Instruction manual

5958
E r ro r C o d e s
Display Problem Action
[ Err.H ] Open sensor Check sensor and wiring
Check type of sensor
Recalibrate
[ Err.L ] Reversed sensor Check sensor and wiring
Check type of sensor
Recalibrate
[ Err.O ] A/D error Return to factory
[ Err.J ] A/D error Return to factory
- - - - Display out-of-range Sensor over- or under-range
LoAd No control output Call factory
no
Recalibration
Your controller has been calibrated at the factory, and need
not be adjusted during the life of the controller unless sensor
type is changed from thermocouple to RTD, or vice versa. In
the event that recalibration is warranted, follow these
procedures.
1) Access menu level “05” as previously instructed and
select the sensor type.
2) Connect a calibrator with a range appropriate for the unit
to be calibrated. Allow the controller to warm up for a mini-
mum of 20 minutes. Set the range, and a low or zero value.
3) Access menu level “04” and then the Parameter/Access
key until [ CAL.L ] is displayed. Then, press the
Raise or Lower key until the number in
the controller’s upper (PV) display window matches the
indicated value of the calibration instrument.
4) Enter a value on the calibration instrument corresponding
with the high-end value of the sensor range (span).
5) Again, in menu level “04”, press the Parameter/Access
key until [ CAL.H ] is displayed. Then, press the
Raise or Lower key until the number in
the controller’s upper (PV) display window matches the
indicated value of the calibration instrument.
6) Repeat steps 3 through 5 until all readings agree.
7) Return the controller to regular operation by changing
back to menu level “00” or “01” (if desired) and pressing
the Mode key.
Only qualified indi-
viduals utilizing the
appropriate calibra-
tion equipment
should attempt
recalibration of
the controller. For
assistance, contact
your Athena repre-
sentative or call
1-800-782-6776.