Page 2 · 5400 Series TECSource User’s Manual

Table of Contents
Introduction ............................................................................................................................... 3
Safety Terms and Symbols ...................................................................................................... 5
Quick Start ................................................................................................................................ 7
Installation ................................................................................................................................. 9Power and Cable Connections .............................................................................................. 11
Connecting to the TECSource ............................................................................................... 14
Front Panel Operation ............................................................................................................ 14
Settings and Menus ................................................................................................................ 18
Remote Mode Operation ........................................................................................................ 26
Installing the USB Drivers ....................................................................................................... 27
Saving and Restoring Configurations .................................................................................... 27
Using the Function Keys ........................................................................................................ 28
Understanding the Sensor Inputs .......................................................................................... 29
Using the Auxiliary Interface ................................................................................................... 30
Auxiliary Sensors................................................................................................................ 30
Digital Inputs ...................................................................................................................... 30
Digital Outputs ................................................................................................................... 31
Relay .................................................................................................................................. 31
Interlock ............................................................................................................................. 32
Using the Interlock .................................................................................................................. 32
Selecting the Fixture ............................................................................................................... 32
Determining Temperature Stability ........................................................................................ 33
Out Off Menu ........................................................................................................................... 34
Applying Sensor Limits ........................................................................................................... 35
Working With Thermistors ...................................................................................................... 36
Working With RTDs ................................................................................................................. 37
2-Wire versus 4-Wire Measurements ................................................................................ 38
Working With AD590s and LM335s ....................................................................................... 39
Gain Control and the PID Loop .............................................................................................. 39
Using the AutoTune Function................................................................................................. 40
Using the AutoTune Function Remotely ................................................................................ 42
Controlling the Temperature Rate of Change........................................................................ 42
Adding a Temperature Offset ................................................................................................. 42
Changing the Set Point Step Size .......................................................................................... 43
Resistive Heaters and Heat/Cool Only Modes ...................................................................... 43
Using the Current Limit ........................................................................................................... 43
Using the Voltage Limit ........................................................................................................... 44
Correcting the TEC Voltage Measurement ............................................................................ 45
Software Compensation .................................................................................................... 45
4-Wire Measurement ......................................................................................................... 46
Analog Output ......................................................................................................................... 46
External Fan Control ............................................................................................................... 48
User Calibration ...................................................................................................................... 49
Linking Instruments ................................................................................................................ 50
Internal Power Management .................................................................................................. 50
Specifications .......................................................................................................................... 53
Error Messages ....................................................................................................................... 55
Maintenance, Calibration and Warranty ................................................................................ 59
EC Declaration of Conformity ................................................................................................. 61
UK Declaration of Conformity ................................................................................................. 62

5400 Series TECSource User’s Manual · Page 3

Introduction
Thank you for choosing the 5400 Series TECSource from Arroyo Instruments.
Your TECSource is a combination of leading edge technology combined withyears of experience in the field of temperature control.
With a crystal clear 4-line VFD display, very high power output, multi-sensor
support, both RS232 and USB computer interfaces, and auxiliary I/O, theTECSource will fit into almost any temperature control application.
Unlike other temperature controllers in its class which use inexpensive 7segment LED displays, the TECSource takes advantage of its large VFD display
to simultaneously display set point temperature, actual temperature, current, andvoltage.
The user interface of the TECSource is engineered to make using the
instrument straightforward. With its text-based menus, there is never any
confusion over which setting is being changed, and parameters are displayed inclear English (no cryptic numbers or LEDs to decode).
The TECSource offers all the features you would expect from a modern
temperature controller, including:•••

AutoTune for automatic PID parameter calculation
0.004°C temperature stability
0.001°C resolution for both set point and actual temperatures

What’s in the Box
Along with the TECSource itself, you will find a printed copy of the manual, a 2pin interlock header, and a CD with electronic copies of this manual, theComputer Interfacing Manual, and USB drivers are included. For USA
customers, a power cord is included. For non-USA customers, an IEC-60320C13 rated AC power cord must be provided.
Accessories
Arroyo Instruments also sells several accessories designed to work with the
TECSource. These include:•

TECSource Cable, 30A, 2m (p/n 1264)
This cable has 17W2 male/female connectors for interfacing to theLaserMount or other connectorized fixtures, includes wiring for the faninterface, and supports up to 30A of TEC current. A pigtailed version ofthis cable is available as p/n 1265.

Page 4 · 5400 Series TECSource User’s Manual

•

•
•
•
•

TECSource Cable, 17W2 to DB15, 15A, 2m (p/n 1264-DB15)
This cable has a 17W2 male connector for the instrument end and a
DB15 female connector for the mount end, and is used to connect the
5400 to mounts that utilize the DB15 TEC connector, such as the 274
TECMount. The 1264-DB15 supports up to 15A of TEC current.
4400/5400 Series 2U Rack Mount Kit (p/n 1403-RM)
For installing your 5400 Series TECSource into a standard 19” rack.
10kΩ Thermistor (p/n 1600-10K)
100Ω Platinum RTD (p/n 1600-100RTD)
RS-232 NULL Cable, 3m (p/n 1200-NULL)
USB Cable, 3m (p/n 1201)

5400 Series TECSource User’s Manual · Page 5

Safety Terms and Symbols
The following safety-related terms are used in this manual:•••Warnings (noted by the WARNING heading) explain dangers that
could result in physical injury or death;
Cautions (noted by the CAUTION heading) explain conditions that
could result in damage to the instrument, other equipment, or yourdevice.
Notes (noted by the NOTES heading) are not safety-related, and areintended simply to point out important information.

If, at any time, any of the following conditions exist, or are suspected of existing,discontinue use of the unit until it can be inspected by qualified service
personnel:•••

Visible damage to the unit, including damage or stress caused during
product shipment;
Storage of the unit outside the standard storage temperature or
humidity rating, or prolonged storage under harsh conditions;
Failure to operate properly.

If needed, contact your distributor or Arroyo Instruments for service or repair toensure the safety of the product is maintained.

Page 6 · 5400 Series TECSource User’s Manual

Symbols
Power OffPower On

Caution, refer to manual

Earth ground

Caution, risk of electric shock
General Warnings

WARNING
This instrument is intended for use by qualified
personnel who understand the shock and laser hazards
and are familiar with safety procedures required to avoid
injury. Read this manual completely before attempting to
use this product.

WARNINGTo avoid electrical shock, ensure a 3-prong power cord
is used, and is plugged into an earth-grounded
receptacle. Failure to do so can result in severe injury or
death.

CAUTION

There are no user-serviceable parts inside. All service
and repair work shall be done by Arroyo Instruments or
personnel authorized by Arroyo Instruments.
Modifications done by non-authorized personnel willvoid the warranty. Please see the Service section later inthis manual for instructions on how to obtain service forthis instrument.

5400 Series TECSource User’s Manual · Page 7

Quick Start
The 5400 TECSource was designed with ease of use in mind, and you will likely
have little need for this manual for almost all of the features the unit offers. Thissection will show how you can quickly get the unit up and running in almost notime.
The TECSource has a universal input power supply, accepting 90 to 240 VAC,
and 50 or 60 Hz. This covers all conventional power worldwide, but ensure yourAC power meets these requirements.
Plug the AC cord into the unit and into the wall outlet. Turn on the power switch
located on the IPC, and the unit will power up, displaying the model informationand firmware version number.
Press the Menu button to enter the menu, and using the knob, turn to the right
until the I Lim setting is displayed. Press the knob to edit the setting, and adjust
the limit as appropriate to your Peltier. Press the knob again to save the value.
Make the same adjustments to the high and low temperature limits (T-High Lim
and T-Low Lim), as appropriate for your application.
The unit comes pre-programmed for the BetaTHERM 10K3A1 thermistor. If the
TECSource is being connected to a LaserMount, no changes need to be
made, as this is the thermistor used in the mount. However, if you are using
manufacturer’s thermistor or a different BetaTHERM thermistor, you will need toverify the Steinhart-Hart coefficients are set correctly. Navigate to the Main
Sensor Menu, pressing the knob to enter the sub-menu. Adjust the constants toreflect the values for your thermistor.
Once you have made all your adjustments, press the Menu button to exit themenu (in the future, if you’re only changing one value, you do not need to press
the knob --- pressing the Menu button while changing a value will save the value
and exit).
Next, connect the cable between your LaserMount or other fixture and the
Output connector of the TECSource. We recommend using our cables as they
have been designed to work well with the TECSource. If using your own cables,
ensure they have been properly wired according to the pin-out of the
TECSource and your fixture.
Finally, set the set point to an appropriate temperature and press the Output
button. The output will turn on and you will see the voltage and current begin
driving the fixture to the set point you have chosen. Depending on the thermal
size of your fixture, it may take seconds or several minutes to reach the set
point.

Page 8 · 5400 Series TECSource User’s Manual

If you notice the temperature is oscillating around the set point and notstabilizing, you may need to adjust the Gain setting in the menu. You can use
the AutoTune PID feature to automatically calculate the best PID values, or
select from a set of eight factory preset values that typically cover mostapplications. To use the factory gains, if the temperature is quickly jumping up
and down, the Gain will typically need to be reduced. If the temperature is slowly
moving up and down, try a higher Gain. You may need to experiment withseveral gain settings to find the ideal value, and for even finer control, you can
set the Gain to PID and directly set the PID control values.
For more detailed operating and installation instructions, read on.

5400 Series TECSource User’s Manual · Page 9

Installation
Installation of the 5400 TECSource is very straightforward, as the quick start
section above illustrated. This section will provide additional details andconsiderations for installing your TECSource.
After unpacking the unit, make sure all packing materials have been removed
and nothing obscures the ventilation ports on the back and bottom of the unit.
The TECSource has a universal input power supply, accepting 90 to 240 VAC,
and 50 or 60 Hz. This covers all conventional power worldwide, but ensure yourAC power meets these requirements.

CAUTION
Do not exceed 250VAC on the line input.
It is critical to select the proper voltage selection prior toapplying power to the unit. If the actual voltage exceeds
the voltage selection by +/-10%, damage to the unit
may occur.

Powering Up the Unit
Once the correct voltage selection has been made, connect the AC power cord
to the unit.
Turn the power switch, located on the front of the unit, into the on (|) position.
The unit will display the current firmware revision, go through a quick power-up
self-test, and return to the last known operating state.
Ventilation
The TECSource has vent holes on the rear and left side of the unit. You mustnot block these vent holes, or overheating may occur, causing damage to theunit.

Page 10 · 5400 Series TECSource User’s Manual

CAUTION
Do not operate the unit above +40°C ambient, andensure the instrument is properly ventilated, or the unit
may overheat and possible damage to the instrument
may occur.

NOTE
As the unit nears maximum load conditions, it is normal
for the internal fan to significantly increase in speed.
Rack Mounting
The rack mounting kit (p/n 1403-RM) for standard 19” racks are available for the
TECSource. Because the unit draws air from the side, and therefore inside therack housing, be sure that the internal rack ambient temperature (which will
typically be several degrees higher than room ambient) does not exceed theunit’s operating temperature.
Warm-up and Environmental Considerations
In order to achieve the highest level of accuracy, the TECSource should bepowered on for at least one hour prior to taking measurements. In addition,
ensure that the unit is not operating outside the ambient temperature range orhumidity conditions.

