Samson EB 3773 Series, Монтаж и эксплуатация

Страница: 29 / 68

EB 3773 EN 8-1
Malfunction
8 Malfunction
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Î
For mounting and electrical installation in
hazardous areas, observe the explosion
protection approvals as well as the
relevant electrotechnical regulations and
the accident prevention regulations that
apply in the country of use. EN 60079-
14 applies in Europe: Electrical
installations design, selection and
erection
Î
Installation, operation or maintenance of
the limit switch must only be performed
by personnel who has undergone special
training or instructions or who is
authorized to work on explosion-
protected devices in hazardous areas.
Risk of fatal injury as a result of electro-
static discharge at the housing.
Î
Ensure that the device, cables and other
plant components cannot rub against
each other.
Proceed as follows in the event of a malfunc-
tion:
Î
Check attachment.
Î
Check the configuration of the mounting
parts.
Î
Check power supply/electrical signal.
Î
Check the control valve to ensure it func-
tions properly.
8.1 Emergency action
Plant operators are responsible for emergen-
cy action to be taken in the plant.
Emergency action in the event of valve fail-
ure is described in the associated valve doc-
umentation.
DANGER !
DANGER !
Tip