Model 6517B Electrometer Reference Manual Section 15: Calibration procedure
6517B-901-01 Rev. C / August 2015 15-5
Voltage ranges voltage offset
To calibrate the voltage offset for each range:
1. Connect the DMM to the Model 6517B preamp output.
2. Set the DMM range to 1 V DC.
3. Connect the Model 6517B input HI to input LO (short the input).
4. Send:
:CAL:PROT:VOFF:STEP 5
:CAL:PROT:VOFF1
5. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF2 <dmm voltage reading>
:CAL:PROT:VOFF3
6. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF4 <dmm voltage reading>
Coulombs ranges voltage offset
To calibrate the voltage offset for each range:
1. Connect the DMM to the Model 6517B preamp output. Set the DMM range to 1 V DC. Place the
triaxial cap on the Model 6517B input.
:CAL:PROT:VOFF:STEP 6
:CAL:PROT:VOFF1
2. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF2 <dmm voltage reading>
:CAL:PROT:VOFF3
3. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF4 <dmm voltage reading>
Current offset calibration
The following three commands are automated and require extra time to complete:
:CAL:PROT:IOFF:STEP 3 takes approximately two minutes
:CAL:PROT:IOFF:STEP 4 takes approximately five minutes
:CAL:PROT:IOFF:STEP 5 takes approximately two minutes
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