SKF AWAIV-12, User Manual

Page: 208 / 250

Table 24. Accuracy of measurements—coil resistance test. Resistance balance test (high-voltage
leads).
Range Resolution Full-scale accuracy
*10Ω–50Ω .2 Ω +/– 5 %
2Ω–20Ω .1 Ω +/– 5 %
.030Ω–2Ω .01 Ω +/– 5 %
**.000Ω–.4Ω .01 Ω +/– 5 %
* Above 50Ω is reported as a potentially open circuit.
**Balance test is not rated below .500Ω (for high-voltage test leads).
Table 25. Accuracy of measurements—4-wire kelvin method resistance test. (Use separate test leads).
Range Resolution Full-scale accuracy
*10Ω–50Ω .1 Ω +/– 5 %
2Ω–20Ω .1 Ω +/– 5 %
.2Ω–2Ω .05 Ω +/– 5 %
.05Ω–.6Ω .005 Ω +/– 5 %
.005Ω–.07Ω .0002 Ω +/– 5 %
.001Ω–.01Ω .0001 Ω +/– 5 %
* Above 50Ω is reported as a potentially open circuit.
Table 26.
*
Testing accuracy for hipot Measurements.
Range Approximate maximum
measurable current
Resolution Full-scale accuracy
100 µ A/Div 900 µA or 45 µA +/–5% from
90µA–900µA
+/– 5 %
10 µ A/Div 90 µA +/–5% from
9µA–90µA
+/– 5 %
1 µ A/Div 9 µA +/–5% from
.9µA–9µA
+/– 5 %
Table 27. Voltage measurement accuracy—Surge test.
Range Resolution
500 V/Div +/– 12 %
1000 V/Div +/– 12 %
2000 V/Div +/– 12 %
3000 V/Div +/– 12 %
194 SKF Static Motor Analyzer—Baker AWA-IV User Manual