Overview
Enviro Test Construct 4 in 1 gas detector is a fixed type of detector that can continuously monitor four gases in operation at the same time, that is, flammable gas, oxygen, carbon monoxide, and hydrogen sulphide gas concentration. The detector uses natural diffusion to detect gas concentration. It uses imported electrochemical sensors, catalytic combustion sensors, infrared sensors, or PID sensors. It has excellent sensitivity and excellent repeatability. The LCD liquid crystal suitable for factory applications displays the concentration of leaked gas. Start the sound and light alarm signal or drive the exhaust system immediately when the preset alarm point is exceeded. The international standard RS485 digital signal interface can be connected to the factory computer software. The detector uses embedded micro-control technology. The machine’s performance ranks in the domestic leading level, this product is suitable for petroleum, chemical industry, fire protection, and other places that need to detect gas concentration.
Features
- Accurate
- Easy to use
- Strong
- Security
Technical Specifications
| Gas detected | EX, O2, CO, H2S (support other gas combinations) |
| Sensor type | Support electric chemical, Catalytic, Semiconductor, PID, infrared sensors |
| Detection method | Diffusion, Pump |
| Working Voltage | 24+ V DC -3.6 V DC |
| Power | 1.6 W |
| Response Time | ≤ 30 S (T90) |
| Installation | Wall Mounted, Pipeline (Thread Size: G 1 by 2) |
| Gas | EX, O2, CO, H2S |
| Range | 0% to 100% LEL, 0% to 30 % vol, 0 ppm to 1000 ppm,0 ppm to 100 ppm |
| Resolution | 1% LEL, 0.1% Vol, 1 ppm, 1 ppm |
| Deviation | ±3% FS |
| Repetition | ≤2% |
| Relay | Two relay output, free contact: 30 V DC 1A or 125 V AC 0.3 A |
| Thread size | M20 × 1.5, G 1 by 2 |
| Degree of protection | IP65 |
| Explosion proof | Ex d llc T6 Gb or Ex tD A21 IP65 T 176 °F (80 ℃) |
| Shell material | Die Casting aluminium, Explosion proof and anticorrosion |
| Cable | > 4 × 0.0591 in (1.5 mm) 2 Shielded cables |
| Working Humidity | ≤ 95% RH, no condensation |
| Working Pressure | 86 Kpa to 106 Kpa |
| Working Temperature | 14 °F to 122 °F (-10 ℃ to 50 ℃) |
| Dimension | 10.27 in × 6.96 in × 3.54 in (261 mm × 177 mm × 90 mm) |
| Weight | 5.73 lb (2.6 kg) |
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