rotork YT-2600 Series, Руководство по эксплуатации продукта

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Smart Positioner
YT-2600 series Product manual
Ver. 1.30
6
➢ In case of Fail Freeze product, it keeps the position of current valve in case of input current signal
and pneumatic failure. However, please do not leave it in that state for a long time and take
immediate action to restore the system. There is no fault in the positioner, but it is often reported
that the valve is out of position due to an unexpected leak in the pipe or actuator.
➢ For detailed warranty information, please contact the corresponding local Rotork YTC Limited
office or main office in South Korea.
1.3
Explosion Proof Warning & Specific Conditions of Use
Please ensure the unit is being used and installed in explosion proof certified environment.
➢
The positioners are Explosion proof construction for internal pressure.
For detail information, refer to “2.6 Certifications”
➢ Explosion proof type of cables and gaskets should be used, when explosion gases are present at
the installation site.
➢
Keep cover tight while circuits are alive.
➢ Power should be turned off completely when opening product’s cover. When opening the cover,
ensure that there is no power remaining in any electrical parts nearby.
➢ The positioners have 2 ports for power connection. Explosion proof type wires and packing should
be used. Blind plug is required when any port is not being used.
➢
Ring terminal with surface area of more than 1.25 mm
2
with M4 spring washer should be used to
connect the power.
➢ 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 electro-static 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. If cleaning the surface of the product is needed, must use wet clothes.
➢
Seal required within 50 mm of enclosure.
➢
Consult the manufacturer for dimensional information on the flameproof joint for repair.
➢
To maintain IP66 rating, when installing threaded conduit, use type PTFE tape according to
instructions.
➢
Special conditions for safe use :
The ambient temperature range is from -30 °C to +70 °C for temperature class T6(T85 °C ) or
-30 °C to +80 °C for temperature class T5(T100 °C).
Hazardous area with carbon disulfide shall be excluded.