Xylem 3101 User Manual

Global Water

800-876-1172 • globalw.com

Global Water

Instrumentation, Inc.

11390 Amalgam Way

Gold River, CA 95670

T: 800-876-1172

Int’l: [phone], F: [phone]

PRODUCT NAME: 3101 Conductivity Controller

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Global Water

800-876-1172 • globalw.com

Global Water’s Conductivity Controllers are high performance digital indicating, dual set
point, ON/OFF controllers for conductivity, that use a temperature compensated
conductivity probe. The Conductivity Controllers have a K=1.0 cell constant conductivity
probe with a front panel cell adjustment potentiometer. The conductivity controller
features an analog voltage output of 1 mV/LSD for recorders, printers, computer
interfacing peripherals, etc. The conductivity controller’s display is a large 0.56” high
efficiency bright red LED.

Table of Contents

I) Inspection................................................................................................................ 3

II) General Introduction............................................................................................... 3

III) Mounting Procedure................................................................................................ 4

IV) Rear Panel Connection Diagram Refer to Drawing................................................ 5

V) Earth Ground........................................................................................................... 5

VI) Measurement range select....................................................................................... 6

VII) Analog Voltage Output........................................................................................... 7

VIII) Controller Set.......................................................................................................... 8

IX) Controller relay output format................................................................................8

XI) Temperature compensation..................................................................................... 9

XII) Temperature compensation thermistor ................................................................... 9

XIII) Cell constant.......................................................................................................... 10

XIV) Calibration using standard solutions..................................................................... 10

XVI) Conductivity measurement ................................................................................... 10

XVII) Trouble Shooting .................................................................................................. 11

XVIII) Warranty ............................................................................................................... 11

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Global Water

800-876-1172 • globalw.com

I) Inspection

a) Your 3101 Conductivity Controller unit was carefully inspected and certified by

our Quality Assurance Team before shipping. If any damage has occurred during
shipping, please notify Global Water Instrumentation, Inc. and file a claim with
the carrier involved.

II) General Introduction

a) The model 3101 is a high performance industrial grade digital indicating dual set

point ON/OFF controller for conductivity, using the Global Water temperature
compensated conductivity probe Cat. No.105.

The overall conductivity indication and control range for the model 3101 is 0 to
200mS/cm. The following four different ranges can be selected via internal DIP
switch:

0 to 999 µS/cm
0 to 9.99 mS/cm
0 to 99.9 mS/cm
0 to 200 mS/cm

A linearized 1 mV per LSD, least significant digit, is provided to interface with
other instruments with analog input such as recorder, printer, etc.

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Global Water

800-876-1172 • globalw.com

III) Mounting Procedure

a) Make a cutout on any panel, with a thickness of 1/16 in. (1.5mm) to 3/8 in. (9.5

mm). Refer to Drawing 1.

b) Rem ove the mounting brackets assembly from the panel meter and insert the

panel meter into the cutout. Refer to Drawing 2.

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