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1-26
Performance Verification
Model 2701 Service Manual
2.
Install the Model 7700 in Slot 1 of the Model 2701, then turn on the power and allow
the unit to warm up for two hours before proceeding. Be sure the front panel INPUTS
switch is set to the REAR position.
3.
Set the calibrator for 4-wire resistance with external sense on.
4.
Select the Model 2701 4-wire resistance function by pressing the
Ω
4 key. Close
Channel 1 by pressing the CLOSE key and keying in 101.
5.
Set the Model 2701 for the 100
Ω
range and make sure the FILTER is on. Enable
OCOMP (offset-compensated ohms) for the 100
Ω
range test. (Press SHIFT then
OCOMP.)
6.
Recalculate reading limits based on actual calibrator resistance values.
7.
Source the nominal full-scale resistance values for the 100
Ω
-10M
Ω
ranges summarized
in
Table 1-13
and verify that the readings are within calculated limits.
Table 1-13
Limits for plug-in module resistance verification
Ω
Range
Nominal
resistance
Nominal reading limits
(1 year, 18°C to 28°C)
Recalculated limits**
100
Ω∗
1k
Ω
10k
Ω
100k
Ω
1M
Ω
10M
Ω
100M
Ω
100
Ω
1k
Ω
10k
Ω
100k
Ω
1M
Ω
10M
Ω
100M
Ω
99.9880 to 100.0120
Ω
0.999894 to 1.000106k
Ω
9.99894 to 10.00106k
Ω
99.9890 to 100.0110k
Ω
0.999890 to 1.000110M
Ω
9.99370 to 10.00630M
Ω
99.5770 to 100.4230M
Ω
__________ to __________
Ω
__________ to __________ k
Ω
__________ to __________ k
Ω
__________ to __________ k
Ω
__________ to __________ M
Ω
__________ to __________ M
Ω
__________ to __________ M
Ω
* Enable OCOMP for 100
Ω
range.
** Calculate limits based on actual calibration resistance values and Model 2701 one-year resistance accuracy specifications. See
Verification limits.
Summary of Contents for 2701
Page 15: ...1 PerformanceVerification...
Page 47: ...2 Calibration...
Page 70: ...3 RoutineMaintenance...
Page 78: ...4 Troubleshooting...
Page 97: ...5 Disassembly...
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Page 111: ...6 ReplaceableParts...
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Page 131: ...A Specifications...
Page 140: ...B CalibrationReference...