Calibration For P48
When re-calibration is required (generally every two years), this procedure should be performed by qualified technicians using appropriate equipment.
Equipment source accuracy of 0.03% or better is required.
The procedure consists of applying accurate voltage and current signals.
Allow a 30 minute warm-up period before starting this procedure.
This procedure may be aborted by disconnecting power to the controller before exiting the configuration mode. The existing calibration settings remain in effect.
Factory Service Operations (9-FS)
Display
CodE
CAL
Parameter
Enter factory service function code
Input calibration
Range
48
A1CL
A2CL n2CL
Main Linear DC Output calibration
Second Linear DC
Output calibration
Remote Setpoint
Calibration
Description/Comments
Calibrate Instrument yes/no Calibration for both voltage and current.
yes/no Model number dependent.
Calibrate either 10 V or 20 mA.
yes/no Model number dependent.
Calibrate either 10 V or 20 mA.
yes/no Model number dependent
Input Calibration
Connect voltage calibration source with an accuracy of 0.1% or better.
Display
StP1
StP2
StP3
Action
Apply 0.0 V
Apply 2.5 V
Apply 5.0 V
Description/ Comments
Wait 10 seconds press P.
Wait 10 seconds press P.
Wait 10 seconds press P.
StP4
StP5
Apply 7.5 V
Apply 10 V
Wait 10 seconds press P.
Wait 10 seconds press P.
Connect current calibration source with an accuracy of 0.1% or better.
StPA Apply 0 mA Wait 10 seconds press P.
StPB Apply 20 mA Wait 10 seconds press P.
Main or Second Linear DC Analog Output Calibration
1. Set the Linear DC Output jumper for the range to be calibrated. (See Linear
DC Analog Output Jumper Selection, page 12).
2. Connect a meter with an accuracy of 0.05% or better to output.
3. For each step, use the controller arrow keys to adjust the external meter display to match the parameter being calibrated. Press P when the output is correct, or if the parameter is not being calibrated.
Display
C 0V
Parameter
0 V Calibration
C 10V 10 V Calibration
C 0c 0 mA Calibration
C 20c 20 mA Calibration
External Meter
0.00
10.00
0.00
20.00
Action
Adjust if necessary, press P.
Adjust if necessary, press P.
Adjust if necessary, press P.
Adjust if necessary, press P.
Remote Setpoint Calibration
Connect DC mA source with an accuracy of 0.03% or better.
Display
StP1
StP2
StP3
StP4
StP5
Action
Apply 0 mA
Apply 5 mA
Apply 10 mA
Apply 15 mA
Apply 20 mA
Description/Comments
Wait 10 seconds, press P.
Wait 10 seconds, press P.
Wait 10 seconds, press P.
Wait 10 seconds, press P.
Wait 10 seconds, press P.
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