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Model 6517B Electrometer Reference Manual
20 pA to 200 pA range voltage offset
To calibrate the voltage offset for each range:
1. Set the DMM range to 1 V DC, with an integration rate of 10 NPLC with a repeating filter count of
10. Connect a 10 G resistor between the Model 6517B input HI and input LO.
:CAL:PROT:VOFF:STEP 1
:CAL:PROT:VOFFSETZ2.
2. Allow the input to settle for 120 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFFZERO <dmm voltage reading>
3. Connect a 1 G resistor between the Model 6517B input HI and input LO.
:CAL:PROT:VOFF1
4. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF2 <dmm voltage reading>
:CAL:PROT:VOFF3
5. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF4 <dmm voltage reading>
2 nA to 200 nA range voltage offset
To calibrate the voltage offset for each range:
1. Connect a 10 M resistor between the Model 6517B input HI and input LO. Set the DMM range
to 1 VDC.
:CAL:PROT:VOFF:STEP 2
:CAL:PROT:VOFFSETZ
2. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFFZERO <dmm voltage reading>
3. Connect a 1 M resistor between the Model 6517B input HI and input LO.
:CAL:PROT:VOFF1
4. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF2 <dmm voltage reading>
:CAL:PROT:VOFF3
5. Allow the input to settle for 10 seconds, then take the DMM voltage reading.
:CAL:PROT:VOFF4 <dmm voltage reading>
6517B-901-01 Rev. C / August 2015
Section 15: Calibration procedure
15-3
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