Bently Nevada ORBIT 60 SERIES Keyphasor Input Module Description

Description

Unlike previous systems, the Orbit 60 Series system supports

Keyphasor configurations for any dynamic input channel

through the PAV, PAS, PAA, PAD, and PVT input modules. For

high-phase accuracy applications (over 12.000 rpm) the

Keyphasor Input Module must be used. The input speed limit

is 120.000 rpm and can accept input speed signals up to

1.200.000 cpm (20 kHz). Each Keyphasor Input Module can

accept up to four speed inputs. Input configurations to this

module can also support Acceleration, Differential Expansion,

Radial Vibration, and Thrust inputs. The Keyphasor input

Module occupies a single slot.

Although the system allows the user to configure

channels on the Keyphasor Input Module to serve

as non-speed input types as described above,

there will be a decrease in accuracy on these

measurements when compared to PAV, PAS, PAA,

PAD, and PVT modules. The accuracy is decreased

from 1% of Full Scale Range to 2% of Full Scale Range

on all 3-wire (non-speed) connections from 0 to

40 kHz. These non-speed inputs also cannot be

utilized in SIL applications. The Keyphasor Input

Module can only be utilized in SIL applications when

configured for speed inputs.

Any channel on the module can be configured as a once

per-turn Keyphasor or a multiple-event-per-turn speed

signal from a rotating shaft or gear used to provide a

precision timing measurement. The Keyphasor Input Module

Speed Channels can be configured to support Recip Multi

Event Wheel speed signals.