PolyScience Refrigerated Recirculating Chillers Operator's Manual page 23

Message
Description
Code
01
Factory Reserved
02
Low limit temperature alarm
03
High limit temperature alarm
Over-temperature protection
04
alarm
Low liquid level alarm
05
(select models only)
06
High bath temperature alarm
07
Low flow alarm
08
High pressure alarm
09
System fault
Electronic power component fault
10
(Triac)
11
Internal probe fault
External temperature probe fault
12
(select models only)
None.
Alarm — Process fluid temperature has dropped to
low temperature limit value. Compressor, heater, fan,
and pump turned off.
Increase heat load on Chiller or decrease low
temperature limit value.
Alarm — Process fluid temperature has reached high
temperature limit value. Compressor, heater, fan, and
pump turned off.
Decrease heat load on Chiller or increase high
temperature limit value.
Alarm — Process fluid temperature is above Chiller's
factory set high temperature safety cutoff. Power to
compressor, heater, and fan turned off; pump remains
on.
Lower process temperature.
Delayed Alarm — Activated when the liquid level in
the reservoir falls below an acceptable level for 30
seconds of longer. Compressor, heater, fan, and
pump turned off.
Add fluid to reservoir.
Alarm — Fluid temperature has exceeded 82° C
(180° F). Compressor, heater, fan, and pump turned
off.
Lower fluid temperature.
Alarm — Flow rate has dropped below minimum flow
rate setting. Power to compressor, heater, fan, and
pump turned off. Note: Disabled during first 2 minutes
of operation.
Correct cause of low flow rate or decrease minimum
flow rate setting.
Delayed Alarm — Activated when fluid outlet pressure
has exceeded high-pressure limit value for 30
seconds. Compressor, heater, fan, and pump turned
off.
Decrease outlet pressure by removing blockage or
increase high-pressure limit value.
Fault — Power to compressor, heater, fan, and pump
turned off. Contact service representative for
corrective action.
Fault — Power to compressor, heater, fan, and pump
turned off. Contact supplier.
Fault — Faulty temperature probe. Power to
compressor, heater, fan, and pump turned off.
Contact supplier.
Fault — Faulty external temperature probe. Power to
compressor, heater, fan, and pump turned off.
Replace ambient tracking probe or operate instrument
using internal temperature probe. Contact supplier if
fault persists.
23
Action Required