Appendix B — Technical specifications and applicable standards

Calibration information

New Baker AWA testers are calibrated at the manufacturing facility before shipping.

Calibration is recommended annually to ensure continued optimum performance.

For more information, please contact SKF Condition Monitoring Center, Fort Collins (SKF USA) for current calibration information. You may also contact the Service department at (970)

282-1200 or (800) 752-8272.

Baker AWA-IV 2 kV and 4 kV tester specifications

Table 8. Surge test specifications.

Parameter

Output voltage

Max output current

Pulse energy

Storage capacitance

Sweep range

Volts/division

Repetition rate

Voltage measurement and accuracy

Baker AWA-IV 2 kV

0–2160 volts

200 amps

.2 joules

.1F

2.5–200μS/Div

500/1000/2000/ 3000

5 Hz

+/– 12%

Baker AWA-IV 4 kV

0–4250 volts

400 amps

.9 joules

.1μF

2.5–200μS/Div

500/1000/2000/ 3000

5 Hz

+/– 12%

Table 9. DC High Potential (HIPot) test specifications.

Parameter

Output voltage

Max output current

Current resolution

Overcurrent trip settings

Full scale voltage and current measurement and accuracy

Meg-ohm accuracy

Max Meg-ohm reading

Baker AWA-IV 2 kV

0–2160 volts

1000 μamps

.1/10/100/1000 μamps/ division

1/10/100/1000 μamps

+/– 5%

+/– 10%

50,000 MΩ

Baker AWA-IV 4 kV

0–4250 volts

1000 μamps

.1/10/100/1000 μamps/ division

1/10/100/1000 μamps

+/– 5%

+/– 10%

50,000 MΩ

Technical specifications and applicable standards

Table 10. Physical characteristics.

Parameter

Weight

Dimensions (W x H x D)

Power requirements

Baker AWA-IV 2kV

24 lbs.

15 x 8 x 8 inches

85–264VAC 50/60 Hz @

500 watts or more

Baker AWA-IV 4kV

24 lbs.

15 x 8 x 8 inches

85–264VAC 50/60 Hz @

500 watts or more

Table 11. Accuracy of measurements—Coil resistance test. Four-wire Kelvin method resistance test

Range

*10Ω–100Ω

2Ω–20Ω

.2Ω–2Ω

.05Ω–.6Ω

.005Ω–.07Ω

.001Ω–.01Ω

Resolution

.1Ω

.1Ω

.05Ω

.005Ω

.0002Ω

.0001Ω

* Above 100Ω is reported as a potentially open circuit.

Full-scale accuracy

+/– 5%

+/– 5%

+/– 5%

+/– 5%

+/– 5%

+/– 5%

Table 12. Testing accuracy for HiPot measurements.

Range

100 μA/Div

10 μA/Div

Approximate maximum measurable current

900μA

90μA

1 μA/Div

.1 μA/Div

9μA

.9μA +/– .045μA

Resolution

+/–5% from

9μA–90μA

+/–5% from

.9μA–9μA

+/–5% from

.1μA–.9μA

Full-scale accuracy

+/– 5%

+/– 5%

+/– 5%

+/– 10%

Table 13. Voltage measurement accuracy—Surge test.

Range

500V/Div

1000V/Div

2000V/Div

Resolution

+/–12%

+/–12%

+/–12%

156 PUB CM/I4 71-015 EN V13.2 Static Motor Analyzer—Baker AWA-IV User Manual