Ac current sensor & over-current protector (6 pages)
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...
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