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Infinite L-com SRAQ-G100 User Manual

Flammable gas sensor module

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FLAMMABLE GAS SENSOR MODULE
User Guide for SRAQ-G100
Product Description
The SRAQ-G100 gas sensor module detects the presence and concentration of flammable gases. This low power device has integrated circuitry
produces a non-linear voltage signal corresponding to the gas concentration. With a detection range for hydrogen of 10 to 1000 ppm and 10-500 ppm
for carbon dioxide, the SRAQ-G100 flammable gas sensor module is well suited for portable devices used to detect leakage of flammable vapors or
other air monitoring equipment.
Features
Features MQ135 sensing element
Highly sensitivity to hydrogen
Indication light
Low power consumption
Analog and TTL level outputs
Fast response
4 pin male header
Applications
HVAC gas leakage alarm
Industrial combustible gas alarm
Portable flammable gas detector
Integration into air quality monitoring devices
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
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Summary of Contents for Infinite L-com SRAQ-G100

  • Page 1 FLAMMABLE GAS SENSOR MODULE User Guide for SRAQ-G100 Product Description The SRAQ-G100 gas sensor module detects the presence and concentration of flammable gases. This low power device has integrated circuitry produces a non-linear voltage signal corresponding to the gas concentration. With a detection range for hydrogen of 10 to 1000 ppm and 10-500 ppm for carbon dioxide, the SRAQ-G100 flammable gas sensor module is well suited for portable devices used to detect leakage of flammable vapors or other air monitoring equipment.
  • Page 2 Technical Parameters Working Voltage 5 VDC ± 0.2 V Working Current <60 mA Gas Detection Hydrogen, ethanol, carbon monoxide Detection Concentration 10  1000ppm (hydrogen) 10  500ppm (carbon monoxide) Preheating Time > 30 mins Response Time >1 sec Recovery Time ≤30 sec Aout (Analog signal) 0 ...
  • Page 3 Mounting Diagram Mount the PCBA to the enclosure with screws. Hole diameter 3mm, pitch distances as per the diagrams given below. Typical Sensitivity Curve The calculation of the resistance ratio according to the output voltage is as follows: The sensor is energized in relatively clean air for more than half an hour and after measure the output voltage value of Aout. VCC is the power supply voltage, 5 VDC RL is the load resistance VRL = Aout = Vair value...