Ac current sensor & over-current protector (6 pages)
Summary of Contents for Infinite L-COM SRAQ-G009
Page 1
COMBUSTIBLE GAS SENSOR MODULE User Guide for SRAQ-G009 Product Description The SRAQ-G009 gas sensor module detects the presence and concentration of flammable gases such as butane, propane, methane as well as other gases containing carbon monoxide. Integrated circuitry produces a non-linear voltage signal corresponding to the smoke and gas concentrations. With high sensitivity, it can detect smoke in the range of 100-1000ppm and flammable gases in the range of 300 ...
Page 2
Technical Parameters Working Voltage 5 VDC ± 0.2 V Working Current <150 mA Gas Detection Liquefied gas, methane, butane, LPG Detection Concentration 300 10000ppm (CH4 LPG) 0.5 1.5 V (This voltage is output without CH4) Zero Voltage Preheating Time >30 mins Response Time >3 sec...
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 MQ5 Probe on internet.