Conair Thermolator TW-P User Manual

Troubleshooting I 6-13
6
Troubleshooting
Controller Alarms
When an alarm occurs, the Thermolator has detected a problem with the process. Without correction, the
TCU will not be able to produce process fluid of the correct temperature. Under certain conditions, an
alarm could lead to equipment damage or personal injury if it is not corrected.
• The controller displays an error code indicating the cause of the problem.
• If the optional alarm package is installed, the Fault strobe will illuminate and the audible alarm will
activate.
Alarm Possible Cause Solution
F 8
8  8
Low Flow
The optional flowmeter has
detected flow below the user-
configured low flow limit.
u “FLL” is displayed in the
setpoint display.
u Pump continues to run nor-
mally.
u Heater continues to run
normally.
u Cooling valve continues to
run normally.
u Alarm LED, optional strobe,
sounder, dry contacs are all
not actuated.
This alarm will automatically
reset once flow is above the low
flow limit.
Is a valve closed in the process
loop?
Is there some kind of blockage in
the process loop?
Examine the process loop and look
for blockages, closed valves, etc.
Did the process loop change in
length or configuration that now
provides more flow resistance to
the pump?
Is the user-configured low-flow
limit set too high?
Modify the Flowmeter Alarm
Threshold by decreasing parameter
F.
Modify the Flowmeter Alarm
Threshold by decreasing parameter
F.

Conair Thermolator TW-P Specifications

General

Brand	Conair
Model	Thermolator TW-P
Category	Temperature Controller
Language	English