IMI SENSORS 640B00, Installation And Operating Manual

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Introduction
The Model 640/641/645/646 B Series Industrial 4-20mA Sensors combine the capabilities of a piezoelectric
vibration sensor and a 4-20mA vibration transmitter. The sensor outputs a 4-20mA signal that is proportional to
the overall velocity or acceleration of the machinery. Ideal for monitoring the vibration of process equipment such
as fans, motors and pumps, the output of the sensor is used for process control or predictive maintenance. There
are many options in this series. Please refer to specific specification sheets for further details.
General Features
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Imbedded Piezoelectric Accelerometer for improved accuracy and frequency response.
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Vibration range can be in Acceleration or Velocity.
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Allows for continuous vibration monitoring of critical applications.
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Reduces sophisticated vibration analysis requirements.
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RV (Raw Vibration) option for conducting frequency analysis and machinery diagnostics.
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RVVO (Raw Vibration Velocity Output) option for conducting freq. analysis and machinery diagnosis.

TO (Temperature Output) option via an independent 4-20mA loop.
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Readily interfaces to existing process control and predictive maintenance equipment.
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Rugged stainless steel construction for applications in harsh environments.
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Flexible design allows for various custom requirements.