Fixed Combustible Gas Detector Controller – GAOTek

Description Overview The GAOTek Fixed Combustible Gas Detector Controller is engineered for continuous detection of flammable gases in industrial settings. Featuring a tri-color LCD for quick status recognition, the unit offers safe non-intrusive setup and sensor replacement. Integrated relays and multiple output options provide flexible integration into safety systems. Built with rugged explosion-proof housing and certified to international safety standards, this detector is ideal for chemical, petrochemical, and process automation industries. Its ease of maintenance and OEM support make it a trusted choice for long-term safety monitoring.   Features Tri-color LCD display: green (normal), yellow (fault), red (alarm) Two programmable alarm relays plus one fault relay 4–20 mA sink/source output and RS-485 Modbus communication Non-intrusive magnetic switch interface for configuration Plug-in sensor design for easy replacement Rugged weatherproof IP66 housing (aluminum or stainless steel) Supports multiple sensor types: catalytic, IR, toxic, and oxygen OEM/ODM customization available   Technical Specifications Specification Details Input Voltage Range 12–32 V DC (nominal 24 V) Max Power Consumption 4.9 W (catalytic); 3.7 W (EC/IR) Inrush Current Max 800 mA at 24 V Alarm & Fault Relays 3 × 5 A @ 250 VAC, programmable Current Output 4–20 mA, sink or source mode Communication RS-485 with Modbus RTU protocol Housing Epoxy-painted aluminum or 316 stainless steel Mounting Built-in plate; optional pipe mounting kits Cable Entries 2 × M20 or ¾″ NPT depending on region Ingress Protection IP66 compliant Operating Temperature Range –40 °C to 65 °C (–40 °F to 149 °F) Sensor Compatibility Catalytic, infrared, electrochemical (toxic/O₂) Remote Sensor Capability Up to 30 m (100 ft) from transmitter Autoconfiguration Automatic with plug-in sensor and magnetic setup Weight Approx. 2 kg (aluminum) or 5 kg (stainless steel) Certifications ATEX, IECEx, UL/cUL, CE, CSA, KTL, PA, GB, CCCF