume Direction 

7 RATE 300.0 mL/hr 1.5 mL Infuse 

Phase Function 

8 BEEP 

Phase Function 

9 LP:ST 

Phase Function 

10 PS:60 

Phase Function Rate Volume Direction 

11 RATE 500.0 mL/hr 3.75 mL Infuse 

Phase Function 

12 LP:03 
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Phase Function Rate Volume Direction 

13 RATE 900.0 mL/hr 17.25 mL Withdraw 

 

Phase Function 

14 BEEP 

Phase Function 

15 PS:00 

Phase Function 

16 LP:EN 

9.4.5 Example 5: Control from a High-Low Pressure Sensor

10

25

ml/hr

Pumping

Rate

Program

Output Pin

Event Input

Pin

Pressure high sensor

Pressure low sensor

Pressure trigger points

This example demonstrates a Pumping Program whose control depends on an external sensor. Assuming a 

pressure sensor that is configured to detect a high pressure point and a low pressure point, the Pumping 

Program individually selects whether it will react to the high or low pressure point. 

The “Program Output” pin on the TTL I/O connector (pin 5) is used to select the high or low pressure point. 

When low, the low pressure point is selected (PH:01), and when high, the high pressure point is selected 

(PH:05). The Program begins by infusing continuously at 10.0 mL/hr (PH:02), while a background trap is set 

for the low pressure point (PH:03). To create a delay when the pressure sensor is switched from high pressure 

to low pressure when the “Program Output” pin is set, a small volume is pumped (PH:02, 06) before the 

background traps are set. 

When the low pressure trap is triggered, the pump sets the high pressure trap (PH:07) and begins to increment 

the flow rate. The flow rate is incremented in 1.0 mL/hr steps with every 0.25 mL dispensed (PH:08-10). If 

the high pressure trap hasn’t as yet been triggered, the flow rate will max out at 25.0 mL/hr while waiting for 

the high pressure trap (PH:11). When the high pressure point is reached, the pump immediately will drop 

down to 10.0 mL/hr (PH:02), and once again wait for the low pressure point. 

Phase Function 

1 OUT.0 

Phase Function Rate Volume Direction 

2 RATE 10.0 mL/hr 0.005 Infuse 

Phase Function 

3 EV:05 

Phase Function Rate Volume Direction 

4 RATE 10.0 mL/hr 0.0 mL (off) Infuse 

Phase Function 

5 OUT.1 

Phase Function Rate Volume Direction 

6 RATE 10.0 mL/hr 0.005 Infuse 
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Phase Function 

7 EV:01 

Phase Function 

8 LP:ST 

Phase Function Rate Volume Direction 

9 INCR 1.0 0.25 mL Infuse 

Phase Function 

10 LP:14 

Phase Function Rate Volume Direction 

11 RATE 25.0 mL/hr 0.0 mL (off) Infuse 

9.4.6 Example 6: Automated Dispensing with Synchronization 

'Power Failure

Mode' Pumping

Program Restart

at Power Up

Syringe

Refill

Event Trigger

from

Syringe Filled Sensor:

Jump to Phase 3

5:00:00 5:00:00 5:00:00 5:00:00 5:00:00

    

Restart Pumping Program

The following is an automated dispensing Program for a NE-1000 syringe pump equipped with a ‘Syringe 

Filled Sensor’ attached to the TTL I/O connector, and a valve system to refill the syringe from a reservoir. It is 

also assumed that the ‘Power Failure’ mode is enabled. 

After a power fail restart, the pusher block is in an unknown position, making it impossible for an automated 

dispensing system to regain synchronization. With the Syringe Filled Sensor, the following Pumping Program 

will automatically synchronize the dispensing system, and then continue with the normal dispense. 

The first 2 Phases set an event trap for the Syringe Filled Sensor and refills the syringe until the sensor is 

triggered. When the sensor triggers the event, the pump’s pusher block will be synchronized with the Pumping 

Program. It is assumed that the sensor is positioned to refill the syringe with 60 mL. A withdraw volume of 

61 mL is set as a safety feature. 

After the syringe is refilled, one 5 mL dispense is made every 5 hours. After 12 dispenses, the syringe is 

refilled using the sensor again. 

Phase Function 

1 EV:03 

Phase Function Rate Volume Direction 

2 RATE 1000.0 mL/hr 61 mL Withdraw 

Phase Function 

3 LP:ST 

Phase Function Rate Volume Direction 

4 RATE 200.0 mL/hr 5.0 mL Infuse 

Phase Function 

5 LP:ST 

Phase Function 

6 LP:ST 
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Phase Function 

7 PS:60 

Phase Function 

8 LP:60 

Phase Function 

9 LP:05 

Phase Function 

10 LP:12 

Phase Function 

11 JP:01 

9.4.7 Example 7: Sub-Programs 

This example shows some of the flexibilities provided by the Program Selection functions. The Pumping

Program starts by refilling the syringe with 50 mL at a fast pumping rate (Phase 1), then the Pumping Program 

pauses for user sub-program selection (Phase 3). Then performs 5 dispenses of 10 mL at the selected rates, 

then refills the syringe again and pauses for the next user sub-program selection. 

The user is given the option of choosing one of three defined sub-programs. 

1: Dispense 10 mL at 100 mL/hr (Phase 4) 

2: Dispense 10 mL at 500 mL/hr (Phase 7) 

3: Dispense 10 mL at 750 mL/hr (Phase 10) 

After selecting the sub-program and pressing 'Start', the Pumping program continues execution at the selected 

sub-program. After the 10 mL dispense, each sub-program jumps or continues with the loop counter function 

(Phase 12). The first 4 loops continue Program Execution with the next user sub-program selection. After the 

5th loop, the program continues with Phase 13, which jumps back to the syringe refill function and starts the 

whole program over. 

Phase Function Rate Volume Direction 

1 RATE 1500.0 mL/hr 50 mL Withdraw 

Phase Function 

2 LP:ST 

Phase Function 

3 PR:IN 

Phase Function 

4 PR:01 

Phase Function Rate Volume Direction 

5 RATE 100.0 mL/hr 10 mL Infuse 

Phase Function 

6 JP:12 

Phase Function 

7 PR:02 

Phase Function Rate Volume Direction 

8 RATE 500.0 mL/hr 10 mL Infuse 

Phase Function 

9 JP:12 

Phase Function 

10 PR:03 
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Phase Function Rate Volume Direction 

11 RATE 750.0 mL/hr 10 mL Infuse 

Phase Function 

12 LP:05 

Phase Function 

13 JP:01 

9.4.8 Example 8: Dispensing with Complex Synchronization

:01



Repeat if

Program Input

low

:10 :10

 

Restart on Event Trigger

or 10 seconds

Event Trigger With

dra

w Infu

s

e

TTL Program Ouput

TTL High TTL Low

Event Trigger

Infuse until

Event Trigger

This example demonstrates a complex interaction with external equipment, such as synchronizing with another 

syringe pump. The Program includes a variety of interactions with external equipment, which demonstrates 

the various control possibilities of the NE-1000. 

The Pumping Program begins by canceling any previous event traps (PH:01) and raising the ‘Program Output’ 

TTL line (PH:02). After 5.0 mL has been dispensed at 800 mL/hr (PH:03), the ‘Program Output’ TTL line is 

lowered (PH:04), sending a synchronization signal to another device. 

The pump then continues to pump at 800 mL/hr (PH:06) until a synchronization signal is received at the

‘Event Trigger’ TTL input, causing the Program to jump to Phase 7 (PH:05). 

