DT720 Pressure transmitter

Product features

  • Measuring of the pressure of gases, vapours and liquids
  • Measuring of relative / absolute pressure, vacuum
  • Medium temperature: up to 140 °C
  • 37 measurement ranges between 0 and 250 bar
  • 4-20 mA two-wire transmitter
  • G 1/2”A / M20 × 1.5 / G 3/4”A process connections
  • IP 65 protection

Product description

The DT720 … Pressure transmitters provide a 4-20 mA current signal proportional to the pressure connected to their input. The remote transmitters are available in 37 different measurement ranges, for measuring relative / absolute pressure and vacuum.
The temperature of the measured medium may vary between -25 °C and 140 °C (depending on the construction of the device), while the ambient temperature may range from -25 °C to 70 °C. The material being in contact with the medium is ceramic or KO36 steel, and the sealing may be Teflon (PTFE), Buna EP (EPDM), Viton (FKM), or Isolast 9503 (FFKM), depending on the medium and the temperature of the medium.
The transmitters are available with various threaded connections: G1/2”A / M20 x 1.5 manometer connection, G3/4”A front membrane construction.

Technical specifications

Safety data:
The connection terminals of the supply voltages are isolated from each other, the isolation is in compliance with the standard EN 61010-1, taking into consideration the following:
Pollution level:2
Measurement category:II
Input parameters:
Input signal:pressure
Ranges:see the table below
Overdrive capacity:150%
Special ranges that differ from the above are also available upon request.
[mbar] rel.[bar] rel.[bar] rel.[bar] rel.[bar] rel.[mbar] abs.[mbar] abs.[mbar] abs.
Output parameters:
Output signal:DC current, proportional to the measured pressure
Range:4-20 mA
Accuracy:0.25% (typically)
Temperature-coefficient:200 ppm / °C (0-75 °C between), 300 ppm / °C (-20-140 °C between)
Supply-voltage effect:no
Response time:0.5 ms (10-90%)
Power supply:
Loop power supply voltage:12-30 VDC
Ambient conditions:
Operating temperature range:see the table below
TypeAmbient temperatureMedium temperature
DT720 L-25 °C -25 °C
DT720 M-25 °C -25 °C
DT720 H-25 °C -25 °C
Relative humidity:90% (max., non-condensing)
Place of installation:outdoor
Electromagnetic compatibility (EMC):
accordance with the standard EN 61326
Immunity:industrial area
Noise emission:Group 1, Class B
Data in general:
Housing:KO36 steel housing
Process connection:G1/2”A, M20 x 1.5 (manometer-connection),
G3/4”A (front-membrane connection)
Electrical connection:3-pole connector DIN43650/IP 65
Cross-section of the connected cable:2 × 0.25 mm2 (shielded cable)
Dimensions:DT720 L: 36 × 154 mm (diameter × length)DT720 M, DT720 H: 36 × 203 mm (diameter × length)
Weight:DT720 L: 0.3 kg,DT720 M, DT720 H: 0.35 kg
Protection:IP 65
Materials being in contact with the medium
under measurement:
KO36 steel / Teflon (PTFE) / Buna EP (EPDM) / Viton (FKM) / Isolast
9503 (FFKM)
Detailed information see in operating instructions. The Manufacturer maintans the right to change the technical data!


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