Displacement Transmitter DT-12x for monitoring machinery

Displacement Transmitter DT-12x

Displacement Transmitter DT-12x

Integrated displacement transmitter series for monitoring semi-critical machinery

The DT-12x series of integrated displacement transmitters is ideal for monitoring balance-of-plant machinery such as fans, pumps, blower, motors or small compressors. Due to the fact that the vibration driver (oscillator) and signal conditioning electronics (vibration monitor) are built directly into the sensor, the displacement transmitter can be directly connected to a DCS or PLC via its 4-20 mA output.

Easy – cost-efficient – reliable!

The Displacement Transmitter DT-12x features:

  • The world’s first fully integrated loop-powered displacement transmitter
  • Measurement of axial shaft position and relative shaft vibration
  • Analog 4-20 mA output
  • Suitable for use on semi-critical sleeve-bearing machines
  • Simple mounting
  • Cost-saving installation: No separate driver or electronics needed
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The DT-12x series of integrated displacement transmitters provide accurate, reliable radial and axial shaft displacement and vibration monitoring capability for industrial machines at a fraction of the cost for a normal displacement sensor.

A vibration monitor is not even needed for connecting the sensor signal to the DCS/PLC, so the transmitter is not only economical with fewer components compared to a normal sensor, but it has a much smaller small footprint with minimal installation effort.

The DT-12x series are integrated sensors, so the vibration driver (oscillator) and signal conditioning electronics (vibration monitor) are built directly into the sensor. This greatly simplifies installation by eliminating the need and space requirements for a driver, vibration monitor, and protective housing. We have extensive experience here as we have been successfully implementing this technology into the IN-08x displacement sensors for decades now.

The transmitter is loop-powered, meaning the low powered sensor is easy and inexpensive to install with only a two-wire connection. It provides a 4-20 mA signal driven by an inexpensive external DC voltage source on the current loop that – when properly selected – is not affected by long wiring distance, voltage drops, or noise.

The transmitter can be connected to the DCS/PLC and to any number of other 4-20 mA receiving devices on the current loop such as digital display, data loggers, etc. Two extra wires on the sensor provide a buffered voltage signal output to a portable monitoring system for external data storage and analysis. Moreover, these transmitters can be used in the harshest industrial environments.

Why invest a fortune for installing a typical condition monitoring system measuring chain on your balance-of-plant and semi-critical sleeve bearing machines when a single sensor is all that is needed for each measurement point?






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        Brüel & Kjær Vibro
        BK Vibro America Inc.
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