Bently Nevada ORBIT 60 SERIES Keyphasor Input Module Transducers

The Keyphasor Input Module works with the following transducers:

• Magnetic pickup

• 3-wire Prox

• 3-wire Accel

The module senses the Keyphasor signal when

the sensor reads a notch or protrusion in the

target, then digitizes and processes the signal

to provide machine rotative speed and the

phase reference for vector parameters, such as

1X amplitude and phase. The Keyphasor gives

phase reference information for vibration

measurements, providing key relationships for

diagnostic analysis. It also provides

speed/phase reference for the synchronously

sampled waveforms captured by the Condition

Monitoring Module.

The 2-wire input connection provides a

galvanically isolated, hi-impedance input

which primarily supports magnetic pick-up

speed sensors. The isolated input eliminates

potential ground loops that can occur when

speed sensors are shared between the

vibration system and other instrumentation.

The Keyphasor Input Module provides a

buffered transducer output for each channel.

Within Orbit Studio software, each output can

be configured within Orbit Studio Software to be

either a true analog signal representative of the

input or a conditioned/processed digital TTL

signal replicating machine speed and

maintaining phase with the input signal.