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CMCP547 Differential Expansion Transmitter/Monitor

Field Application Note: Differential Expansion TSI

Differential Expansion Transmitter

      Features:
  • Low Cost
  • Small Size
  • DIN Rail Mount
  • 4-20 mA Output
  • Fault Detection
  • Buffered Transducer Output
  • CE Approved Approved

Download the Data Sheet Manual CSA / UL Hazardous Area Approved

CMCP547 Differential Expansion Transmitter

CMCP 500 Transmitter Approval Label

Description:

The CMCP547 Differential Expansion transmitters are compatible with LVDT and proximity probe inputs, they provide a 4-20 mA output proportional to the overall measurement. Each unit provides power for the associated transducer, processes the signal, and outputs a 4-20 mA dc current that is proportional to a user specified range such as 0-1.0 inch. Combining transmitters with an existing PLC or DCS system results in a high density, low cost vibration monitoring system. When specified with the alarm feature (CMCP547A), the unit functions as a complete single channel monitor that includes alert and danger alarms, and output relays.

Alarms relays and trip multiply are available with the Monitor version.

Alarms - The CMCP500A Series 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. SPST Relay contacts are rated 5 Amps @ 30 Vdc or 250 Vac for resistive loads.

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.

Trip Multiply - The monitors have set point multiplication of 3X via contact closure (2X available). To avoid tripping the alarms during machine start-up.

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.

Displays And Assemblies:

Various display options, NEMA and explosion-proof enclosures, and assembled multi-channel systems are available. Consult your sales representative.

Monitoring Systems

Electrical Specifications:

  • Power: +24 Vdc @ 45 mA max. (30 mA typical at 2 full scale output). Reverse polarity and transient protection   included.
  • Buffered Output: BNC Connector
  • 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 differential expansion transmitter that accepts input from a 10 mV/mil LVDT, such as the CMCP-LVDT-51A, with a Full Scale of 0-2.0 inches, specify Part Number: CMCP547-02-03.

NOTES:

1.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.

2. Transducer and Full Scale options not listed in the above table are available. Contact your sales representative.


Ordering Information:

Differential Expansion Monitor/Transmitter CMCP547
CMCP547(X)-(aa)-(bb)-(cc)

CMCP547 Differential Expansion Transmitter
CMCP547A Differential Expansion Monitor

(aa) Input
01, 10 mV/mil
02, 20 mV/mil
03, 34 mV/mil
04, 100 mV/mil
05, 200 mV/mil
XX, Specify

(bb) Full Scale
01, 0-0.5 in
02, 0-1.0 in
03, 0-2.0 in
51, 0-12.5 mm
52, 0-25 mm
53, 0-50 mm

(cc) Orientation
NT, Normally (Upscale) Toward Probe
NA, Normally (Upscale) Away from Probe

 

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