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Bently Nevada 3500/64M Dynamic Pressure Monitor Machinery Condition Monitoring.The 3500/64M Dynamic Pressure Monitor is a single slot, fourchannel monitor that accepts input from high temperature pressure transducers and uses this input to drive alarms. The monitor’s one measured variable per channel is bandpass dynamic pressure.
The 3500/64M can use the 3500 Rack Configuration Software to configure the bandpass corner frequencies along with an additional notch filter. The monitor provides a recorder output for control system applications.
The primary purpose of the 3500/64M Dynamic Pressure
Monitor is to provide the following:
Machinery protection by continuously comparing
monitored parameters against configured alarm
setpoints to drive alarms
Essential machine information for operations and
maintenance personnel
Each channel, depending on configuration, conditions its input
signal to generate various parameters called measured
variables. You can configure alert and danger setpoints for
each active measured variable.
Low and high filtering modes are options for a
channel pair. Channels 1 and 2 form a pair, and
channels 3 and 4 are the other pair. You may
select different band pass options on each
channel of a channel pair. However, the channels
within the pair must operate in the same
filtering mode.
You can set up the signal processing so that the
monitor feeds only the channel 1 input to all
four channels. This feature is called Cascade
Mode and is denoted as 1 >ALL in the 3500
Rack Configuration Software.
In Cascade Mode, you can select filter mode
options for a channel pair only. One transducer
provides input to four channels for different
filtering requirements. As a result, you can
configure four separate bandpass filter options
and four separate full-scale ranges with one
transducer input.
The two modes of filtering provide different
qualities of filtering.