5400 Series TECSource User’s Manual · Page 11

Power and Cable Connections
In addition to the input power connector described above, there are fiveconnectors on the rear panel of the TECSource: Output connector, Auxiliary
connector, Interlock connector, USB connector, and RS232 connector.

TECSource Rear PanelTEC Output Connector
The Output connector is a female 17W2, and has the following pin-out:
Pin
A1
1
2
3
4
5
6
7

Description
TE (+)TEC On LED+
Remote TEC Voltage Sense+
Sensor 1–
Sensor 1+
Sensor 3 (AD590) –Sensor 2–
Fan+

Pin
Description
A2
TE (–)
8
TEC On LED– (Signal Ground)9
Remote TEC Voltage Sense–
10
Sensor 1 Remote Sense–
11
Sensor 1 Remote Sense+
12
Sensor 3 (AD590)+
13
Earth Ground14
Sensor 2+
15
Fan– (Signal Ground)
Output Connector (17W2 Female)

Inverting the TE Output
In the event the polarity of the TE pins is backwards, it is possible to reverse thedirection of the TEC current by setting the Advanced » Invert ITE to Yes. While
not recommended as it can lead to confusion when the controller is used later isproperly wired setups, this allows for correct operation of system when the TE
pins are wired backwards and rewiring is not possible or feasible.
Using Remote Sensor
The Remote Sensor 1 pins (10 & 11) are used in RTD 4-wire mode, and provide
a remote measurement of the RTD voltage to eliminate voltage measurement

Page 12 · 5400 Series TECSource User’s Manualerrors. See Working with RTDs below for more information. Only Sensor 1 has 4wire remote sense capability.
Using Remote TEC Voltage Sense
The Remote TEC Voltage Sense pins (2 & 9) are used to remotely measure the
TEC voltage. See Using Remote TEC Voltage Sense below for more information.
Using the TEC On LED
Pins 1 & 8 on the Output connector can be used to drive an LED to indicate
when the TEC is on. The signal is driven from a +5V buffer with a 249Ω resistor
in series with the output, limiting the current to 20mA. This is suitable for the
direct connection of most green and red LEDs. Add additional series resistancefor lower current devices, such as blue LEDs.

TEC On LED Circuit Diagram
Auxiliary Connector
The Auxiliary connector is a female DB-25, and has the following pin-out:
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13

Description
Digital Input 1
Digital Input 2
Digital Output 1
Digital Output 2+5V (100mA MAX)
Relay N/C Contact
Relay N/O Contact
Reserved, no connection
Reserved, no connection

Pin
14
15
16
17
18
19
20
21
22
23
24
25

Description
Digital I/O Ground
Digital I/O Ground
Digital I/O Ground
Digital I/O Ground
Digital I/O Ground
Relay Common
Reserved, no connection
Reserved, no connection

Sensor Ground
Auxiliary Sensor 1
Sensor Ground
Auxiliary Sensor 2
Sensor Ground
Auxiliary Sensor 3
Sensor Ground
Auxiliary Sensor 4
Auxiliary Connector (DB-25 Female)

See Using the Auxiliary Interface below for additional information.

5400 Series TECSource User’s Manual · Page 13

Interlock Connector
The Interlock connector is a 2-pin Phoenix socket with the following pin-out:
Pin
Description
1
Interlock2
Interlock Ground
Interlock Connector (2-Pin Phoenix)
See Using the Interlock below for additional information.
USB Connector
The USB connector is a standard Type B female connector, and can be plugged
into any USB 1.1 or USB 2.0 port. For more information on using the USB
interface, see the Computer Interfacing Manual which is included on the CD that
accompanied this product.
RS232 Connector
The RS232 connection is male DB-9 connector wired in a NULL modem
configuration.
Pin
Description
2
Receive
3
Transmit
5
Ground
1,4,6
Commoned together
7,8Commoned together
9
No connection
Shell
Earth ground
RS232 Connector (DB-9 Male)For more information on using the RS232 interface, see the Computer Interfacing
Manual which is included on the CD that accompanied this product.

Page 14 · 5400 Series TECSource User’s Manual

Connecting to the TECSource
Arroyo Instruments carries two cable assemblies specifically designed forconnecting the TECSource to temperature controlled fixtures or devices. The
1264 is a two meter cable, capable of up to 30A of TEC current, designed foruse with Arroyo Instruments mounts, and has 17W2 connectors on both ends,
one male and one female. The 1265 is identical to the 1264, except that it hasbare wires on the device end, allowing you to terminate the cable with your own
connector or mount.

NOTE
Connections to the TECSource and the fixture must be
secure. Tighten any screws on the connectors, andmake sure all connections are in good condition.

See the manual for your fixture for additional safety and operational information.

Front Panel Operation
Operation of the TECSource is very straightforward. The sections below will
help familiarize you with the front panel, the display, and the menu structure.

The front panel is designed for simplicity in operation. There are six buttons on
the front panel: Output, Menu, Display, Func A, Func B, and the adjustment
knob button.
The Output button is used to turn the output on and off. Whenever the output ison, the blue Output On LED will be lit.
The Menu button is used to enter the TECSource menu. When in remote mode,it acts as a Local button, returning the instrument to local mode.

5400 Series TECSource User’s Manual · Page 15

The Display button is used to cycle through the display modes of the controller.
Because the controller monitors more information than can be displayed atonce, the Display button allows you to cycle between the TEC information,
auxiliary temperature measurements, and digital I/O status.
The Func A and Func B buttons are used to execute user-defined macros,recall saved settings, or other actions as defined in the Function Keys Menu.
The large adjustment knob located on the right hand side of the unit is used tochange the set point or parameters in the menu. It also acts as a push button,
primarily as an enter button, when making changes in the menu.
There are ten LEDs:
Color

Function

When lit, indicates:

Blue

Output On

TECSource is actively controlling the temperature

Red

Error

Error has occurred

Yellow

RemoteUnit is being controlled via a computer

Green

Cool

Instrument is cooling

Green

Heat

Instrument is heating

Green

StableTemperature is stableGreen

ITE Limit

Controller is in current limit

Green

VTE Limit

Controller is in voltage limit

Yellow

T LimitController is in temperature limit

Green

Link

Controller is linked to another instrument

Whenever an error is generated, the red Error LED will light, and the error will be
displayed on the VFD display. There may be one or more errors, but only the
first error will be displayed. To display the next error, press Menu button. To
clear all errors, press the knob. A list of error codes can be found in the Error
Messages section below.
When the unit is in remote mode, the yellow Remote LED will be lit. Moreinformation about how the instrument behaves in remote mode can be found in
the Remote Mode Operation section below.
Control Modes
The TECSource offers three control modes: constant temperature mode (TMode), and constant resistance mode (R Mode), and constant current mode (IteMode).

Page 16 · 5400 Series TECSource User’s Manual

Changing the control mode is done through the menu by changing the Modeparameter to T Mode, R Mode, or Ite Mode.
Constant temperature mode uses the sensor constants to calculate theresistance of the thermistor at the desired or actual temperature.
While most users will only need the temperature control mode, the constantresistance mode allows you to bypass the sensor equation and directly selectthe sensor set point. This can be useful when only the desired sensor value isknown, or when the sensor-to-temperature conversion values are not available
for your sensor.
Main Display Screen
The top of the main display will be the temperature of the active sensor, except
when adjusting the set point. The bottom half of the display can display one ofthree sets of data:
1.
2.
3.
4.

Set point and TEC current and voltage
Sensor readings for the non-active primary sensors
Sensor readings for the auxiliary sensors
Digital input and output status

Example displays are shown below:

T=25.000°c
TSET= 25.000°c
I= 3.25A
V= 6.72V
Main Display: Set Point and TEC Current and Voltage

T=25.000°c
Sens 2= 25.000°c
Sens 3= Disabled
Main Display: Additional Primary Sensors

5400 Series TECSource User’s Manual · Page 17

T=25.000°c
Ax1=25.00
Ax2=25.00

Ax3=
Ax4=

Dis
Dis

Main Display: Auxiliary Sensors

T=25.000°c
Din 1/2/I:On / Off / Off
Dout 1/2/R:Off / Off / Off
Main Display: Digital I/O State
The set point will depend on the control mode you have selected. When in T
Mode, the set point will be temperature. When in R Mode, the set point will be in
the active sensor’s units (ohms for thermistor and RTD, uA for AD590, and mV
for LM335). When in Ite Mode, the set point will be in amps.
Measurements
The second line of the display contains the measurements appropriate for thecontrol mode. In T Mode, the actual temperature, current, and voltage can bedisplayed, depending on the display mode. In R Mode, the actual sensor value
is displayed instead of the actual temperature. In Ite Mode, the actual
temperature is displayed.
No Set Point Error
Because the TECSource uses a digital PID loop, it will always stabilize at the set
point, and you will never have a temperature offset often found with analog
controllers.
Using Limits
The TECSource supports four different types of limits: temperature, sensor,
current, and voltage. There is both a temperature high and temperature low limit,
and if the actual temperature exceeds either of these limits, the output will beshut off. Likewise, both high and low limits exist for the sensor (R limits), and theoutput will be shut off if the sensor measurement exceeds either of these limits,
as determined by settings in the Output Off Menu.

Page 18 · 5400 Series TECSource User’s Manual

Settings and Menus
All parameters of the TECSource can be viewed and changed within the menu
(except for the user calibration adjustments, which must be done via thecomputer interface). The menus are constructed with the most used parameters
first. To change any setting, press Menu to enter the menu then rotate the knob
to select the parameter to change. Press the knob to begin changing the value.
As a visual indication that you are in edit mode, you will see an asterisk appear
next to the value. Once you have made your change, press the knob or Menu
button to store the value. Pressing the Menu button will store and exit the menu,
while pressing the knob will store the value but leave you in the menu to makeadditional changes.
Some settings are contained inside a sub menu, such as communications
settings. To access the sub menu, simply press the knob to enter the sub menu
when its name is displayed.
Below is a complete list of available settings:
Menu

Factory
Default

Description
Root Menu

Mount

Specify the mount connected to the
TECSource. If using a LaserMount, selectthe appropriate model. Otherwise, selectUser Defined.

User
DefinedSensorSets the temperature measurement sensor
for the active sensor. Can be Therm 100uA,
Therm 10uA, LM335, AD590, RTD, or RTD(4-wire).

Therm
100uA

Gain

Gain controls the response of thetemperature controller. A higher gain value
will cause the controller to respond more
quickly to the difference between the set
point and the actual temperature, while alower value will cause it to respond more
slowly. Select PID for direct access to the
PID parameters. See Gain Control and the
PID Loop section below.

10

PID P

The proportional term of the PID loop. Will
only be available if Gain is set to PID.

1

5400 Series TECSource User’s Manual · Page 19

Factory
Default

Menu

Description

PID I

The integral term of the PID loop. Will only
be available if Gain is set to PID.

0.01

PID D

The derivative term of the PID loop. Will
only be available if Gain is set to PID.

0

I Lim

I Lim sets the current limit of thetemperature controller. The limit should be
set to a value that is suitable for your Peltier
device. See Using the Current Limit below
for more details.

3A

V Lim

V Lim sets the voltage limit of thetemperature controller. See Using theVoltage Limit below for more details.