The pump then withdraws 0.25 mL (PH:07), pauses for 1 second (PH:08), then repeats this process if the

Program Input TTL line is low (PH:09), otherwise it continues with the next Phase. 

Next, the pump pauses for 10 seconds (PH:10). Then it pauses again for the lesser of another 10 seconds 

(PH:12) or until an Event Trigger occurs (PH:11). The Program then restarts (PH:13). 

Phase Function 

1 ET:RS 

Phase Function 

2 OUT.1 

Phase Function Rate Volume Direction 

3 RATE 800.0 mL/hr 5.0 mL Infuse 

Phase Function 

4 OUT.0 

Phase Function 

5 ET:07 
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Phase Function Rate Volume Direction 

6 RATE 800.0 mL/hr 0.0 mL (OFF) Infuse 

Phase Function Rate Volume Direction 

7 RATE 1000.0 mL/hr 0.25 mL Withdraw 

Phase Function 

8 PS:01 

Phase Function 

9 IF:07 

Phase Function 

10 PS:10 

Phase Function 

11 ET:01 

Phase Function 

12 PS:10 

Phase Function 

13 JP:01 

9.4.9 Example 9: Automatic Refill 

While a foot switch is held, dispense continuously, starting with a 1.5 mL bolus. When the foot switch is 

released, the syringe will refill to the volume that was dispensed. 

In the pump’s general setup, set the TTL Trigger to “Foot Switch Hold” mode (TR:FH). 

Phase Function 

1 TR:ET Redirect trigger input to the Event Trap 

Phase Function 

2 ET:05 Set Trigger Event Trap to start syringe refill 

Phase Function Rate Volume Direction 

3 RATE 1000.0 mL/hr 1.5 mL Infuse Begin bolus dispense 

Phase Function Rate Volume Direction 

4 RATE 500.0 mL/hr 0.0 mL (OFF) Infuse Then infuse continuously 

Phase Function Rate 

5 FILL 1000.0 mL/hr Refill syringe when foot switch is released 

Phase Function 

6 STOP Then stop the pump 

10. RS-232 Communications 

The NE-1000 Syringe Pump can communicate with any computer or device with an RS-232 

communications port. The following assumes that the default Address Communications Mode is 

set. 

10.1 Connection and Networking 

On the rear of the pump are 2 square RJ-11 (“phone jack” style) sockets. 

Connect the RS-232 cable into the socket labeled “To Computer”. Connect the other end to the serial port on 

the computer, or other control device. Turn power off to the pump and the computer before connecting cables. 

If the pump is part of a pump network, connect a pump network cable between the socket labeled “To 

Network”, on the first pump, and the socket labeled “To Computer” on the next pump in the network. Repeat 

for each pump in the network, connecting the “To Network” socket of one pump to the “To Computer” socket 
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on the next pump in the network. Up to 100 pumps can be networked together with a computer. See section 

11, Logic Interface: TTL Input and Output, for a diagram of the rear of the pump. When communicating with 

a pump in a multi-pump network, each preceding pump in the network must be powered on. 

Each pump in the network needs a unique network address to identify the pump to the computer. Network

addresses are from 00 to 99. If the network consists of only 1 pump, set the pump’s address to 0. Also, each 

pump needs to be set to the same baud rate as the computer. Use the ‘Setup’ function on the keypad to set the 

network address and the baud rate. See section 6.12, ‘Setup’ . The '*ADR' command can also be used to set 

the network address. 

The supported baud rates are 300, 1200, 2400, 9600, and 19200. The trade-off on baud rates is 

communications speed versus noise immunity. For most environments, 19200 would be acceptable. But in

environments that are electrically noisy and/or over long cables, the communications signal may degrade or be 

disrupted, causing communications errors. In these situations, a lower baud rate may improve the reliability of 

the communications. 

10.2 RS-232 Protocol: 

When the pump is used in a multi-pump network configuration, precede each command with a pump address. 

Pumps will ignore all commands that do not have their defined network address. If the network address is not 

specified in the command, the address will default to 0. 

After a command is sent to the pump, the pump will not accept any further communications until the current 

command has been processed. Completion of the command processing is indicated when the first byte of the 

response packet is transmitted. While the user is changing data or configurations from the keypad, command 

processing is delayed. 

A triangle appears in the upper left corner of the LCD display after the pump has received valid 

communications. This triangle remains on the display until the pump is powered off or until ‘Setup 

Configuration’ is entered. 

Communications to and from the pump uses the following data frame: 

Supported RS-232 Data Frames 

Baud rates: 19200, 9600, 2400, 1200, or 300 

Frame: 10 bit data frame (8N1): 

 Start bit: 1 

 Data bits: 8 

 Stop bits: 1 

 Parity: None 

Every command received by a pump in the network is acknowledged by the pump with a response packet that 

includes a status character indicating the current operational state of the pump. 

Two packet protocols are supported, Basic and Safe. The enabled communications protocol is stored in nonvolatile memory, and therefore will be in effect at power up. Safe Mode provides a safer communications 

protocol than Basic Mode. Safe Mode detects corrupted data and loss of communication, as well as 

automatically transmitting status packets when an alarm occurs. 

Considering that the 19200 baud rate communicates at 52 μs per bit, a small glitch on the RS-232 cable, 

flipping a single bit, can convert a transmitted infusion rate of 100 mL/hr into 900 mL/hr, the need for the Safe 

Mode in a production environment is evident. However, Basic Mode is excellent for simplifying early 

development of a control program. 

While in the Basic Mode, the pump will accept either communications protocol, Basic or Safe, although the 

response packet will be in the current communications mode. This allows a computer’s communication’s 

driver to be designed with just one mode. A Safe Mode communications driver can send a ‘SAF’ command to 

the pump in the Safe Mode protocol while the pump is in Basic Mode. The response to the ‘SAF’ command, 

enabling Safe Mode, will then be in the Safe Mode protocol. 

10.2.1 RS-232 General Syntax Legend 

The following syntax expansion legend is common to all syntax expansions: 

Except where indicated, all command and response characters are ASCII data. 
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<float> => <f> [ <float> ] Floating point number. Maximum of 4 digits plus 1 

decimal point. Maximum of 3 digits to the right of the 

decimal point. 

<volume units> => UL μL (microliters) 

ML mL (milliliters) 

<TTL level> => 1 TTL high level 

0 TTL low level 

<on-off> => 1 On, enabled 

0 Off, disabled 

<phase data> => <n> [<n>] Program Phase number. Valid values: 1 to 41 

<count data> => <n> [<n>] Valid values: 1 to 99 

<number data> => <n> [<n>] Valid values: 0 to 99 

<text> => "any printable character" [<text>] 

<f> => { <n> | . } Floating point digits 

<n> => { 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 } Digits 

<byte> => “one byte of any data” 

( ) One byte of data expressed as (0xhh), where ‘hh’ is the 

data in hexadecimal. 

=> Is defined by. Syntax expands to next level of expansion. 

< > Non-terminal syntax expansion 

 [ ] Optional syntax 

{ } Required syntax 

| Or. Choose one of the syntax options. 

λ None. Syntax expands to nothing (lambda production). 

" " Description of syntax expansion 

10.2.2 RS-232 Protocol: Basic Mode 

Command syntax (to pump): 

 <basic command protocol> => <command data> <CR> 

Response syntax (from pump): 

 <basic response protocol> => <STX> <response data> <ETX> 

In the “Basic” communications mode, a master-slave protocol is used, whereby the pump will only transmit in 

response to a received command. 

When the pump receives the <basic command protocol>, <command data> will automatically be stripped of 

all space and control characters, and all text will be converted to upper case. This simplifies communications 

with the pump when commands are being manually typed in from a generic terminal emulator. 

