Warning symbols Meaning
Imminent acute danger!
Failure to comply could result in death
orextremelyseriousinjury.
Possible acute danger!
Failure to comply could result in
seriousinjury.
Dangerous situation!
Failuretocomplycouldleadtoinjury
or damage to property.
1. Introduction
This instruction manual contains all the pertinent infor-
mation on the design, installation and opera tion of the
pneumatic actuator types PA11/PA21.
General Information
Hazard notices
Hazard notices are used in this manual to warn you of
possibleinjuriesordamagestoproperty.Pleaseread
and abide by these warnings at all times!
Caution
Danger
Warning
2. EC Manufacturer‘s Declaration
The manufacturer, Georg Fischer Piping Systems Ltd,
CH-8201 Schaffhausen, declares that the pneumatic
actuators PA11/PA21 are not ready-to-use machines
in the sense of the EC Directive concerning machines
and cannot therefore meet all the requirements of this
directive.