How to adjust the inaccurate value displayed by the instrument?
I. After the equipment is used for a period of time, there will be zero drift. Under the environment without harmful gas, the displayed value is not 0 (oxygen 20.9). At this time, the instrument can be calibrated at zero. The operation is as follows: briefly press the power on key, select ZER0 (FULL for the oxygen detector) by pressing the up and down keys, and press the OK key to complete the reset.
When the instrument is used for about one year, gas calibration is required. Customers can contact our company for free calibration. If there is standard gas, they can also calibrate themselves.
II. The service life and battery life of the instrument.
The service life of the instrument is related to the customer's service environment. Normally, the service life of the instrument is about 1 to 2 years.
The battery of this instrument cannot be charged. The battery life is generally about 8 months. Please replace it with a new battery after the battery is exhausted. If the alarm device crashes, it can also be recovered by loading and unloading the battery