To return the pump to Basic mode when in the Safe mode, send the following packet to the pump: 

 (0x2) ( 0x8) SAF0 (0x55) (0x43) (0x3) 

10.2.3 RS-232 Protocol: Safe Mode 

Command syntax (to pump): 

 <safe command protocol> => <STX> <length> <command data> <CRC 16> <ETX> 

Response syntax (from pump): 

 <safe response protocol> => <STX> <length> <response data> <CRC 16> <ETX> 

Safe mode uses a more structured protocol including detection of corrupted communications, communications 

time outs, and auto-alarm responses. Safe mode is enabled using the ‘SAF’ command whose parameter setting 

is stored in the non-volatile memory. 
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Safe mode uses a modified master-slave protocol, whereby the pump transmits in response to a received 

command. But, the pump also automatically transmits a status packet when an alarm condition occurs. 

Corrupted communications is detected using the 16 bit CCITT CRC algorithm computed over <transmitted 

data>. Packets transmitted and received include the CRC within the packets. 

The parameter sent with the “SAF” command is the communications time out. This time out, in seconds, is the 

time between the reception by the pump of consecutive valid communications packets. Each time a valid

communications packet is received, the time out is reset. If the time out elapses, a pump alarm will occur, 

stopping the pump and the Pumping Program. The pump will display , and the buzzer will sound, 

if alarms are enabled, alerting the user. The communications time out timer will not restart until the next 

reception of a valid packet. 

In addition, there is a 0.5 second packet inter-byte time out. While receiving a communications packet, and 

before its complete reception, if a delay of 0.5 seconds occurs between bytes, the incomplete packet will be 

discarded. 

With the Auto-Alarm feature, whenever a pump alarm occurs, such as a pump stall, a response packet with the 

alarm status information will automatically be transmitted. 

Until the Safe Mode is disabled, each time power is applied to the pump, the pump defaults to the Safe mode 

of communications, but the communications time out timer will not be enabled until the first reception of a 

valid packet. 

Although the communications time out timer is not enabled, the Auto-Alarm feature will be enabled. 

Therefore, the pump will be in an Auto-Alarm only communications mode. 

When power is applied to the pump, or if the system should reset, a system reset alarm occurs. The AutoAlarm feature, therefore, alerts the host computer that a pump reset has occurred. 

Also, when the user changes the baud rate, the communications time out timer is disabled until the next valid 

communications packet. 

10.2.4 RS-232 Protocol: Basic and Safe Mode Common Syntax

<transmitted data> => { <command data> | <response data> } 

<command data> => [<address> | * ] [<command>] To pump 

<response data> => <address> <status> [ <data> ] From pump 

<status> => { <prompt> | <alarm> } Operational state of pump 

<prompt> => 

I Infusing 

W Withdrawing 

S Pumping Program Stopped 

P Pumping Program Paused 

T Timed Pause Phase 

U Operational trigger wait (user wait) 

X Purging 

<alarm> => A ? <alarm type> Alarm 

<alarm type> => 

R Pump was reset (power was interrupted) 

S Pump motor stalled 

T Safe mode communications time out 

E Pumping Program error 

O Pumping Program Phase is out of range 

<address> => <n> [ <n> ] Pump network address, 0 to 99 

* System command (overrides network address) 

<data> => <text> Response to command 

<CR> => (0x0D) Carriage return 

<STX> => (0x02) Start of packet transmission indicator 

<ETX> => (0x03) End of packet transmission indicator 

<CRC 16> => <byte> <byte> 16 bit CCITT CRC of <transmitted data> (high byte, low byte) 

<length> => <byte> Number of bytes remaining in packet, including this byte 
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10.2.5 Network Command Burst 

The Network Command Burst feature is only applicable when communicating to a network of pumps. 

This special feature allows commands to be sent to a network of pumps simultaneously. For example, 

changing the pumping rates simultaneously on a network of pumps. 

Note: Since this special feature violates the general communications protocol of one command-one response, 

all of the pumps will be responding simultaneously, and therefore the communications response to a Network 

Command Burst will be gibberish and should be ignored. 

Command Format 

Command Burst => <n> <command> * 

Network Command Burst => < Command Burst > [Network Command Burst] 

Where <n> indicates the address of the pump that is to execute <command>. Maximum address is 9. 

n => {0 ... 9} 

Example: Simultaneously change the pumping rates of 3 pumps on a pump network as follows: 

Pump 0: 100 mL/hr 

Pump 1: 250 mL/hr 

Pump 2: 375 mL/hr 

Assuming that the current pumping rate units of all 3 pumps are currently mL/hr, send the following 

command, followed by a carriage return <CR>, (spaces are optional): 

 0 rat 100 * 1 rat 250 * 2 rat 375 * 

10.3 Command Errors and Alarms 

If a command received by the pump is not recognized or the data is invalid, an error message will be in the 

<data> field of the response packet following the <prompt> field. The following are the error responses: 

<command error> => ? <error> 

<error> => 

λ Command is not recognized (‘?’ only) 

NA Command is not currently applicable 

OOR Command data is out of range 

COM Invalid communications packet received 

IGN Command ignored due to a simultaneous new Phase start 

When an alarm occurs, the alarm must be acknowledged before any data is changed or the pump is started. 

Alarms are acknowledged by the user clearing the alarm message on the keypad, or the alarm status being sent 

in response to any valid RS-232 command. An alarm message sent automatically in the Safe Mode will not 

clear the alarm condition. This is to verify that the alarm message was sent to a receptive host, such as after a 

power failure when both the computer and the pump were reset. In this case, the pump will most likely send 

its reset alarm message before the computer has finished booting. 

10.4 RS-232 Command Set 

All data changed from RS-232 is stored in the non-volatile memory, except for changes to the pumping rate 

while pumping. All “Program Phase Data” refers to the currently selected Program Phase. Use the Phase 

select command (‘PHN’) to query or select the current Phase. A Phase consists of the pumping rate, ‘Volume 

to be Dispensed’, and the pumping direction. 

A packet without a command is interpreted as a status query. The addressed pump responds with a status only 

response packet. 

Except where noted, a command without any parameters is a query command. The response packet data will 

include the requested data. In general, the query response data will be in the same format as the parameters for 

setting the command. For example, the query diameter command ‘DIA’ will respond with ‘<float>‘ as the

response ‘<data>‘. 

Otherwise, the command is a set command. If the data was set, a status only response packet will be sent. If 

the data was not set, the response packet will include an error (<command error>) message indicating why the 

data was not set. 
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All commands are upper case. 

<command> => 

DIAMETER 

DIA [ <float> ] 

Set/query inside diameter of syringe. Set is only valid when the Pumping Program is not operating. 

Setting the syringe diameter also sets the units for “Volume to be Dispensed” and “Volume 

Dispensed”. 

10.4.1 Program Function Commands 

The following commands are relevant to the currently select Program Phase. Note: During a Pumping 

Program’s operation, the currently selected Phase can change automatically. 

PHASE NUMBER 

PHN [ <phase data> ] 

Set/query currently selected Program Phase: 

Set: 

Currently selected Phase is set to <phase data>. Previous Phase is stored in non-volatile memory and 

the requested Phase is recalled from the non-volatile memory. Set is only valid if the Pumping 

Program is not operating. 

Query response: <phase data> Currently selected Phase. 

PUMPING PROGRAM FUNCTION 

FUN [ <phase function> ] 

Set/query the Pumping Program Phase’s function. 

