Cole Parmer POLYSTAT - Page 40

6-2
Section 6 Troubleshooting
Cole Palmer
Low Temperature
adjustable high temperature protection limit •
exceeded
check limit setting•
check uid selection•
Motor Fault
it can take over 10 minutes for the motor •
temperature to get low enough before the unit
can be restarted
MOL
Motor Overload
allow unit to cool down•
Open RTD1
Internal
open internal temperature sensor•
Open RTD2
External
open external temperature sensor•
Shorted RTD1
Internal
shorted internal temperature sensor•
Shorted RTD2
External
shorted external temperature sensor•
Bad Calibration
redo calibration•
High Temperature
adjustable high temperature protection limit •
exceeded
check limit setting•
check uid selection•
High Temperature
adjustable high temperature protection limit •
exceeded
check limit setting•
check uid selection•
Low Level
reservoir uid level too low for safe operation•
check uid level•
Low Temperature
adjustable low temperature protection limit •
exceeded
check limit setting•
check uid selection•
Warning Displays
The unit will continue to run with a warning. A warning also sounds the
alarm, if enabled.