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Brüel & Kjaer Vibro │ Instruction
VC-8000 MPS
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8.1.3 Wiring IEPE Transducers
The UMM provides +24 Vdc at 3 mA constant current to power typical IEPE 2-wire sensors. Connect
the transducer “A” wire to the UMM Sig/A wire and the transducer “B” wire to the UMM COM/B
terminal as shown in below:
Figure 8-3) IEPE Transducer Wiring
Sensors designed for negative voltage operation, such as the Bently Nevada Velomitor,
typically have the A (COM) and B (-24V)
The BN Velomitor can be connected to the VC-8000, connecting A (SIG) and B (COM),
as shown in Figure 8-3) IEPE Transducer Wiring
8.1.4 Wiring Moving Coil Velocity Sensors
Connect moving coil transducers between the UMM SIG/A and COM/B terminals as shown in Figure
8-4. When the sensor is properly connected, the bias is 0 Volts. If the transducer is disconnected,
the input will change to -6 V and the UMM will set the channel as faulted.
Figure 8-4) Moving Coil Velocity Sensor Wiring
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