I ORION 

e Schrafft Center 

9 Main Street 

ston, MA 02129 U.S.A. 

800-225··1480 617-242- 90 

x: 617-242-7885 

miON llCAl TECHNOlOGY, INC 

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I h 

MODELS 12B/ i3Q and 135 

CONDUCTIVIT'fiiETERS 

INSTRUCTION MANUAL 

AllmiON ANAl YTICAL TECHNOLOGY, INC 
CAHN. lonalyzer. No Lemon. ORION, PerpHecT, PerpHecTion, pHuture. ROSS and Sure-Flow are registered trademarks of 

Analytical Technology, Incorporated. 

AssuredAccuracy, AUTO-BAR. AUTO-CAL. AUTO-READ. Cable-Free, CERTI-CAL. digital LogR, Extra Easy/Extra Value. FAST QC, 

FilterPro, GLPcal. GLPcheck. GLPdoc. logR, M1n1mum St~r Reqwrement, MSA, OPTIMUM RESULTS. pHISA. Pure Water, OuiKcheK, 

ROSS Resolution, Sage, Titrawr PLUS, Tnode. TURB02, Ultra Range, Unbreakable pH, Universal Access. VariRange, and Zero Track 

are trademarks of Analytical Technology, Incorporated 

AT ATI. WE GUARANTEE YOUR SUCCESS, Guaranteed Success and The Technical Edge are service marks of 

Analyt1cal Technology, Incorporated. 

PerpHecT meters are protected by U.S. patent 4,321 ,544. Other patents pending. 

ROSS and PerpHecT ROSS electrodes are protected by US. patent 4,495.050. 

Other patents pending. 

ORION Series A meters and 900A printer are protected by U.S patents 5,1 08,578, 5, 198,093. 0334,208 and 0346,753 

©Copyright 1995. Analytical Technology, Incorporated 

The spec1f1cat10ns. descnpt1ons. drawtngs, ordenng 1nformat10n and part numbers within this catalog are subject to 

change w1thout not1ce 

lhts publtcatton supersedes all prev1ous publtcattons on th1s subjBct. 

·' --~ ..... 

Models 128, 130 and 135 Conductivity Meters 

Table of Contents 

Chapter I Introduction 1 

Chapter II System Setup 9 

Instrument Setup 9 

Battery Installation 10 

Power Up and Diagnostics Checkout 11 

PowerUp 11 

Setting the Cell Constant C 12 

Conductivity Measurement 13 

Setting the Temperature Function TC 13 

Salinity Measurement 14 

Measurement of Total Dissolved Solids (fDS) 14 

Selecting the Reference Temperature 15 

Switching Between Measuring Ranges 15 

Data Logging 16 

Chapter Ill Use with Printers and Computers 11 

Chapter IV Troubleshooting 

Chapter V Accessories 

Chapter VI Warranty 

Chapter VII Notice of Compliance 

Chapter VIII Specifications 

Chapter IX Ordering Information 

21 

25 

31 

35 

37 

45 
Models 128, 130 and 135 Conductivity Meters 

Chapter/ 

Introduction 

Models 128, 130, and 135 Conductivity Meters 

The ATI Orion Models 128, 130 and 135 Waterproof conductivity 

meters are the highest quality and performance full featured portable 

meters available today, and can be used for a wide variety of applications. 

They are designed for convenient use in virtually any portable application, 

and are available with a wide range of electrodes and accessories. 

The meters are fully waterproof and dust tight meeting IP66 and NEMA 6 

requirements. All models feature a large multi-function display, automatic 

temperature compensation, and both 2 and 4-electrode cell technology. 

All meters are packaged in a field kit which includes carrying case, conductivity probe, electrode holder, conductivity standards, meter holder, 

and line adapter where applicable. 

Models 130 and 135 feature a choice of two temperature compensation 

algorithms as well as 50 point data-logging capability. The Model135 

includes RS232 interface, for easy compatibility with your computer or 

optional printer, and rechargeable batteries. 
Models 128, 130 and 135 Conductivity Meters 

Figure 1 

0 

I 

~nnn 

~ 0.0.0 

Display Modes- Model128 

J.!S/cm 

mS/cm 

1 Alphanumeric Display, Conductivity and User's Instructions 

2 Display Units 

3 Temperature Display 

4 oc Indicator 

5 Temperature Indicator . 

6 Non-Linear Temperature Function Indicator 

7 Reference Temperature Indicator 

8 Low Battery Indicator 

2 

Models 128, 130, and 135 Conductivity Meters 

e 

I 

TDS 

Sal ~nnn ~ 0.0.0 

Figure 2 

Display Models- Models 130 & 135 

1 Display TDS , Salinity 

2 Alphanumerical display, 

conductivity, salinity, TDS 

readings, and user's instructions 

3 Dimension JlS/cm, mS/cm, mg/1 

4 Numerical Display for Cell 

Constant C, Linear Temperature 

Coefficient TC, Temperature, 

IDS-factor and Numerator. 