This command is relevant to the currently selected Phase. Set is only valid if the Pumping Program is

not operating 

For a more detailed description of Program commands, see sec. 9.3, Program Function Descriptions. 

 <phase function> => 

Rate Data Functions 

When a Phase’s function is set to a “Rate Data Function”, use the ‘RAT’, ‘VOL’, and ‘DIR’ 

commands to setup the pumping parameters. 

RAT Pumping rate. ‘RATE’ 

FIL Fill syringe to dispensed volume. ‘FILL’ 

INC Increment rate. ‘INCR’ 

DEC Decrement rate. ‘DECR’ 

Non-Rate Control Functions 

STP Stop pump. ‘STOP’ 

PAS <number data> Pauses pumping for ‘nn’ seconds. ‘PS:nn’ 

PAS <n.n> Pauses pumping for 'n.n' seconds. 'PS:n.n' 

PRI Sub-Program Selection Input. 'Pr:In' 

PRL <number data> Sub-Program Start Label definition. 'Pr:nn' 

LPS Loop starting Phase. ‘LP:ST’ 

LPE Loop end Phase. ‘LP:EN’ 

LOP <count data> Loop to previous loop start ‘nn’ times. ‘LP:nn’ 

JMP <phase data> Jump to Program Phase. ‘JP:nn’ 

IF <phase data> If Program input TTL pin low, jump to Phase. ‘IF:nn’ 

EVN <phase data> Set event trigger trap. ‘EV:nn’ 

EVS <phase data> Set event square wave trigger trap. 'ES:nn' 

EVR Event trigger reset. ‘EV:RS’ 

CLD Clear total dispense volume. ‘CLR.D’ 

TRG <nn> Override Operational Trigger Default Mode, set to <nn>, ‘tr:aa’ 

BEP Sound short beep. ‘BEEP’ 

OUT <TTL level> Set programmable output pin. ‘OUT.n’ 
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PUMPING RATE

RAT [ C | I ] [ <float> [ <rate units> ] ] 

 Set/query pumping rate. 

<rate units> => UM = μL/min 

MM = mL/min 

UH = μL/hr 

MH = mL/hr 

Applicable only with “Rate Data Functions”. 

When setting the pumping rate, if the current Phase’s function is not ‘RATE’, then <rate units> is not

applicable. 

While pumping, the pumping rate can only be set if the current Phase function is ‘RATE’ and the next 

Program Phase’s function to be executed is not ‘INCR’ or ‘DECR’. Also, while pumping, <rate 

units> cannot be set. 

The new pumping rate will only be stored in non-volatile memory if the Pumping Program is not 

operating. 

When the pumping rate is queried while pumping, the response will be the current pumping rate and 

units. Otherwise, the response will be the rate setting and units, if applicable. With the ‘INCR’ and 

‘DECR’ functions, these two responses are not the same. 

RAT C <float> [ <rate units> ] 

Allows the Pumping Program to continue after the pumping rate is changed. The RAT C command 

will not clear a Paused Pumping state after the rate is changed when the Pumping Program is paused. 

Normally, the Pumping Program would re-start from Phase 1 after the rate is changed while paused. 

RAT I <float> [ <rate units> ] 

Changes the pumping rate only if the pump is infusing. If the pumping direction is set to withdraw, 

the rate change will be ignored. 

VOLUME TO BE DISPENSED AND SET VOLUME UNITS

VOL [ <float> | <volume units>] 

Set/query volume to be dispensed: <float> 

Applicable only with “Rate Data Functions”. Can only be set when the Pumping Program is not 

operating. The volume units are set according to the current syringe diameter setting. Do not send 

the volume units when setting the volume. 

Example: VOL 12.45 Sets the current phase “Volume to be Dispensed” to 12.45. 

Set volume units: <volume units> 

Overrides the default volume units set when the syringe diameter is set. 

Example: VOL UL Sets all volume units to μL. 

Query response: 

<float> <volume units> 

PUMPING DIRECTION

DIR [ INF | WDR | REV | STK ] 

Set/query pumping direction 

INF = Infuse 

WDR = Withdraw 

REV = Reverse pumping direction 

STK = “Sticky Direction” (See “Sticky Direction”, sec: .6.8.1) 

Applicable with all Program Phase functions. Cannot be set when the Pumping Program is operating 

and the “Volume to be Dispensed” is non-zero.

The pumping direction cannot be changed if an alarm condition exists. 
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Query response: { INF | WDR | STK} 

While pumping, when set to “Sticky Direction”, query will respond with the current pumping 

direction ( INF or WDR). 

10.4.2 Pump Operational Commands 

START PUMPING PROGRAM 

RUN [ <phase data> ] 

 [E [<phase data> ] ] 

Starts the Pumping Program operation. 

If the Pumping Program was paused, then the Pumping Program resumes at the point where it was 

stopped. Otherwise, the Pumping Program starts from Phase 1. 

Sub-Programs: If a Phase number is specified (<phase data>), then the Pumping Program will start at 

the specified Phase number. By programming sub-programs in different sections of the Pumping 

Program memory, this command can be used to individually execute different sub-programs. 

The pump cannot be started if an alarm condition exists. 

E [ <phase data> ] 

Trigger a Pumping Program Event while the Pumping Program is active. 

Triggers a pre-defined event defined with the Pumping Program’s Event function, causing an 

immediate jump to the Pumping Program Phase defined by the event function. 

If <phase data> is specified, the program will immediately jump to the Pumping Program Phase 

specified by <phase data>, and cancel any other event set by the Pumping Program. 

PURGE PUMP 

PUR Starts purge. Pump infuses or withdraws at the top speed, depending on the pumping direction. 

 STP command or ‘Start/Stop’ key will stop the pump. 

STOP PUMPING PROGRAM 

STP If the Pumping Program is operating, the pump will be stopped and the Pumping Program will be 

paused. 

If the Pumping Program is paused, the stop command will cancel the pause and reset the Pumping 

Program to Phase 1. 

VOLUME DISPENSED 

DIS Queries volume dispensed only. Set not applicable. 

Response: 

I <float> W <float> <volume units> 

Where: “I <float>“ refers to the infusion volume dispensed, and “W <float>” refers to the withdrawn 

volume. 

CLEAR VOLUME DISPENSED 

CLD { INF | WDR } 

Sets the Infused or withdrawn volume dispensed to 0. Command is only valid while the Pumping 

Program is not operating. Query is not applicable.

INF = Infusion volume 

WDR = Withdrawn volume 

Query is not applicable. 

10.4.3 Configuration and Setup Commands 

New settings for any of the following commands will be stored in the non-volatile memory. 

LOW MOTOR NOISE 

LN [ <on-off> ] 

Set/query low motor noise mode. Increases motor stepping resolution. 
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ALARM SETUP 

AL [ <on-off> ] 

Set/query alarm setup mode. Set alarm enables or disables alarm buzzer mode. 

POWER FAIL SETUP 

PF [ <on-off> ] 

Set/query Power Failure mode. Set Power Failure enables or disables Power Failure mode. 

TTL I/O OPERATIONAL TRIGGER DEFAULT SETUP 

TRG [ <trigger setup> ] 

Set/Query TTL I/O Operational Trigger (Pin 2) default input configuration. 

TTL I/O Operational Trigger is set to <trigger setup>. 