T-Lo Lim

Only displayed when operating in T & Ite
Modes, T-Lo Lim is the lower temperature
limit of the active sensor. It is a duplicate of
the active sensor T Lo Lim in the Sensor
Limits menu, copied here for ease ofaccess.

-99°C

T-Hi Lim

Only displayed when operating in T & Ite
Modes, T-Hi Lim is the upper temperature
limit of the active sensor. It is a duplicate ofactive sensor T Hi Lim in the Sensor Limits
menu, copied here for ease of access.

125°C

R-Lo Lim

Only displayed when operating in R Mode,
R-Lo Lim is the lower sensor limit of theactive sensor. It is a duplicate of the R-Lo
Lim in the Sensor Limits menu, copied here
for ease of access.

0.01kΩ

R-Hi Lim

Only displayed when operating in R Mode,
R-Hi Lim is the upper sensor limit of theactive sensor. It is a duplicate of the R-Hi
Lim in the Sensor Limits menu, copied here
for ease of access.

45kΩ

Mode

This sets the operating mode (T Mode, R
Mode, or Ite Mode) of the temperature
controller.

T ModeInstrument
Rating+ 2 Volts

Page 20 · 5400 Series TECSource User’s Manual

Menu

Description

Factory
Default

Main Sensor Menu
Active Sensor

Selects which primary sensor to be used as
feedback sensor for the control loop.

1

T Offset

Temperature offset for primary sensor.

0

Sens 1

Sets the Primary 1 temperature sensor
type.

Therm
100uA

Sens 2

Sets the Primary 2 temperature sensor
type.

Disabled

Sens 3

Sets the Primary 3 temperature sensor
type.

Disabled

ThermA

The A term in the Steinhart-Hart equation
for use with primary sensors 1 & 2.

1.12924E-03

ThermB

The B term in the Steinhart-Hart equation
for use with primary sensors 1 & 2.

2.34108E-04

ThermCThe C term in the Steinhart-Hart equation
for use with primary sensors 1 & 2.

0.87755E-07

RTD A

The A term in the RTD equation for use
with primary sensors 1 & 2.

3.98480E-03

RTD B

The B term in the RTD equation for use
with primary sensors 1 & 2.

-0.58700E-06

RTD C

The C term in the RTD equation for use
with primary sensors 1 & 2.

4.00000E-12

RTD R0

The R0 term (in Ω) in the RTD equation
for use with primary sensors 1 & 2.

100.00AD590 M

The slope term in the AD590 correction
equation for use with primary sensor 3.

1.00000

AD590 BThe offset term, in °C, in the AD590
correction equation for use with primarysensor 3.

0.000

LM335 M

The slope term in the LM335 correction
equation for use with primary sensors 1& 2.

1.00000

LM335 BThe offset term, in °C, in the LM335
correction equation for use with primarysensors 1 & 2.

0.000

5400 Series TECSource User’s Manual · Page 21

Menu

Description

Factory
Default

Tol Time

Tolerance time is the amount of time, inseconds, that the actual temperature must
be within the set point temperature +/- theTol Temp value for the unit to beconsidered in tolerance.

5 seconds

Tol Temp

Tolerance temperature is a temperatureband (in °C) around the set pointtemperature. When the actual temperature
is within this band for longer than the Tol
Time setting, then the unit is considered to
be in tolerance.

0.1°C

Aux Sensor Menu
Aux1

Sets the Auxiliary 1 temperature sensor
type.

Disabled

Aux2

Sets the Auxiliary 2 temperature sensor
type.

Disabled

Aux3

Sets the Auxiliary 3 temperature sensor
type.

Disabled

Aux4

Sets the Auxiliary 4 temperature sensor
type.

Disabled

ThermA

The A term in the Steinhart-Hart equation
for use with auxiliary sensors.

1.12924E-03

ThermB

The B term in the Steinhart-Hart equation
for use with auxiliary sensors.

2.34108E-04

ThermCThe C term in the Steinhart-Hart equation
for use with auxiliary sensors.

0.87755E-07

Sensor Limits Menu
T1 Lo Lim

Low temperature limit for Primary Sensor 1-99°C

T1 Hi LimHigh temperature limit for Primary Sensor 1

125°C

T2 Lo Lim

Low temperature limit for Primary Sensor 2-99°C

T2 Hi LimHigh temperature limit for Primary Sensor 2

125°C

T3 Lo Lim

Low temperature limit for Primary Sensor 3-99°C

T3 Hi LimHigh temperature limit for Primary Sensor 3

125°C

Ax1 Lo Lim

Low temperature limit for Aux Sensor 1-99°C

Page 22 · 5400 Series TECSource User’s Manual

Menu

Description

Factory
Default

Ax1 Hi Lim

High temperature limit for Aux Sensor 1

125°C

Ax2 Lo Lim

Low temperature limit for Aux Sensor 2-99°C

Ax2 Hi Lim

High temperature limit for Aux Sensor 2

125°C

Ax3 Lo Lim

Low temperature limit for Aux Sensor 3-99°C

Ax3 Hi Lim

High temperature limit for Aux Sensor 3

125°C

Ax4 Lo Lim

Low temperature limit for Aux Sensor 4-99°C

Ax4 Hi Lim

High temperature limit for Aux Sensor 4

125°C

R-Lo Lim

Sensor low limit. Only applies to the active
Primary sensor.

0.01kΩ

R-Hi Lim

Sensor high limit. Only applies to the active
Primary sensor.

45kΩ

Analog Out Menu
Function

Selects the output function of the Analog
Output.

Disabled

Analog Set

When Function is set to Direct, sets theoutput voltage of the Analog Out BNC.

0.000VT Error

When Function is set to T Error, selects thetransfer function for generating the output
voltage as a function of the temperatureerror.

0.01°C/V

T Range

When Function is set to Temperature,
selects the transfer function for generating
the output voltage as a function oftemperature.

10°C/V

Digital I/O Menu
Di1 Func

Selects the action to perform when Digital
Input 1 is true.

None

Di1 Invert

Inverts the active state of Digital Input 1.

No

Di2 Func

Selects the action to perform when Digital
Input 2 is true.

None

Di2 Invert

Inverts the active state of Digital Input 2.

No

Do1 Func

Selects what status is used to control
Digital Output 1.

Off5400 Series TECSource User’s Manual · Page 23

Factory
Default

Menu

Description

Do1 Invert

Inverts the state of Digital Output 1.

No

Do2 Func

Selects what status is used to control
Digital Output 2.

Off

Do2 Invert

Inverts the state of Digital Output 2.

No

Relay

Selects what status is used to control therelay.

Off

Intlk Err

Selects if an interlock error is closed(shorted) or open.

If OpenFan Setup Menu
Ext FanThis selects the voltage for the auxiliary fan
power supply. See the External Fan Control
section below for more information.

Off

Ext Fan Pwr

When Ext Fan is set to Custom, this sets
the specific fan voltage from 4.0 to 12.0
volts. See the External Fan Control section
below for more information.

12.0

Ext Fan ModeControls when the fan operates. See theExternal Fan Control section below for more
information.

Auto

Ext Fan Off

When Ext Fan Mode is set to Delay, thissetting defines the number of minutes todelay turning off the fan after the TEC
output has been turned off. See the External
Fan Control section below for more
information.

5 minutes

Func Keys Menu
Key A
and
Key B

The Key A and Key B settings control theaction assignment for the two function
keys. See Using the Function Keys section
below for additional information.

None

Communications Menu
Baud

This sets the baud rate for the RS-232 serial
port. See the Computer Interfacing Manual
which is included on the CD that
accompanied this product.

9600

Page 24 · 5400 Series TECSource User’s Manual

Factory
Default

Menu

Description

Set While Rmt

To disable changing the set point while in
Remote Mode, set this value to No. To
enable changing the set point while in
Remote mode, set this Value to Yes.

No

Err While Rmt

To turn off the display of errors while inremote mode, set this value to No. To
display errors while in remote mode, set
this value to Yes.

Yes

Terminal
Mode

Terminal mode simply echoes any
characters received over the serial or USB
interfaces.

No

Msg Term

This controls the output message
termination, and can be set to CR/LF, CR,
LF, or None.

CR/LF

System Menu

ConfigAllows for restoring the instrument todefaults, saving configurations, andrestoring configurations. See Saving and
Restoring Configurations below for more
information.

No Change

Brightness

The vacuum florescent display can be set
to one of eight brightness levels.

100%

Audible Beep

This setting controls when the unit
produces audible feedback. Set to No toprevent sound, or Yes to enable audible
alerts such an error messages.

Yes

Lockout Knob

Lockout knob allows you to disable knob
operation from the main display. This
prevents accidental changes of the set
point. The knob will always work in themenus regardless of this setting.

No

Knob Speed

Controls the adjustment speed of the knob.
Possible values are slow, medium, and fast.

Slow

Out Off Menu
Thi Limit

Turns off the TEC output if the TEC exceeds
the temperature high limit

Yes5400 Series TECSource User’s Manual · Page 25

Factory
Default

Menu

Description

Tlo Limit

Turns off the TEC output if the TEC exceeds
the temperature low limit

Yes

Sensor Open

Turns off the TEC output if the sensor
appears to be an open circuit

Yes

Sensor Short

Turns off the TEC output if the sensor
appears to be a short circuit

Yes

Apply
Nonactive

If Yes, output off settings include non-active
primary sensors

No

Apply Aux

If Yes, output off settings include auxiliary
sensors

No

R LimitTurns off the TEC output if the TEC exceeds
the sensor limitNo

Out of Tol

Turns off the TEC output if the TEC is out of
toleranceNo

ITE Limit

Turns off the TEC output if the TEC hits thecurrent limit

No

TEC Open

Turns off the TEC output if the TEC module
appears to be an open circuit

Yes

AutoTune PID Menu
See Using the AutoTune Function section
for more information.
Advanced Menu
T RateSelects a desired temperature ramp rate indegrees Celsius per minute. Set to
0.0°C/min to disable rate limiting.

0.0°C/min

Tset Step

Adjusts the increment of the temperature
set point from 0.001°C to as much as 10°C
per knob tick.

0.001°C

H/C ModeThis selects the heating and/or coolingmode of the TECSource. See the Resistive
Heaters and Heat/Cool Only Modes section
for more information.

Heat/CoolPage 26 · 5400 Series TECSource User’s Manual

Menu

Description

Factory
Default

Cable R

The resistance of the cable and connectors,
in ohms. This setting allows for accurate
voltage measurement at the TEC byremoving the voltage loss of the cable.

0.0080Ω

4-wire VTEThis selects remote TEC voltage sensing,
replacing the TEC voltage measured at the
instrument with the voltage measured
through pins 2 and 9 of the 17W2
connector.

No

Invert ITE

Reverses the direction of the current. Same
as reversing the TE+ and TE- wires.

No

Enable V Lim

Enables the voltage limit functionality anddisplays the V Lim setting in the main
menu.

Yes

Remote Mode Operation
Remote mode operation is when the TECSource is being controlled by acomputer over the USB or RS232 interfaces. When in remote mode, theTECSource behaves differently, preventing you from affecting the operation of
the instrument. Some of the primary differences are you will not be able tochange the set point, turn the output on or off, or enter the menu. While menu
access is never allowed in remote mode, you can enable set point adjustment
and out put on off control by changing the Set While Rmt menu item to Yes in
the Communications menu, or use the REMSET command via the computerinterface.
You can exit remote mode at any time by pressing the Menu button, which has
a secondary function to return the TECSource to local operation when in remotemode.
Details on how to communicate with the TECSource can be found in a separate
Computer Interfacing Manual, which is included on the CD that accompanied
this product.

