About this manual
5
1.2.2
Pictographs
1.2.3
Instructions in the text
Work instruction: here you have to do something.
1.2.4
Abbreviations
DCU:
Display
Control
Unit
HPU:
Handheld Programming Unit
TC:
Electronic drive unit for turbopump
TPS:
Mains
pack
1.2.5
Symbols used
The following symbols are used consistently throughout the diagrams:
High vacuum flange
Fore-vacuum connection
Electric connection
Air cooling unit
Venting connection
Sealing gas connection
Exhaust connection
Prohibition of an action or activity in connection with a source of danger,
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
