DIFFERENTIAL PRESSURE SWITCH
Technical Notice
FI 72.0226.1016E
Page 4 sur 10
FRONT PANEL DESCRIPTION:
TO ADJUST SET POINTS:
Different thresholds adjustment:
- Press the “SELECT” key until the yellow led comes on in front of the wanted threshold. Display the value you
want with the “+” and “-“ keys.
- Come back to the pressure reading mode by “SELECT”. Each threshold is stored in a memory every time it’s
adjusted.
NB. After 30 seconds of inactivity, automatic comeback in the pressure reading mode.
Xk1 relay running:
If the pressure is higher than Xk1 threshold, Xk1 relay is supplied (contact between 11 and 14) and Xk1 red led is
switched off.
If the pressure is lower than Xk1 threshold, the relay is no longer supplied (contact between 11 and 12) and Xk1
red led is switched on.
Note: Xk1 relay response time 5 seconds, Xk1 relay is supplied if the threshold adjustment is on 000.
Xk2 relay running:
If the pressure is higher than Xk2 threshold, Xk2 relay is supplied (contact between 21 and 24) and Xk2 red led is
switched off.
If the pressure is lower than Xk2 threshold, the relay is no longer supplied (contact between 21 and 22) and Xk2
red led is switched on.
Note: Xk2 relay response time 5/100 seconds, Xk1 relay is supplied if the threshold adjustment is on 000.
SUPPLY VOLTAGE