5400 Series TECSource User’s Manual · Page 27

Installing the USB Drivers
Using the TECSource via USB is just as simple as using the serial port. In fact,
once you have installed the USB drivers, the instrument will appear as a virtual
serial port that you can use just like a standard serial port.
To install the drivers, simply plug in the instrument to your computer. When the
Add New Hardware wizard appears, insert the CD you received with the
TECSource and follow the on-screen instructions.
Once the drivers are installed, to determine the COM port number, go to Control
Panel and select System. Once the System Properties dialog appears, choose
the Hardware tab then click on the Device Manager button. When the Device
Manager appears, click on the plus sign to the left of Ports. The port identified
as an USB Serial Port is the TECSource. In the event you have multiple
TECSource instruments plugged in simultaneously, you will need to experiment
to see which instrument was assigned to which port. For example, you couldchange the set point when the output was off to see which unit’s set pointchanged.

Saving and Restoring Configurations
Using the System Menu » Config menu item, or the *SAV and *RCL commands
over the computer interfaces, TECSource allows you to save up to four
configurations. Each configuration will store all of the instrument settings (except
scripts, function key definitions, and user calibration data), and allow you toquickly recall them. This is particularly useful when the instrument is used in
multiple setups, and the particular configuration of each setup can be stored
and later recalled for a quick reconfiguration.
To store a configuration, simply change the Config menu item to select which
configuration slot you want to store the current configuration into. The
instrument will generate a message indicating the save was successful or not.
You can also use the *SAV command over the computer interface to do this aswell.
To recall a configuration, change the Config menu item to recall theconfiguration you would like to use. You can also use the *RCL command overthe computer interface to do this as well.
A special option for the Config menu item is Defaults, and as the name implies,
it will restore the unit to factory default configuration. However, scripts andconfigurations are not erased, and user calibration data is not cleared.

Page 28 · 5400 Series TECSource User’s Manual

To erase scripts and saved configurations, you must select Reset All in the
Config menu item.
User calibration data can only be reset remotely with the TEC:USERCAL:RESET
command. Take care when clearing user calibration data, as this may change
the performance of the instrument.

Using the Function Keys
The TECSource offers a unique capability: the ability to assign functions to front
panel keys, allowing powerful configuration abilities at the touch of a button.
There are two programmable function buttons.
The function keys can be assigned either of the following actions:••

Run a script
Load a stored configuration

Running a script
The most powerful capability of the function keys is the ability to executecommand strings, or scripts. These scripts are made up of commands, as
defined in the Computer Interfacing Manual, and can effect virtually the entire
operation of the instrument. Any command (except DELAY, *WAI, SCRIPT:GO,or SCRIPT:PUT commands) can be used to construct a script, allowing you to
configure the instrument, change modes, change set points, turn outputs on oroff, or any other of a wide range of actions. Script creation must be done overthe computer interface, see the Computer Interfacing Manual for more
information on how to construct and store scripts.
Loading a previously stored configuration
Using the System Menu » Config menu item, or the *SAV command over thecomputer interface, up to four different configurations can be saved to memory,and can then be assigned as a recall function. For example, consider anapplication where different laser and/or temperature set points are used. Bysaving the different configurations, you can then assign the recall of theconfigurations to a function key, allowing you to switch between different setups
or set points with a single button press.
Prior to configuring the function keys, you need to create your configurations or
scripts. Configurations are easy: simply setup the instrument the way you want,then go to System Menu » Config to store the configuration into one of the four
configuration bins. Repeat the process for each setup you want to recall.

5400 Series TECSource User’s Manual · Page 29

Scripts are a bit more difficult, as you need to create them using the computerinterface. See the Computer Interfacing Manual for more information on how toconstruct and store scripts.
Once your configurations and scripts have been created, go to Func Key Menu
» Key A and assign a recall configuration or execute script function. You will only
be allowed to select the scripts and configurations you have created.

--- Function Menu -«Return to Main Menu
Key A= Recall Cfg 1
Key B=
None
Func Key Menu
Once actions have been assigned to keys, return to the main screen. To initiate
the action assigned to the A or B keys, press and hold the A or B key until the
instrument does a double beep (approximately one second). This indicates theaction has executed.

Understanding the Sensor Inputs
The 5400 supports two types of sensor inputs: primary and auxiliary. The
principle difference between the two is that only primary sensors can be used tocontrol the temperature of your device or mount. Auxiliary sensors can only be
used for monitoring and cannot be part of the control loop.
The 5400 supports three primary sensor inputs:•••

Sensor 1 supports thermistor, LM335, RTD, and 4-wire RTD sensors.
Sensor 2 supports thermistor and RTD sensors.
Sensor 3 supports AD590 sensors.

One, two, or all three primary sensors can be enabled for monitoring, but only
one can be used for the control loop. The primary sensor selected for the control
loop is called the Active Sensor.
In addition to the primary sensors, the 5400 supports four additional auxiliary
sensor inputs via the Auxiliary Interface (see below). Auxiliary sensors cannot be
used for the control loop, and only support thermistor sensors.
For best system performance, unused sensor inputs should be disabled.

Page 30 · 5400 Series TECSource User’s Manual

Using the Auxiliary Interface
The Auxiliary Interface provides connections to the auxiliary sensors, the digital
inputs and output, an electromechanical relay, and an auxiliary +5V power
supply.
Auxiliary Sensors
Auxiliary sensors are wired for a common ground return, so take care to ensurethat a common ground will not cause interference with other parts of yoursystem. In addition, auxiliary sensors should be electrically isolated from allother signal and power connections on the instrument.

CAUTION
Connecting a sensor signal or sensor ground to any
other signal or power interface could cause damage toyour instrument. Sensors should be fully electricallyisolated from all other connections.
Auxiliary sensor settings can be adjusted in the Aux Sensor Menu. The auxiliary
sensors share a common set of Steinhart-Hart coefficients for temperature
conversions which are independent from the primary sensors coefficients. This
allows for dissimilar sensor types to be used.
Each auxiliary sensor has a corresponding high and low temperature limit. By
default, auxiliary sensors that exceed their temperature limits will not cause theoutput to shut down. If you want auxiliary sensors to cause temperature limit
shutdowns, set Out Off Menu » Apply Aux to Yes. See Working With Thermistors
below for more information on using thermistors.
Digital Inputs
The 5400 has two digital inputs: Digital Input 1 and Digital Input 2. They share acommon ground with the digital outputs and 5V auxiliary power supply. If left
unconnected, each digital input will be pulled up into an ‘On’ state via internal
pull-up resistors.
Each digital input can be assigned to act as either an additional interlock input,
or as a remote output on/off control. The logic of the digital input can bereversed, or inverted, to allow for active low signals. These settings can be foundin the Digital I/O Menu » Di# Func and Di# Invert menu entries.

5400 Series TECSource User’s Manual · Page 31

Digital Outputs
The 5400 has two digital outputs: Digital Output 1 and Digital Output 2. They
share a common ground with the digital inputs and 5V auxiliary power supply.
Each digital output can be directly set to be Off (0V) or On (5V), or assigned afunction to control its output state. The available functions are:
•
•
•
•
•
•

Output On – the digital output will turn on when the TEC output is on
Stable – the digital output will turn on when the instrument is
considered to be stable (see Tol Time and Tol Temp settings)
T Limit – the digital output will turn on if the temperature limit isexceeded
I Limit – the digital output will turn on if the instrument is operating at its
current limit.
Remote – the digital output will turn on if the instrument is in remotemode.
V Limit – the digital output will turn on if the instrument is operating at its
voltage limit.

Each digital output includes a 249Ω series resistor, limiting current draw toabout 20mA. If the output is to be used as a signaling LED, in many cases, an
LED can be directly connected across the digital output and ground.
Each digital output has an invert setting to reverse the state of the output if anactive low signal is required. These settings can be found in the Digital I/O
Menu » Do# Func and Do# Invert menu entries.
Relay
In addition to the digital outputs, the 5400 has an electro-mechanical relay which
can be used as an isolated contact for applications such controlling externalsolenoids for valve control, or powering on an external piece of equipment (1A,
30VDC maximum). Relay control is identical to the digital output control, with allof the same functions available. There is no invert function, but both the normallyopen and normally closed contacts are available, allowing for either polarity to
be wired in.
The N/C (Normally Closed) pin 6 will be closed (shorted) to the common pin 19
when the unit is powered off or when the relay is in the “off” state. Similarly, theN/O (Normally Open) pin 7 will be open (not shorted) to the common pin 19.
When the relay is energized, either by changing the menu setting to On, or when
the assigned function is true, the polarity will reverse: pin 6 will be open (notshorted) and pin 7 will be closed (shorted) to the common pin 19.

Page 32 · 5400 Series TECSource User’s Manual

Interlock
In additional to the digital inputs, which can be programmed as an additional
interlock function, the 5400 has a dedicated interlock input on its own dedicatedconnector. The Interlock provides a separate, fully isolated ground to allow for
maximum wiring flexibility in your application. Like the digital inputs, it will also
be pulled up to an ‘On’ (or ‘Open’) state if left disconnected.
The interlock input can only be used for the interlock function, but the polarity
can be reversed using the Digital I/O Menu » Intlk Err menu setting. When thisis set to If Open, the 5400 will generate an interlock error if the output isenergized and the interlock input is open. Similarly, when this is set to If Closed,
the 5400 will generate an interlock error if the output is energized and theinterlock input is closed. To close the interlock, simply apply a shorting jumper
across the two pins of the interlock connector. A 2-pin plug is supplied with ashorting jumper already installed.

Using the Interlock
The TECSource has a dedicated interlock input that can be used to disable the
TEC output. Via the Digital I/O » Intlk Err menu entry, the interlock can be used
to generate an error and shutdown the output if the interlock input is open (IsOpen) or shorted (If Closed).
The Interlock input is an electrically isolated input allowing for safe integration
into both mechanical-type switch closures as well as electronic switches. It has apull-up resistor, so if left disconnected, the interlock status will be “on.” In
addition to the dedicated Interlock input, the digital inputs can also be
configured for interlock operation. See the Interlock section in Using the Auxiliary
Interface, above.

Selecting the Fixture
The TECSource has integrated support for many of the mounts offered by
Arroyo Instruments, such as the 286 TECMount. To simplify operation whenusing these mounts, you can change the Mount setting in the menu to themount type you are using. By selecting a mount, the current limit, temperature
limits, default gain, and sensor settings are automatically adjusted to values
appropriate to the mount, and menu settings limited to the capabilities of themount. For example, when the 286 is selected, the Sensor setting is hiddenfrom the menu, and the current limit is adjusted to the mount’s rated limit toprevent damage to the mount’s Peltier cooler.
Adjusting the Mount setting to User Defined removes all software limits, allowing
unrestricted operation of the TECSource.

