YJJ MEMS hydrogen sulfide gas sensor GM 602B component indoor H2S leakage concentration detection

Product Overview

Description

Module power supply voltage	DC4.9V-5.1 V
Module size	16.9mm * 14.1mm * 3.2mm, with two M3 mounting holes
Carbon monoxide	CO 1 -- 1000ppm
Ethanol	C2H5OH 10-500ppm
Hydrogen	H2 1 -- 1000ppm

MEMS hydrogen sulfide gas sensor GM-602B

 

MEMS hydrogen sulfide gas sensor is composed of MEMS process Si based micro hot plate and metal oxide semiconductor materials with low conductivity in clean air.When there is a detected gas in the ambient air, the conductivity of the sensor changes.The higher the concentration of the gas, the higher the conductivity of the sensor.The change in conductivity can be converted into an output signal corresponding to the concentration of the gas using a simple circuit.

Technical indicators

 

Product Model GM-602B

MEMS Hydrogen sulfide gas sensor

Standard package Ceramic package

Detect gas such as hydrogen sulfide and benzene

Detection concentration 0.5 PPM ~ 50ppm(H2S)

Standard circuit condition circuit voltage VC ≤24V DC

Heating voltage VH 1.9V±0.1V AC or DC

Load resistance RL is adjustable

Heating resistance RH 80 ω ±20 ω (at room temperature)

Heating power PH ≤40mW

Sensitive body

Resistance RS 1K ω ~ 30K ω (in 50ppmH2S

Sensitivity S R0(in Air)/Rs(in 50ppmH2S)≥3

Concentration slope α ≤0.6(R200ppm/R50ppmH2S)

Standard test conditions: temperature and humidity 20℃±2℃;55% RH + / - 5% RH

Standard test circuit VC:5.0V±0.1V;

The VH: 1.9 V + / - 0.1 V