Product Introduction
The point-type gas detector is a new online detection instrument produced by our company. It features a high-brightness digital display, a high-decibel sound and light alarm, and a high-performance imported sensor. Supported detection principles include electrochemical, catalytic combustion, infrared, PID and semiconductor, and it can detect more than 500 kinds of gases. The product offers stable performance, high accuracy, long service life and easy operation.
The detector converts the gas concentration in the air into a digital signal. It can output a standard 4–20 mA current signal, or a two-wire or four-wire RS485 (MODBUS-RTU) signal, and is compatible with secondary instruments, PLC and DCS systems, and data acquisition modules. It offers long transmission distance and good anti-interference performance.
Product Features
Technical Specifications
| Detection Principle | Catalytic combustion, electrochemical, infrared, PID, semiconductor |
| Detection Gas | Toxic, flammable and explosive gases, oxygen, TVOC, etc. |
| Sampling Method | Free diffusion |
| Measuring Range | 0–1000 ppm; 0–100 %LEL; 0–100 %VOL |
| Resolution | 0.01 / 0.1 / 1 |
| Accuracy | ≤ 3% FS |
| Adjustment Method | Buttons and remote control (remote control optional) |
| Response Time | Combustible gas: < 30 s; toxic gas: < 60 s |
| Recovery Time | Combustible gas: < 30 s; toxic gas: < 60 s |
| Ambient Temperature | -20°C to 55°C |
| Relative Humidity | ≤ 95% RH |
| Explosion-Proof Type | Flameproof enclosure |
| Explosion-Proof Rating | Ex d IIC T6 Gb |
| Protection Level | IP66 |
| Power Supply | DC 24 V ± 12 V |
| Power Consumption | ≤ 3 W |
| Output Signal | 4–20 mA, RS485 |
| Fixing Thread | M20 × 1.5 or G1/2 |
| Cable Requirements | 3-wire: ≥ 1.5 mm² × 3; RS485 4-wire: ≥ 1.5 mm² × 4; RS485 2-wire: ≥ 2.5 mm² × 2 |
| Max. Transmission Distance | ≤ 1000 m |
| Weight | ≤ 1000 g |
| Pressure Range | 86–106 kPa |
Application Fields
Refineries, chemical plants, LPG stations, boiler rooms, refueling stations, spray rooms and other industrial sites.
