4
About this manual
Pictographs
Instructions in the
text
Work instruction: here you have to do something.
Symbols used
The following symbols are used consistently throughout in all illustrations:
Vacuum flange
Exhaust flange (fore-vacuum flange)
Electrical connection
Measuring connection for pressure or gas temperature
Sealing gas connection
Prohibition of an action to avoid any risk of accidents, the disregarding
of which may result in serious accidents
Warning of a displayed source of danger in connection with operation of
the unit or equipment
Command to perform an action or task associated with a source of dan-
ger, the disregarding of which may result in serious accidents
Important information about the product or this document
M
SG
