It is recommended that all calibration components are connected before
starting a calibration as it is necessary to apply test gas to the device
during a countdown.
Wait for calibration gas. After starting any calibration, calibration gas (zero or test
gas) must be provided until the calibration is completed.
Calibration steps
Zero calibration please refer to M-01 in Chapter 4.2.2; Gain calibration please refer
to M-02 in Chapter 4.2.2.
Press “OFF” can exit calibration procedure at any moment and device still
use the last calibration result of detector when exit.
A 4 digits password is used to lock the menus that can be modified only by
certificated
and authorized personnel.
The default password is 0000.
After entering the password menu, set the number from left to right, and the flicker bit
means that the bit is being edited.
(1) Press “+” or “-” to modify the number.
(2) Press “ON” to enter the next bit (thousands->hundreds->tens->units).
(3) After all of 4 digits has been entered, the password becomes effective.
5
Maintenance
5.1
Sensor replacement
Danger !
Remove and reinstall the sensors carefully, ensuring that the components
are not damaged; otherwise, the accuracy may be adversely affected,
wrong readin
gs may occur, and persons relying on this product for their
safety may sustain serious personal injury or death.
When replacing a sensor, please use M-05 to reset the sensor service time
counter.
Note: After the sensor is replaced, the instrument must be calibrated
again.
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