Bently Nevada ORBIT 60 SERIES Keyphasor Input Module Functionality

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.

The Keyphasor Input Module can accept a

recip multi-event wheel signal, which is used to

track shaft rotation more precisely during a

revolution. This 13 tooth gear has a unique tooth

used to indicate the crank angle reference for

specific recip measurements.

The module supports backup speed source

functionality. When configured, if the primary

speed source enters an invalid state, a backup

speed channel will be utilized to provide a

speed reference for configured synchronous

measurements. Compensations for differences

in shaft speed and phase reference timings

can be configured to maintain measurement

accuracy upon transitioning to backup speed sources.

The module OK LED indicates when the module

is functioning properly, and the LINK LED

indicates when the module is communicating

to the rest of the system. Four Channel Status

LEDs located on the utility side of the module

indicate a connected sensor is installed and in

OK condition.