Maintenance and care
56
Edition 05/2014
PlasmaQuant PQ 9000
4. Remove the deflection mirror and carefully set
it aside.
Attention!
On no account touch the surface of the mirror
with your fingers.
5. Hold one hand with glove under the cone
opening and carefully push out the window
from the top using a (wood or plastic) rod.
Catch the window as it falls out.
6. Attach and tighten the deflection mirror.
7. Screw on the cover.
8. Replace the cone window and screw the cone in the opening (as described above).
8.2.8
Checking the gas system for leaks
Check for leak tightness in the scope of the weekly safety check or before placing the
PlasmaQuant PQ 9000 into operation if the device has been previously disconnected from the
gas supply system.
For this purpose, close the shut-off valve of the gas supply system and check the pressure at
the downstream manometer. If the pressure drops sharply, search for leaks in the gas supply:
1. Open the shut-off valve.
2. Brush connections with a heavily foaming liquid (e.g., soap solution). If foam bubbles form
at the gas connections when starting up, disconnect the gas supply.
3. Unscrew the gas connections and check for correct fitting. If there are sealing rings, check
them. Replace worn out sealing rings.
4. Tighten the gas connections, observing the correct positioning and check again for gas
leaks.
Figure 21
Plug-in connectors for gas connections