5 Dimension 1/cm, %/K, oc 

6 Temperature Indicator 

7 Temporary Memory Function, 

Permanent Storage Indicator 

8 Non-Linear Temperature 

Compensation Indicator 

9 Linear Temperature 

Compensation Indicator 

10 Reference Temperature 25 oc 

Indicator 

11 Reference Temperature 20 oc 

Indicator 

12 Automatic Measuring Range 

Selection Indicator 

13 Low Battery Indicator 

3 
Models 128, 130 and 135 Conductivity Meters 

Figure 5 

Rear Panel- Models 128 & 130 

1 Conductivity Cell 

6 

'· •+' 

Figure 6 

Rear Panel- Model135 

1 Conductivity Cell 

2 RS232 Interlace 

Models 128, 130, and 135 Conductivity Meters 

3 Battery Charger (rechargeable batteries on 135 only) 

7 
Models 128, 130 and 135 Conductivity Meters 

0 

I 

Figure 7 

Meter Kit 

Item Description 

1 Meter 

2 Conductivity Probe 

3 Conductivity Standards 

4 Beaker 

5 Field Measurement Stand 

6 Manual 

7 Line Adapter 

8 Tray 

8 

Detail 

Model 128,130,135 

For Units Shipped with Probe 

(135 only) 

For Standards 

r 

Models 128, 130, and 135 Conductivity Meters 

Chapter// 

System Setup 

Instrument Setup 

Power Source 

Models 128 and 130 operate on four non-rechargeable AA alkaline 

batteries ( 15 V). 

• The estimated battery life is between 1000 to 3000 hours (128), 

or 500 to 2500 hours (130), for continuous operation 

The Mode/135 operates on four standard AA rechargeable NickelCadmium batteries (1.2 V, 700 mAh). 

• Life for a full charge is approximately 150 to 800 hours of normal use. 

• Charging time for the 135 is approximately 16 hours. 

- Both Models 130 and 135 will switch off one hour after the last key 

operation, except when the serial port of the Model 135 is connected to 

an external device and turned on. 

- The Model128 will switch off automatically three (3) hours after the 

last actuation of selector switch. 

- The LoBat, low battery indicator indicates that approximately 20 hours 

of operation time are remaining. 

9 
Models 128, 130 and 135 Conductivity Meters 

Battery Installation 

(Note- Meters are shipped with batteries installed.) 

1. Switch the meter off before opening. 

2. Open the meter by removing 4 screws located on the bottom of the 

case. Remove the rear case cover. Remove and discard old batteries. 

3. Insert battery pushing gently until it locks in place. Make sure polarity 

is correct as shown in the battery compartment. 

Caution: 

- Use only standard non-rechargeable alkaline AA batteries in the 

Model128 & 130 

- Use only standard rechargeable nickel-cadmiumAA batteries 

(1.2 V, 700 mAh) in the Model135. 

- Type of Line Adapter: 110 VAC: Cat No. 080020 

(For Mode/135 only) 220 VAC: Cat No. 080021 

- Always replace batteries in sets of four. 

- Check the condition of batteries at least once per year. 

4. Replace the rear cover. Replace and tighten the four screws snugly. 

10 

Be sure the rubber seals around each screw are intact, or leakage into 

the meter may result. Do not over tighten! 

Models 128, 130, and 135 Conductivity Meters 

Power Up 

Model128 . 

1. Switch the ON/OFF selector to the ON position to tum meter on. 

All display annunciators will briefly be displayed. 

Model130 & 135 

1. Press -the ON/OFF key to turn meter on. All display annunciators 

will briefly be displayed. 

2. Current operating parameters serial port (on,oft), cell constant, and 

temperature coefficient will be displayed sequentially. 

3. If LoBat indicator remains on, replace or recharge battery. 

4. The meter will then return to the last selected operational mode. 

11 
Models 128, 130 and 135 Conductivity Meters 

Setting the cell constant C 

Models 130 & 135 To !.e. \'r"<..Cise, 

1 Imm th 11 . th · d d l · W<4 ...... ~.,.2!i c,b._.-t . erse e ce mto e appropnate stan ar so ution. Rfji.Tc"'f· she .. l.t he 

2. Press the C key to select the free adjustable cell constant.c. lo.se e.Mu':)h • 

(Default constant is set at 0.475 cm-1) · 

3. Press the C key again to select the fixed cell constant at 0.100 cm-1 . 

4. Press the C key a third time to switch back to free adjustable cell 

constant. . tt- t ..J :t 0 f co...dv.€tivih} 5. Use the ::::::::: :::::::::keys to adjust the cell constant. so nQ. re o~~o -~ .. do. _, N\o.tc.hes tha.t <TT s """ ,..., 

6. Press the X key to return to measurement mode. (Re. .. cl bottt..J 

7. Verify adjustment in the standard solution. 

8. Repeat steps 2 though 6 if further adjustment is necessary. 

Setting the temperature function TC 

Models 130 & 135 

1. Immerse electrode into the sample solution. 

2. Press the TC key, nLF will be displayed for natural water. 

3. Press TC key again for no temperature compensation, 0.00 will be 

displayed. 

4. Press TC key a third time for adjustable temperature compensation 

mode, 2.00 will be displayed. 

5. Use ::::::::: ::::::::: keys to adjust temperature compensation value to desired 

value. 

6. Press the X key to return to measurement mode. 

12 

Models 128, 130, and 135 Conductivity Meters 

·-·· 

Conductivity Measurement 

Model128 

1. Rinse the cell in deionized water and blot dry. 

2. Immerse the cell into the sample solution. 

3. Use the selector switch to select measurement range corresponding to 

the required resolution. 

