1. How to adjust the instrument display value if it is inaccurate?
After the equipment has been used for a period of time, the zero point drift will occur. At this time, the instrument can be zero-point calibrated. The operation is as follows: Press the right button while holding down the left button to enter the system menu, select system settings, and enter device calibration. After entering the six-one password, select zero point calibration (oxygen select gas calibration), press the OK key to complete the setting.
When the instrument is used for about one year, it needs to be calibrated by gas. Customers can contact our company for free calibration. If standard gas is available, they can also calibrate by themselves.
2. The service life of the instrument and battery life.
The service life of the sensor is related to the customer's usage environment. Under normal circumstances, the service life of the sensor is about 1-2 years. This instrument is powered by lithium batteries. When the battery is low, please shut down and charge in time. If the alarm instrument crashes, it can be restored through the reset button on the back of the instrument.

3. The time display of the instrument is wrong.
When the instrument's time display is different from the real time, setting calibration can be performed. The operation is as follows: hold down the left button and press the right button at the same time to enter the system menu, select system settings, and enter the time setting. The arrow points to the current time to be adjusted. After the right button is selected to select this function, the left button is used to change the number. After the adjustment is completed, you can return to the main interface.
4.Does the gas detector need to be tested and calibrated frequently?
Generally speaking, the instrument can be calibrated once a year to meet the user requirements in ordinary environments. If it is a special environment or there are strict data requirements for testing instruments, it is recommended to perform calibration every 3 months. The more times it is calibrated, the less likely the detection instrument will drift and the more accurate the detection effect will be.
Calibrating the instrument regularly and regularly are essential tasks to ensure accurate measurement. This can not only extend the normal service life of the instrument, but also make the test results more accurate.













