Publicité
4.3 INSTRUMENTS
• All measuring instruments ( only for COMPACT-EX[GD] type 593.311-... and 593.412-... ) have ATEX / IECEx
separate certificates. Installation and maintenance shall be done as prescribed by manufacturer documents.
• Only SCAME approved instruments can be mounted.
If the COMPACT-EX[GD] are NOT fitted with wiring by SCAME, each COMPACT-EX[GD] Enclosure shall be
subject to a routine dielectric streght test of 1000 V + 2U rms or 1500 V rms, whichever is the greater applied
between the terminal block and the enclosure for a period of 60 s as required by clause 6.1 of IEC / EN 60079-7.
Alternatively, a test shall be carried out at 1.2 times the test voltage, but maintained for at least 100 ms.
5. SERVICING AND MAINTENANCE AND REPAIRING
Inspection and maintenance of this equipment shall be carried out by suitably trained personnel in
accordance with the applicable code of practice (e.g. IEC / EN 60079-17). During servicing, it is particularly
important to check those components upon which the type of protection depends.
5.1 SPECIFIC CONDITIONS OF USE
The equipment shall be installed in compliance with manufacturer's safety instruction document.
User has to periodically clean the enclosure in order to avoid the creation of a dust layer higher than 5 mm.
Flameproof joints (of "Ex db" components) are not intended to be repaired.
When stainless steel marking plate is used, the installation shall be made that nameplate are situated such that
discharges to approaching earth are not expected.
During installation, the user will have to take into consideration that the heads ZB.. and control units ZBW..
(manufactured by Ex tech solution) shall be protected from impact.
5.2 ROUTINE MAINTENANCE
Routine maintenance is required in order to guarantee the efficiency of the enclosure and to maintain the
required level of protection.
1) Check that the lid seal is in place and not damaged
2) Check that all the lid fixing screws are in place and secured
3) Check that the mounting screws/bolts are tight and free of corrosion
4) Check the security of all cable glands
5) Check the enclosure for damage
6) In zones with presence of combustible dusts, it is necessary to periodically clean the upper surface of the box,
limiting the depth of the layer to less than 5 mm.
Storage conditions
Storage Temperature: from -xx°C
Relative Humidity:
≤95%RH
(1) For the minimum storage temperature, see the minimum ambient temperature indicated on the label.
The estimated product lifetime is 25 years if maintenance and storage condition are respected and all
prescriptions specified applied in this instructions.
5.3 RESISTANCE TO CHEMICAL AGENT
Consideration should be given to the environment in which these enclosures are to be used to determine the
suitability of these materials to withstand any corrosive agents that may be present.
5.4 DISPOSAL
Disposal and recycling of the product shall be done according to national regulations for waste disposal and
recycling.
to +70°C.
(1)
-21-
each time the enclosure is opened
each time the enclosure is closed
annually
annually
annually
Publicité
