The Eranntex MIC-300-Ex Combustible Gas Transmitter features explosion-proof, lightning-proof, anti-static, and reverse polarity protection, as well as immunity to EMI/EMC electromagnetic interference and pulse surge current surges. It complies with the latest national standards and has obtained the CMC Measuring Instrument Production License and explosion-proof certification. It supports a three-wire 4-20mA standard signal output and two relay outputs, with optional voltage output. It also integrates a standard RS485 (RTU) bus output and an optional integrated audible and visual alarm. It can be connected to a computer for real-time monitoring, storage, analysis, and printing of on-site concentration data. It features automatic zero tracking and drift prevention, and OEM/ODM customization is available.
Detected Gas: Combustible Gas
Detection Principle: Catalytic Combustion, Optional Non-Dispersive Infrared Detection (MIC-300-Ex-IR)
Detection Range: 0-100% LEL, 100% Volt, Other Ranges Available
Resolution Accuracy: 0.1% LEL, 0.01% Vol
Detection Method: Diffusion measurement, with options for pipe, flow-through, and pump-based measurement
Mounting Method: Wall-mounted, with options for pipe and flange mounting
Detection Error: ≤±3% (F.S.), higher accuracy available on request
Response Time: T90 ≤30s
Output Signal: Three-wire 4-20mA, relay (passive contact output), RS485 bus output
Alarm Method: Audible and visual alarm (optional), one or two passive contact (dry contact) outputs
Operating Environment: ±30% atmospheric pressure, -40°C to +70°C; higher temperature environments require custom preconditioning or an optional system
Relative Humidity: ≤95% RH (non-condensing); higher humidity environments require custom preconditioning or an optional system Environmental use requires a custom or optional pretreatment system.
Operating voltage: 12-30V (DC), standard power supply: 24V, 1A or greater DC switching power supply, or regulated power supply.
Sensor life: 2-3 years for catalytic combustion, 5-10 years for infrared.
Explosion-proof type: Flameproof, Exd II CT6.
Connecting cable: For three-wire 4-20mA, use a three-core shielded cable; for RS485, use a four-core cable. For distances exceeding 1000 meters, use a single wire diameter of ≥1.5 mm²; ground the shield.
Electrical connector: 3/4 NPT, 1/2 NPT, or M20 x 1.5 optional.
Ingress protection: IP65.
Dimensions: 230 x 180 x 60 mm or 230 x 230 x 60 mm (including audible and visual alarm).
Weight: Approximately 1.2 kg.
Malaysia
