Overview
Enviro Test Construct combustible gas sensor, hydrogen sulphide and oxygen sensors can be widely used in metallurgy, petroleum, petrochemical, chemical, chemical, shipbuilding and other industries. The instrument adopts flameproof design, 4 mA to 20mA standard signal output, can be transmitted remotely and can directly enter the DCS system. The detection sensor has the characteristics of high sensitivity, rapid response, long service life and short polarization time, and is at the leading level of similar products in China.
Technical Specifications
| Detection method | Diffusion type |
| Working mode | fixed long term continuous work |
| Detection gas | combustible gas in air ex |
| Range | 0% LEL to 100% LEL |
| Accuracy | ± 5% FS |
| Minimum reading | 0.1% LEL |
| Response time | ＜ 30 seconds |
| Sensor type | catalytic combustion type, oxygen and hydrogen sulphide gas are electrochemical type |
| Working voltage | 10 V DC to 30 V DC |
| Working current | combustible gas ＜ 160 mA (max) |
| Output signal | three wire system 4 mA to 20 mA standard signal output |
| Shell material | Die cast aluminium shell |
| Transmission cable | three core barrier cable, sectional area 3 × 0.0591 in (1.5 mm) |
| Transmission distance | <3280 feet (<1000 m) |
| Protection grade | IP66 |
| Installation method | wall type, pipe type |
| Explosion proof type | Flameproof |
| Explosion proof grade | ex D Ⅱ C T6 and ex IA Ⅱ C T6 |
| Inlet | Hexagon lock nut |
| Operating Temperature | -4 °F to 131 °F (-20 ℃ to 55 ℃) (special requirements are determined according to needs) |
| Overall Dimensions | 7.20 in x 5.62 in x 4.21 in (183 mm x 143 mm x 107 mm) (display type)7.20 in x 5.62 in x 3.66 in (183 mm x 143 mm x 98 mm) (non display type) |
| Weight | with display ≤3.30 lb (≤1.5 kg)without display ≤2.64 lb (≤ 1.2 kg) |
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