(*If OFL is displayed, select the next higher measurement range on the 

selector switch.) 

4. Record measurement value on display. 

ModelS & 135 

1. Rinse the cell in deionized water and blot dry. 

2. Immerse the cell into the sample solution. 

3. Press the X key until conductivity mode is displayed. Conductivity 

measurement is done continuously. 

4. Record measurement value displayed. 

5. If OFL is displayed, see Troubleshooting section. 

NOTE: Cell constant, temperature coefficient, and reference 

temperature must be properly set to obtain an accurate reading. 

13 
Models 128, 130 and 135 Conductivity Meters 

Salinity Measurement 

Models 130 & 135 

1. Immerse electrode into the sample solution. 

2. Press the X key until the Sal annunciator is displayed. 

3. Record value displayed. 

Measurement of Total Dissolved Solids (TDS) 

Models 130 & 135 

1. Immerse electrode into the sample solution. 

2. Press the X key until the IDS annunciator is lit. 

3. Press the :::::::: ::::::: to set desired TDS factor. 

4. Record value displayed. 

14 

NOTE: Calibration should be done before measurement of salinity or 

TDS. See page 12 for procedure. 

-

.. . ... -~-:'fo'- .;~· • 

Models 128, 130, and 135 Conductivity Meters 

Selecting the Reference Temperature 

Models 130 & 135 

1. Switch off the instrument. 

2. To change the temperature reference, while meter is still off hold down 

the TC key, while pressing the ON/OFF key, then release both keys, 

the Tref 20 annunciator will at this point be lit. 

3. To switch the reference temperature back again, turn instrument off, 

and repeat step 2. After completing step 2 the Tref25 annunciator 

will at this point be lit again. 

Switching between Measuring Ranges 

(Automatic to Manual) 

Models 130 & 135 

1. Switch off the instrument. 

2. To tum on AutoRange, press and hold the :::::::: key while the meter is 

still off, press the ON/OFF key, holding the:::::::: key down, then 

release both keys, the ARng annunciator will be lit at this point. 

3. To switch to manual, press and hold the:::::::; key while the meter is 

still off, press the ON/OFF key, holding the:::::::; key down, then release 

both keys, the ARng annunciator will disappear. 

4. To manually change ranges in conductivity, or to change to salinity or 

IDS mode, continue to press X· 

15 
Models 128, 130 and 135 Conductivity Meters 

Data Logging 

Models 130 & 135 

Storage 

1. Press the X key. Storage is only possible in Conductivity, Salinity and 

IDS modes. 

2. To log data from concentration or percent saturation mode, press the 

STO key. The current reading will be written to the log, and a log 

identification point (01 to 50) will be displayed (On the temperature 

display). After display of the logged reading for approximately one 

second, the display will return to active. 

3. After using the 50th storage location, the instrument will display 

Ful Sto . 

4. Pressing the RUN/ENTER key will overwrite an already occupied 

storage location. (This functions only when all 50 storage registers are 

fulL) Pressing ariy other keys prevents overwriting of stored data. 

5. To continue to overwrite stored data, press the STO key, then the 

RUN/ENTER key for each data point. 

16 

- - ·~ · -

Models 128, 130, and 135 Conductivity Meters 

Readout of Stored Data 

1. Press X key to get into either LF, Sal or TDS operation mode. 

Readout is possible in only these three modes. 

2. Press the RCL key. The log identification point will be briefly 

displayed, then the conductivity value and the temperature, with the 

Mem annunciator displayed. This logged information will remain on 

the display until another key press, or until the meter shuts off 

automatically after one hour. 

3. To scroll through the stored data, use the:::::::::: or the:::::::::: key. Hold down 

the key in order to more quickly review the data. 

Clearing Storage 

1. Turn instrument off. 

2. Press and hold down the STO key, while depressing the ON/OFF key, 

then release both simultaneously. Clr Sto will be displayed 

3. Press the Run/Enter key to erase all data. 

4. - -- Sto will be displayed, confirming the erasure. 

5. Pressing any other key before the Run/Enter key prevents erasure 

of the data. 

17 
Models 128, 130 and 135 Conductivity Meters 

18 

- ! 

Models 128, 130, and 135 Conductivity Meters 

Chapter Ill 

Use with Printers and Computers 

One way communication to printers and computers is available on the 

on Model135 only. 

Serial Interface 

Connect cable to port 2 of the Model 135. 

For computer, use cable Cat. No. 080033 

For printer, use cable Cat. No. 080034 

Data Transmission Settings 

Baud Rate 4800 

Parity None 

Handshake RTS/CTS Handshake 

Data Bits (PC only) 8 

Stop Bits (PC only) 1 

Turning Serial Interface ON 

1. Press the X and the ON/OFF keys simultaneously, keeping the key 

depressed while switching on the instrument. 

Turning Serial Interface OFF 

1. Press the X key and the ON/OFF keys simultaneously, keeping the key 

depressed while switching on the instrument. 

2. Instrument transmits a value pair (Example 903 Stem and 21.2 °C) by 

pressing RUN/ENTER key via RS232 interface. 