<trigger setup> => FT = Foot switch trigger (falling edge start/stop) 

 FH = Foot switch hold (falling edge start, rising edge start) 

 F2 = Foot switch reverse (rising edge start/stop) 

 LE = Level trigger (rising edge start, falling edge stop) 

 ST = Start only trigger (falling edge start) 

 T2 = Start only trigger reversed (rising edge start) 

 SP = Stop only trigger (falling edge stop) 

 P2 = Stop only trigger reversed (rising edge stop) 

 RL = Start on low level 

 RH = Start on high level 

 SL = Stop on low level 

 SH = Stop on high level 

 OF = Trigger off (disabled) 

TTL I/O DIRECTIONAL CONTROL INPUT SETUP

DIN [ 0 | 1 ] 

Set/query directional control input setup 

Settings => 0 = Falling edge: Infuse, Rising edge Withdraw 

 Same as "dr:rE" setting from the keypad. 

Use this setting with the CBL-TTL-1, reciprocating pump cable, to create a 2 pump 

continuous infusion system 

 1 = Falling edge: Withdraw, Rising edge Infuse 

Same as "dr:dU" setting from the keypad. 

Use this setting with the CBL-TTL-1, reciprocating pump cable, to create a 2 pump 

dual pumping system 

PUMP MOTOR OPERATING TTL OUTPUT CONFIGURATION 

ROM [ <on-off> ] 

 Set/query Pump Motor Operating TTL output configuration (TTL pin 7) 

Settings => 0 = Output is logic high only when the pump motor is operating (pumping). 

 1 = Output is logic high when the pump motor is operating (pumping) or when the 

Pumping Program is executing a pause timer. 

SET KEYPAD LOCKOUT 

LOC [P] [ <on-off> ] 

Set/query keypad lockout mode. Set keypad lockout disables changing any settings from the keypad 

unless the "Lockout Disable Key" is inserted. 

P [ <on-off> ] 

Set/Query Program Entry Mode Lockout. Set Program Entry Mode Lockout prevents inexperienced 

users from entering “Program Entry Mode” from the keypad. When enabled, only the Phase 1 ‘Rate’, 
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‘Volume’ and Pumping Direction can be changed. Cannot be enabled when the Pumping Program is 

currently programmed with a multiple Phase Program.

SET KEYPAD AND NOTIFICATION BEEP 

BP [ <on-off> ] 

Set/query keypad and notification beep mode. Set beep enables or disables beep mode. 

10.4.4 General Control and Status Commands 

TTL I/O OUTPUT SETTING 

OUT <n> <TTL level> 

 Sets TTL level on user definable output pin on the ‘TTL I/O’ connector. 

 <n> Indicates pin number on ‘TTL I/O’ connector 

 Valid value: 5 (Program Output pin) 

Query is not applicable. 

TTL INPUT QUERY 

IN <n> 

 Queries TTL level of pin on ‘TTL I/O’ connector. Set is not applicable. 

 <n> Indicates pin number on ‘TTL I/O’ connector 

 Valid values: 2, 3, 4, and 6. 

 Query response: <TTL level> 

BUZZER 

BUZ [ 0 | { 1 [ < n > ] } ] 

 Sets / queries buzzer 

 Set: 0 = Turn buzzer off; 

1 = Turn buzzer on 

if <n> specified 

 If <n> = 0, buzzer beeps continuously, 

 otherwise buzzer beeps <n> times 

if <n> not specified, buzzer sounds continuously 

Query response: { 0 | 1 } 

0 = Buzzer off 

1 = Buzzer is on continuously or beeping. 

10.4.5 System Commands 

SET PUMP NETWORK ADDRESS AND BAUD RATE

* ADR [ <address> [ B { 19200 | 9600 | 2400 | 1200 | 300 } ] ] 

 [DUAL | RECP | ALTR]

Set/query pump network address 

<address> => <n> [<n>] 

<address> Valid range: 0 to 99 

B { 19200 | 9600 | 2400 | 1200 | 300 } will change the baud rate as indicated. NOTE: The command 

response and all further communications will be at the specified baud rate. 

Special communications modes 

DUAL Sets the pump to Dual Pumping mode with a secondary pump. 

RECP Sets the pump to Reciprocating Pumping mode with a secondary pump. 

ALTR Sets Alternating pumping mode. 

 All special communications modes use 19,200 baud rate. 

This is a special system command that will be accepted by the pump regardless of its current address or mode. 

Once set, the pump will only respond to commands with the set address and at the specified baud rate. 
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Note: Once a special communications mode is set, the pump will only respond to commands that are preceded 

by the ‘*’ character. To exit special communication mode, reset the address: * ADR 0 

Example: *ADR Query current address setting 

*ADR 3 Set pump network address to 3. The pump will now only respond to 

commands with address 3 

*ADR 5 B 1200 Set the pump network address to 5 and the baud rate to 1200. The 

command response will be at 1200 baud 

ENABLE SAFE COMMUNICATIONS MODE 

SAF [ <time out> ] 

Set/query Safe communications mode setting. 

<time out> => <n> [ <n> [ <n> ] ] 

<time out> Valid range: 0 to 255. 

If <time out> = 0 then Basic communication mode is set, disabling Safe mode, 

If <time out> > 0 then Safe communications mode is enabled. After the reception of this command, 

valid communications must be received every <time out> seconds. 

FIRMWARE VERSION QUERY 

VER Response: NE<model>V <n> . <nnn> 

 where ‘<n>.<nnn>‘ is the current firmware version number. 

Set is not applicable. 

MASTER PROGRAM RESET 

* RESET 

Clears program memory and resets communication parameters to Basic mode and address 0. 

This is a special system command that will be accepted by the pump regardless of its current address. 

10.5 Getting Started With RS-232 

Before beginning to develop pump control software for a computer, first setup and experiment with the pump’s 

communication. After attaching the pump to the computer, run a terminal emulation Program on the 

computer. A generic terminal emulator, supplied as standard software with many computers, can be used to 

communicate with the pump in the Basic communications mode. 

New Era Pump Systems Inc. supplies a terminal emulator, for demonstration purposes only, which allows 

more complex control of the pump. Also, this terminal emulator contains a “Pump Programming Language”

(PPLTM), which allows Pumping Programs to be developed using symbolic text, modified, and stored in 

computer files, then uploaded to the pump. In addition, a Pumping Program generator spreadsheet is available 

to assist in developing a Pumping Program and to create the text file for uploading to a pump. 

With a generic terminal emulator, setup the terminal emulator with the same baud rate as the pump and with an 

8 bit data, no parity, and 1 stop bit (8N1) data frame. Set the communications port to the port that is attached 

to the pump. Also enable local echo (half-duplex) and turn flow control off. 

From the terminal emulator, you can interactively control the pump by typing in commands on your computer 

and seeing the pump’s responses on your screen. This will give you a feel for how the commands work in 

addition to allowing you to quickly develop the control sequence that will eventually be coded into the 

software being developed. 

The final benefit of using a terminal emulator is the elimination of several variables if the control software 

does not work properly. If the pump works correctly with the terminal emulator, then this verifies that the 

hardware is working properly and will work with any software. Any communications problems can then be

narrowed down to the control software. 

Note on USB: If an RS-232 port is not available on your PC, the pump may be operated through a USB to 

RS-232 converter cable (available as an accessory, part #CBL-USB232). This cable attaches to the standard 

RS-232 to PC cable (part #CBL-PC-PUMP-7). The PC will create a virtual RS-232 communications port that 

communicates through the USB to RS-232 converter cable. The terminal emulator can communicate through

this virtual port. 
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11. Logic Interface: TTL Input and Output 

New Era Pump Systems Inc. 

WWW.SYRINGEPUMP.COM 

(631) 249-1392 

Farmingdale, NY info@syringepump.com

12

Figure 2: Rear of Pump 

On the rear of the pump is a DB-9 connector, below the ‘TTL-I/O’ label, which is used for TTL I/O. The logic 

signals on this connector permit bi-directional control with external equipment. 

