The GTD3000EX fixed combustible gas detector (LEL) is an industrial explosion-proof device. It continuously monitors the concentration of various combustible gases in %LEL (Lower Explosive Limit), and gives early warnings against gas leakage to prevent fire and explosion hazards. With reliable performance and high protection level, it is widely used in petrochemical, gas industry, storage yards, mines and other hazardous areas with combustible gas risks.
Product Advantage
1. Main Functions
It supports 24/7 continuous monitoring. Equipped with two-stage audible and visual alarms (volume ≥95dB). Standard 4-20mA analog output, optional RS-485 Modbus communication and relay output for connection with DCS, PLC and alarm hosts. Non-intrusive calibration and parameter setting via magnetic wand without opening the housing. Built-in self-diagnosis function can detect sensor faults and circuit abnormalities automatically.
2. Product Features
The flame-retardant aluminum alloy housing features good corrosion resistance. It works stably under wide temperature and humidity ranges. The sensor delivers high accuracy and low signal drift. Easy maintenance makes it an ideal solution for combustible gas monitoring in industrial sites.
Technical Parameters
Item | Specifications |
Detected Gas | General combustible gases |
Measuring Unit | %LEL (Lower Explosive Limit) |
Detection Principle | Catalytic Combustion |
Measuring Range | 0~100%LEL |
Accuracy | ≤±3%F.S. |
Response Time (T90) | <45s |
Alarm Level | Two-level alarm (Low / High) |
Alarm Mode | Audible &Visual Alarm |
Alarm Volume | ≥95dB |
Display | Backlit LCD / OLED |
Signal Output | Standard:4-20mA analog signal Optional:RS-485 Modbus,Relay output |
Calibration Method | Non-intrusive calibration with magnetic wand |
Explosion-proof Grade | Ex d IIC T6 Gb |
Ingress Protection | IP65 |
Operating Temperature | -20℃ ~ +60℃ |
Operating Humidity | 10%RH~90%RH (Non-condensing) |
Housing Material | Flame-retardant Aluminum Alloy |
Installation | Wall-mounted,Pipe-mounted |
Sampling Method | Diffusion type (Remote sampling optional) |
Self-diagnosis | Automatic detection and indication for sensor and circuit faults |
Product Uses
1. Petrochemical industry: Refineries, chemical plants, oil & gas tanks and pipelines.
2. Gas industry: Gas stations, regulator stations and boiler rooms.
3. Coal & mining: Coal mines and coal gasification plants.
4. Warehousing & logistics: Hazardous chemical and oil storage areas.
5. Municipal & buildings: Utility tunnels, parking lots, kitchens and sewage plants.
6. Manufacturing: Spraying, printing and plastic workshops.
7. Energy & heating: Power plants, heating stations and generator units.
FAQ
Q: What's the lead time for orders?
A: Within 20 days after first payment.
Q: Do you provide sample? Free or charge?
A:Free samples are available, courier cost is borne by the buyer.
Q: How do you guarantee quality?
A: Always a pre-production sample before mass production;
Always final inspection before shipment.
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.
