Samson 3278, Перевод оригинальной инструкции

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EB 8321 EN 6-1
Operation
6 Operation
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
Risk of personal injury due to exhaust air
being vented.
The actuator is operated with air. As a result,
air is vented during operation.
Î
Wear eye and hearing protection when
working near the actuator.
Risk of personal injury through incorrect
operation, use or installation as a result of
incorrect information on the actuator.
After any adjustment or conversion work, the
details on the actuator nameplate may no
longer be correct. This applies to the bench
range, for example.
Î
Immediately renew any nameplates or
labels with incorrect or outdated infor-
mation.
Î
Add any new values to the nameplate. If
necessary, contact SAMSON to obtain a
new nameplate.
6.1 Throttling service
− The Type 3278 Pneumatic Rotary Actua-
tor with 160 or 320 cm² actuator area is
designed for a maximum supply pressure
of 6 bar when used for throttling service.
− The handwheel of valves with actuators
fitted with a handwheel must be turned
sufficiently far enough for normal opera-
tion to ensure that the opening angle
stops are performed by the stop bolts
and not the handwheel. Use the lock nut
to secure the neutral position of the
handwheel.
6.2 Manual mode (versions
with handwheel only)
In the manual mode, the valve can be
opened and closed by the handwheel. The
valve position is independent of the signal
pressure.
WARNING ! WARNING !
WARNING !