DT7200 Intrinsically safe 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
  • 32 measurement ranges between 0 and 25 bar
  • Intrinsically safe
  • 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 DT7200 …Intrinsically safe pressure transmitters provide a 4-20 mA current signal in proportional to the pressure connected to their input. The transmitters are intrinsically safe devices, and they can be operated in a potentially explosive environment falling into the category Zone 0 and Zone 1.
The transmitters are available with 32 different measurement ranges, for the measuring of relative / absolute pressure and vacuum. Depending on the construction of the device, the temperature of the medium under measurement may vary between -25 °C and 140 °C, while the ambient temperature may be between -25 °C and 70 °C.
The material being in contact with the medium is KO36 steel; the sealing applied depends on the medium and the temperature of the medium, and it can be: Teflon (PTFE), Buna EP (EPDM), Viton (FKM), or Isolast 9503 (FFKM).
The transmitters are available with various threaded connections: G1/2”A / M20 x 1.5 manometer connection, and G 3/4” 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
Intrinsical safety data:
Certification:BKI 15 ATEX 0037 X
Protection marking:II 1/2 G EEx ia IIC T4/T3 (Class T3 in the case of more than 130 °C
temperatures of the medium)
Ui [V]Ii [mA]Pi [W]Ci [nF]Li [uH]
Input parameters:
Input signal:pressure
Ranges:see the table below
RANGESSpecial ranges that differ from the above are also available upon request.
[mbar] rel.[bar] rel.[bar] rel.[bar] rel.[bar] rel.[mbar] abs.[bar] abs.[bar] abs.
Overdrive capacity:150%
Output parameters:
Output signal:DC current, proportional to the measured pressure
Range:4-20 mA
Accurary:0.25% (tipically)
Temperature-coefficient:200 ppm / °C (0-75 °C between), 300 ppm / °C (-20-90 °C betveen)
Supply-voltage effect:no
Response time:0.5 ms (10-90%)
Power supply:
Loop power supply voltage:12-28 VDC
Ambient conditions:
Operating temperature range:see the table below
TypeAmbient temperatureMedium temperature
DT7200 L-25 °C -25 °C
DT7200 M-25 °C -25 °C
DT7200 H-25 °C -25 °C
Relative humidity:90% (max., non-condensing)
Place of installation:potentially explosive area
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:DT7200 L: 36 × 154 mm(diameter × length)DT7200 M, DT7200 H: 36 × 203 mm (diameter × length)
Weight:DT7200 L: 0.3 kgDT7200 M, DT7200 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!


Leaflet of productOperating InstructionATEX certificate

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