FAQ

1. What is the purpose of the 991 Thrust Transmitter?

It is used to measure axial shaft displacement (thrust position) in rotating machinery such as compressors,

pumps, motors, and turbines. It converts this mechanical movement into a standard

 4–20 mA output signal for monitoring or control systems.

2. What type of probe is required for this transmitter?

The transmitter is designed to work with the Bently Nevada 3300 NSv proximity probe system (probe + extension cable).

It is a non-contacting eddy-current proximity system.

3. What is the full-scale output range of the 991-06-50-01-00?

This model provides a 4–20 mA output proportional to ±0.6 mm of thrust movement.

4. Is this a loop-powered device?

Yes, the 991-06-50-01-00 is a two-wire,

loop-powered transmitter requiring a DC supply voltage of 12 to 35 VDC.