Model 6517B Electrometer Reference Manual
Section 15: Calibration procedure
6517B-901-01 Rev. C / August 2015
15-13
Humidity calibration
To calibrate humidity measurements:
1. Connect the DC voltage calibrator to the humidity input connector.
2. Apply 0.0 V.
:CAL:PROT:HUMZERO
3. Apply +1.0 V.
:CAL:PROT:HUM1 <actual voltage value>
Temperature calibration
To calibrate temperature measurements:
1. Connect the thermocouple calibrator to the temperature input connector using a type K input
connector. Allow the input connector to stabilize in temperature for five minutes.
2. Set the calibrator to 100° C and then send the following command to cal100° C
(4.096 mV):
:CAL:PROT:T100
0.004096
3. Set the calibrator to 0° C and then send the following command to calibrate 0° C:
:CAL:PROT:TZERO
4. Set the calibrator to -25° C and then send the following command to calibrate -25° C (-0.968 mV):
:CAL:PROT:TN25
-0.000968
Set calibration dates
To set the calibration dates:
1. Use the following command to set the date the unit was calibrated:
:CAL:PROT:DATE
yyyy,mm,dd
2. Use the following command to set the due date for the next calibration:
:CAL:PROT:NDUE
yyyy,mm,dd
Save calibration
To save the calibration information:
1. Use the following command to save the calibration after completing all calibration steps:
:CAL:PROT:SAVE
Lock calibration
To prevent changes to the calibration information:
1. Use the following command to lock the calibration after saving the calibration:
:CAL:PROT:LOCK
