Perma Pure Modular Board - Manual (Page 4)

The display will display temperature constantly when impinger
temperature is below the user set ‘Ready’ temperature and no other faults
are present. The fault would be a ‘TC Failure’ indicating an open
thermocouple sensor.
The display will blink the temperature when impinger temperature is
above the user set ‘Ready’ temperature and no other faults are present.
The display switches every second between blank and the temperature, in
this condition.
If a ‘TC Failure’ is detected the display will switch between showing
blank and the letters “tcF”.
Detailed LED Description
The 2
nd
frozen impinger does not have any LED indication
Dual Channel Cooler
Basic Display Description
3 digit plus sign temperature display
Temperature is displayed in tenths of °C
Green LED indicate 1 channel displayed
Green LED indicate 2 channel displayed
Detailed Display Description
The digital display shows both temperature and status of the cooler.
The display can be set to constantly switch between the two channels or to
work with an external dry contact to select channel to be displayed.
The display functions the same for both channels.
The display will display temperature constantly when impinger
temperature is below the user set ‘Ready’ temperature and no other faults
are present. One fault is the ‘Water Slip’, the sensing of liquid water
downstream of the sensor, though the use of a water slip sensor. The other
fault would be a ‘TC Failure’ indicating an open thermocouple sensor.
The display will blink the temperature when impinger temperature is
above the user set ‘Ready’ temperature and no other faults are present.
The display switches every second between blank and the temperature, in
this condition.
If a ‘Water Slip’ failure is detected the display will switch between
showing the measured temperature and a symbolic “SLP”. The display
switches every second between “SLP” and the temperature.
If a ‘TC Failure’ is detected the display will switch between showing
blank and the letters “tcF”.