Determining Temperature Controller Errors Or Sensor Errors - AEC AD Series Operation And Installation Manual

Determining Temperature Controller Errors or Sensor Errors

Using a Thermocouple
Using a Platinum Resistance Thermometer
Other service problems or questions can be answered by contacting
Page 66
If the controller displays a temperature that is close to room
temperature (70ºF/21ºC) when you short-circuit controller input
terminals, the controller is normal and the sensor is probably
broken, short-circuited, or incorrectly wired.
If the controller displays a temperature of about 0.0°C (32ºF) when
you insert a 100-ohm resistor between terminals
controller, and you short-circuit controller terminals
, the controller is normal and the sensor is probably broken,
–B
short-circuited, or incorrectly wired.
the AEC Service Department.
and
A –B
and
+B
AD Series Dehumidifying Dryers
of the