Tektronix, Inc. DMM4040, Technical Reference

Page: 57 / 102

Performance Test and Calibration
Performance Tests
3
Table 3-9. DMM4040/4050 2-Wire Ohms Verification Steps
Nominal
Input
Range
90-day Test Limits
[1]
1-year Test Limits
[1]
High Low High Low
0
Ω
[2] [3]
100 4.0 m
Ω
0
Ω
4.0 m
Ω
0
Ω
100
Ω
[2] [3]
100 100.01200
Ω
99.988
Ω
100.0140
Ω
99.9860
Ω
0
Ω
1000 10.0 m
Ω
0
Ω
10.0 m
Ω
0
Ω
1.000 k
Ω
1000 1.00009 k
Ω
999.910
Ω
1.000110 k
Ω
999.890
Ω
0
Ω
10000 0.100000
Ω
0
Ω
0.100000
Ω
0
Ω
10.000 k
Ω
10000 10.00090 k
Ω
9.99910 k
Ω
10.00110 k
Ω
9.99890 k
Ω
0
Ω
100000 1.000000
Ω
0
Ω
1.000000
Ω
0
Ω
100.000 k
Ω
100000 100.0090 k
Ω
99.9910 k
Ω
100.0110 k
Ω
99.9890 k
Ω
0
Ω
1000000 10.00000
Ω
0
Ω
10.00000
Ω
0
Ω
1.00000 M
Ω
[2]
1000000 1.000090 M
Ω
0.999910 M
Ω
1.000110 M
Ω
0.999890 M
Ω
0
Ω
[2]
10000000 100.0000
Ω
0
Ω
100.0000
Ω
0
Ω
10.0000 M
Ω
[2]
10000000 10.00210 M
Ω
9.99790 M
Ω
10.00410 M
Ω
9.995900 M
Ω
0 100000000 10.00000 k
Ω
0
Ω
10.00000 k
Ω
0
Ω
100.000 M
Ω
100000000 100.8100 M
Ω
99.1900 M
Ω
100.8100 M
Ω
99.1900 M
Ω
0 1000000000 100.0000 k
Ω
0
Ω
1.000000 M
Ω
0
Ω
1.00000 G
Ω
[2]
1000000000 1.015100 G
Ω
0.984900 G
Ω
1.020100 G
Ω
0.979900 G
Ω
[1] Zero Meter before each measurement.
[2] 5520A must be used with 8508A to obtain suitable test uncertainty ratio.
[3] Optional test.
2X4 Test Lead Verification Steps
This optional test verifies Meter operation with the TL2X4W-PT 2X4-Wire Test Leads.
To verify 2X4 Test Lead performance:
1.
Plug the TL2X4W-PT 2X4-Wire Test Leads into the HI and LO terminals of the
Meter (correct orientation is with the bump down)
2. Press

.
3. If not already highlighted, press the

soft key.
4. Connect the probe tips together to get the lowest reading.
The Meter should read under 3 milliohms. If the Meter reads above 3 milliohms, clean
off the probes with a damp cloth and repeat step 4 above.
Note
If the leads are damaged, replace them.
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