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the parameter set in the factory can be restored. Please make a confirmation
before restoring factory setting every time, because restoring factory setting
would cover all parameters set by customer, including the calibration parameter.
After restoring factory setting, if the extent of zero wander is bigger, enter into the
calibration interface, and make the zero clearing operation.
3.5.8. About this machine
After entering into the interface, you can check the software version of the
system, and relevant information.
3.5.9. Return
Pressing CONFIRM can return to the measuring interface, you also can press
return key to return to the measuring interface.
IV. Basic calibration
The product has been calibrated before leaving factory. If the user has the
calibration conditions, they can make the periodic calibration according to the
manual in the process of using; if the calibration is not convenient for the user,
they can go to the relevant metrological service or mail the product to our
company to make the paid calibration.
In order to guarantee the measuring accuracy of the probe, the normal
calibration period of the instrument is 3-6 months. The gas detected is high
concentration in the application environment; the calibration period can be
shortened properly. In order to guarantee the measuring accuracy of the
instrument, the instrument should be calibrated at regular intervals, and record it.
V. After-sale service Information
Before leaving factory of the products, the products have been calibrated and
