MICROpeL 75C Combustible Gas Sensor Key Features & Benefits:
•  ATEX, UL and CSA Approvals
•  Withstands EN/IEC 60079-0 impact test
•  Enhanced H2S and silicone poison resistance
•  Reduced Orientation Effects

MICROpeL 75C Combustible Gas Sensor Performance Characteristics

MEASUREMENT
Operating Principle	Catalytic Oxidation
Gases Detected	Combustible gases
Suitable for	Methane, ethane, propane, butane, pentane,  hexane, carbon monoxide & hydrogen
Unsuitable for	Higher hydrocarbons, alcohols, ketones,  esters, hydrogen sulfide and other sulfur  containing compounds
Range	0-100% LEL
Sensitivity*	31 ± 5 mV/%methane
T90 Response Time*	<5 seconds (methane)
Poison Resistance	Resistance to H2S poisoning  Superior silicone resistance
H2S Filter Lifetime	Typically 1000 ppm hr
Linearity	Linear up to 3% methane
ELECTRICAL
Operating Voltage	3.30 ± 0.02 VDC
Detector Operating Current	78 ± 6 mA
Maximum Power Consumption	295 mW
Resolution	1% LEL
MECHANICAL
Weight	2 g (nominal)
Orientation Sensitivity	None
ENVIRONMENTAL
Operating Temperature Range	-20 ºC to +55 ºC
Operating Pressure Range	1 atm ± 20%
Operating Humidity Range	0-90% RH non-condensing
LIFETIME
Long Term Span Drift*	<5% signal/month
Long Term Zero Drift*	<5% LELmethane/month
Recommended Storage Temp	0 ºC to 20ºC
Shelf life	6 months in sealed container
Warranty	12 months from date of despatch

* Specifications are valid at 20°C, 50%RH and 1013 mbar at a flow rate of 300 ml/min.
   Performance characteristics outline the performance of sensors supplied within the first 3 months. Output signal can drift below the lower limit over time.