20
EN 5675-L
10�1 Seal monitoring
XFP pumps are supplied as standard with a leakage sensor (DI), to detect and alert to the ingress of water into
the motor and seal chambers (PE1 & PE2), motor (PE3, 50 Hz), or motor and inspection chambers (PE3, 60
Hz).
DI module and connect this in accordance with the circuit diagram below.
Input
Leakage
Power supply
Connect terminal 3
to ground or housing
of the pump.
Output
3 4 5 6
CA 461
Sulzer leakage control type CA 461
Electronicamplierfor50/60Hz
110 - 230 V AC (CSA). Part No.: 61240210.
ATTENTION Maximum relay contact loading: 2 Ampere
ATTENTION It is very important to note that with the connection example above it is not possible
to identify which sensor/alarm is being activated. As an alternative Sulzer highly
recommends to use a separate CA 461 module for each sensor/input, to allow not
only identication but also to prompt to the appropriate response to the alarm
category/severity.
Multiple-input leakage control modules are also available. Please consult with your local Sulzer representative.
ATTENTION If the leakage sensor (DI) is activated the unit must be immediately taken out of
service. Please contact your Sulzer service centre.
10�2 Temperature monitoring
Thermal sensors in the stator windings protect the motor from overheating.
thermistor (in accordance with DIN 44082). PTC relays for use in control panels must also be in accordance
with this standard.
NOTE: Running the pump with the thermal and/or leakage sensors disconnected will
invalidate related warranty claims.
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