Spirax Sarco EP6 User manual

IM-P703-04 CTLS Issue 3 1
EP6 ATEX Electro-pneumatic Positioner
1. Safety information
2. General product information
3. Installation
4. Commissioning
5. Maintenance
6. Spare parts
7. Fault finding
8. Approvals
© Copyright 2021
EP6
ATEX Electro-pneumatic Positioner
Installation and Maintenance Instructions
IM-P703-04
CTLS Issue 3

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EP6 ATEX Electro-pneumatic Positioner
Safe operation of these products can only be guaranteed if they are properly installed,
commissioned, used and maintained by qualified personnel (see Section 1.13) in compliance with
the operating instructions. General installation and safety instructions for pipeline and plant
construction, as well as the proper use of tools and safety equipment must also be complied with.
WARNING: The maximum process fluid temperature must be suitable for use if the
unit is to be used in any potential explosive atmosphere. For the device maintenance
in a potentially explosive atmosphere, we recommend the usage of tools which do
not produce and / or propagate sparks.
1.1 Explosion Proof Warning
Please ensure the unit is being used and installed in conformity with local, regional, and national
explosion proof regulations.
-Refer to “8. Approvals”
-Explosion proof type of cables and gaskets should be used, when explosive gases
are present at the installation site.
-Power should be turned off completely when opening the product’s cover. When
opening the cover, ensure that there is no power remaining in any electrical parts
nearby.
-Flameproof enclosure type positioner has 2 ports for power connection. Explosion
proof type wires and packing should be used. A blanking plug is required for any
port that is not being used.
-Ring terminal with surface area of more than 1.25 mm2with M4 spring washer should
be used to connect the power.
-For external ground terminal, ring terminal with surface area of more than 5.5 mm2
should be used.
-There is risk of explosion due to static electricity charge. Static electricity charge
may develop when cleaning the product with a dry cloth. It is imperative to avoid
static electricity charge in the hazardous environment. A damp cloth must be used,
when cleaning the surface of the product.
-To meet explosion-proof marking information and ingress protection of IP66, use
certified Ex-cable glands and Ex-plugs.
-If you need additional information about the values of the flameproof joints, contact
Spirax Sarco directly.
-The electric valve positioner must be connected in series with a fuse with a rated
current not higher than 62mA, a breaking capacity above 1500A, and a rated voltage
not less than the working voltage of the product.
-The cable entry must be equipped with a cable entry device, which must be an Ex
cable entry device approved by the explosion-proof inspection agency (For NEPSI
- according to the requirements of GB3836.1-2010 and GB3836.2-2010) and meet
the requirements of the product explosion-proof mark, and the installation of the
cable entry device Use must follow its instructions.
1. Safety information

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EP6 ATEX Electro-pneumatic Positioner
1.2 Wiring
Every effort has been made during the design of the positioner to ensure the safety of the user,
but the following precautions must be followed:
i) Ensure correct installation. Safety may be compromised if the installation of the product is
not carried out as specified in this manual.
ii) Wiring should be carried out in accordance with IEC 60364 or equivalent.
iii) Fuses should not be installed in the protective earth conductor. The integrity of the installation
protective earth system must not be compromised by the disconnection or removal of other
equipment.
1.3 Intended use
Referring to the Installation and Maintenance Instructions, product markings and Technical
Information Sheet, check that the product is suitable for the intended use / application. These
products comply with the requirements of the Directive 2014/34/EU (ATEX) for the use of equipments
in potentially explosive atmospheres.
1.4 Access
Ensure safe access and if necessary a safe working platform (suitably guarded)before attempting
to work on the product. Arrange suitable lifting gear if required.
1.5 Lighting
Ensure adequate lighting, particularly where detailed or intricate work is required.
1.6 Hazardous liquids or gases in the pipeline
Consider what is in the pipeline or what may have been in the pipeline at some previous time.
Consider: flammable materials, substances hazardous to health, extremes of temperature.
1.7 Hazardous environment around the product
Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases, extremes of
temperature, hot surfaces, fire hazard (e.g. during welding), excessive noise, moving machinery.
The positioner is suitable for installation in Zone 1 or Zone 2 ( Gas ). The positioner shall not
be used in zone 0.
1.8 The system
Consider the effect on the complete system of the work proposed. Will any proposed action (e.g.
closing isolation valves, electrical isolation) put any other part of the system or any personnel
at risk?
Dangers might include isolation of vents or protective devices or the rendering ineffective of
controls or alarms. Ensure isolation valves are opened and closed progressively to avoid system
shocks.
1.9 Pressure systems
Ensure that any pressure is isolated and safely vented to atmospheric pressure. Consider double
isolation (double block and bleed) and the locking or labelling of closed valves. Do not assume
that the system has depressurised even when the pressure gauge indicates zero.

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EP6 ATEX Electro-pneumatic Positioner
1.10 Temperature
Allow time for temperature to normalise after isolation to avoid the danger of burns.
1.11 Tools and consumables
Before starting work ensure that you have suitable tools and / or consumables available. Use only
genuine Spirax Sarco replacement parts.
1.12 Protective clothing
Consider whether you and / or others in the vicinity require any protective clothing to protect against
the hazards of, for example, chemicals, high / low temperature, radiation, noise, falling objects,
and dangers to eyes and face.
1.13 Permits to work
All work must be carried out or be supervised by a suitably competent person.Installation and
operating personnel should be trained in the correct use of the product according to the Installation
and Maintenance Instructions.
Where a formal 'permit to work' system is in force it must be complied with. Where there is no such
system, it is recommended that a responsible person should know what work is going on and, where
necessary, arrange to have an assistant whose primary responsibility is safety.
Post 'warning notices' if necessary.
1.14 Handling
Manual handling of large and / or heavy products may present a risk of injury. Lifting, pushing,
pulling, carrying or supporting a load by bodily force can cause injury particularly to the back.
You are advised to assess the risks taking into account the task, the individual, the load and the
working environment and use the appropriate handling method depending on the circumstances
of the work being carried out.
1.15 Residual hazards
In normal use the external surface of the product may be hot. Many products are not self-draining.
Take due care when dismantling or removing the product from an installation (refer to 'Maintenance
instructions').
1.16 Freezing
Provision must be made to protect products which are not self-draining against frost damage in
environments where they may be exposed to temperatures below freezing point.
1.17 Disposal
Unless otherwise stated in the Installation and Maintenance Instructions, this product is recyclable
and no ecological hazard is anticipated with its disposal providing due care is taken.
1.18 Returning products
Customers and stockists are reminded that under EC Health, Safety and Environment Law,
when returning products to Spirax Sarco they must provide information on any hazards and the
precautions to be taken due to contamination residues or mechanical damage which may present a
health, safety or environmental risk. This information must be provided in writing including Health
and Safety data sheets relating to any substances identified as hazardous or potentially hazardous.

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EP6 ATEX Electro-pneumatic Positioner
Product return procedure
Please provide the following information with any equipment being returned:
1. Your name, Company name, address and telephone number, order number and invoice and return
delivery address.
2. Description of equipment being returned.
3. Description of the fault.
4. If the equipment is being returned under warranty, please indicate:
i. Date of purchase
ii. Original order number
iii. Serial number
Please return all items to your local Spirax Sarco branch.
Please ensure all items are suitably packed for transit (preferably in the original cartons).