Series 3700 System Switch/Multimeter Reference Manual
Section 10
:
Verification
Document Number: 3700S-901-01 Rev. A / August 2007
10-19
8. Source the nominal full-scale resistance values for the 100
-2k
ranges summarized in the
Dry circuit resistance verification table. Verify that the readings are within calculated limits.
Figure 10-9: Verifying four-wire resistance
Dry circuit resistance verification data
Use the following values to verify the performance of the Series 3700. Actual values are
dependent on published specifications (see
Calculating resistance reading limits
(on page 10-
3)).
Applied Resistance
Range
Current
Lower limit
Upper limit
Verify Dry Circuit 100 Ohm
1.00E+02
1.00E+02
9.01
1.02
Verify Dry Circuit 1k Ohm
1.00E+03
1.00E+03
9.02
1.03
Verify Dry Circuit 2k Ohm
2.00E+03
1.90E+03
1.03
1.03
Verifying 1-OHM and 10-OHM resistance ranges
Check the normal resistance function by connecting accurate resistance values to the Series
3700 analog backplane connector and verify that the displayed readings fall within specified
limits.
CAUTION
Do not exceed 300V peak between INPUT HI and INPUT LO because
instrument damage may occur.
To verify normal resistance accuracy:
1. Connect the 1
discrete resistor to the Series 3700 input.
2. For the dry circuit test points, enable the dry circuit resistance attribute (DRY+).