5400 Series TECSource User’s Manual · Page 33

Determining Temperature Stability
The 5400 has a Stability LED which can be used to determine when thetemperature has reached a predetermined level of stability. Two menu settings
control this evaluation, Tol Time and Tol Temp, both of which can be found in
the Main Sensor menu.
For the instrument to be considered stable, it must be within Tol Temp of the set
point for at least Tol Time seconds. For example, if Tol Temp was set to 0.5°C,
and Tol Time was 5 seconds, you could rewrite the above statement to read: forthe instrument to be considered stable, it must be within 0.5° of the set point for
at least 5 seconds. Once this condition is met, the Stable LED will light. If at any
time the actual temperature goes further away from the set point, the instrument
is no longer, and will not start counting time until the temperature returns towithin Tol Temp of the set point.
Using 0.5°C and 5 seconds as your parameters, consider the following plot. In
this example, temperature as it is cooling down to 25°C with a typical oscillation
around the set point as it stabilizes. The green regions indicate where thetemperature is within the tolerance window of 25°C +/- 0.5°C, but it is only on
the fourth green region that it actually stays within the window for over 5
seconds. It’s not considered to be stable (in tolerance) until the blue region,
which is 5 seconds after it last entered the tolerance window.
26

25.5

Stable

25

24.5

24

0

5

10

15

20

25

30

Page 34 · 5400 Series TECSource User’s Manual

Out Off Menu
The entries in the Out Off Menu are there to control which conditions of thetemperature controller will turn off the output. The following conditions are listed,along with their defaults:
•
•
•
•
•
•
•
•
•
•

Thi Limit
Tlo Limit
Sensor Open
Sensor Short
Apply Nonactive
Apply Aux
R LimitOut of Tol
ITE Limit
TEC Open(default Yes)
(default Yes)
(default Yes)
(default Yes)
(default No)(default No)(default No)(default No)(default No)(default Yes)

For each condition, if the menu item is set to Yes and the condition is detected,
the output will be shut off.
Temperature limits are a special case due to the multiple sensor inputs. There
are two menu items that control how the temperature limits are applied, Apply
Nonactive and Apply Aux. See Applying Sensor Limits below for more details
on these settings.

5400 Series TECSource User’s Manual · Page 35

Applying Sensor Limits
With the wide range of sensor connectivity options, the 5400 is designed with aseries of temperature protection limits and options to allow for flexibility when
meeting the demands of different applications.
Each sensor has a dedicated high and low temperature limit, which can befound in the Sensor Limits menu. When the temperature input exceeds theselimits, that sensor is considered to be in limit, either high or low. Limit conditions
are also activated when the sensor is open. For thermistor and AD590 sensors,an open circuit will trigger a low limit, while all other sensors will trigger a highlimit.
How the instrument reacts to these limits depends on four menu settings, all ofwhich can be found in the Out Off Menu:••••

Thi Limit
Tlo Limit
Apply Nonactive
Apply Aux

Apply Nonactive is used to include the temperature limits of the non-active
primary sensors when determining if a temperature limit condition exists. Whenset to Yes, non-active primary sensors in limit will cause a temperature limit
condition. If No, non-active primary sensors will not be used in determining if alimit condition exists.
Similarly, Apply Aux is used to include the temperature limits of auxiliary sensors
when determining if a limit condition exists. When set to Yes, if any auxiliary
sensor in limit will cause a temperature limit condition. If No, auxiliary sensors
will not be used in determining if a limit condition exists.
By default, Apply Nonactive and Apply Aux are set to No, which means only atemperature limit of the active sensor will cause the temperature to shut down.
Once a determination is made that a temperature limit condition exists, the Thi
and Tlo Limit settings control if the output will be shutdown. If set to Yes and an
appropriate high or low limit condition exists, the output will be turned off.
In all cases, limits are only applied to enabled sensors. When a sensor is set toDisabled, it will not be evaluated for limit conditions.

Page 36 · 5400 Series TECSource User’s Manual

Working With Thermistors
The TECSource is designed to work with negative temperature coefficient (NTC)
thermistors, such as the BetaTHERM 10K3A1 thermistor used in theLaserMounts. A thermistor works by translating temperature into resistance,with resistance decreasing as temperature increases (hence the ‘negative
coefficient’).
Here is a typical response curve of a thermistor:

50000

Resistance (Ω)

40000

30000

20000

10000

0
-10.00

10.00

30.00

50.00

70.00

90.00

110.00Temperature (°C)

Typical Resistance vs. Temperature Graph
As can be seen be the graph, the resistance of the thermistor drops very quickly.
In the typical control range (0°C to 40°C), typical 10K thermistors offer goodsensitivity to changes in temperature, and this is the range in which most 10K
thermistors are typically used. 10K thermistors can be used at much higher
temperatures, but will suffer poorer temperature stability performance becauseof the lower sensitivity. When evaluating the performance of a thermistor, it isimportant to understand the resistance sensitivity of the thermistor at yourapplication temperature, which varies greatly by temperature and thermistor
types.
The TECSource supports operation using a 10μA or 100μA constant current
source, which limits the upper control range to 450kΩ, 45kΩ, and 4.5kΩ,
respectively. To minimize noise and maximize stability, you should selecthighest current while still allowing you full operation across your required5400 Series TECSource User’s Manual · Page 37

temperature range. The typical setting is 100μA, but your application will
determine the actual needs.
The Steinhart-Hart Equation
As can be seen from the temperature versus resistance graph above, resistancevaries inversely with temperature in a non-linear fashion. This relationship can be
accurately modeled by polynomial equations, and one such being the SteinhartHart equation:

1= A + B * ln( R) + C * ln( R)3T
The coefficients A, B, and C can usually be obtained from the thermistor
manufacturer. The TECSource defaults to the coefficients for the BetaTHERM
10K3A1 thermistor (A = 1.12924x10-3, B = 2.34108x10-4, C = 0.87755x10-7). You
can change the coefficients under the Main Sensor Menu and Aux Sensor
Menu.

Working With RTDs
Like thermistors, RTDs also function by converting temperature into resistance,
but unlike thermistors, RTDs increase in resistance as temperature increases.
RTDs are also a fairly linear device, meaning they can be used across a muchbroader temperature control range.
According to IEC751, the resistance/temperature relationship is determinedusing one of two equations, dependent on the temperature or resistance value
being measured. For resistances above the R0 value (resistance at 0°C, typically100Ω) of the RTD, the following equation is used:

R = R0 (1 + AT + BT 2 )Below R0, an additional term is added to the equation:

R = R0 [1 + AT + BT 2 + C (T − 100)T 3 ]In both of these equations, R0 is the resistance of the RTD at 0°C, and A, B, andC are the coefficients as defined by IEC751, through regression analysis, or byusing the Callendar-van Dusen method. By default, the TECSource uses theLaboratory standard coefficients, which are for a 0.003926Ω/ Ω/°C curve (A =3.9848x10-3, B = -0.58700x10-6, C = 4.0000x10-12, and R0 = 100).

Page 38 · 5400 Series TECSource User’s Manual

The TECSource automatically determines which equation to use based on theconditions at the time of the measurement.
2-Wire versus 4-Wire Measurements
One concern in using RTDs are their relatively low resistance (typically 100Ω at0°C), and small Ω/°C. Because of these two factors, the resistance of the cableused to connect to the sensor can become a significant error in the sensor
measurement. The TECSource offers two RTD measurement modes: aconventional two wire measurement mode, which is subject to this error, and afour wire measurement mode that uses separate sensor and source lines toremotely sense the actual resistance of the RTD and eliminate the cable orconnector resistances.
When using 4-wire measurement mode (only supported by sensor 1), you mustselect RTD (4-wire) as the sensor type, and then connect the Sensor+ andRemote Sensor+ at one side of the RTD, and Sensor– and Remote Sensor– tothe other side of the RTD. Make these connections as close to the sensor as
possible.
The drawings below illustrate how 2-wire and 4-wire connections work. Note that
4-wire measurements require all four wires to be brought through the cable tothe mount.

5400

Sensor+

Mount
RTD
SensorSensor–RTD 2-wire Measurement

5400

Sensor+Remote Sensor+
Remote Sensor–
Sensor–

RTD 4-wire Measurement

Mount
RTD
Sensor5400 Series TECSource User’s Manual · Page 39

Working With AD590s and LM335s
Unlike thermistors and RTDs, an AD590 or LM335 is considered an “IC” sensor
because it has an active transistor element that responds to changes intemperature by producing a current (AD590) or voltage (LM335).
Also unlike thermistors and RTDs, these IC sensors produce a linear response,
making conversion to temperature a very straightforward calculation.
AD590 sensors produce 1µA/K, so that 0°C (which is equal to 273.15K) would
produce 273.15 µA.
Similarly, LM335 sensors produce 10mV/K, so that 0°C would produce 2.7315V.
For both sensors, because the response is linear, the sensor coefficients default
to a slope of 1 and an offset of zero, but can be adjusted to achieve higher
accuracy.
The temperature correction formula for the AD590 or LM335 is:
T = MTC + B
Where TC is the temperature (in °C) calculated using the standard conversion
value of 1°C/µA or 0.1°C/mV, as appropriate, and adjusted from Kelvin to
Celsius.
LM335 is only supported by sensor input 1, while AD590 is only supported by
sensor input 3.

Gain Control and the PID Loop
The TECSource supports a fully configurable PID loop, allowing fullcustomization of the PID control parameters. To simplify control, eight standard
gain settings are also defined, and many applications can achieve acceptableperformance with these predefined gain settings, eliminating the need tounderstand and adjust the PID loop.
The predefined gains are numbered 1 through 300, and set using the Gainmenu setting. Increasing the gain value will increase the speed of the control
loop. For full access to the PID parameters, change the Gain setting to PID, andthe individual P, I, and D values will be available as settings in the menu.
The PID parameters function within a mathematical formula as described below:

Page 40 · 5400 Series TECSource User’s Manual

PID Formula:

Output = P *  + I *  dt + D *ddt

Where  is the error in the system, expressed as: = Target - Actual
The controller can calculate ideal PID values using the AutoTune function,
discussed in detail in the next section.
To manually adjust the PID, start by changing the I and D values to zero, andadjust the P value so that it reaches the set point as quickly as possible without
overshooting the set point an unacceptable amount. Gradually increase the Ivalue until the set point is achieved without oscillation. In many systems, the Dterm is not needed and may be left at zero.
For additional information on PID loop tuning, consult online resources such as
Wikipedia (http://en.wikipedia.org/wiki/PID_controller) or search for terms suchas “Ziegler-Nichols method”, or “PID Loop”.

Using the AutoTune Function
The TECSource is capable of automatically determining PID parameters formost applications. Using a form of the Ziegler-Nichols method, the TECSource
will step through a process to determine the thermal response of the mount,which can then be used in a mathematical model to calculate the PID
parameters.
The PID parameters generated by AutoTune are not necessarily the ideal PID
parameters, and small improvements may be possible by further refining theresults manually.
Before starting the AutoTune function, it is best to begin from ambientconditions, either with the TEC off and the mount stabilized at ambient, or the
TEC on and the set point around 25°C. While this is not required, it can produce
better results. AutoTune only functions in temperature mode. PID parametersmust be manually determined for R mode.
Make sure the current and temperature limits are set prior to starting AutoTune.
AutoTune will intentionally cause your mount to oscillate, so the temperature
limit should be at least 5 to 10 degrees away from the test point to avoid tripping
a limit during the process.

