Cole Parmer PolyStat CC1080, Руководство пользователя

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12.4 Undefined fault
This can be caused by a fault which only occurs for a short period of time, i.e.
with a fluctuating bath fluid level when the filling level is very close to mini -
mum.
Before returning the unit, top it up with liquid. This can eliminate the fault.
In all other cases the unit must be checked by a qualified technician.
12.5 Fault eliminated?
After the fault has been eliminated, the cause of the fault is shown on the
display
6 (e.g. ). The preceding three zeros mean that the fault has
been eliminated.
The reset key 2 must be pressed in order to restart the unit.
13. Testing the Safety Features
The safety feature for excess temperature protection must be checked at
regular intervals. The frequency level for checking depends on the unit’s
designated application and the heat transfer liquid used (inflammable or non–
inflammable). Normally, 6 to 12 times a year is sufficient.
13.1 Excess temperature protection
Set a cutoff temperature (see 10.1) that is lower than the desired set temper-
ature. Switch on the circulator and check to see if the circulator really does
switch itself off at the set cutoff temperature.
If not follow the procedure detailed in 10.1.1.
It may be necessary to have the unit checked by qualified technician.