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Entek IRD 6652 DSP Protection Monitor
Specifications
Data transferred
From serial port: overall amplitude, relay status, 30 minute trend
(1 second interval), 30 minute trend prior to trip (1 second
interval), spectrum, trip spectrum, phase vs. amplitude plot, time
waveform (synch sampled), orbit plots
FFT spectrum (100, 200, 400, 800 lines) computed from digitized
time waveform
With tacho, bandwidth fixed at 12.5 orders up to 18,000 RPM
Without tacho, FFT spectrum bandwidth of 100 Hz to 19 kHz,
programmable
Magnitude and phase for 1x, 2x, 3x machine speed with tacho,
maximum 18,000 RPM
Transient analysis data captured during speed transients between
user-defined low and high RPM; minimum interval of 8 RPM
Up to 300 sets of order data (amplitude and phase) for 1x, 2x, and
3x machine speed
First out alarm
First out Alert alarm line, common to both channels
First out Danger alarm line, common to both channels
Alarms
Setpoints
User-configured Alert and Danger setpoints for each channel
Engineering units used for alarms are the same as the display
units
Programmable from 0% to 100% of full scale
Up to 7 speed bands, each with independent alarm setpoint
multiplier and/or Danger alarm inhibit
Setpoint accuracy
±1%
Setpoint repeatability
±0.01% (14 bit resolution)
Alarm delay/start-up
User-configured alarm delay and machine start up periods
The time periods are user-configured from 0 to 30 seconds in 0.1
second increments
Display
Type
Dot matrix liquid crystal display with backlight
Resolution
Digital numerical value, resolution depend on scale:
value > 100, no decimal places
10 < value < 100, 1 decimal place
value < 10, 2 decimal places
Data displayed
Measurement shown on vertical bar graph with alarm indicators;
also displays digital numerical value
Alternate display shows date, time, machine speed (with tacho
input up to 60,000 RPM), and transducer gap voltage
Units displayed
Vibration units in mil, µm, mm, ins; all in pk-pk