5400 Series TECSource User’s Manual · Page 41

To start the AutoTune function, select the AutoTune PID menu entry from themain menu. Select the desired temperature setpoint. You will want to selectyour typical operating point. If you will be operating at two or more set points,
you will usually want to select the set point furthest away from ambient. Once thetemperature test point is selected, press then Enter. If you wish to perform
AutoTune remotely, see the following section for more information.
The instrument asks for a final confirmation to start the AutoTune process. Press
Enter to start, or Menu to exit.
A
Once the AutoTune process starts, the display will indicate the present
temperature, which step it is performing, and the word “AutoTune” will flash on
the display.
Once the AutoTune process is complete, the output will remain on and thedisplay will show “AutoTune Successful”. The three PID parameters will also be
displayed. Due to display limitations, only the first 2 places of resolution isdisplayed, but additional resolution is available by viewing the PID parameters in
the menu. The Gain setting will also be changed to PID.
If the AutoTune process fails, the instrument will display an E-436 AutoTune
Failed error message and turn the output off. Any of the following can cause the
AutoTune to fail:•••Noisy temperature measurements, which make it difficult to accurately
measure oscillations
Any condition that causes the output to turn off (temperature limits,
sensor limits, etc.)
Systems with very low P or I terms

If the Auto-Tune fails due to thermal system limitations, you will need to manually
modify the PID parameters as described in the section above or select factory
gain setting.
You can turn the output off at any time to cancel the AutoTune process, and the
PID parameters will remain unchanged (an E-436 will also be displayed).

Page 42 · 5400 Series TECSource User’s Manual

Using the AutoTune Function Remotely
The AutoTune function can be done remotely, and works essentially the same as
local operation. The TEC:AUTOTUNE command starts the process, and requires
one parameter, which is the AutoTune temperature test point.
The command will immediately put the instrument into AutoTune mode, and thedisplay will indicate progress in the same way as local operation. The
TEC:AUTOTUNE? query can be used to monitor the process of AutoTune. A
response of 1 indicates AutoTune is in progress. Once complete, the instrument
will respond with a 2 if AutoTune failed or a 3 if AutoTune succeeded. A
response of 0 is returned if the instrument has never started an AutoTune
process since the last power up.
Turning the output off remotely will cancel the AutoTune process and generate
an E-436 error.
More details on the use of the command can be found in the Computer
Interfacing Manual.

Controlling the Temperature Rate of Change
Some applications require that temperature is changed at a specific rate toprevent damage that might otherwise come from rapid changes in device
temperature. Using the Advanced Menu » T Rate setting, it is possible tocontrol the temperature ramp rate of the controller, limiting the rate of change to
specific degrees Celsius per minute.
Because the temperature rate function relies on the instrument tracking a
gradually changing set point, a proper gain setting (or PID values) are importantto achieve a smooth and continuous temperature transition.
To disable the temperature rate function, simply set T Rate to 0.0°C/min.

Adding a Temperature Offset
The Main Sensors » T Offset allows an offset to be added to the temperature
measurement to compensate for the difference between the primary active
sensor used for temperature control and the actual temperature of the DUT. To
calculate this value, subtract the displayed temperature from the known DUT
temperature and adjust T Offset to this calculated value. The displayed
temperature for the primary active sensor will be shifted by this amount,providing higher absolute accuracy. To clear this setting, simple set T Offset tozero.

5400 Series TECSource User’s Manual · Page 43

Changing the Set Point Step Size
In many applications, user will manually adjust the instrument between only afew set points, such as thermal testing in a production environment. In theseapplications the high resolution of the temperature set point can actually be ahindrance, as precisely adjusting between 25.00°C and 50.00°C, for example,
will entail over- and under-shoots as the operator changes from one set point to
the other.
Using the Advanced Menu » Tset Step setting, you can select a step size of
0.001, 0.005, 0.01, 0.05, 0.1, 0.5, 1, 5, or 10°C. In the above application, a step
size of 5°C would allow for rapid and easy adjustment between the twotemperatures.
Note that the step will adjust based on the current set point, so, for example, if
the set point was 25.31°C and the step size was 5°C, the instrument would
adjust to 30.31°C, 35.31°C, etc. you may want to adjust the set point to a goodstarting point before increasing the step size.
Note that changing the step size will not change the resolution of the displayed
value for either the set point or the actual temperature.

Resistive Heaters and Heat/Cool Only Modes
The TECSource supports temperature control using resistive heaters instead of
Peltier coolers. With resistive heaters, cooling is obviously not possible, and the
TECSource must be configured to not attempt to cool the output, or a run-away
condition will occur when the cooling current actually causes additional heating.
If your application requires, you can also configure the TECSource to operate ina cool-only mode. This is only possible with Peltier coolers, as resistive heaters
will heat regardless of the direction of current..
To change the cooling mode, adjust the Advanced Menu » H/C Mode setting toHeat/Cool, Heat Only, or Cool Only, as appropriate.

Using the Current Limit
The current limit in the TECSource is used to limit the amount of current that isdelivered to the mount. Because the TECSource has a hardware currentcontrolled output, the current will not exceed the limit at any time in any mode.
Set the limit by adjusting the I Lim parameter in the main menu.

Page 44 · 5400 Series TECSource User’s Manual

If the current limit engages, the ITE Limit LED on the front panel will illuminate.
Operating at the current limit is common, especially when transitioning from one
temperature to another. There is no harm or danger to the TECSource when
operating in this condition.

Using the Voltage Limit
The TECSource also supports a software-controlled voltage limit. In mostapplications, the voltage limit is not needed, and can be left at the maximum
setting, as the TECSource is a current output controller, and the voltage simply
goes to whatever voltage is required by the TEC. In fact, the voltage limit is arelatively new feature to the Arroyo Instruments controllers because of its typicallack of need. However, with the high output power of the 5400, some
applications can benefit from this capability. By default, the voltage limit is set to
the rating of the instrument plus 2 volts, so it will not engage unless adjusted
lower.
It is important to understand that the voltage limit is a software imposed limit,
which means that the response time to over-limit conditions can be several
hundred milliseconds. During that response time, a significant over-voltage
condition can persist. However, with a properly set current limit, the device is still
protected from excessive power conditions, and should not pose any danger to
TEC devices due to the relatively short duration of the over-voltage condition.
For the voltage limit to engage, the following conditions must be met:•••

V Lim in the main menu is set to 1V or higher
Enable V Lim is set to Yes in the Advanced Menu
At least 25mA of TEC current

The last point is to ensure there is a sufficient current signal that can be used in
calculating the load impedance (and therefore limit the current to correctly limit
the voltage).
If the voltage limit engages, the VTE Limit LED on the front panel will illuminate.
The VTE Limit LED will also illuminate if the TECSource is operating at the
maximum output voltage available to the controller.
Operating at the voltage limit is common, especially when transitioning from one
temperature to another. There is no harm or danger to the TECSource when
operating in this condition.
V Lim will be hidden from the menu if Enable V Lim is set to No.

5400 Series TECSource User’s Manual · Page 45

Correcting the TEC Voltage Measurement
Because the high currents the TECSource can drive through the Peltier, thevoltage loss through the cable and connectors of the system can significantly
affect the TEC voltage measurement. In most cases, accurate voltage
measurements are not needed, and the default compensation of the instrument
is sufficient. To improve the accuracy of voltage measurements, the TECSource
provides two methods to compensate for voltage loss: a software compensationthat requires no additional wiring, or a 4-wire measurement (sometimes called a“Kelvin” measurement), where the voltage of the TEC is measured with anindependent set of wires.
Software Compensation
For software compensation, the Advanced Menu » Cable R setting allows you
to specify the cable resistance, which is then used to dynamically subtract thevoltage drop by simply using the formula V = IR to calculate the voltage loss,
where I is the TEC ITE current, and R is the Cable R setting. This value is thenremoved from the voltage measurement to display an accurate TEC voltage
measurement.
The safest method of calculating cable resistance is to short the TE+ and TE–
connections, making sure whatever you are using to short the terminals is notitself adding resistance to the circuit, and is rated for the current you intend touse as the test current. Use short, heavy gauge wires, preferably soldered onto
the terminals to minimize any resistance the short might add. Place the short as
close to the Peltier as is reasonable. A simple approach is to unplug the cablefrom the mount and place a shorting plug on the mount end of the cable, whichis easily made from a male connector and a soldering iron to solder the TE+
and TE– pins together. Make sure the Peltier is disconnected to protect it fromcurrent overloading during the test.
Change the instrument to ITE mode and set the current to 5A. Depending on
your setup, you may first need to change the Mount to User Defined and adjust
the limit higher. Turn on the output and after the voltage has stabilized, make anote of it and turn the output off. Enter the measured voltage into the following
equation to calculate Cable R:
Cable R = Voltage / Current
Enter the resulting values into the Advanced Menu » Cable R entry and returnthe instrument to its original configuration. Typical values for Cable R are 0.008
to 0.040, but depend on your actual configuration. Once entered, the displayed
TEC voltages will be adjusted based on the above formula.

Page 46 · 5400 Series TECSource User’s Manual

4-Wire Measurement
For the best performance in accurate voltage measurement, the TECSource
supports remote voltage measurement for the TEC using a 4-wire Kelvinconnection. To use remote TEC voltage sense, wire pins 2 (+) and 9 (–) to thecorresponding terminals as close to the TEC module as is reasonable.
To enable the remote TEC voltage sense function, change Advanced Menu » 4wire VTE to Yes. The voltage indicated on the display will now be measured
through pins 2 and 9 instead of TEC+ and TEC- at the instrument. When 4-wire
VTE is enabled, the Cable R setting is ignored.

CAUTION
Do not confuse remote TEC voltage sense with theremote sensor input (pins 10 & 11 on the 17W2
connector), as they are two very different functions, andcrossing their functionality could damage the instrument
or the mount.

Analog Output
The Analog Output provides an adjustable, bi-polar voltage output controlleduser-selected functions. The output can used as a control input to another
instrument, data logged or simply monitored as a process variable.
The voltage can be controlled using one of the following functions, as set in the
Analog Out » Func menu item.
•

Direct – with this function, the analog output voltage can be directly
controlled to a specific value. A second menu item, Analog Set, willappear, and the voltage can be adjusted from -5V to +5V, and thecorresponding voltage will be generated.

•

T Error – with this function, the analog output voltage is proportional to
the temperature error (actual minus set point). When set to thisfunction, a second menu item, T Error, will appear to control thetransfer function of temperature error to output voltage. T Error is in°C/V. The output function looks like this:
𝑉𝑜𝑢𝑡 =(𝑇𝑎𝑐𝑡𝑢𝑎𝑙 − 𝑇𝑠𝑒𝑡𝑝𝑜𝑖𝑛𝑡 )𝑇 𝐸𝑟𝑟𝑜𝑟For example, if the actual temperature was 25.4°C, and the set point5400 Series TECSource User’s Manual · Page 47

was 25.0°C, and T Error was set to 0.1°C/V, then the analog output
voltage would be 0.4V.
•

Temperature – similar to the T Error function, but with this function, theanalog output voltage is proportional to the actual temperature, nottemperature error. When set to this function, a second menu item, T
Range, will appear to control the transfer function of temperature to
output voltage. T Range is in °C/V. The output function looks like this:
𝑉𝑜𝑢𝑡 =

𝑇𝑎𝑐𝑡𝑢𝑎𝑙𝑇 𝑅𝑎𝑛𝑔𝑒

For example, if the actual temperature was 25.4°C and T Range was set
to 10°C/V, then the analog output voltage would be 2.54V.
•

ITE – with this function, the analog output voltage is proportional to the
ITE current, with the current scaled such that at the current limit, 5V (or-5V) is generated. The output function looks like this:𝐼𝑇𝐸𝑎𝑐𝑡𝑢𝑎𝑙
𝑉𝑜𝑢𝑡 = ()∗5
𝐼𝑇𝐸𝑙𝑖𝑚𝑖𝑡
For example, if the current limit (I Lim) was set to 15A, and the actual
current was -4.50A, the analog output voltage would be -1.5V.

