Description:
The CMCP540A Vibration Displacement
Monitors are compatible with proximity probe inputs, they provide a 4-20 mA output proportional to the
overall measurement. Each unit processes the vibration signal to determine overall amplitude,
and outputs a 4-20 mA dc current that is proportional to a user specified
range such as 5 mils peak to peak. Combining monitors with an
existing PLC or DCS system results in a high density, low cost vibration
monitoring system. The alarm feature functions
as a complete single channel monitor that includes alert and danger alarms,
and output relays.
Buffered Output:
A BNC connector mounted on the front
of the unit provides access to the buffered transducer output signal. This
includes both the unfiltered vibration signal, and the DC bias voltage.
Portable test equipment or analyzers like SKF-CM's
Microlog™ can be connected to this output without disturbing
other system outputs.
Fault Detection:
On board fault detection circuitry
continuously monitors the transducer for normal operation. If a fault
occurs, the output current is reduced to 2 mA to indicate the fault to the
readout system. A red LED on the front of the unit is turned on to provide a
local indication of the fault.
Filters:
For applications that require
monitoring specific frequency bands, optional high-pass and low-pass
filters can be specified. These filters are modular and can be installed by
the factory or in the field. Each module attenuates out-of-band signals at a
rate of approximately 24 dB/octave. Corner frequencies from 2 Hz to 20 kHz
may be specified. Filter modules may be cascaded to form higher order
filters or to create a band-pass response. Filtering does not effect the
buffered transducer output.
Alarms:
The CMCP540A Vibration
Displacement Monitors
have
two independent set points, with LED alarm indicators and output relay
contacts (Alert and Danger). Set points are adjustable via potentiometer,
from 0 to 110% of full scale. Each has an adjustable delay of 1 to 10
seconds. Relay contacts can be independently configured by the user for
either Normally Open (NO) (Standard) or Normally Closed (NC) operation.
Relays are normally de-energized and can be configured for latching or
non-latching (standard) operation. Latched alarms may be reset locally or by
remote contact closure. SPST Relay contacts are rated 5 Amps @ 30 Vdc or 250
Vac for resistive loads. The monitors also have set point
multiplication of 3X via contact closure (2X available).
Displays And Assemblies:
Various display options, NEMA
and explosion-proof enclosures, and assembled multi-channel systems are
available. Consult your sales representative.
Electrical Specifications:
Power: +24 Vdc @ 45 mA max.
(30 mA typical at 2
full scale output). Reverse polarity and transient protection included. (With the Alarm/Relay option installed: 75 mA max.)
Frequency Response (Without optional filters): (-3 dB) 2 Hz to 20
kHz.
Buffered Output: BNC Connector 0-20 kHz.
Accuracy: 5.0 % of Full Scale Range.
Output: 4-20 mA proportional to the full scale range.
Maximum Load: 600 Ohms Resistive.
Case: Isolated
Environmental Specifications:
Operating Temp.: -20°C to +80°C
(-4°F to +176°F).
Storage Temp.: -55°C to +125°C (-67°F
to +257°F).
Relative Humidity: 0 - 95% Non-Condensing.
Mounting:
32 mm (G style) or 35 mm (T style) DIN Rail.
Ordering Example:
To order a standard
vibration displacement monitor that accepts input from a 100 mV/mil
proximity probe, with a Full Scale of 5 mils peak to peak,
specify Part Number: CMCP540A-100-01.
NOTES:
-
To order factory installed
4-pole filter modules, add the appropriate suffix to the basic part
number:
- Example: adding suffix
-L500 specifies a 4-pole low-pass filter with a corner frequency of 500
Hz (30,000 cpm). Adding suffix - H40 specifies a 4-pole High-Pass filter
with a corner frequency of 40 Hz (2400 cpm). Up to two filter modules
may be specified. Filter modules can be field installed. If you are
unsure about your filter needs, need higher order filters or a band-pass
response, consult the factory or your regional sales office for
assistance in specifying the correct option numbers.
-
The Full Scale option
specified at order entry is used by the factory for initial calibration.
However, several other ranges can be jumper selected in the field.
-
Transducer and Full Scale
options not listed in the above table are available. Contact your sales
representative.
CMCP540A Vibration Displacement Monitor
CMCP540A-(aaa)-(bb)-(ccc)-(dddd)
(aaa) Input
100, 100 mV/mil
200, 200 mV/mil
Specify, Specify Exact mV/mil
(bb) Full Scale
01, 5 mils Peak to Peak
02, 10 mils Peak to Peak
03, 15 mils Peak to Peak
51, 125 micron Peak to Peak
52, 250 micron Peak to Peak
53, 375 micron Peak to Peak
Specify, Specify in 5 mil Increments
(ccc) High Pass Filter
HXX, High Pass Corner Frequency in Hz
(dddd) Low Pass Filter
LXXX, Low Pass Corner Frequency in Hz
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Approved
