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About this manual
1 About this manual
1.1 Validity
This operating manual is for customers of Pfeiffer Vacuum. It describes the functioning
of the designated product and provides the most important information for safe use of
the unit. The description follows applicable EU guidelines. All information provided in this
operating manual refer to the current state of the product's development. The documen-
tation remains valid as long as the customer does not make any changes to the product.
Up-to-date operating instructions can also be downloaded from www.pfeiffer-vacu-
um.com.
1.2 Conventions
Safety instructions The safety instructions in Pfeiffer Vacuum operating manuals are the result of risk eval-
uations and hazard analyses and are oriented on international certification standards as
specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844. In this document,
the following hazard levels and information are considered:
Pictograph
definitions
Instructions in the
text
Work instruction: here you have to do something.
Abbreviations used PPT: Digital Pirani Transmitter
NOTE
Command or note
Command to perform an action or information about properties, the disregarding of
which may result in damage to the product.
CAUTION
Possible danger
Injuries or property damages can occur.
WARNING
Possible danger
Injuries or severe property damages can occur.
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 danger, the disregarding of which may result in se-
rious accidents.
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