FAQ

Q1: What is the Bently Nevada 16925-66 Proximity Probe used for?

A: The 16925-66 is a non-contacting eddy-current proximity probe designed to measure shaft vibration, radial position, and axial (thrust) position

on rotating machinery such as turbines, compressors, pumps, and generators. It forms part of a complete transducer system

that includes an extension cable and a Proximitor® sensor.

Q3: What is the working principle of this probe?

A: The probe operates on the eddy-current principle. When placed close to a conductive surface (such as a rotating shaft), it

 induces small currents (eddy currents) in the target. The change in impedance in the probe coil is proportional

to the gap distance, allowing precise non-contact measurement of vibration or displacement.

Q4: What is the typical output or sensitivity?

A:While exact numbers depend on probe type and calibration, Bently Nevada proximity systems typically

output 7.87 mV/µm (200 mV/mil).For correct calibration, the probe, extension cable, and Proximitor® must

 be electrically matched as a complete system

(total length and type).