Samson 4749, Монтаж и эксплуатация

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1-4 EB 4749 EN
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING !
Crush hazard arising from moving parts on the valve and actuator.
Control valves contain moving parts (actuator and plug stem), which can injure hands or
fingers if inserted into the valve.
Î
Do not touch any moving valve parts while the control valve is in operation.
Î
Before performing any mounting or installation work on the position transmitter, put the
control valve out of operation by disconnecting and locking the supply and control
signal.
Incorrect electrical connection will render the explosion protection unsafe.
Î
Adhere to the terminal assignment.
Î
Do not undo the enameled screws.
Î
Do not exceed the maximum permissible values specified in the EC type examination
certificates when interconnecting intrinsically safe electrical equipment (U
i
or U
0
, l
i
or I
0
,
P
i
or P
0
, C
i
or C
0
and L
i
or L
0
).
The use of unapproved cable glands will render the explosion protection unsafe.
Î
For devices with flameproof enclosure, only use cable glands and screw plugs which
are approved for type of protection Ex d and the certified temperature range.
Opening the position transmitter in potentially explosive dust atmospheres will render
the explosion protection unsafe.
Î
Do not open the enclosure cover of the position transmitter in potentially explosive dust
atmospheres.