User Guide

• Place the low-level sensor to indicate the minimum water level for the

correct function of both the circulation and feeding pumps.

• Connect the sensor between INPUT COMMON and LOW LEVEL pins.

• Place the normal-level sensor to indicate the filling level when the tank

is full.

• Connect the sensor between INPUT COMMON and NORMAL LEVEL pins.

• Place the alarm-level sensor to limit the highest water level.

• Connect the sensor between INPUT COMMON and HIGH (ALARM) LEVEL

pins.

Note: The level sensors act correctly if the sensor switch is closed when the

water is above the corresponding level

Irrigation start connection

Connect the irrigation-start switch

between INPUT COMMON and IR-

RIGATION START pins.

Irrigation can be controlled by:

• using a switch connected between the INPUT COMMON and IRRIGA-

TION START: the irrigation is started by closing the switch, and lasts

until the contact is open.

• using a 5V-logic signal, connected to the IRRIGATION START and

referred to INPUT COMMON: the irrigation starts at level “0” (0V)

and stops at level “1” (5V).

• using a level sensor that will be open when the desired level is

reached: the controller will irrigate until the desired level is reached,

and the irrigation will restart if the water falls below this level.