Control input TTL logic levels must be held steady for a minimum of 100 ms to be recognized. To minimize 

the possibility of false signals caused by glitches and ringing, which could be caused by the closure of 

mechanical switches, TTL control inputs are firmware filtered. With a sampling period of 50 ms, glitches of 

less than 100 ms are filtered out. 

Edge detection requires the detection of a change in TTL levels. With a minimum of 100 ms to detect a level, 

an edge requires a minimum of 200 ms to be detected. Since the next level change can be detected in 100 ms, 

creating another edge, the maximum edge to edge frequency is 10 Hz. 

Edge changes to the ‘Pumping Direction’ and ‘Operational Trigger’ inputs must occur at least 50 ms apart. 

Falling edge refers to a logic high to logic low transition. Rising edge refers to a logic low to a logic high 

transition. To guarantee recognition of logic levels, voltages on the input lines must be within the following 

ranges: 

TTL logic low (0): 0 to 1.5 V 

logic high (1): 3.5 to 5.25 V 

The Vcc and Ground pins, pins 1 and 9, are for logic reference only. To assure proper voltage levels, the 

Ground pin should always be connected to the signal ground of a sensing or controlling device that is attached 

to any other pin on the TTL I/O connector. The Vcc pin should not be used to source current. The TTL I/O 

pins are defined as follows: 

Pin 

9 

Pin 

1 
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Pin # Definition Type Function 

1 Vcc (5V) Reference Logic high reference. Power on indicator. 

2 Operational Trigger Input Configurable start/stop operational trigger input. 

[Ft] Foot Switch Falling edge: Start or stop trigger

[FH] Foot Switch Hold Falling edge: Start trigger 

 Rising edge: Stop trigger 

[F2] Foot Switch Reverse Rising edge: Start or stop trigger

[LE] Level Falling edge: Stop trigger 

 Rising edge: Start trigger 

[St] Start only Falling edge: Start trigger 

[t2] Start only Reverse Rising edge: Start trigger 

[SP] Stop only Falling edge: Stop trigger 

[P2] Stop only Reverse Rising edge: Stop trigger 

[rL] Start on low level Low level: Start trigger 

[rH] Start on high level High level: Start trigger 

[SL] Stop on low level Low level: Stop trigger 

[SH] Stop on high level High level: Stop trigger 

 [OF] Trigger off (disabled) 

[Et] Program function: Redirects stop trigger to Event trap 

 [bt] Program function: Redirects ‘Stop’ key to Event trap 

3 Pumping Direction Input Changes pumping direction according to setup 

 [dr:rE] [dr:dU] 

Falling edge: Infuse Withdraw 

Rising edge: Withdraw Infuse 

4 Event Trigger Input Event input or user definable input 

5 Program Output Output Program controlled output or user definable output 

6 Program Input Input Program conditional input read by the “IF” program function. 

Also user definable input. 

Also used by the keypad lockout function. 

7 Pump Motor Operating Output [RUN.0] High: Pumping; Low: Not pumping 

[RUN.1] High: Pumping or Pause timer 

 Low: Pumping Programmed stopped or paused 

8 Pumping Direction Output High: Infuse; Low: Withdraw 

9 Ground (0V) Reference Logic low reference 

11.1 TTL I/O Operational Controls 

While the user is changing settings or configuration from the keypad, external control by the ‘Pumping

Direction’ and ‘Operational Trigger’ inputs will be ignored. These controls will also be ignored if an alarm 

condition exists. 

Operational Trigger (Pin 2): The input signal on this pin controls the operation of the Pumping Program. Its 

functionality is user configurable. Use the ‘TR:nn’ Setup Default Configuration to configure this input pin 

(See Section 8.4, TTL I/O Operational Trigger Default Configuration). 

Each option defines when the Operational Trigger input is activated. When activated, the trigger emulates the 

‘Start/Stop’ key: 

Foot Switch: Operates like the ‘Start/Stop’ key, whereby each falling edge (contact to ground) either starts 

or stops/pauses the Pumping Program. 

Foot Switch Hold: Falling edge starts the Pumping Program and the rising edge stops the Pumping Program. 

With a foot switch, the Pumping Program will run while the foot switch was held down. 

Foot Switch Reversed: Operates like the ‘Start/Stop’ key, whereby each rising edge either starts or 

stops/pauses the Pumping Program. 

Level Control: Falling edge stops/pauses the Pumping Program, Rising edge starts the Pumping Program. 

This configuration can be used with a contact closure timer or in an automation setup, 

allowing logic level control over the operation of the pump. 

Start Only: Falling edge starts the Pumping Program. This configuration only allows the starting of the 

Pumping Program. This would be useful, for example, with a laboratory animal trained to 

press a lever. The animal can start the Pumping Program, but repeated presses would have 

no effect until the Pumping Program permits it. 

Start Only Reversed: Same as ‘Start Only’, but operates on the Rising edge to start the Pumping Program. 
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Stop Only: Falling edge Stops the Pumping Program. This configuration only allows the 

stopping/pausing of the Pumping Program. This would be useful, for example, with an end 

of travel limit switch. Also, this switch can be used as a power on homing switch. 

Stop Only Reversed: Same as ‘Stop Only’, but operates on the Rising edge to stop the Pumping Program. 

Run on Low Level: Starts the pump whenever the level is low 

Run on High Level: Starts the pump whenever the level is high 

Stop on Low Level: Stop the pump whenever the level is low 

Stop on High Level: Stop the pump whenever the level is high 

Trigger off: Trigger control is disabled

Event Trap Trigger: Redirects a Stop Operational Trigger to the Event Trap. 

Button Event Trigger: Redirects ‘Stop’ key to the Event Trap. 

Pump Motor Operating (Pin 7): This output provides an external signal indicating when the pump motor is 

operating. This pin is configured with the n setup command, or the "ROM" remote command. 

When set to 0, the output is only at logic high when the motor is operating (pumping). When set to 1, the 

output is logic high when the motor is operating or when the Pumping program is executing a pause timer. 

Otherwise, the output is a logic low. 

Pumping Direction Controls (Input: Pin 3; Output: Pin 8): Allows bi-directional control of the pumping 

direction. The input pin, when activated, emulates the pumping direction key, changing the pumping direction. 

This function, therefore, is only applicable where the pumping direction key would be applicable. The

function of the input pin is configured with the aa setup command, or the "DIN" remote command. 

When the mode is set to reciprocating pumps ("rE" setup command), then if the current pumping direction is 

withdraw, a falling edge sets the direction to infuse. If the current pumping direction is infuse, a rising edge 

sets the direction to withdraw. Otherwise, this input pin has no effect. 

When the mode is set to dual pumps ("dU" setup command), then if the current pumping direction is withdraw, 

a rising edge sets the direction to infuse. If the current pumping direction is infuse, a falling edge sets the 

direction to withdraw. Otherwise, this input pin has no effect. 

Dual and reciprocating pumping systems are created using 2 pumps attached with the accessory cable CBLTTL-1. 

The output pin provides an output signal to external devices indicating the direction of pumping. A logic low 

indicates withdraw, and a logic high indicates infuse. For example, this pin can be used to control an external 

valve, allowing the syringe to refill from a reservoir. 

