BN Accelerometer Probe Configuration Issue

To be clear, what you want is 25mm/s full scale??

1/ Bentley nevada accelerometer probe 330400-02-05 is specified as 100 mV/g output. That is acceleration, so you MUST have an integrator in the loop - I assume the amplifier in the rack provides this. So any operation with "integrator OFF" will not make progress.

2 The probe spec writes output -8.5 +/- 0.5 volts (static) - so what do you measure to common of probe a) as connected b) with "out" wire of probe disconnected at rack [eliminates trouble in rack from probe]. c) what is power out to probe [-24??]?

This should rule out "wire off" between probe & rack & basic problem with probe.

25 mm/s peak @ 60Hz [equivalent 3600 rev/min] sine wave is 0.96g peak, so full scale is about 100mV peak, 70 mV rms from probe.

This should be readable on a good multimeter, AC range, supposing your Shaker table gives that level.

Unless this is a one channel system, are any other channels working OK with accelerometer? If there are, have you tried swapping this probe to another channel or swapping amplifiers between rack positions?? Or comparing configuration settings on a working channel?

If this is a 3600 rev/min turbine compressor, normal run at 2 mm/s is possible.