8
1 detection switch
2 power switch
3 power outlet
4 ac fuse (0.5A)
5 dc fuse (5A)
6 the host
Seven of the needle valve
8 handheld probe
9 LCD
10 buttons
11 ionization chamber observation window
12 gas electric tube
IV. Operation procedure and method
1. Plug in the power supply and turn on the "power switch", then the motor's
starting sound can be heard.
Turn on the "detection switch". If you can see a faint dark purple excitation light
(" initiation ") in the window above the probe, and the base value of the lower
side of the LCD screen is close to the value marked on the nozzle of the
instrument, the measurement can start.(after starting up, the large value in the
middle of the display screen is the concentration of SF6 gas detected in real
time, so it is unnecessary to check the table again. The small value below is
the base value, which is only used as a reference for the stability of the
instrument.)
3. If not, you can plug the inlet of the probe (needle valve) with your finger to
improve the vacuum of the vacuum system.If the probe is blocked within 10
seconds, wait 10 minutes and then block the probe again. The time of blocking
the probe shall not exceed 10 seconds, otherwise the relevant electronic
devices will be damaged.
4. The instrument will start up for 60 seconds and set the zero point by
self-calibration. If the zero point is not reached within 60 seconds, the probe
will be held in the air and press "cancel" to set the zero point.
5. After 10 minutes, after the instrument reaches a certain vacuum degree and
the base value is basically stable, move the probe to the place under
