Appendix 2. ATEX Ex “ec”/ATEX Type “n” / UKEX Ex “ec” / UKEX Type “n”
App.2-18
TI 33Q01J30-01E
Yokogawa Electric Corporation
Model
CENTUM VP N-IO field enclosure
Title
Instructions
No.
NKE0055-A011
Page
2
Revision
1
Table A011.1 (Continued)
Item
Descriptions
Specific
condition of
use
A2ZN60D shall be installed in A2CB60.
Since Ta is not marked on the equipment, the instructions shall be referred to for
the ambient temperature range.
Ambient temperature: −40 to +55 °C (outside the enclosure)
The equipment shall be installed so that pollution degree 2 in accordance with
EN 60664-1 is maintained inside the enclosure.
Installation
and erection
The equipment shall be installed and used within their ratings.
All equipment and wiring in hazardous areas shall be installed in accordance with
EN 60079-14 and related local electrical codes and the installation shall also
comply with the appropriate requirements for non-hazardous areas.
Instructions provided in GS (General specifications), TI (Technical Information of
Installation Guidance) and/or IM (User’s Manuals) shall be observed.
The installation shall be carried out only by qualified personnel whose training
has included instruction on the type of protection and installation practices,
relevant rules and regulations and general principles of area classification.
Screws of terminals for field wiring connections shall be tightened with specified
torque values.
On completion of the installation and prior to first use, initial inspection of the
equipment and installation shall be carried out in accordance with EN 60079-17.
Abide by the following guidance so as to ensure the safety and performance.
Make sure that all the empty slots in the enclosure should be properly covered
with attached caps.
Thoroughly read and understand the information in the User's Manuals before
using the Roxtec’s sealing module and cable glands.
Do not remove the plate for cable gland and plate for sealing module from the
enclosure.
Do not submerge the enclosure in water.
You can purchase hole seals with their part number (B1036HZ, B1037HZ) and
attach them to the product, you can also purchase a product with hole seals
(/SEAL). In both cases, our assessment of product conformity with ATEX
Directive is for A2ZN70D as a whole including the hole seals. The hole seals
come with ATEX certificate provided by the manufacturer when you purchase
them with their part number.
Maintenance
and repair
Inspections and maintenance of the equipment and installations shall be carried
out only by qualified personnel and in accordance with EN 60079-17.
Repair, overhaul, reclamation of the equipment shall be carried out only by
qualified personnel and in accordance with EN IEC 60079-19.
Repairs of the equipment shall be carried out only by trained, experienced,
skilled, knowledgeable and/or supervised personnel, or by the service engineers
authorized by YOKOGAWA. Otherwise, the type of protection may be invalidated.
Modifications shall not be made to the equipment which is operated in hazardous
areas.
Warnings
DO NOT OPEN THE ENCLOSURE WHEN AN EXPLOSIVE ATMOSPHERE IS
PRESENT.
Dec. 3, 2021-00
