GE Bently Nevada 86517 Operation Manual page 25

Section 4 - MAINTENANCE
8. Disconnect the input from pin C and connect it to pin A and leave pins C
and B not connected. Verify that the multimeter still reads 0.3535 Vrms ±7.0
mVrms. If it does not then check your test setup as in step 2 and then repeat this
step. If the test is not passed then replace the interface module.
To verify the velocity signal path, continue with step 9 on the following page.
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