Model 6517B Electrometer Reference Manual
Section 16: Verification procedure
6517B-901-01 Rev. C / August 2015
16-15
2 G
Ω
to 200 G
Ω
range verification
1. Connect the nominal 1 G
Ω
characterized resistor to the Model 6517B as shown in the figure in
2
T
Ω
to 200 T
Ω
range verification
(on page 16-15).
Standard resistors must be characterized to an uncertainty at least four times better than the
equivalent Model 6517B accuracy specifications. These resistors must be mounted in specially
shielded test fixtures to minimize noise. See the "Shielded fixture construction" figure for details on
test fixture construction.
2. Select the ohms function.
3. Place the voltage source in operate.
4. Select the 2 G
Ω
range on the Model 6517B.
5. Make sure that zero check is disabled and allow the reading to settle.
6. Verify that the displayed reading is within the calculated reading limits listed in the "Limits for
ohms verification" table.
7. Repeat steps 4 through 6 for the 20 G
Ω
and 200 G
Ω
ranges.
8. Turn off the voltage source, then disconnect the standard resistor from the Model 6517B.
2 T
Ω
to 200 T
Ω
range verification
1. Connect the nominal 1 T
Ω
characterized resistor to the Model 6517B as shown in the figure
below.
Standard resistors must be characterized to an uncertainty at least four times better than the
equivalent Model 6517B accuracy specifications. These resistors must be mounted in specially
shielded test fixtures to minimize noise. See the "Shielded fixture construction" figure for details on
test fixture construction.
Hazardous voltage (400 V) is used in the following steps. Do not touch connecting cables or
test leads while the voltage source is in operate.
Содержание 6517B
Страница 136: ...Section 6 Test sequences Model 6517B Electrometer Reference Manual 6 8 6517B 901 01 Rev C August 2015...
Страница 180: ...Section 9 Filters and math Model 6517B Electrometer Reference Manual 9 4 6517B 901 01 Rev C August 2015...
Страница 492: ...In this appendix Information E 2 Appendix E IEEE 488 conformance...