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DPM9004 Din Rail Mount Load Cell Transmitter
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The DPM9004 is a miniature space saving 92mm x 92mm x 26mm DIN-rail mount programmable load cell transmitter. Configuration and field calibration is done via a notebook or desktop PC using the user-friendly software available from our website. Complete 3-way isolation is provided between power supply, input and output.

The transmitter is designed for mV inputs from load cells, strain gauges and strain gauge pressure transmitters. The stable bridge excitation voltage is user selectable for normal or IS (barriered) applications, and can power four load cells with the standard 10V excitation. Sense feedback is included to compensate for cable loss. The precision instrumentation op-amp front end circuit ensures high accuracy & stability. The digital filter feature allows for a stable output in noisy systems. The isolated analogue output is configurable for industry standard 0-10V or 0-20 / 4-20mA signals. The RS-232 serial interface and a remote tare function is standard.

The serial interface allows connections to remote computers and SCADA systems using DPM’s DIGIbus protocol. The RS-485 option allows up to 99 transmitters to be linked on the same bus.

A feature of this programmable transmitter is the calibration method. Pre-calibrated ranges can be allocated zero and full scale values and these can be adjusted on site via a notebook to allow for dead-weight offset and a single point span calibration (test weight trim).

  • User selectable excitation for normal or barriered applications.
  • Powers up to 4 load cells as standard with a 10V excitation.
  • 6-wire load cell system (sense feedback included).
  • Fully programmable via a laptop or desktop PC.
  • Suitable for load cell sensitivities up to 3.00mV/V.
  • Low cost - high performance design.
  • Complete 3-way isolation between power supply, input and output.
  • RS-232 serial interface standard with DIGIbus protocol


Housing 92 x 92 x 26 mm
Housing Din Rail Mounted
Housing UL 94 V-0 flame retardant plastic
IP Rating IP40
Power supply 95-265Vac
Standards Meets European EMC directive 89/336/EEC & Low Voltage directive 73/23/EEC


Accuracy & linearity 0.05% of full scale, ± 1 display count
analogue output 0-10V, 0-20mA or 4-20mA with programmable zero & span
Noise < 0.5 µV p-p
Sensitivity adjust Up to 3.00 mV/V full scale (2.00 mV/V default)
Span drift 20 ppm / °C typically
Warm up time 20 minutes
Zero drift 0.1µV / °C typically