Condition Monitoring & Custom Products

        Vibration Monitoring and Machine Protection Systems

        League City Texas     Phone: 800-845-3028 or 281-334-0766     Fax: 281-334-4255

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Technical Notes

CMCP-500A Series - Single Channel Monitors

• Low Cost per Channel

• 4-20 mA Output

• Programmable Alert and Danger Alarms

• Remote Reset (with latching alarm option)

• Trip Multiply for Startup

• Transducer Fault Detection

• Buffered Transducer Output On Front BNC

• High and Low-Pass Filters Available

• Small Size and DIN Rail Mount

• Approved

The CMCP-500A series monitors are complete single channel monitoring systems designed for a multitude of sensors. Standard models are available for all vibration transducers, temperature, process, and other parameters.

Each monitor provides power to the associated transducer, processes the signal to determine the amplitude, and outputs a 4-20mA signal. The 4-20mA proportional output is designed for use in datalogging or process control in the plant's PLC, DCS or HMI.

The alarm feature of the CMCP-500A series provides alert and danger alarm relay outputs. The relay outputs can be used to trigger machine shut-down or other alarms. Combining the monitors with an existing PLC or DCS system results in a high density, low cost monitoring system.

Available Models:

CMCP-525A Vibration Acceleration Monitor

CMCP-530A Vibration Velocity Monitor

CMCP-535A Integrated Vibration Displacement Monitor

CMCP-540A Vibration Displacement Monitor

CMCP-545A Position Monitor

CMCP-547A Differential Expansion Monitor

CMCP-548A Case Expansion Monitor

CMCP-549A Valve Position Monitor

CMCP-560A Isolated RTD Temperature Monitor

CMCP-565A Isolated Thermocouple Monitor

CMCP-570A Solid State Temperature Monitor

CMCP-580A Process Variable Monitor

CMCP-585A Eccentricity Monitor

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 vibration monitoring applications that require monitoring specific frequency bands, optional high-pass and low-pass filters can be specified. (Only available on vibration models)

Alarms - The CMCP-500A 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.

Displays And Assemblies - Various display options, NEMA and explosion-proof enclosures, and assembled multi-channel systems are available.