User Guide

Conductivity probe connection

• Attach the conductivity probe (HI7632/D or HI3003/D) to the DIN

socket located on the bottom of the controller. Align the guide on the

connector with the socket, push-in the connector and tighten the

retainer ring.

• The probe is provided with a built-in temperature sensor, which allows

automatic temperature compensation of the readings.

Level inputs connections

All level sensors must have a contact type output.

If the water level is above the sensor position, the corresponding contact

is closed. If the water is below the sensor, the contact is open.

Each sensor will be connected between the INPUT COMMON (pin 9) and

the corresponding input pin (LOW LEVEL, NORM LEVEL, HIGH/ALARM

LEVEL).

• If the matching pin is used, connect

the matching pin terminal to the con-

nector pin 2 located on the right panel.

• Immerse the matching pin near the pH electrode.