Scope :
USER MANUAL
TNBCD Ex d Component Certified Enclosure
Date:
01.09.2022
Ver.:
3
QA Code:
5
Checked by:
E.T.
Approved by:
S.Gr.
Page:
5
of 8
Document no. :
13406
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Offenders are liable to payment of damages. All rights are reserved in the event of the registration of a patent .
Putting into service
•
Verify that the information on the label of the product is in accordance with the
permissible conditions for the Ex area of the site of use (Group II: Surface Industries -
Category 2: high level of protection for ATEX G = for Gas / D = for Dust, IECEx EPL -
G = for Gas / D = for Dusts - IPxx: IP rating (waterproofness for solids and liquids)
•
Check if there is a specific position of mounting
•
Do not open the lid before the enclosure is securely fastened. Also check if the
enclosure has been equipped with hinges
•
The wiring of the cable conductors must be made with a particular care
•
Not to exceed the authorized maximal temperature appropriate cables must be
selected and take particular care installing them
•
Follow the instructions contained in the specifications
Before starting
•
Make sure the unit has been correctly settled and not damaged
•
The device may include any foreign body and no part is damaged
•
The cable gland must be tightened (see description of the gland torque)
Maintenance
The maintenance and repairs work on devices must be made only by authorized and
trained persons for that purpose.
Before any work the devices must be switched off. In addition:
•
Prevent and avoid any formation of layers of dusts: make a periodic cleaning with a
wet cloth
•
Do not take apart the command and control units (push buttons, pilot light, etc.)
It is advisable that the following checks must be made at least once a year:
•
The external equipment and surfaces must not be damaged
•
The cable entries and blanking plugs must be securely fastened
•
Prior to closing, check the cleanliness of the flame path (machined part of the cover in
contact the machined part of the box). Grease these 2 parts with a grease resistant to
oxidation (acid free white vaseline)
•
Screw the cover on the box using the original stainless steel bolts DIN 912 / ISO 4762
M12x25 A4-80. Ensure that the bolts are clean and are greased (grease like Gleitmo
165). Ensure that all the bolts are fitted. Torque the bolts to 65 Nm, max 75 Nm. After
torqueing the bolts, check with a shim of 15/100 mm all around the flame path that the
shim cannot penetrate the flame path. Its non-penetration on full perimeter is the
insurance of the conformity of the product with the standards