Keithley 3700A Series Reference Manual

Appendix B: Verification and adjustment Series 3700A System Switch/Multimeter Reference Manual
B-14 3700AS-901-01 Rev. D/June 2018
Figure 165: Frequency verification
Frequency verification data
Use the following values to verify the performance of the Series 3700A. Actual values depend on
published specifications (see Example reading limit calculation (on page B-3)).
Connect the Keysight 33220A Generator
Description
Range (V)
Frequency (Hz)
Lower limit (Hz)
Upper limit (Hz)
Verify frequency 1 kHz
1.00E+01
1.00E+03
9.999167E+02
1.000083E+03
Verify frequency 10 kHz
1.00E+01
1.00E+04
9.999167E+03
1.000083E+04
Verify frequency 100 kHz
1.00E+01
1.00E+05
9.999167E+04
1.000083E+05
Verify frequency 250 kHz
1.00E+01
2.50E+05
2.499797E+05
2.500203E+05
Verify frequency 500 kHz
1.00E+01
5.00E+05
4.999597E+05
5.000403E+05
Verifying 4-wire resistance
Check the normal resistance function by connecting accurate resistance values to the Series 3700A
analog backplane connector and verifying that the displayed readings fall within specified limits.
Do not exceed 300 V
PEAK
between INPUT HI and INPUT LO because instrument damage may
occur.
To verify 4-wire resistance accuracy:
1. Using shielded, Teflon-insulated or equivalent cables in a 4-wire configuration, connect the Series
3700A INPUT and SENSE pins to the calibrator as shown for 100 Ω to 10 MΩ ranges.
2. Set the calibrator for 4-wire resistance with external sense on.
3. Select the Series 3700A 4-wire resistance function.
4. Select the SLOW integration rate with the RATE key.
5. Set the Series 3700A for the 100 Ω range, and make sure the FILTER is on. Enable OC+ (offset-
compensated ohms). Use OC+ for 100 Ω and 1 kΩ range verification only. See Enable or disable
offset-compensated ohms (on page 4-67) in the User's manual.
6. Recalculate reading limits based on actual calibrator resistance values.

Keithley 3700A Series Specifications

General

Brand	Keithley
Model	3700A Series
Category	Multimeter
Language	English