Page 48 · 5400 Series TECSource User’s Manual

External Fan Control
The TECSource has a built-in user adjustable 4-12V DC power supply designed
to provide up to 350mA to an external fan, such as those built into the 240
Series LaserMounts. When using the TECSource with mounts that require afan, no additional external power supply is needed, and the Arroyo 126xB series
cables all include the wiring to connect the fan power to the mount.
Fan control is setup in the Fan Setup Menu using the Ext Fan, Ext Fan Pwr, Ext
Fan Mode, and Ext Fan Off settings.
Ext Fan can be set to Off, Slow, Medium, Fast, or Custom. When set to Off, thefan power is never turned on. Slow, Medium, and Fast correspond to 9V, 10.5V,
and 12V. To select a different voltage, choose the Custom setting and thenadjust the Ext Fan Pwr Menu item to the desired voltage, from 4.0V to 12.0V.
The fan on/off mode can be controlled using the Ext Fan Mode setting. There
are five modes:
Auto
On
Delay
Cool
Heat

Fan is turned on whenever the TEC output is on, and turns off when the
TEC output is turned off.
Fan is always on.
Similar to the Auto mode, the fan is turned on whenever the TEC output
is on, but when the TEC is turned off, the fan will remaining running foran addition number of minutes as defined by the Ext Fan Off setting.
Fan is turned on whenever the TEC output is on and cooling, fan is offotherwise.
Fan is turned on whenever the TEC output is on and heating, fan is offotherwise.

5400 Series TECSource User’s Manual · Page 49

User Calibration
The TECSource supports the ability to apply a user calibration to allmeasurement and control functions of the instrument. This allows for fieldcalibration of the instrument as needed to meet the requirements of the user’s
application.

NOTE
Changing the user calibration parameters directly
modifies the performance of the instrument. Usercalibrations should only be performed by individuals
experienced in instrument calibration.

NOTE
Ensure that the standards used to calibrate theinstrument exceed the instrument’s specifications. A test
uncertainty ratio of 4:1 or better is recommended, unlessotherwise required by your application.
User calibration can only be performed by sending appropriate commands tothe instrument over the computer interface (either USB or RS232). The
commands are more fully documented in the Computer Interfacing Manual, but
the essential commands are:
TEC:USERCAL:EDIT
TEC:USERCAL:PUT
TEC:USERCAL:GET
TEC:USERCAL:RESET

Enabled modification of user calibration settings
Changes user calibration settings
Retrieves user calibration settings
Resets all user calibration settings to factory defaults

NOTE
For sensors, the calibration is applied to themeasurement of the sensor, not the temperature. To
adjust the resistance-to-temperature conversion, change
the sensor coefficients as needed.
To prevent accidental modification of the calibration settings, the entries are only
editable when TEC:USERCAL:EDIT 1 command is sent remotely. By default, M

Page 50 · 5400 Series TECSource User’s Manualand B values are 1.000 and 0.00, respectively, but can be adjusted to change
the sensor measurement. The calibrated measurement is computed as follows:
User calibrated reading = M * reading + B
For set point, such as ITE set and analog output, the set point is calculated asfollows:
User calibrated setpoint = M * set point + B
B is always in the units of the sensor or TEC measurement (for example, kiloohms (kΩ) for thermistors, and ohms (kΩ) for RTDs, Amps for ITE current, etc.).

Linking Instruments
The TECSource has the ability to link to a 4400 LaserSource to provide
extended functionality, including a laser interlock that prevents operation of thelaser without the TEC on and stable. When linked, the green Link LED will light.
Upon the release of the 4400 LaserSource, a firmware update of the
TECSource will be made available to enable this feature.

Internal Power Management
The TECSource is a powerful instrument, capable of delivering nearly 1000W insome configurations. When driving a low voltage load at higher currents, acondition can arise where the voltage of the load is too low, and unaddressed,
would result in excessive heat inside the instrument.
To manage this internal thermal load, the TECSource relies on two methods ofpower control: a tunable power supply and current limiting. Where possible, theinternal power supply will be adjusted to minimize the thermal load inside theinstrument.
In some cases, power supply adjustments are not enough, and the instrument
will then reduce the drive current until the internal thermal load is within the
maximum allowable load. In many cases, this will have little effect on theoperation of your application, but may slow the transition from one temperature
to another. When operating in this condition, the display will show an HSLimit
indicator on the display.
However, there may be conditions where the reduced current actually preventsthe mount from achieving the desired operating temperature. The only solution
in this case is to increase the load voltage. The simplest method is to wire a
power resistor in series with the TEC to create additional voltage. Depending on

5400 Series TECSource User’s Manual · Page 51

the voltage of your controller and application requirements, the value of theresistor will vary, but is typically in the 0.1Ω to 1Ω range. Contact the factory for
additional support.
When in ITE mode, the current will not be limited, and an error will be generated
and the output turned off if operating outside the allowable range.
The graphs below illustrate the minimum voltage requirements for the standard
5400-15-28, 5400-30-28, and 5400-20-56 TECSource controllers. Custom
configurations will have a different profile.

Safe Operating Range for 5400-15-28 TECSource
28

Example:At 10A, the minimum voltage at the TEC connector must
be greater than ~2V. Anything less, and the instrument
will lower the current to stay above the red line.

24

TEC Voltage (Volts)

20

Operating Zone
Any combination of current andvoltage that lies above the redline is acceptable.

16

12

8

4
Non-Operating Zone
TEC current will be limited if
operating below the red line.

0

0

5

10

TEC Current (Amps)

15

Page 52 · 5400 Series TECSource User’s Manual

Safe Operating Range for 5400-30-28 TECSource
28

Example:At 25A, the minimum voltage at the TEC connector must
be greater than ~8V. Anything less, and the instrument
will lower the current to stay above the red line.

24

TEC Voltage (Volts)

20

Operating Zone
Any combination of current andvoltage that lies above the redline is acceptable.

16

12

8

Non-Operating Zone

4

TEC current will be limited if
operating below the red line.
0

0

5

10

15

TEC Current (Amps)

20

25

30

5400 Series TECSource User’s Manual · Page 53

Specifications
All values relate to a one-hour warm-up period.

Description
Drive Channel
Current
Range (A)Compliance Voltage (V)Max Power (W)Resolution (A)Accuracy (±[% set point + A])
Noise/Ripple (mA, rms)
Temperature Control
Range (°C)1
Resolution (°C)
Thermistor Accuracy (±°C)3
AD560 Accuracy (±°C)3LM335 Accuracy (±°C)3
RTD Accuracy (±°C)3
Short Term Stability (1hr) (±°C)5Short Term Stability (24hr) (±°C)5Measurement Channels
Current
Resolution (mA)
Accuracy (±[% reading + mA])
Voltage
Resolution (mV)
Accuracy (±[% reading + V])
Sensor6
10µA Thermistor
Range (kΩ)
Resolution (kΩ)
Sensor 1 Accuracy (±[%read+kΩ])
Sensor 2 Accuracy (±[%read+kΩ])
100µA Thermistor
Range (kΩ)
Resolution (kΩ)
Sensor 1 Accuracy (±[%read+kΩ])
Sensor 2 Accuracy (±[%read+kΩ])

15400-15-28

5400-30-28

5400-20-56

15
28
420
0.01
0.5 + 0.01
< 20

30
28
840
0.01
0.5 + 0.01
< 30

20
56
960
0.01
0.5 + 0.01
< 25

-99 to 250
0.0012
0.054
0.05
0.05
0.05
0.004
0.01

0 + 3010
0 + 600 + 3010
0 + 0.05

0.1 – 4500.01
0.05 + 0.05
0.20 + 0.05
0.05 – 45
0.001
0.05 + 0.005
0.20 + 0.005

Software limits. Actual range dependent on sensor type and system dynamics
RTD and auxiliary sensor resolution 0.01°C
3Accuracy figures are the additional error the 5400 adds to the measurement, and does not include thesensor uncertainties.
425°C, 100µA thermistor
5
Stability measurements done at 25°C using a 10kΩ thermistor on the 100µA setting. The number is ½
the peak-to-peak deviation from the average over the measurement period.
6
Specifications apply to both primary and auxiliary sensors unless otherwise indicated.
2

Page 54 · 5400 Series TECSource User’s Manual

Description
LM335
Bias (mA)
Range (mV)Resolution (mV)
Accuracy (±[% reading + mV])
AD590
Bias (V)
Range (µA)
Resolution (µA)
Accuracy (± [% reading + µA])
RTD
Range (Ω)
Resolution (Ω)
Accuracy (± [% reading + Ω])Current Limit
Resolution (A)Accuracy (±A)
Other
Fan Supply
Relay Limits
TEC Connector
Display Type
Computer Interface
Power
Size (H x W x D) [inches (mm)]Weight [lbs (kg)]Operating Temperature
Storage Temperature

5400-15-28

5400-30-28

5400-20-56

11730 – 4250
0.1
0.3 + 1
4.5
173 – 473
0.01
0.03 + 0.1
20 – 192
0.01
0.03 + 0.1
0.1
0.2
4 – 12V, 350mA max
30VDC, 1A max
Female 17W2
4x20 VFD
USB 2.0 Full Speed and RS-232 (DB-9, male)
90 – 240 V, 50/60 Hz

600W
1100W
1100W
3.5 (90) x 12 (305) x 14 (356)11.6 [5.3]+10°C to +40°C-20°C to +60°C

5400 Series TECSource User’s Manual · Page 55

Error Messages
Error
Code

Description

E-003

Factory EEPROM Error

E-004

User EEPROM Error

E-005

User Reset EEPROM

E-006

User EEPROM Failed

E-007

Preset EEPROM Failed

E-008

User EEPROM Failed

E-009

Output Disabled

E-100

General Error

E-102

Message too long

E-104

Type not allowed

E-123

Path not foundCause
The factory section of the EEPROM, whichcontains the calibration data and system
configuration systems, is corrupted. The
unit must be returned to the factory forrepair.
The user settings section of the EEPROM,
which contains user editable set points,
modes, etc., is corrupted. To repair thecorruption, the unit was reset to factory
defaults.
The user reset the unit to factory defaults.
This is a notification message only.
The user settings section of the EEPROM,
which contains user editable set points,
modes, etc., is corrupted. The corruption
cannot be repaired automatically, pleasecontact the factory for assistance.
The preset settings section of the EEPROM,
which contains user section defaults, iscorrupted. The corruption cannot be
repaired automatically, please contact thefactory for assistance.
The user settings section of the EEPROM,
which contains user editable set points,
modes, etc., is corrupted, and the preset
section cannot restore it. The corruption
cannot be repaired automatically, pleasecontact the factory for assistance.
Added to every ERR? or ERRSTR? querywhen the EEPROM is corrupted. The output
cannot be turned on until the corruption
has been repaired.
The error code is non-specific, and isgenerally used when no other error code issuitable.
The message is too long to process(USB/Serial only).
The RADix type was invalid
The message used an invalid pathcommand (USB/Serial only).

