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.
| 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 °Ctemperatures of the medium) |
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| Ui [V] | Ii [mA] | Pi [W] | Ci [nF] | Li [uH] | |||
| 28 | 100 | 0,7 | 37 | 506 | |||
| 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. |
| 0-100 | 0-1.00 | 0-10 | -1-0 | -1-6.00 | 0-400 | 0-1.00 | 0-10 |
| 0-160 | 0-1.60 | 0-16 | -1-1.00 | -1-10 | 0-600 | 0-1.60 | 0-16 |
| 0-250 | 0-2.50 | 0-25 | -1-1.60 | -1-16 | 0-2.50 | 0-25 | |
| 0-400 | 0-4.00 | -1-2.50 | -1-25 | 0-4.00 | |||
| 0-600 | 0-6.00 | -1-4.00 | 0-6.00 | ||||
| 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 | ||||||
| Type | Ambient temperature | Medium 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 |
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| 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) |
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| 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 kg | DT7200 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) |
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| Detailed information see in operating instructions. The Manufacturer maintans the right to change the technical data! | |||||||