11.2 TTL I/O Control from the Pumping Program 

Various Pumping Program functions can define how the pump reacts to levels on the TTL I/O connector or set 

output levels. These are summarized in the following table: 

Pumping Program 

Function 

TTL I/O Control Pin Pin 

# 

Action 

OUT.n Program Output 5 Set logic level output to ‘n’ 

EV:nn Event Trigger 4 Falling edge triggers a jump to Phase ‘nn’ 

ES:nn Event Square wave Trigger 4 Rising or falling edge triggers a jump to Phase 'nn' 

IF:nn Program Input 6 Low level causes a jump to Phase ‘nn’ 

PS:00 Operational Trigger 2 Trigger activation resumes Program operation 

11.3 TTL I/O Control from RS-232 

The logic levels of pins 2, 3, 4, and 6 can be queried from an attached computer using the RS-232 ‘IN’

command. 

The output logic level of pin 5 can be set with the RS-232 ‘OUT’ command. 
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12. Appendix

12.1 RS-232 Command Summary 

<command> => 

DIA [ < float > ] Syringe inside diameter 

PHN [ < phase data > ] Program Phase number 

FUN [ < phase function > ] Program Phase function 

 < phase function > => 

RAT Pumping rate. ‘RATE’ 

FIL Fill syringe to volume dispensed. ‘FILL’ 

INC Increment rate. ‘INCR’ 

DEC Decrement rate. ‘DECR’ 

STP Stop pump. ‘STOP’ 

JMP <phase data> Jump to Program Phase. ‘JP:nn’ 

PRI Sub-Program Selection Input. 'Pr:In' 

PRL <number data> Sub-Program Start Label definition. 'Pr:nn' 

LPS Loop starting Phase. ‘LP:ST’ 

LOP <count data> Loop to previous loop start ‘nn’ times. ‘LP:nn’ 

LPE Loop end Phase. ‘LP:EN’ 

PAS <number data> Pauses pumping for ‘nn’ seconds. ‘PS:nn’ 

PAS [n.n] Pauses pumping for 'n.n' seconds. 'PS:n.n' 

IF <phase data> If Program input low, jump to Program Phase. ‘IF:nn’ 

EVN <phase data> Set event trigger. ‘Et:nn’ 

EVS <phase data> Set event square wave trigger. 'ES:nn' 

EVR Event trigger reset. ‘Et:RS’ 

CLD Clear total dispense volume. ‘CLR.D’ 

TRG <nn> Override default operational trigger configuration ‘tr:aa’ 

BEP Sound short beep. ‘BEEP’ 

OUT { 0 | 1 } Set programmable output pin. ‘OUT.n’ 

RAT [C | I ] [ <float> [ UM | MM | UH | MH ] ] Pumping rate 

VOL [ <float> | <volume units>] Volume to be Dispensed, or set Volume units 

DIR [ INF | WDR | REV | STK ] Pumping direction 

RUN [ <phase data> ] Starts the Pumping Program 

 [E [<phase data>] ] Pumping Program event trigger 

PUR Start purge 

STP Stop/pauses the Pumping Program or purge 

DIS Query volume dispensed 

CLD { INF | WDR } Clear volume dispensed 

SAF [ <n> [ <n> [ <n> ] ] ] Safe communications mode 

LN [ 0 | 1] Low motor noise mode 

AL [ 0 | 1] Alarm buzzer mode 

PF [ 0 | 1] Power failure auto-restart mode 

TRG [ FT | FH | F2 | LE | ST | T2 | SP | P2 | RL | RH | SL | SH | OF ] Operational trigger default mode 

DIN [ 0 | 1] Directional input control mode 

ROM [0 | 1] Pump Motor Operating TTL output mode 

LOC [ P ] [ 0 | 1]] Keypad lockout mode or Program Entry Mode lockout 

BP [ 0 | 1] Key and Notification beep mode 

OUT 5 { 0 | 1 } Set TTL output level 

IN { 2 | 3 | 4 | 6 } Query TTL input level 

BUZ [ 0 | { 1 [ < n > ] } ] Buzzer control 

VER Query firmware version 

System Commands: Valid regardless of current network address 

*ADR [ <n> [<n>] [ B <baud-rate>] ] Network address and baud rate 

*ADR [ DUAL | RECP | ALTR ] Set Reciprocating, Dual, or Alternating pumping mode 

*RESET Resets pump. Clears program memory and resets setup. 

------------------------------------------------------------------------------------------------------------------------------ 

Network Command Burst => <n> <command> * [Network Command Burst] 

- Communicate simultaneously with multiple pumps on a pump network. 

Any command preceded by the asterisk symbol ‘*’ bypasses the pump network address and Safe mode. 
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12.2 RS-232 Pump Network Connector Wiring 

 

RS-232

To Network To Computer

 PC Com Port Connectors 

25 Pin 9 Pin 

3 - Receive 2 - Receive Connect to pump TXD 

2 - Transmit 3 - Transmit Connect to pump RCV 

9 - Ground 5 - Ground Connect to pump GND 

12.3 Accessories 

12.3.1 ANA-BOXTM 

Part #: ADPT-ANABOX, Analog voltage control interface. 

Allows the pump to be controlled by a variable voltage source. Creates a closed loop system allowing the 

pump to be controlled by an external sensor, such as a pressure sensor, or other variable voltage source. Start 

or stop the pump at a specific voltage level. Set the pumping rate to be proportional to the voltage input. 

12.3.2 Syringe Heater 

Part#: SYRINGE-HEATER, Visit www.SyringeHeater.com for details. 

Flexible heating pad that wraps around the syringe. Thermo-Kinetic Heat Clamping digital controller will heat 

a syringe to a set temperature up to 100 C. 

12.3.3 RS-232 Network Cables 

RS-232 Network Primary Cable 

7 foot cable Part #: CBL-PC-PUMP-7 

25 foot cable Part #: CBL-PC-PUMP-25 

Cable to connect a pump, or the first pump in a pump network, to a standard personal computer’s serial port 

with a DB-9 or DB-25 connector. A 9 pin to 25 pin converter is available. 

RS-232 Network Secondary Cable 

7 foot cable Part #: CBL-NET-7 

25 foot cable Part #: CBL-NET-25 

Cable to connect additional pumps, after the first pump, to the pump network. 

USB to RS-232 Converter Cable 

USB to RS-232 cable, software drivers on CD Part#: CBL-USB232 

Attached to the RS-232 Network Primary Cable, allows communication through a PC’s USB port. 

RCV from network

TXD to network

TXD to computer 

RCV from computer
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12.3.4 Automation Cable: Special Communications Modes Control Cable 

Part #: CBL-DUAL-3 

Using two NE-1000 syringe pumps, this cable either creates an automated, continuous operation pumping 

system, whereby one pump is refilling while the other is dispensing, or creates a dual pumping system, with 

both pumps operating in the same direction. Plus other special communications modes. 

This cable is attached to two NE-1000 syringe pumps via their RS-232 connectors. In this setup, with the 

pumps configured for this operation, one pump acts as the Master controller. With the Master pump 

programmed with a continuous infusion program, the other pump will always be pumping in the opposite 

direction. With proper plumbing, this will create a continuous infusion system. 

Alternatively, the pumps can be set to Dual Pump Mode, whereby the second pump will always follow the 

program on the first pump, including starting, stopping, direction changes, and rate changes. 

When either pump stops, for any reason, the other pump will stop. 

12.3.5 Valve Controller 

Part# ADPT-VALVE-INTERFACE-1 (For one pump) 

Part# ADPT-VALVE-INTERFACE-2 (For two pumps, includes CBL-TTL-1) 

Provides a control interface for your electronic valves. Attach your electronic valves, and the interface will 

control the activation of the valves. The 2 pump interface is used to create a continuous infusion/refill system. 

12.3.6 Foot Switch 

Part #: ADPT-2 

Allows the pump to be operated from a foot switch. Attaches to the TTL I/O connector. 

