User Guide

27
OPERATING INFORMATION
The various parameters are set through the front panel keys and
trimmers.
When each key is pressed the corresponding LED is lit, indicating that
the function is operational.
Make sure that the conductivity meter, transmitter and probe are
calibrated before using the instrument for measurements (see page
30 & 34 for HI8931 & HI8936 and page 38 for HI 943500).
SET POINT
To set the working point of the controller, press the SET key. The
display will indicate the set value.
Use a small screwdriver to adjust
the trimmers COARSE and FINE
until the desired set value is
displayed.
Above set-point control operation
Leave the SET SELECT/COM connectors open.
The set contacts relay will close if the mea-
sured value is higher than the set-point
value and the SET ON LED will be lit.
COM
SET
SELECT