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DIN-rail programmable transmitter
23 October 2019, Test & Measurement

Calog Instrument’s versatile DPM9000 series – a miniature DIN-rail mount programmable isolated transmitter range – boasts high reliability and a versatile, wide range of programmable inputs. With dimensions of 92 x 92 x 26 mm, the product range is a space-saver.

Configuration and field calibration is done via any Windows-based computer or tablet, running the user-friendly SmartView software which is available for download on the Instrotech website (

The model DPM9000 transmitter offers complete 3-way isolation between power supply, input and output. The inputs are programmable to accept thermocouples of type J, K, N, R, S, T and W5, RTDs of type Pt100 or Ni100, mV inputs up to 52 mV, 0-20 mA/4-20 mA inputs, volt inputs up to 10 V, potentiometer inputs, and frequency inputs from NPN/PNP proximity switches.

Integral 2-wire transmitter power is supplied as standard with the units, as well as a precision reference for potentiometer inputs. The analog output is programmable for 0-20 mA/4-20 mA or 0-10 V outputs. The power supply comes standard as 95-265 V a.c./d.c., as well as the RS-232 serial interface which allows connections to remote computers and scada systems using Calog’s DIGIbus protocol.

The RS-485 option allows for up to 99 transmitters to be linked on the same bus. The unit can also accept an ASCII-based serial input signal for conversion to an analog output signal. The lineariser feature is standard and the user can select s-curve, sphere, square-root extraction or off (no linearisation).

The model DPM9240 offers a 10-30 V d.c. isolated power supply instead of 95-265 V a.c./d.c. Also available in the series are the Models DPM9004 (95-265 V a.c./d.c. supply) and the DPM9244 (10-30 V d.c. supply), ideal for load cell applications. The model DPM9006 is a high-current (0-5 A) or high-voltage (0-500 V a.c./d.c.) input version.

Locally designed and manufactured by Calog Instruments, all units meet the European EMC directive 89/336/EEC and low voltage directive 73/23/EEC.

For more information contact Instrotech, +27 10 595 1831,,

Supplied By: Instrotech
Tel: +27 10 595 1831
Fax: +27 11 462 1958
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