Perma Pure eCOOL 5000 Series - Manual (Page 20)

Section J: Troubleshooting 20
K: T
ROUBLESHOOTING
Alarm Message Symptom Action(s)
Thermocouple
Failure Channel # Thermocouple is failing or
disconnected Ensure proper connection to TB6 for Channel 1, TB7 for
Channel 2.
Replace K-type thermocouple.
Water Slip Alarm Water has slipped passed the
thermo-electric cooler and tripped
the water slip sensor. Ensure system loading (gas flow and water %) does not
exceed cooler capacity.
Verify that the cooler last impinger is holding a constant
temperature near 5°C.
If a dry sensor still trips the alarm, clean the sensor or
replace if necessary.
Overtemp Alarm Cooler channel does not maintain a
temperature below 10 degrees C. Verify that the system loading (gas flow and water %) does
not exceed the cooler capacity.
Verify that each Peltier element is drawing approximately 6
Amps. Replace the Peltier element if the current draw is
low.
Calibrate the temperature inputs using a thermocouple
simulator.
Probe Overtemp
Alarm Probe temperature has exceeded
the Max Set temperature for the
probe. Max temp is set too low. Adjust accordingly.
Inlet gas sample temp is too high. Consider installing a
cooling spool piece before the probe.
Inspect for wiring problem that is not allowing the controller
to properly maintain temperature.
Probe Undertemp
Alarm Probe temperature is below the
Minimum Set temperature for the
probe. Minimum set temperature is too low. Adjust accordingly.
On initial startup, the Heated Probe was initially below the
minimum temp, but now is above minimum. Press reset to
clear the alarm.
The isolated power source for the heater is disconnected
or off.
The heater is failing, causing the probe to not hold
temperature.
Inspect for wiring problem that is not allowing the controller
to properly maintain temperature.
Heated Line
Overtemp Alarm Heated Line temperature has
exceeded the Max Set temperature
for the line. Max set temperature is too low. Adjust accordingly.
Inlet gas sample temp is too high. Consider installing a
gas cooling spool piece before the probe.
Inspect for wiring problem that is not allowing the controller
to properly maintain temperature.
Heated line under
temperature alarm Heated Line temperature is below
the Minimum Set temperature for
the line. Min set temperature is too low. Adjust accordingly.
On initial startup, the Heated Line was initially below the
minimum temp, but now is above minimum. Press reset to
clear the alarm.
The heater is failing causing the Heated Line to not hold
temperature.
The isolated power source for the heater is disconnected
or off.
Inspect for wiring problem that is not allowing the controller
to properly maintain temperature.