19 
Models 128, 130 and 135 Conductivity Meters 

Continuous Transfer of Measured Values 

1. Tum Interface on, as described above. 

2. Connect your serial device (Printer or Computer) to the meter. 

3. Data from the display will be transmitted continuously through the 

serial port. 

Readout of Data in Memory 

1. Press RCL key to set meter to memory readout. 

2. Press Run/Enter. All data in memory will be transmitted from oldest 

to newest value. 

20 

Models 128, 130, and 135 Conductivity Meters 

Chapter IV 

Troubleshooting 

Power Up and Self Diagnostics Checkout 

Self Diagnostics Test and Internal Slope Adjustment 

Model130 & 135 

1. Hold down the RUN/ENTER key while pressing the ON/OFF key to 

turn the meter on. 

2. The meter will perform internal self-diagnostic tests and an internal 

slope adjustment. 

Error Messages 

Displayed Error 

Message and 

Symptom Cause Action 

OFL (Main Display) The test value is out Select next-higher 

Indication range of measuring range measunng range 

exceeded 

LoBat Batteries Change or charge 

nearly discharged batteries 

Eo Timeout of the Check connected 

(Displayed on serial interface printer or computer. 

Model130 & 135) 

OFL (Temperature No probe connected Check probe. 

Display) or defective probe 

21 
Models 128, 130 and 135 Conductivity Meters 

22 

Models 128, 130, and 135 Conductivity Meters 

Chapter V 

Accessories 

Protective Plastic Probe Sleeve Cat. No. 080044 

The Protective Probe Sleeve Cat. No. 080044 is a rugged, 3 piece sleeve 

which fits on any 0830XX series probe. A two piece sleeve assembly 

attaches to the cap of the probe, and the protective sleeve attaches by a 

threaded connection to this sleeve assembly. 

Protective Stainless Steel Probe Sleeve Cat. No. 013044 

The Protective Probe Sleeve Cat. No. 013044 is a rugged, 3 piece sleeve 

which fits on any 0830XX series probe. A two piece sleeve assembly 

attaches to the cap of the probe, and the protective sleeve attaches by a 

threaded connection to this sleeve assembly. 

23 
Models 128, 130and 135 Conductivity Meters 

Rubber Meter Cases and Carrying Straps 

Rubber Meter Case with Handles Cat. No. 080053 

...•... 

:. 

0 

J 

TDS 

Sal 1888~ 

ILoBatl : BBB'C~~IITl 

Mrll!IREF 20TREf 2SIU1WIMerr1 / 

····· ••• ••• -

·· ·:·····.·: • . •.·. ·

) 

····.···. :·.:···.·

/ 

·.• .• .. ·.~ s . ::-.·:· 

} 

=-· .. •. ·. ····· . 

Figure 8 

Assembly Instructions 

1. Insert meter into case. 

2. Fasten end straps 1 to holding clips 2 (pass through loops and 

draw back). 

3. Place holding clips 2 in slots on the back of the case 3 and slide down . 

24 

Models 128, 130, and 135 Conductivity Meters 

Rubber Meter Case Cat. No. 080051 

Carrying Strap and Probe Quiver Cat. No. 080052 

II 

II 

Figure 9 

Assembly Instructions 

1. Insert meter into case . 

2. Fasten strap to case same as 080053, above. 

3. Attach Probe Quiver Clip 2 into the notch on the carrying strap clip 1. 

4. Press Probe Quiver 3 into Probe Quiver Clip 2. 

5. Probe Quiver 3 is adjustable within a range of 90°. 

25 
Models 128, 130 and 135 Conductivity Meters 

Figure 10 

Assembly Instructions 

1. Insert strap 1 to case as shown through slots at the bottom of the case 2. 

2. Connect strap ends with strap clip 3. 

26 

. 

Models 128, 130, and 135 Conductivity Meters 

Cables and Cable Connections 

Connect to port 2 of the Model 135. 

For computer, use: Cat. No. 080033 

~ 

~ Meter RS.232 

Connector (Pins) 

Meter 

Connections for 

Personal Computer 

Figure 11 

GND 

Cable Computer 

27 
Models 128, 130 and 135 Conductivity Meters 

For printer, use: 

~ 

~ Meter Rs-232 Connector (Pins) 

Meter 

Cat. No. 080034 

CTS 

4 TXD 

RS.232 Cable 

Connector (Sockets) 

GND 

Cable 

Connections for 

PRT300 Printer 

Figure 12 

28 

Connector DB25P 

(Pins) 

Printer 

(PRT300) 

