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MD61 Thermal Conductor Gas Sensor

  • • Detection Gas: CH4, H2, Inert Gas
  • • Detection Range:0~100%VOL
  • • Application: Industrial spot for CH4, H2, and other inert gas detecting

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  • Principle Introduction
Principle Introduction:
Winsen Electronics manufacture and sell combustible gas sensor, flammable gas sensor, CH4, H2, and other inert gas detection sensor MD61.
MD61 gas sensor consists of an active element and a reference element with the same resistance, both elements are placed in a Wheatstone bridge circuit. Along with the analyzing gas contents change, the overall thermal coefficient of mixed gases changes correspondingly. When the active element meet the combustible gas, its resistance become smaller, and when It meet reducing gas, its resistance become larger(air background). Then the output voltage of the bridge changes and the voltage variation rises in direct proportion to the gas concentration. The reference element performs as a benchmark while for temperature compensation.
Applications :
Industrial spot for CH4, H2, and other inert gas detecting
Technical parameters :
Detection Gas CH4, H2, Inert Gas
Type Thermal conduction
Standard Encapsulation Metal, Metallurgy powder mesh
Detection Range 0~100%VOL
Working Voltage(V) 3.0±0.1 (DC)
Working current(mA) ≤120 mA
Sensitivity (mV/10%CO2) ≥15
linearity ≤8%
Response time (90%) ≤15 s
Resume time (90%) ≤30 s
Using Environment -20~+50°C < 95%RH
Storage Environment -20~+70°C < 70%RH
Dimension(mm) 19×9.5×14
Reference Circuit :
 

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