RTD/Thermocouple Calibrator
712B Performance Verification
Table 5. 712B 4-Wire Ohms Measure Limits
Range (Ω) Applied Ω from 1 Yr. Lower 1 Yr. Upper 2 Yr. Lower 2 Yr. Upper
5522A (Ω) Limit (Ω) Limit (Ω) Limit (Ω) Limit (Ω)
400 1 0.95 1.05 0.92 1.08
400 10 9.95 10.05 9.92 10.08
400 100 99.94 100.06 99.89 100.11
400 390 389.89 390.11 389.80 390.20
4000 1000 999.4 1000.6 998.9 1001.1
4000 4000 3998.9 4001.1 3998.0 4002.0
Verify 3-Wire Ohms Measure
1.
Push
to set the 712B to Ohms Measure mode.
2.
Push
until 3W shows on the screen.
3.
Make the connections between the 712B and the 5522A, as shown in
Figure
4
.
4.
Set the 5522A to
output the Ohms value at the second column
in
Table 6.
5.
Wait approximately 10 seconds for a stable output of the 5522A, and verify
that the 712B readings are within
the limits shown.
Fluke 5522A
Fluke 712B
hwp018.eps
Figure 4. Verify 712B 3-Wire Ohms Measure
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