Models 128, 130, and 135 Conductivity Meters 

Use with Orion Printer Models PRT300 and PRT301 

Dip switch settings must be set as follows. For further information see 

the printer instruction Manual 

ON 

~~~~~~~~ 1 2 3 4 5 6 7 8 

1 OFF 

2 OFF 

3 OFF 

4 ON 

5 OFF 

6 OFF 

7 ON 

8 OFF 

Figure 13 

29 
Models 128, 130 and 135 Conductivity Meters 

30 

Chapter VI 

Warranty 

Models 128, 130, and 135 Conductivity Meters 

Orion's warranty covers failures due to manufacturer's workmanship or 

material defects from the date of purchase by the user. User should return 

the warranty card to Orion and retain proof of purchase. Warranty is void if 

product has been abused, misused, or repairs attempted by unauthorized 

persons. 

Warranties herein are for product sold/installed by Orion or its authorized 

dealers. 

Any product sold by a U.S. or Canadian distributor must be returned to 

Orion by the dealer for any warranty work. A Return Authorization 

Number must be obtained from Orion Laboratory Technical Service before 

returning any product for in-warranty repair or replacement. 

In the event of failure within the warranty period, Orion will at Orion's 

option, repair or replace product not conforming to this warranty. There 

may be additional charges, including freight, for warranty service performed in some countries. For service, call Orion (or its authorized dealer 

outside the United States and Canada). Orion reserves the right to ask for 

proof of purchase, such as the original invoice or packing slip. 

Laboratory pH Meters, pHIISE Meters, PerpHec~ pHIISE Meters, Sage"' 

Pumps, Cahn® Balances, 950 ROSS® Fast QC Titrator, 960 Titrator PLUS"', 

Karl Fischer Titrators, pHuture® Conversion Box are warranted to be free 

from defects in material and workmanship for a period of twelve (12) 

months from the date of purchase by the user or eighteen ( 18) months from 

date of shipment from Orion, whichever is earlier, provided use is in accordance with the operating limitations and maintenance procedures in the 

instruction manual and when not having been subjected to accident, alteration, misuse, or abuse. 

The warranty period for 960 Titrator PLUS pumps is three (3) months from 

date of purchase. 

31 
Models 128, 130 and 135 Conductivity Meters 

In the event of failure within the warranty period,ATI Orion • Cahn will at 

ATI Orion • Calm's option, repair or replace product not conforming to this 

warranty. There may be additional charges, including freight, _for warranty . 

service performed in some countries. For service, call ATI Orion • Calm ( o~ Its 

authorized dealer outside North America). ATI Orion • Cahn reserves the nght 

to ask for proof of purchase, such as the original invoice or packing slip. 

Economy Line Electrodes 

Economy Line Electrodes, Models 91-05,91-06,91-15,91-16,91-25,91-

26,91-35,91-36,92-06, are warranted to be free from defects in material 

and workmanship for a period of three (3) months from da~e of p~chase ~y 

customer or six (6) months from date of shipment from Orion, whichever IS 

earlier. Warranty also includes failure for any reason (ex_cluding b~e~ag~), 

except abuse, provided the electrode i~ not _used i? soluti~:ms contarnmg silver, sulfide, perchlorate, or hydrofluonc acid; or m solutions more than one 

(1) molar in strong acid or base at temperatures above 50° C. 

Ion Selective Electrodes, ionplus"' Electrodes, ROSS Electrodes, Sure-Flow 

Electrodes, PerpHecT Electrodes, Standard Line pH Electrodes, T~~ pH 

Electrodes, pHuture pH probes, Series 100 Conventional Conductivity 

Cells, temperature probes and compensators (except those mode~s noted) 

are warranted to be free from defects in material and workmanship for a 

period of twelve (12) months from the date of purch~e by ~e custoi?er o~ 

eighteen (18) months from date of shipment from Orion, whichever ~s earlier, except for abuse or breakage of electrodes. 93 and 97 ionplu_s S~nes 

sensing modules are warranted to give six (6) months of operation if placed 

in service before the date indicated on the package, except 93-07 and 97-07 

Nitrate modules are warranted to give ninety (90) days of operation if 

placed in service before the date indicated on the package. 

32 

., ' .. ~· 

Models 128, 130, and 135 Conductivity Meters 

ORION® pHuture® Probe (Cat. No. 615700), Low Maintenance Triode~ 

(Cat. No. 9107BN), and PerpHecT Low Maintenance Triode (Cat. No. 

9207BN), Waterproof Triode (Cat. No. 9107WP), QuiK.cheK"' Meters, and 

Micro Electrodes are warranted to be free from defects in material and 

workmanship for a period of six (6) months from date of purchase by the 

customer or twelve (12) months from date of shipment from Orion, 

whichever is earlier when used in accordance with the operating limitations 

