NFW-201-X(A) Series Industrial and Commercial Point-Type Combustible Gas Detector
This product is a highly integrated industrial gas detector that supports dual communication protocols of S-BUS and 4-20mA (HART) branch lines (integrated design of main and branch lines), and has the advantages of flexible networking and construction stocking. It adopts modular sensor design to significantly reduce operation and maintenance costs, and supports infrared remote control operation without opening the cover. It is equipped with a three-color backlight LCD screen to intuitively displ
Product Overview
▅ Product Features
1. S-BUS bus communication facilitates system design and expansion;
2. 4-20mA (Hart) branch system communication, the main branch line is integrated, convenient for construction and stocking;
3. Sensor modular design reduces use and maintenance costs;
4. Infrared remote control control, on-site operation No need to open the cover;
5. LCD liquid crystal display, three-color backlight, real-time display of gas concentration and equipment status;
6. Comes with linkage control output, which can control on-site sound and light or fan/valve;
7. Double outlet structure, convenient for on-site construction;
8. Built-in temperature detection function to ensure accurate and efficient detection of products in various temperature environments.
▅ Applicable scenarios
Petrochemical, coking, steel, emergency rescue, gas, national defense, aviation, chemical industry, environmental protection, pharmaceuticals, papermaking, etc.
Performance Specifications
| Detect gas | Methane/propane/other gases |
| Detection principle | Catalytic combustion type/infrared type/electrochemical type/semiconductor type/PID |
| Sampling method | diffusion |
| Measuring range | (3～100)%LEL or other |
| Alarm set value | Low limit 25% LEL; high limit 50% LEL (factory default value for combustible gases) |
| Alarm error | ±3%F.S |
| response time | ≤30S (according to gas type) |
| Working voltage | 24VDC/three-wire system |
| Protection level | IP66 |
| Explosion-proof level | Exd IIC T6Gb |
| Signal transmission method | S-BUS、4-20mA |
| Signal transmission distance | ≤1500 meters |
| Usage environment | Temperature: -40℃～+60℃; relative humidity ≤93%RH; pressure 86kPa～106 kPa |
| Linkage output | 2 channels of passive switching signals, contact capacity 1A/220V AC or 1A/24V DC |