CITY 4P75C 4P-75C Catalytic Combustion Sensor CH4 Methane LEL PM483-000

CITY 4P75C 4P-75C Catalytic Combustion Sensor CH4 Methane LEL PM483-000

Parameters

Brand: 4P75C
Model: OOM204
Origin: UK

1. Gas Detection
Range: 0~100% LEL (Lower Explosive Limit)
Applicable gases: Methane, Ethane, Propane, Butane, Pentane, Hexane, CO, Hydrogen
Not suitable for: High-carbon hydrocarbons, alcohols, ketones, esters, high-concentration H₂S, and other sulfur-containing gases
Sensitivity: 24±4 mV / % Methane
T90 Response: Methane <20s
Linear Range: 0~3% Methane with excellent linearity
Anti-poisoning advantage: Enhanced resistance to silicone and H₂S, H₂S filter layer lifespan about 1000 ppm·hours

2. Electrical Parameters
Operating Voltage: 3.0 VDC
Operating Current: 74±6 mA
Max Power: 263 mW
Output Method: Differential millivolt bridge signal, requires matching catalytic detection circuit

3. Environmental Specifications
Operating Temperature: -20℃ ~ 55℃
Humidity: 0~90% RH, no condensation
Pressure: Standard atmospheric pressure ±20%
Mechanical Weight: 24g, stainless steel casing, three-pin straight plug