Sinocom 深圳铭之光 4CM 气体传感器

MEASUREMENT

Operating Principle：3-electrode electrochemical

Detection Range ：0 to 2000 ppm

Filter ：To remove acid gases See note on Page 2

Filter Capacity ：> 20000 ppm hour

Sensitivity ：70 ± 15 nA/ppm

Response Time (T90)* (for concentrations up to 500 ppm)：≤10 s at 20°C

Recovery Time* (from 100ppm down to <2 ppm) ：< 90 s (typically < 30 s)

Baseline Offset (clean air)* ：< ±2 ppm CO equivalent

Baseline Shift: 

-40°C to -20°C ：< ±3 ppm CO equivalent

-20°C to +20°C：< ±2 ppm CO equivalent

 +20°C to +55°C ：Typically < +4 ppm (+9 ppm max.)

Repeatability：< ±2% CO equivalent

Linearity：Linear up to 2000 ppm

ELECTRICAL

Resolution (Electronics dependent)：<1 ppm typical

Recommended Load Resistor ：5 Ω

Bias Voltage：Not required

MECHANICAL

Housing Material Pin ：Noryl 110

Material ：Gold over nickel plated brass

Weight ：5 g (nominal)

Orientation Sensitivity：None

ENVIRONMENTAL

Intended Use:Portable detectors for most Life Safety applicationsOperating Temperature 

Range:-40°C  to +55°C See Characterisation Note

Temperature Coefficient: 

at -40°C :45 to 65% of signal w.r.t. +20°C

at -20°C :73 to 82% of signal w.r.t. +20°C

at +55°C :105 to 111% of signal w.r.t. +20°C

Operating Pressure Range:800 to 1200 mbar

Operating Humidity Range:15% RH to 95% RH non-condensing