20
Figure 18
After entering the calibration interface, the sensor and gas sampling pump will start
working and pumping the SF6 gas in standard density of 200ppm into the handle
probe. Touch “Confirm” key on the panel and the calibration will start and last for 10
seconds after a warning buzz is heard. The instrument will automatically calibrate the
data curve. Please refer to Figure 19 below:
Figure 19
After 10 seconds, the calibration will stop and cue works will appear on the interface that the
calibration has been completed, and the instrument will turn to Function Selection interface in 2
seconds. Please refer to Figure 20 below:
Figure 20
3.19 When the measuring process is finished, keep pressing the “Power” key on the panel for
over 2 seconds. After the instrument buzzes for twice, it will turn to the power-off
interface and shut off automatically in 5 seconds. Now the whole measuring process is
