GENERAL ELECTRIC BENTLY NEVADA 3500/25

3500/25 Enhanced Keyphasor Module Datasheet

Keyphasor signal is a once-per-turn or multipleevent-per-turn pulse from a rotating shaft or gear

used to provide a precise timing measurement. This

allows 3500 monitor modules and external diagnostic

equipment to measure shaft rotative speed and

vector parameters such as 1X vibration amplitude and phase.

primary Keyphasor input signals. A paired

configuration requires two consecutive

monitoring positions in either the upper/lower

or both half-slot positions. Four Keyphasor

modules will accept four primary and four

backup input channels and provide four output

channels (one per module). A configuration of

two paired and one non-paired (three

Keyphasor modules total) is also possible. In

such a configuration, the user may configure

the one non-paired Keyphasor (order either

two 2-channel or one 1-channel and one 2- channel option)

Bently Nevada 3500 Vibration Monitoring System