Xylem IM205 Vortex Series - Manual (Page 19)

Vortex Installation, Operation and Maintenance Manual 17
Seal Fail and High Temperature
VI. Seal Fail and High Temperature
Seal Fail
As a safeguard against water ingress into the motor, the pump is equipped with a water
detector.
The water detector detects water which might have entered the oil housing or motor
housing due to seal failure or cable damage.
The water detector, when connected to a seal fail circuit, alarms of water intrusion.
The probe itself is a non-active electrode, placed in oil and motor housing. It is used in
conjunction with a relay in the control circuit that measures the resistance between probe
and frame.
If only air or oil is present, the resistance is over 33,000 Ohm. If water enters, the resistance
will decrease to as low as 300 to 500 Ohm. We advise to use CentriPro seal fail relay. This
relay switches at 33,000 Ohms. See panel options in CentriPro catalog.
High Temperature
The pump is equipped with high temperature. The normal resistance of the
high temperature thermoswitch is 0-5 ohms. Leads on the cable (4 and 5
(see page 11)) should read "closed contact". Contacts will give open reading
in high temperature situation (125º – 140º C). High temperature will close
once motor temperature is normal (95º – 110º C).
Hazardous pressure can
cause personal injury or
property damage.
CAUTION