Portable oxygen detector is a portable, lithium battery powered gas detector. It can detect the concentration of oxygen in the space, and send out sound, light and vibration alarm when oxygen is insufficient or excessive, to remind the instrument carrier to pay attention to safety.
When open it, the instrument will start the self-test function, and then carry out the initial strip reading. When the strip reading reaches 100%, the instrument will enter the detection interface and start the continuous detection work.
When using, pay attention to detect the temperature and humidity of the environment. The instrument can be used under the condition of - 20 ℃ to 50 ℃, humidity 15% ~ 95% RH, atmospheric pressure and atmospheric pressure without a lot of dust. If the operating environment can not meet the working conditions, the service life of the instrument can be extended by reducing the service time of the instrument.
Generally speaking, the life of oxygen sensor is between 1 to 2 years, and it needs to be calibrated every 3 to 6 months. Users can calibrate oxygen directly in the air in a clean environment, and the calibration method can be found in the manual.
It should be noted that the service life of the oxygen sensor is calculated from the time when the instrument leaves the factory, which has nothing to do with when the user uses it. Because the oxygen sensor is electrochemical, the electrolyte in the sensor always reacts, so even if it is not put in use, the sensor is always lost, which is why the manufacturer recommends that the sensor be replaced once a year or two.