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BPPI 6.19
f) Perform the test. With the BPK Probe™ brushes pressed against the motor shaft, press and
hold the trigger switch throughout the test. As the test starts, the Helwig Carbon logo will
show (Figure 8).
g) Next, a SAMPLING SHAFT VOLTAGE message will appear (Figure 9). Continue to hold the
trigger switch with the tip of the probe against the motor shaft. When complete, the screen
will show a real-time test result (Figure 10).
h) Carefully remove the probe from the motor shaft, note the results, and release the trigger.
Remove the ground clamp and replace the protective tip cover. The test is complete.
i) The shaft voltage test can be repeated with and without
engaging the embedded grounding brush. To enable the
grounding brush, press the rocker switch on the face of the
probe handle. The embedded grounding brush is enabled
when the green LED on the switch is lit. Testing with the
grounding switch enabled shows the effectiveness of the
Helwig grounding solution (Figure 11).
Figure 8: As the test starts, the Helwig
Carbon logo will show.
Figure 9: A SAMPLING SHAFT
VOLTAGE message will appear.
Figure 10: Test results for unprotected
motor.
Figure 11: Test results with
grounding switch enabled.
