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The next generation of shaft monitoring
The world’s first fully integrated, loop-powered
displacement transmitter series DT-12x.
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 their 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?
Vibration Measurements
Axial position Relative shaft vibration
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DT-12x Transmitter
Technical Specifications Summary
DT-12x products:
DT-121 Continuous thread
DT-122 Corrugated tube protection
DT-123 Reverse mount
Measurement type:
Eddy current method (inductive) RV - Radial shaft vibration
AP - Axial shaft position
Radial shaft vibration (DT-12x.RV):
Full scale (FS) range, nominal 0-100 µm 0-250 µm 0-600 µm
(peak-peak) 0-4 mils 0-10 mils 0-24 mils
Axial shaft position (DT-12x.AP):
Full scale (FS) range, nominal 0-1,2 mm 0-1,5 mm
0-50 mils 0-60 mils
Loop output:
Output signal 4-20 mA, live zero
Signaling (range overshoot error) As per NAMUR NE43
Accuracy:
0 °C … +45 °C, at FS ±0,2 %
Overall operating temp. range, at FS ±0,5 %
Pressure tightness:
Transmitter tip 25 bar
Transmitter with corrugated tube 25 bar (valid only for DT-122)
IP protection according to EN 60528 IP68, IP69
Temperature range:
Operating temperature range -40 °C ... +105 °C
Storage temperature range -55 °C ... +125 °C
See Product Specification BPS0157 for a list of all technical specifications and options, or visit our website www.bkvibro.com
The DT-12x series of displacement transmitters is just one product of Brüel & Kjær Vibro’s comprehensive monitoring
solutions that comprises all kinds of vibration sensors (acceleration, velocity and displacement), vibration monitors, hand-
helds and rack-based plant-wide integrated monitoring solutions. These products plus a suite of comprehensive services
fulfill the most demanding applications
for safety, condition and performance
monitoring of rotating machinery.
Monitoring in the hydrocarbon
processing, conventional power,
hydropower and wind power industries
is a strategic area of focus.
Based on 60 years of experience and
a world-wide sales and support
network, Brüel & Kjær Vibro’s monitoring solutions have successfully
reduced downtime and maintenance
costs and increased machine reliability
for customers world-wide.
Please contact us for more information:
[email protected] or call +49 6151/428-2900
Brüel & Kjær Vibro GmbH
Leydheckerstrasse 10 | 64293 Darmstadt | Germany
www.bkvibro.com
Fully integrated
solution
providing 4-20 mA
analog output
© Brüel & Kjær Vibro, 10/2019 | All information non-binding. Right of alteration reserved. | Brüel & Kjær Vibro is part of Spectris plc, the leading supplier of productivity enhancing instrumentation and controls.
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