12.3.7 Lockout Disable Key 

Part#: ADPT-LOCKOUT-KEY 

Enables setting Keypad Lockout mode and allows changing of settings while Keypad Lockout is set. 

12.3.8 Firmware Upgrade 

Part#: FW-1-NE1000 Upgrades to the newest version of the firmware.

Part#: FW-1X-NE1000 Gradient/Linear ramping for smooth gradients, plus other new program functions. 

Part#: FW-1X2-NE1000 Also expands the Pumping Program memory to 340 Phases.

Contact your dealer for these upgrades and to determine the current available version of the pumps internal 

firmware. 

12.4 Troubleshooting and Maintenance 

Maintenance: Periodically, apply a small amount of all-purpose oil to the guide rods and grease to the drive 

screw. 

The mechanism should be kept clean to prevent impeded operation. 

No other special maintenance or calibrations are needed 

RS-232 Communications: If no RS-232 communications is possible or garbled responses are received from 

the pump, check the following: 

If the triangle appears in the upper left of the LCD display, then the pump is receiving valid communications. 

The communications problem is probably with the receiving communication application or with the receive 

line on the cable. 

If the Basic communications mode is used, check if the pump is in Safe communications mode. See section 

10.2, RS-232 Protocol:, for instructions on how to change the communications mode. 

Verify the pump’s baud rate and network address. To set the RS-232 communications parameters, see section 

6.12, ‘Setup’ . 

Using a lower baud rate may also improve the reliability of the RS-232 communications. 

Pusher block makes a snap or click sound when the pump is started: This is a normal condition. When 

the pusher block is manually moved, the drive-nut may not have been fully engaged on the drive screw. The 

sound heard is the drive-nut engaging on the drive screw. 
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Pump doesn’t stop after dispensing a set volume: The pump was previously setup with a multiple Phase 

Pumping Program. To simply dispense a fixed volume at a fixed pumping rate, the second Program Phase 

must be the ‘Stop’ function. See section 9.1, How to Enter Pumping Programs, for instructions on changing 

the Pumping Program. 

Pump stops pumping after a period of time: A dispense target volume has been set. Verify that the 

dispense target volume is set to 0. 

12.5 Specifications 

Mechanical & Electrical Operational 

Syringe sizes: Up to 60 mL (140 mL 

partially filled) 

Maximum speed: 5.1005 cm/min 

Number of syringes: 1 Minimum speed: 0.004205 cm/hr

Motor type: Step motor Maximum pumping 

rate: 

1699 mL/hr with a B-D 

60 mL syringe 

Motor steps per 

revolution: 

400 Minimum pumping 

rate: 

0.73 μL/hr with a B-D 1 

mL syringe 

Microstepping: 1/8 to 1/2 depending on 

motor speed 

Maximum force: 35 lbs. at minimum 

speed, 18 lbs. at 

maximum speed 

Advance per step: 0.2126 um to 0.8504 um 

depending on motor speed 

Number of Program 

Phases: 

41 

Motor to drive screw 

ratio: 

15/28 RS-232 pump network: 100 pumps maximum 

Drive screw pitch: 20 revolutions/” RS-232 selectable baud 

rates: 

300, 1200, 2400, 9600, 

19200 

DC connector: 2.1 mm, center positive Syringe inside diameter 

range: 

0.100 to 50.00 mm 

Voltage at DC 

connector: 

12V DC at full load 

Amperage: 800 mA at full load 

Power supply type: Unregulated linear external wall adapter, country and power source specific (or 

compatible regulated power supply) 

Power supply output 

rating: 

12V DC @ 800 mA 

Dimensions: 8 3/4” x 5 3/4” x 4 1/2” (LxWxH) (22.86 cm x 14.605 cm x 11.43 cm) 

Weight: 3.6 lbs. (1.63 kg) 

Allen Wrench 3/32 Hex 

12.6 Custom Applications 

For specialized and OEM applications, contact your dealer or 

New Era Pump Systems Inc. Custom modifications can be 

made to the mechanics or the firmware. 
New Era Pump Systems Inc. www.SyringePump.com Model NE-1000 Multi-PhaserTM

Publication #1200-01 50 04/06/16 

12.7 Syringe Diameters and Rate Limits 

Syringe 

Manufacturer 

(all names TM)

Syringe 

(mL) 

Inside 

Diameter 

(mm) 

Maximum 

Rate 

(mL/hr) 

Minimum 

Rate 

(μL/hr) 

Maximum 

Rate 

(mL/min)

B-D 1 4.699 53.07 0.73 0.884 

3 8.585 177.1 2.434 2.952 

5 11.99 345.5 4.748 5.758 

10 14.43 500.4 6.876 8.341 

20 19.05 872.2 11.99 14.53 

30 21.59 1120 15.4 18.67 

60 26.59 1699 23.35 28.32 

HSW 1 4.69 52.86 0.727 0.881 

Norm-Ject 3 9.65 223.8 3.076 3.73 

5 12.45 372.5 5.119 6.209 

10 15.9 607.6 8.349 10.12 

20 20.05 966.2 13.28 16.1 

30 22.9 1260 17.32 21 

50 29.2 2049 28.16 34.15 

Monoject 1 5.74 79.18 1.088 1.319 

3 8.941 192.1 2.64 3.202 

6 12.7 387.6 5.326 6.46 

12 15.72 593.9 8.161 9.899 

20 20.12 972.9 13.37 16.21 

35 23.52 1329 18.27 22.15 

60 26.64 1705 23.44 28.42 

140 38 3470 47.69 57.84 

Terumo 1 4.7 53.09 0.73 0.884 

3 8.95 192.5 2.646 3.208 

5 13 406.1 5.581 6.769 

10 15.8 600 8.244 10 

20 20.15 975.8 13.41 16.26 

30 23.1 1282 17.63 21.37 

60 29.7 2120 29.13 35.33 

Poulten & 1 6.7 107.8 1.483 1.798 

Graf 2 8.91 190.8 2.622 3.18 

(Glass) 3 9.06 197.2 2.711 3.288 

5 11.75 331.8 4.559 5.53 

10 14.67 517.2 7.107 8.62 

20 19.62 925.2 12.72 15.42 

30 22.69 1237 17.01 20.62 

50 26.96 1746 24.01 29.11 

Steel 1 9.538 218.6 3.005 3.644 

Syringes 3 9.538 218.6 3.005 3.644 

5 12.7 387.6 5.326 6.46 

8 9.538 218.6 3.005 3.644 

20 19.13 879.5 12.09 14.65 

50 28.6 1965 27.01 32.76 

Syringe 

(μL) 

Inside 

Diameter 

(mm) 

Maximum 

Rate 

(μL/hr)

Minimum 

Rate 

(μL/hr)

Syringe 

(mL) 

Inside 

Diameter 

(mm) 

Maximum 

Rate 

(mL/hr)

Minimum 

Rate 

(μL/hr)

SGE 5 0.343 282.7 0.004 0.25 2.303 12.74 0.176 

(gas tight) 10 0.485 565.3 0.008 0.5 3.257 25.49 0.351 

25 0.728 1273 0.018 1 4.606 50.99 0.701 

50 1.03 2549 0.036 2.5 7.284 127.5 1.752 

100 1.457 5102 0.071 5 10.3 254.9 3.504 

Hamilton 0.5 0.103 25.49 0.001 10 14.57 510.2 7.01 

Microliter 1 0.146 51.23 0.001 25 23.03 1274 17.52 

2 0.206 101.9 0.002 50 27.5 1817 24.98 

5 0.326 255.4 0.004 100 34.99 2942 40.43