Masoneilan Model 4411 Electropneumatic Transducer Instruction Manual | 8
Copyright 2020 Baker Hughes Company. All rights reserved.
Instructions Specific to
Hazardous Area Installations
(Reference European ATEX Directive 2014/34/EU, Annex II,
1.0.6)
The following instructions apply to equipment covered by
certificate numbers SIRA 01ATEX2224X & SIRA 01ATEX1223
1. The Model 4411 may be installed as intrinsically safe or
flameproof:
•
Zone 0 or 20 installations require the equipment to be
installed as intrinsically safe via suitable associated
apparatus�
•
Zone 1 or 21 installations require the equipment to be
installed as intrinsically safe or flameproof; if installed
as flameproof, associated apparatus is not required,
but there are more onerous requirements for cable
entry – refer to EN60079-0.
•
Zone 2 or 22 installations may be intrinsically safe or
flameproof.
• It is recommended that the installer indicates on the
equipment which certification code applies.
2. The equipment should not be used outside the stated
ambient temperature range.
3. The equipment has not been assessed as a safety-related
device (as referred to by Directive 2014/34/EU Annex II,
clause 1.5).
4. Installation and maintenance of this equipment shall be
carried out by suitably-trained personnel in accordance
with the applicable codes of practice (EN 60079-14 and EN
60079-17 within Europe).
5. Repair of this equipment shall be carried out by the
manufacturer or in accordance with the applicable code of
practice (IEC 60079-19).
6. When installing the equipment as flameproof cable gland
(M20 parallel thread) or a conduit (1/2" NPT tapered thread),
the installer should verify the thread form and ensure that
the appropriate matching thread is used� The pneumatic
connections are not flameproof entries.
7. The certification of this equipment relies on the following
materials used in its construction:
Enclosure: aluminium alloy and zinc alloy
O-ring: nitrile rubber
Encapsulant: polyurethane
If the equipment is likely to come into contact with aggressive
substances, then it is the responsibility of the user to take suitable
precautions that prevent it from being adversely affected, thus
ensuring that the type of protection is not compromised.
•
Aggressive substances: e.g. acidic liquids or gases that
may attack metals, or solvents that may affect polymeric
materials�
•
Suitable precautions: e.g. regular checks as part of routine
inspections or establishing from the material’s data sheet
that it is resistant to specific chemicals.
•
Not to be used with pure oxygen or oxygen enriched media
as the process fluid.
Consult the supplier for approval certificates.
8. Only approved cable glands are to be used which must
maintain an Ingress Protection of IP66.
9. Unused entry port hole must be blanked off using suitably
approved blanking plug conforming to the hazardous area
certification rating applicable.
Instructions – Special
Condition for Safe Use
For Certificate Number Sira 01ATEX1223 – (Ex d) None.
For Certificate Number Sira 01ATEX2224X – (Ex ia)
1. For operation reasons, it may be necessary to connect the
screen of the cable to the enclosure of the equipment in
the hazardous area. If this is the case, then the equipment
shall be installed in accordance with EN 60078-14:2014
(specifically clause 16.2.2.3 and 16.2.4), typically using a
galvanically-isolated interface with no other connection to
Earth apart from via the enclosure of the equipment.
2. The enclosure is made from light metal which could cause
ignition due to impact and friction. This shall be taken into
consideration when the apparatus is installed in location that
specifically requires equipment protection level Ga.
3. Under certain extreme circumstances, the non-metallic
parts incorporated in the enclosure of this equipment may
generate an ignition-capable level of electrostatic charge.
Therefore, when it is used for applications that specially
require equipment protection level Ga, the equipment shall
not be installed in a location where the external conditions
are conductive to the build-up of electrostatic charge on
such surfaces. Additionally, the equipment shall only be
cleaned with a damp cloth.
4. The option for the air vented from the enclosure to be re-
circulated and introduced back into the process stream shall
not be used when the equipment is installed in locations that
specifically require equipment protection level Ga for group
II category 1G or 1D for group III category 1D equipment.
