The CMCP530 Accelerometer based Velocity Monitor is available in either "Peak" or "True RMS" signal detection versions and English or Metric scaling. The CMCP530 is compatible with all voltage output accelerometers, and provides a 4-20 mA output proportional to the overall measurement. Each unit provides constant current power for the accelerometer, checks for faults, processes the vibration signal to determine overall amplitude, and outputs a 4-20 mA dc current that is proportional to a user selectable range of 0.5, 1.0, 1.5, 2.0 and 2.5 in/sec (metric equivelant of 12.7, 25.4, 38.1, 50.8 and 63.5 mm/sec) with a 100 mv/g Input. Combining transmitters with an existing PLC or DCS system results in a high density, low cost vibration monitoring system.

The CMCP530A Alarm Module provides ok, alert and danger relays, selectable time delay, trip multiply, bypass and 0 to 5 VDC outputs for displays. The relay outputs can be used to trigger machine shut-down or other alarms.

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 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 green LED on the front of the unit is turned off 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.

Electrical Specifications:
Input: Accelerometer (100 mvg)
Power: +24 Vdc @ 45 mA max. (30 mA typical).
Protection: Reverse polarity and transient protection included.
Frequency Response (wo/filters): (-3 dB) 2 Hz to 2.0 kHz.
Buffered Output: BNC Connector 0-20 kHz.
Accuracy: 0.5 % of Full Scale Range.
Output: 4-20 mA proportional to the full scale range.
Maximum Load: 600 Ohms Resistive.
Case: Isolated.
Range: English, 0.5, 1.0, 1.5, 2.0, or 2.5 in/sec. or
           Metric, 12.5, 25.4, 38.1, 50.8, 63.5 mm/sec.
Constant Current Diode: 4.0 mA
Fault Indication: Green LED and 4-20 mA < 2mA

Relay Module:
Alarms: OK, Alert and Danger
Alarm Setpoints: Alert and Danger Adjustable 0 to 110% FS.
Trip Multiply: 2X or 3X on Contact Closure.
Alarm Relays: OK, Alert and Danger.
                     Form C, SPDT, 5A @ 30 VDC or 250 VAC.
                     Latching or Non-latching, Selectable.
Time Delay: 0.1, 1, 3, 6 or 10 Seconds, Selectable.
Alarm LED's: Alert = Yellow, Danger = Red.
Display Outputs: 0-5 VDC for Current Value, Alert Setpoint and Danger Setpoint.

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.

Physical:
Mounting: 32 mm (G style) or 35 mm (T style) DIN Rail.
Size: 1" Wide x 3.11" High x 3.95" Deep