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Infinite L-COM SRAQ-G018 User Manual

Hydrogen sulphide (h2s) sensor module

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HYDROGEN SULPHIDE (H
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.
Features
Features MQ136 sensing element
Highly sensitivity and selectivity
Good repeatability and stability
Wide detection range 10  200 ppm
Analog and TTL level outputs
4 pin male header
Applications
Outdoor air quality monitoring
Factory settings
Commercial sites - School, hospitals etc.
Smart buildings
Other areas where H2S is a concern
Thank you for choosing L-com product. To ensure safe, accurate performance and product longevity, please take a moment to familiarize yourself
with this manual before powering the device. Please keep it handy for future reference. In case of any questions regarding the installation or use of
product, please call us at 800.341.5266.
Reach out to us at customerservice@l-com.com and visit our website at www.l-com.com
S) SENSOR MODULE
2
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Summary of Contents for Infinite L-COM SRAQ-G018

  • Page 1 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.
  • Page 2 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...
  • Page 3 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.