and maintenance procedure in the instruction manual and when not having 

been subjected to accident, alteration, misuse or abuse. 

Series 100 Conductivity Meters (Models 105, 115, 125, 150), Series 100 

DuraProbe"' Conductivity Cells and Series 800 Dissolved Oxygen Meters 

(Models 810 and 850) and Probes and Multi-Parameter Meter (Model 

1260) are warranted to be free from defects in material and workmanship 

for a period of twenty-four (24) months from the date of purchase by the 

user or thirty (30) months from the date of shipment from Orion, whichever is earlier, provided use is in accordance with the operating limitations 

and maintenance procedures in the instruction manual and when not having been subjected to accident, alteration, misuse, or abuse. 

Waterproof meters (Models 830,835,260,265, 128, 130, 135, 142 and 

842), Conductivity meter (Model162), pH meter (Model545), 

pH/Conductivity meter (Model550), and Dissolved Oxygen meter (Model 

862) are warranted to be free from defects in material and workmanship 

for a period of thirty-six (36) months from the date of purchase by the user 

or forty-two ( 42) months from date of shipment from Orion, whichever is 

earlier, provided use is in accordance with the operating limitations and 

maintenance procedures in the instruction manual and when not having 

been subjected to accident, alteration, misuse or abuse. 

33 
Models 128, 130 and 135 Conductivity Meters 

ORION Meter, Electrode, Analytical System Accessories, Solutions, Series 

800 Dissolved Oxygen Probe Membranes and Cahn Balance Accessories 

such as cables, printers, and line adapters carry an "out-of-box" warranty. 

Should they fail to work when first used, contact Orion immediately for 

replacement. Should ORION Solutions or Buffers be unusable when first 

"out-of-box", contact Orion immediately for replacement. 

THE WARRANTIES DESCRIBED ABOVE ARE EXCLUSIVE AND IN 

LIEU OF ALL OTHER WARRANTIES WHETHER STATUTORY, 

EXPRESS OR IMPLIED INCLUDING, BUT NOT LIMITED TO, ANY 

IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR 

A PARTICULAR PURPOSE AND ALL WARRANTIES ARISING 

FROM THE COURSE OF DEALING OR USAGE OF TRADE. THE 

BUYER'S SOLE AND EXCLUSIVE REMEDY IS FOR REPAIR OR 

REPLACEMENT OF THE NON-CONFORMING PRODUCT OR PART 

THEREOF, OR REFUND OF THE PURCHASE PRICE, BUT IN NO 

EVENT SHALL ORION (ITS CONTRACTORS AND SUPPLIERS OF 

ANY TIER) BE LIABLE TO THE BUYER OR ANY PERSON FOR 

ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL 

DAMAGES WHETHER THE CLAIMS ARE BASED IN CONTRACT, 

IN TORT (INCLUDING NEGUGENCE), OR OTHERWISE WITH 

RESPECT TO OR ARISING OUT OF THE PRODUCT FURNISHED 

HEREUNDER. 

Representation and warranties made by any persm~, inclu~g its autho- . 

rized dealers, representatives and employees of Orion which alter or are m 

addition to the terms of this warranty shall not be binding upon Orion 

unless in writing and signed by one of its officers. 

34 

NOTE: For in- or out-of-warranty repair or service, contact Orion 

Technical Service (or its authorized dealer outside the United States 

and Canada). Technical Service will issue a Return Authorization 

(RA) for all warranted services. You must have an Orion Rl\ prior to 

returning/forwarding any product to Orion. 

. . · 

Models 128, 130, and 135 Conductivity Meters 

Chapter VII 

NoHceofCompHance 

WARNING: This meter may radiate radio frequency energy and if 

not installed and used properly, that is in strict accordance with the 

manufacturer's instructions, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A 

computing device pursuant to Subpart J of Part 15 of FCC Rules, which 

are designed to provide reasonable protection against such interference 

in a commercial environment. Operation of the meter in a residential area 

may cause interference in which case the user at his own expense will be 

required to take whatever measures may be required to correct the 

interference. 

Note: To meet or exceed FCC regulations the 

AT/ Orion-supplied line converters must be used. 

This digital apparatus does not exceed the Class A limits for radio noise 

emissions from digital apparatus set out in the Radio Interference 

Regulations of the Canadian Department of Communications. 

Le present appareil numerique n' emet pas de bruits radioelectriques 

depassant les lirnites applicables aux appareils numeriques (de la class A) 

prescrites dans le Reglement sur le brouillage radioelectrique edicte par le 

ministere des Communications du Canada." 

35 
Models 128, 130 and 135 Conductivity Meters 

36 

~. ~ -----

Chapter VIII 

Specifications 

Specifications 

MeasurennentModes 

Conductivity 

Cell Constant 

Reference Temperature 

Temperature 

Compensation 

Accuracy 

