Ac current sensor & over-current protector (6 pages)
Summary of Contents for Infinite L-com SRAQ-G019
Page 1
AMMONIA (NH ) SENSOR MODULE User Guide for SRAQ-G019 Product Description The SRAQ-G019 gas sensor module detects the presence and concentration of Ammonia, as well as other organic amines such as trimethylamine and ethanol. Integrated circuitry produces a non-linear voltage signal corresponding to the gas concentration. With a detection range of 5 to 500 ppm, the SRAQ-G019 industrial sensor can be used in areas such as public restrooms, manufacturing facilities, warehouses and other commercial buildings where ammonia gas concentration is a concern.
Page 2
Technical Parameters Working Voltage 5 VDC ± 0.2 V Working Current <150 mA Gas Detection Ammonia (NH 5 500 PPM (NH Detection Concentration Zero Voltage 0.5~1.5 V (This voltage is output without NH Preheating Time > 30 mins Response Time ≤3 sec Recovery Time ≤60 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 MQ137 Probe on internet.
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