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HYDROGEN SULPHIDE (H S) SENSOR MODULE User Guide for SRAQ-G018 Product Description The SRAQ-G018 gas sensor module detects the presence and concentration of Hydrogen sulfide and other sulfur based organic vapors. Integrated circuitry produces a non-linear voltage signal corresponding to the gas concentration. With a detection range of 10 to 200 ppm, this industrial sensor module can be integrated into portable H2S detectors or other Air quality monitoring equipment.
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Technical Parameters Working Voltage 5 VDC ± 0.2 V Working Current <150 mA Gas Detection Hydrogen sulfide 10 200 PPM (Hydrogen sulfide) Detection Concentration Zero Voltage 0.3~0.9 V (This voltage is output without H Preheating Time > 30 mins Response Time ≤1 sec Recovery Time...
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Notes Confirm the polarity and the voltage of the power supply before powering ON the sensor. The analog output of this module is non-linear. When connect to microcontroller, it should be connected to ADC interface of the microcontroller. The relationship between the resistance ratio and the concentration is a logarithmic relationship. For more info on typical sensitivity curve, check MQ136 Probe on internet.
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