Series 3700A System Switch/Multimeter Reference Manual
Appendix B: Verification and adjustment
3700AS-901-01 Rev. D/June 2018
B-9
Verifying DC current 10 µA to 100 µA ranges
Check DC current accuracy by applying accurate current from the DC current calibrator to the Series
3700A analog backplane connector and verifying that the displayed readings fall within specified
limits.
To verify DC current accuracy:
1. Set up the Series 3700A for DC current and the range being tested. Make sure relative offset is
disabled.
2. Verify the zero test point for each range without any connection to the equipment and verify that
the readings fall within specified limits.
3. Connect the Series 3700A AMPS and LO INPUT pins to the DC current calibrator as shown in
the "DC current verification 10 µA to 100 µA ranges diagram" below.
4. Set up the Keysight 3458A to the DC current function and range.
5. Set the calibrator to source zero current and rel both the Series 3700A and the Keysight 3458A.
6. Source DC current for each of the test points summarized in the
page B-6) table. For each setting, be sure that the reading is within stated limits.
Figure 160: DC current verification 10µA to 100µA ranges
