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MC series catalytic(hot wire) gas sensor
HANWEI catalytic bead sensor operate on the catalytic combustion principle, the gas sensor consists of an active element and a reference element with the same resistance, At the heart of each element is a heated platinum coil whose resistance varies with temperature, in the presence of the gas, the active element will burn the gas on its surface, raising the temperature of the platinum coil, a differential is created in the resistances of the two elements. When both elements are placed in a wheatstone bridge circuit, this differential acts to throw the bridge out of balance, producing a signal which is proportional to the gas concentration.
linear output signal for gas concentration.
Virtually unaffected by temperature and humidity,
remarkable reproducibility and accuracy.
Domestic and industrial gas detecting for combustible gas, natural gas, LPG, coal gas, alkane etc and organic solvent steam like gasoline, alcohol, ketone, benzene and so forth.
Combustible gas leak alarm
Combustible gas detector
Gas densitometers
MC101: Low-cost
MC106 : metal housing
MC112 : anti-explosion design
MC115 : Miniature separateness configuration
MC116 : separateness configuration
MR type gas sensor through gas absorbtion on the metal oxide semiconductor generates hot conduction and electronics conduction change principal, the white coil resistor change when detecting gas concentration. MR511 consists detecting element and compensation element, both elements are placed in a wheatstone bridge circuit, when the combustible gas appears, the detecting element resistor reduces, bridge circuit voltage output changes, the voltage will increase according to the gas concentration increase, the compensation element refers to temperature compensation effection.
Features
High sensitivity, large output
Fast primary stability time, quick response
Remarkable reproducibility and reliability.
Goode selectivity, avoid smoke ethanol disturb
Low consumption, miniature design
Applications
Domestic, Industrial spot natural gases, LPG.
COAL GAS、 alkyl etc combustible gas concentration detection.
Combustible gas leak alarm
Combustible gas detection
MR511 Hot-wire type gas sensor for combustible gas.
MR513 Hot-wire type gas sensor for alcohol
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