GuaRdboX
-
series
IOM (
Installation, Operation & Maintenance Manual) 0100-ENG
rev.5
2
Eisenbau s.r.l. a socio unico
Via T.A:Edison, 16 20090 Cusago (MI) Italy
Phone : +390293562116 Fax: +390293567735
Guardbox production unit : Via XXIV Maggio, 13
25017 – Sedena di Lonato (BS)
Phone : +390309131240 Fax: +390309130946
Ex – Equipment Marking
The certification relies upon the following materials used in its construction: Box housing made up of body and cover is in Stainless Steel
AISI316L, or Aluminium Alloy EN AB ed AC 44300 Al Si 12 (Fe) (a). In order to comply with the requirements for the equipment protection
level (EPL), the material of the enclosure must be chosen as follow:
Table 1 – Relation between EPL and type of material of the enclosure
EPL
(explosion protection level)
Enclosure material
Gb / Gc Aluminium Alloy EN AB ed AC 44300 Al Si 12 (Fe) (a) or Stainless steel 316L (CF3M)
Box gasket is in silicone rubber. It is the responsibility of the user to ensure that all the following safety instructions, essential health and
safety requirements and warnings are observed during installation, operation and maintenance of the product:
3.1 These instructions must carefully read before proceeding with the limit switch box installation and saved for future reference.
3.2 Installation should be carried out by suitably trained personnel to an applicable Code of Practice (eg IEC/EN60079-14 &
IEC/EN61241-14).
3.3 If the box is integrated in a system or in a plant, the customer shall ensure that the local safety regulations are observed.
3.4 Before proceeding with the wiring, make sure that the characteristics of the electrical connection are compatible with electrical
operation parameters of operation of the box.
3.5 Do not exceed the limit switch box performance limitation. Exceeding the limitation may cause damage to the limit switch,
actuator and valve.
3.6 Where the temperature under rated conditions is higher than 70°C at the entry point or 80°C at the branching point of the
conductors, use field wiring suitable
to work at minimum and maximum ambient operating temperature indicated on the
external nameplate of the box.
3.7 Operating the box over temperature limits will damage internal and external components.
3.8
RISK OF SEVERE INJURIES!: Do not open the box when energized or in presence of explosive atmospheres.
3.9 Guardbox products are supplied with plastic caps fitted on the customer requested cable entries. Task of these caps is to
protect the internal circuits of the products in the time between manufacturing and commissioning. It is responsibility of the
installing personnel to replace the protective caps with suitably certified and temperature rated cable glands and blanking
plugs permitted for use with ATEX/IECEx flameproof enclosures.
3.10 Product IP rating is ensured only by the use of suitable IP rated cable glands and plugs.
3.11 All cable entry devices shall be certified in type of explosion protection ‘d’ and suitable for the area classification in accordance
with the National Electrical Code.
3.12 Any unused cable entries must be sealed with suitably certified stopping plugs.
and certificate
contacts
category and
applied protection
concept
explosion
protection
symbol
markings
Protection
degree
Identification
name
range of use
MATRIX
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