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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 calibrate +100° 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

Keithley 6517B Reference Manual

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