Output of NH3 Sensor is returning as ‘0’ need some clarification
Regarding output of the Ammonia measurement of the sensor
Temperature and Humidity works Fine,
I am also having the same issue that the value from register is 00 00 00 00 and for make sure the sensor is working sensor is exposed to Ammonia Gas and it reached its maximum of 100 ppm and after some time it get back to 0 ppm as before and we have another ammonia sensing device for comparing and that device gives the result as 0.5 to 2 ppm in normal condition of a testing area.
And more importantly we are powering the Sensor only when we need data and once the reading is completed then sensor power is in off State so that the sensor is not in continues ON State(as we are looking for remote application battery operated mode so we are not able to keep the Sensor ON for all the time).
And the sensor tolerance is about 5 - 10 ppm as per Datasheet weather this may cause any difference as our comparing device gives only 0.5 to 2 ppm in testing field.
Kindly advice me on this…
And What l have to do for calibrating this sensor to meet our requirement