(at operating temperature 

-10 octo 55 °C) 

Tennperature 

Range 

Resolution 

Accuracy (instrument) 

(at operating temperature 

-10 octo +55 °C) 

Display 

Operating elements 

Inputs 

Models 128, 130, and 135 Conductivity Meters 

Model128 

Range: 

0.0 to 199.9 ]1.S cm-1 

0 to 1999 Jl.S cm-1 

0.00 to 19.99 mS cm-1 

0.0 to 199.9 mS cm-1 

0.475 cm-1 fixed 

25 oc fixed 

Resolution: 

0.1 ]1.S cm-1 

1 Jl.S cm-1 

0.01 mS cm-1 

0.1 mS cm-1 

Compensation of natural water (nLF) 

± 0.5% of measurement value± 1 digit 

for sample temperature 0 octo 35 °C. 

-5 octo +99.9 oc 

0.1 oc 

± 0.1 oc ± 1 digit 

LCD matrix multi-message display height: 

35 x 60mm 

2 selector switches 

8-pin DIN plug, IP67 

37 
Models 128, 130 and 135 Conductivity Meters 

Specifications 

Environmental Conditions 

J\nnbienttemperature 

Relative humidity 

EMC, Safety, and Protection 

Power Supply 

Operation Time 

Housing 

Dimensions I Weight 

38 

Model128 

operation: 

storage: 

yearly mean: 

30 days/year: 

other days: 

-25 octo +65 oc 

<80% 

< 100% 

>90% 

FCC part 15 Subpart B, Limit class A 

EN 50081-1 

EN 50082-2 

CE 

IEC 1010 I class 3 

IEC 529 

IP66 

4 x 1.5 V batteries, Type AA 

1000 - 3000 operating hours with 

alkali/manganese batteries 

Energy reduction by automatic switch-off 

after approximately 3 hours 

172 x 80 x 37 rom I approx. 0.3 kg: 

Specifications 

Measurement Modes 

Conductivity 

Accuracy: 

Salinity 

Range: 

Resolution: 

Accuracy: 

Models 128, 130, and 135 Conductivity Meters 

Model130 and 135 

Range: 

0.0 to 199.9 pS cm-1 

0 to 1999 pS cm-1 

0.00 to 19.99 mS cm-1 

0.0 to 199.9 mS cm-1 

0 to 500 mS cm-1 

Resolution: 

0.1 pS cm-1 

1 pS cm-1 

0.01 mS cm-1 

0.1 mS cm-1 

1 mS cm-1 

Additional measurement range 

with cell constant 0.1 cm-1 

Range: 

0.00 to 19.99 pS cm-1 

Resolution: 

0.01 pS cm-1 

± 0.5% of measurement value± 1 digit at 

operating temperature -10 octo +55 oc 

0.0 to 70.0 

0.1 

after adjustment (via cell constant) to 35.0: 

1. ± 0.1 in the range 0.0 to 42.0 at test sample 

temperature 5 oc to 25 oc 

2. ± 0.2 in the range 0.0 to 42.0 at test sample 

temperature 0 oc to 5 oc 

3. better than 3% of measurement value in the 

range 42.0 to 70.0 

39 
Models 128, 130 and 135 Conductivity Meters 

Specifications 

TDS 

Range: 

Resolution: 

Accuracy: 

Temperature 

Range: 

Resolution: 

Accuracy: 

Cell Constant 

Model130 and 135 

0 to 1999 mg/1 

1 mg/1 

± 2% ± 1 digit at test sample temperature 

15 oc to 35 oc. 

Factor adjustable between 0.40 and 1.00. 

-5 to 99.9 oc 

0.1 oc 

0.1 oc ± 1 digit at operating temperature 

-10 octo +55 oc 

Setting ranges: 0.1 and 0.475 cm-1 fixed 

0.45 to 1.30 cm-1 adjustable 

Reference tempera~re 20 oc or 25 oc selectable 

Temperature 

compensation 

40 

automatically, 3 modes, selectable: 

1. Linear compensation (Lin), coefficient 

adjustable between 0.5%/°C and 3.00%/°C 

in the range of -5 to 90 °C. 

2. Compensation of natural water (nLF). 

Ultra pure water function for neutral water; 

coefficient fix. 

3. No Compensation 

- --- . -~ ' -

Specifications 

Accuracy: 

Data storage 

Display 

Keyboard 

Inputs 

Conductivity Cell 

Charging socket 

Models 128, 130, and 135 Conductivity Meters 

Model130 and 135 

1. Linear compensation (Lin): 

0.5% of measurement value± 1 digit for 

• TC: = 0.5 to 2.5%!°C and test sample 

temperature +5 octo 75 oc and 

• TC: = 2.5 to 3.00%/oC and test sample 

temperature 10 octo 75 oc. 

2. Non-linear compensation (nLF): 

0.5% of measurement value± 1 digit for 

test sample temperature 0 to 35 °C. 

3. No compensation 

0.5% of measurement val~e ± 1 digit for 

test sample temperature -5 octo +99.9 oc 

Ring memory 

Number of values: 50 pairs 

Output: 1. Display 

2. RS232-interface 

Data Protection: no time limit 

LCD matrix display 

height: 35 x 60 mm 

9 key elastomeric, waterproof 

8-pin DIN plug (IP67) 

2-pin socket with pin contacts for battery 

charger (IP67) 

Voltage: 12 V 

Current: 70 rnA 

41 
Models 128, 130 and 135 Conductivity Meters 

Specifications 

Outputs 

Digital interface 

RS232 (Modell35 only) 

Environmental Conditions 

J\nnbienttenaperature 

Relative hunaidity 

Model130 and 135 

4-pin socket with pin contacts for 

RS232 Conaputer Interface Cable 

Cat. No. 080033 or Printer Cable 

Cat. No. 080034 

serial interface, data output only 

Baud Rate: 4800 

Data bits: 8 

Stop bit: 1 

Parity: none 

Handshake: RTS/CTS 

Max. cable length: 15 na 

Output format: ASCII strings 

operation: 

storage: 

yearly naean: 

30 days/year: 

other days: 

-10 octo +55 oc 

-25 octo +65 oc 

<80% 

< 100% 

<90% 

EMC, Safety, and Protection 

42 

FCC part 15 Subpart B, Linait class A 

EN 50081-1 

EN 50082-2 

CE 