Page 56 · 5400 Series TECSource User’s Manual

Error
Code

Description

E-124

Data mismatch

E-126

Too few or too many
elements

E-127

Change not allowed

E-201

Data out of range

E-202

Invalid data type

E-204

Suffix not valid

E-217

Configuration Recall
failed

E-218

Configuration Save
failed

E-220

Script Save Failed

E-221

Cannot embed script

E-222

Cannot execute script

E-303

Input buffer overrun

E-402
E-403

Sensor open, output
turned off
Module open, output
turned off

Cause
The message contained data that did notmatch the expected format (USB/Serial
only).
The command requires more or less than
the number of parameters actually
supplied.
An attempt was made to change aparameter that cannot be changed, or iscurrently read-only.
The message attempted to set a value thatwas outside the allowable range(USB/Serial only).
When trying to parse the message, the data
was in an invalid format (USB/Serial only).
An invalid number base suffix (radix) was
encountered when parsing a number(USB/Serial only).
An attempt recall a configuration failed.
This can be caused if no configuration
exists in the selected slot, the slot number
is out of range, or if the configuration is
corrupted.
An attempt to save a configuration failed.
This can be caused if the slot number is outof range, or the configuration memory is
corrupted.
An attempt to save a script failed. This canbe caused if the script number is out ofrange, or the script memory is corrupted.
A script was executed that contained areference to another script.
An attempt to execute a script failed. Thiscan be caused if the script number is out ofrange, no script exists for the selectedindex, or the script memory is corrupted.
The command input buffer overran, which
can be caused by excessively longcommand strings or improperly terminatedcommands.
A sensor open circuit was detected and theoutput was turned off.
A Peltier module open circuit was detected
and the output was turned off.

5400 Series TECSource User’s Manual · Page 57

Error
Code

Description

E-404

I limit, output turned off

E-405

V limit, output turned
off

E-406

Thermistor resistancelimit, output turned off

E-407
E-409
E-410
E-415

Temperature limit,
output turned off
Sensor change, output
off
Temperature was outof tolerance, output
turned off
Sensor short, output
turned off

E-416

Calibration failure

E-419

TEC not stable

E-433

Not a TEC

E-434

Ite limit exceeds cablerating

E-435

Mode change

E-436

AutoTune Failed
AutoTune Required T
Mode

E-437
E-438

Thermal Trip

I-700

Config saved

I-701

Config loaded

Cause
A current limit was detected and the output
was turned off.
A voltage limit was detected and the output
was turned off.
The thermistor resistance limit (high or low)
was exceeded and the output was turnedoff.
The temperature limit (high or low) was
exceeded and the output was turned off.
The sensor was changed while the output
was on, and the output was turned off.
The temperature went out of tolerance andthe output was turned off.
A sensor short circuit was detected and theoutput was turned off.
The calibration process failed due toimproper setup, an interfering action (setpoint change, output on/off), or unexpected
results.
The TEC exceeded the stability limits as
defined by the tolerance time and tolerance
temperature settings, and the output was
turned off.
The TEC:CHAN command attempted to
select a non-TEC channel
The cable plugged into the unit cannot
carry the current as limited by the Ite Limit
setting. Lower the Ite limit to the cables
capacity, or use a higher capacity cable.
A mode change occurred when the output
was on, and the output was turned off.
The AutoTune process failed.
The AutoTune process was cancelled
because the instrument was not in T mode.
The thermal limit of the heat sink wasreached, and the output was turned off.
Instrument configuration successfully
stored.
Instrument configuration successfully
loaded.

Page 58 · 5400 Series TECSource User’s Manual

Error
Code

Description

I-704

TEC usercal reset

W-803

User reset to factory
defaults

W-805

User recall turned
outputs off

W-806

No function key
assigned

E-992
thru
E-997

Hardware error

A hardware related error occurred. If
problem persists, contact factory.

Command notsupported
Non-specific error

A command was recognized but notsupported by the TEC driver.
A non-specific error was encountered.

E-998
E-999

Cause
The user-provided calibration for the TEC
measurements and set points reset by theuser.
Notification message only: User pressed
key sequence on start-up to reset unit tofactory defaults.
Notification message only: A user
configuration was recalled from memory
while the outputs were on, resulting in the
outputs being turned off.
Notification message only: User attempted
to execute a function key action that was
not assigned.

5400 Series TECSource User’s Manual · Page 59

Maintenance, Calibration and Warranty
Maintenance
The TECSource requires no regular maintenance other than product calibration.
To clean the instrument, use cotton cloth that is only damp (not wet) with a lightsolution of soap and water.
Fuses
Under normal operation, you should never need to replace a fuse. However, ifeither fuse does blow, use only T 250V, 10A, IEC 60127-2 5x20mm metric fuses
as replacements.
If, after replacing the fuse, it continues to blow, immediately discontinue use of
the instrument and contact service for support.
Service
Service and repair for the TECSource can be obtained by contacting the
distributor from where you purchased the instrument, or directly from Arroyo
Instruments. A complete list of distributors is available on the Arroyo web site.
You can contact Arroyo Instruments through one of these methods:
By mail:By phone:
By fax:By email:On the web:Arroyo Instruments
1201 Prospect Street
San Luis Obispo, CA 93401
USA+1 (805) 543-1302+1 (805) 543-1303
support@arroyoinstruments.com
http://www.arroyoinstruments.com

In all cases, Arroyo Instruments requires a return materials authorization (RMA)
number. You must contact Arroyo Instruments and obtain an RMA number prior
to returning your instrument, or the shipment may be rejected and sent back toyou.

Page 60 · 5400 Series TECSource User’s Manual

Warranty
Arroyo Instruments warrants that this product will be free from defects in material
and workmanship and will comply with Arroyo Instruments’ publishedspecifications at the time of sale for a period of one year from date of shipment.
If found to be defective during the warranty period, the product will either be
repaired or replaced at Arroyo Instruments’ option.
To exercise this warranty, write or call your local Arroyo Instruments
representative, or contact the factory directly at the address given above. You
will be given prompt assistance and return instructions. Send the product, freight
prepaid, to the indicated service facility. Repairs will be made and the instrument
returned freight prepaid. Repaired products are warranted for the balance of theoriginal warranty period or 90 days, whichever first occurs.
Limitation of Warranty
The above warranties do not apply to products which have been repaired or
modified without Arroyo Instruments’ written approval, or products subjected tounusual physical, thermal or electrical stress, improper installation, misuse,abuse, accident or negligence in use, storage, transportation or handling. This
warranty also does not apply to fuses, batteries, or damage from battery
leakage.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED ORIMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR USE. ARROYO INSTRUMENTS SHALL NOT BE
LIABLE FOR ANY INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGESRESULTING FROM THE PURCHASE OR USE OF ITS PRODUCTS.

5400 Series TECSource User’s Manual · Page 61

EC Declaration of Conformity

EC Declaration of Conformity
I/Weof

Arroyo Instruments
1201 Prospect Street
San Luis Obispo, CAUSAdeclare that
5400 Series TECSource Temperature Controller
In accordance with the following European Commission Directives:
2014/30/EU - Electromagnetic compatibility (EMC)
2014/35/EU - Low Voltage Directive (LVD)
2015/863/EU - RoHS Directive
has been designed and manufactured to the following specifications:
Under 2014/30/EU
In accordance with EN 61326-1:2013, Emission

CISPR 11 Class A, Group 1 radiated and conducted emissions

In accordance with EN 61326-1:2013, Immunity

EN 61000-4-2:2009 Electrostatic Discharge: ±4kV contact, ±8kV air
EN 61000-4-3:2010 Radiated Immunity: ±3V/m
EN 61000-4-4:2012 Electrical Fast Transients/Burst: ±1kV AC, ±0.5kV I/O
EN 61000-4-5:2014 Surges: ±0.5kV differential mode, ±1kV common mode
EN 61000-4-6:2014 Conducted Immunity: 3V
EN 61000-4-11:2004 Supply Dips and Variations: 100%, 60%, 30%

Under 2014/35/EU
In accordance with EN 61010-1:2010
This Certificate is the Manufacturer’s Declaration which states that the 5400 Series
TECSource Temperature Controller is Compliant to the above noted EU Directives andtherefore eligible to bear the CE MARK.
I hereby declare that the equipment named above has been designed to comply with therelevant sections of the above referenced specifications. The unit complies with all
essential requirements of the Directives.
Paul Corr(NAME OF AUTHORIZED PERSON)

President(TITLE OF AUTHORIZED PERSON)(SIGNATURE OF AUTHORIZED PERSON)

February 17, 2015

(DATE OF ISSUE)

Page 62 · 5400 Series TECSource User’s Manual

UK Declaration of Conformity

UK Declaration of Conformity
I/Weof

Arroyo Instruments
1201 Prospect Street
San Luis Obispo, CAUSAdeclare that
5400 Series TECSource Temperature Controller
In accordance with the following U.K. Legislation Regulations:Electrical Equipment (Safety) Regulations 2016
Electromagnetic Compatibility (EMC) Regulations 2016
The Restriction of the Use of Certain Hazardous Substances inElectrical and Electronic Equipment Regulations 2012
has been designed and manufactured to the following specifications:
Under Electromagnetic Compatibility (EMC) Regulations 2016
In accordance with EN 61326-1:2013, Emission

CISPR 11 Class A, Group 1 radiated and conducted emissions

In accordance with EN 61326-1:2013, Immunity

EN 61000-4-2:2009 Electrostatic Discharge: ±4kV contact, ±8kV air
EN 61000-4-3:2010 Radiated Immunity: ±3V/m
EN 61000-4-4:2012 Electrical Fast Transients/Burst: ±1kV AC, ±0.5kV I/O
EN 61000-4-5:2014 Surges: ±0.5kV differential mode, ±1kV common mode
EN 61000-4-6:2014 Conducted Immunity: 3V
EN 61000-4-11:2004 Supply Dips and Variations: 100%, 60%, 30%

Under Electrical Equipment (Safety) Regulations 2016
In accordance with EN 61010-1:2010
This Certificate is the Manufacturer’s Declaration which states that the 5400 Series
TECSource Temperature Controller is Compliant to the above noted U.K. Legislationand therefore eligible to bear the UKCA MARK.
I hereby declare that the equipment named above has been designed to comply with therelevant sections of the above referenced specifications. The unit complies with all
essential requirements of the U.K. Legislation Regulations.
Paul Corr(NAME OF AUTHORIZED PERSON)

President(TITLE OF AUTHORIZED PERSON)(SIGNATURE OF AUTHORIZED PERSON)

September 27, 2022

(DATE OF ISSUE)

5400 Series TECSource User’s Manual · Page 63

NOTES:

Page 64 · 5400 Series TECSource User’s Manual

Copyright © 2022, Arroyo Instruments. All Rights Reserved.

P/N 530-1039 Rev E