Spirax Sarco SP7-20, Инструкция по установке и обслуживанию, Страница: 4 / 56

IM-P706-03 CTLS Issue 1
4
SP7-20 Smart Positioner
1. Safety information
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.
-
For external ground terminal, ring terminal with surface area of more than 5.5 mm
2
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.
-
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.
-
The positioner is designed for use at an ambient temperature range of -40 °C up
to 85 °C at maximum.
-
If the positioner is used at an ambient temperature above 60 °C or below -20 °C,
cable glands and cables approved for a service temperature corresponding to the
maximum ambient temperature increased by 10 K or corresponding to the minimum
ambient temperature shall be used.
-
The dimensions of the flameproof joints are in parts other than the relevant minimum
or maximum values of IEC 60079-1:2014. For information on the dimensions of the
flameproof joints contact the manufacturer.
-
Fasteners with a minimum property class of 10.12, A2-70 or A2-80 must be used
for the closing of the flameproof enclosure.