IEC 1010 I class 3 

IEC 529 

IP66 

Specifications 

Power supply 

Type of Line Adapter 

Operation time 

Data storage when 

changing batteries 

Housing 

Dimensions I Weight 

Models 128, 130, and 135 Conductivity Meters 

Model130 and 135 

4 x 1.5 V Alkaline non rechargeable batteries, 

TypeAA (Model130) 

4 x 1.2 V NiCd, Type AA rechargeable 

batteries(Model 135) 

110VAC 

Cat. No. 080020 (ref: Friwo FW 1199/ 

11.7880, Part No. 1794043) 

220VAC 

Cat. No. 080021 (ref: Friwo FW 1199/ 

11.7864, Part No. 1762613) 

500 - 2500 operating hour with alkali/ 

naanganese batteries (Models 128 and 130) 

or 150- 800 operating hours with NiCd 

rechargeable batteries (Model 135) 

Energy reduction by autonaatic switch-off 

after approxinaately 1 hour. 

Settings and naeasurenaent values renaain 

stored. Operation naode at startup: 

conductivity naeasurenaent. 

172 x 80 x 37 mna I approxinaately 0.3 kg 

NOTE: The above specifications apply to the meter only. 

The actual system performance specifications depend on cell and 

sample condititions as well. 

43 
Models 128, 130 and 135 Conductivity Meters 

44 

--- -

' • <": .. ~ 

Models 128, 130, and 135 Conductivity Meters 

Chapter IX 

Ordering Information 

Meters 

012800 

012802 

013000 

013002 

013500 

Meter Kit, Model128, Includes Meter, 013010 Cell, 

Field Case, Beaker, 010030 Electrode Holder, 011006 

Conductivity fTDS Standard ( 60 mL), 011007 Conductivity I 

IDS Standard (60 mL), Instruction Manual. 

Meter Kit without Cell, Model128, Includes Meter, 

Field Case, Beaker, 010030 Electrode Holder, 011006 

ConductivityfTDS Standard (60 mL), 011007 Conductivity/ 

IDS Standard (60 mL), Instruction Manual. 

Order Cell separately. 

Meter Kit, Model130, Includes Meter, 013010 Cell, 

Field Case, Beaker, 010030 Electrode Holder, 011006 

ConductivityfTDS Standard (60 mL), 011007 Conductivity/ 

IDS Standard (60 mL), Instruction Manual. 

Meter Kit without Cell, Model130, Includes Meter, 

Field Case, Beaker, 010030 Electrode Holder, 011006 

ConductivityfTDS Standard (60 mL), 011007 Conductivity/ 

IDS Standard (60 mL), Instruction Manual 

Order Cell separately. 

Meter Kit, Model135,110 V, Includes Meter, 013010 Cell, 

Field Case, Line Adapter, Beaker, 010030 Electrode Holder, 

011006 Conductivity fTDS Standard ( 60 mL), 011007 

ConductivityfTDS Standard (60 mL), Instruction Manual. 

45 
Models 128, 130 and 135 Conductivity Meters 

Meters 

013501 

013502 

C lis 

013010 

013030 

013060 

lcn3016 

013020 

013018 

46 

Meter Kit, Model135, 220 V, Includes Meter, 013010 Cell, 

Field Case, Line Adapter, Beaker, 010030 Electrode Holder, 

011006 ConductivityffDS Standard (60 mL), 01100 7 

ConductivityffDS Standard (60 mL), Instruction Manual. 

Meter Kit, Model 135 ,without Cell or Line Adapter, 

Includes Meter, 013010 Cell, Field Case, Beaker, 010030 

Electrode Holder, 011006 ConductivityffDS 

Standard (60 mL), 011007 ConductivityffDS Standard 

(60 mL), Instruction Manual. Order Cell and Line Adapter 

separately. 

Conductivity Cell, 3m Cable, K = 0.475 cm-1 

Conductivity Cell, lOrn Cable, K= 0.475 cm-1 

Conductivity Cell, 20m Cable, K = 0.475 cm-1 

Conductivity Cell, Ultra pure Water, Stainless Steel, 

K = 0.1 cm-1. Includes Flow-Through Cell 013017. 

Conductivity Cell, Glass/Platinum, 4 electrode, K = 1.0 cm-1 

Conductivity Cell, Epoxy/Graphite, 4 electrode, 

Flow-Through, K= 0.8 cm-1 

I 

L 

I 

I 

I ' 

Models 128, 130, and 135 Conductivity Meters 

Other Accessories 

011006 

011007 

011008 

010030 

013025 

013017 

080050 

080051 

080052 

080053 

013044 

080044 

080020 

080021 

080033 

080034 

Conductivity !IDS Standard, 12.9 }lS/cm (O.lM KCl), 5 x 60 mL 

Conductivity!TDS Standard, 1413 JtS/cm (0.01M KCI), 5 x 60 mL 

ConductivityffDS Standard, 100 }lSicm, 5 x 60 mL 

Electrode Holder, for use with Field Case. 

Cable, 8 pin DIN to 7 pin DIN for use with 013018 and 

014018 Cells. 

Flow-Thru Cell, Glass, for use with 013016 and 014016 Cells 

Field Case 

Armored Rubber Case 

Armored Rubber Case, Handles 

Meter Holder, Quiver, Strap 

Protective Sleeve, Stainless Steel, for use with 013010, 

013030,013060 

Protective Probe Sleeve, Plastic, for use with 013010, 

0 13030' 013060 

Line Adapter, 110V, for use with Models 135, 835, 265. 

Line Adapter, 220V, for use with Models 135,835,265. 

Cable, computer interface RS232, 9/25 Adapter, for use with 

Models 135,835,265. 

Cable, Printer, for use with Models 135,835,265, printers 

PRT300 and PTR30 1. 

47 
Models 128, 130 and 135 Conductivity Meters 

Other Accessories 

PRT300 Printer, Ink-Based, llOV. Requires cable listed above. 

PRT30l · Printer, Ink-Based, 220V. Requires cable listed above. 

48 

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