Sulzer ABS CA 461 Guia De Instalacion página 5

Leakage relay type ABS CA 461, Installation guide
1
FUNCTION AND USAGE
CA 461 is a standalone leakage detection relay for DIN rail mount.
1.1 Function
In case of water leakage, the resistance between the sensor electrode and
housing will decrease. If the resistance becomes lower then 100k ohms
(±10 %), the relay goes active and contact on terminal 5 and 6 are closed.
The signal has to be stable for 10 seconds before the relay is activated.
Connect terminal 3
to ground or housing
of the pump.
Terminal Description
1 Power supply (0 V or N)
Power supply (+24 VDC or L1)
2
3 Ground / Pump chassis
4 Input(s) from pump probe(s)/anode(s)
5 Relay contact
6 Relay contact (NO)
35 mm
(1,38)
3
Power Supply
CA 461
3 4 5 6
Input
Leakage
108 mm
(4,25)
Output
EN