Samson EB 3773 Series, Mounting And Operating Instructions

Page: 57 / 68

EB 3773 EN 14-15
EX 3773
1 of 5
EXPLOSION PROTECTION INSTRUCTIONS · TYPE 3773
Version 2019-03-21
1 Safety instructions for ATEX and IECEx
The following safety instructions and safety-related notes must be included in the operating and
mounting instructions as required according to Clause 30 of IEC/EN 60079-0 and the Directive
2014/34/EU.
The device must be mounted, started up and serviced by fully trained and qualified personnel
only who are familiar with the product; the accepted industry codes and practices are to be ob-
served. According to these mounting and operating instructions, trained personnel refers to in -
dividuals who are able to judge the work they are assigned to and recognize possible hazards
due to their specialized training, their knowledge and experience as well as their knowledge of
the applicable standards.
Explosion-protected versions of this device must be operated only by personnel who has under -
gone special training or instructions or who is authorized to work on explosion-protected devic -
es in hazardous areas.
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the control valve by the process medium, the operating
pressure, the signal pressure or by moving parts by taking appropriate precautions. If inadmis -
sible motions or forces are produced in the pneumatic actuator as a result of the supply pres-
sure, it must be restricted using a suitable supply pressure reducing station.
Proper shipping and storage are assumed.
1.1 Electrical connections
Risk of fatal injury due to the formation of an explosive atmosphere.
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
Incorrect electrical connection will render the explosion protection unsafe.
Adhere to the terminal assignment and observe correct polarity.
Do not undo the enameled screws.
Do not exceed the maximum permissible values (U
i
, l
i
, P
i
, C
i
, L
i
) specified in the EC type exami-
nation certificates when interconnecting intrinsically safe electrical equipment.
DANGER
!
WARNING
!