User Guide

8. Additional Information

The controller allows you to set High and Low alarms that

switch on or off relays, and activating or deactivating devices

linked to the controller. In cases where the Conductivity values

fluctuate close to the high or low setpoints, the relays will

continuously switch on/off very quickly and may cause

problems to the linked devices. The hysteresis band allows you

to set an allowable range of fluctuations to prevent the relays

from activating and deactivating too quickly. See below.

It is not possible to set the high set point lower than the low set

point and vice versa (taking the hysteresis band into

consideration). For example, when the high set point is 8.50

mS and the high hysteresis band is set at 0.40 mS, then the

low setpoint cannot be set at higher than 8.50 - ½ Hi HYS.

NOTE : The shaded area indicates the hysteresis band.

Hys

Hysteresis Band

Set

Cond.

ctual