User Guide

CALIBRATION PROCEDURE OF

HI8931 & HI8936 WITH HI7635

Material needed

• HI7635 conductivity probe

• HI 8931 conductivity controller

• HI8936 conductivity transmitter

• A 20 mA f.s. ammeter (for transmitters without LCD)

• A reference conductivity meter with automatic temperature com-

pensation accurately calibrated (e.g. HI8733).

PROCEDURE

• Connect the HI7635 probe to the HI8936 transmitter (see page

23).

• Connect the HI8936 transmitter to the HI8931 controller (see

page 24).

• Connect the HI8931 controller to the mains (see page 24).

Before proceeding with the calibration,

make sure that the meter is in measure-

ment mode (MEASURE LED will be lit)

and not in set mode.

• Connect the ammeter to the HI8936 transmitter to monitor the

signal current (see the following picture).

MEA

SURE