SMAR FY301, Инструкция по эксплуатации и техническому обслуживанию

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Installation
1.15
Explosion/Flame Proof
WARNING
The electric connection’s entries must be connected or closed using the appropriate Ex-d metal
cable gland and/or metal blanking plug with certified IP66 rating.
The standard plugs provided by Smar do not have an Ex-d/XP certification. For Explosion proof
applications a certified plug must be used. Consult Smar for certified plugs.
The electrical connection with NPT thread must use waterproofing sealant. A non-hardening
silicone sealant is recommended.
Do not remove the positioner covers when power is ON.
Intrinsically Safe
WARNING
In hazardous zones with intrinsically safe or non-incendive requirements, the circuit entity
parameters and applicable installation procedures must be observed.
To protect the application, the positioner
must be connected to a barrier
. Match the parameters
between barrier and the equipment (Consider the cable parameters). Associated apparatus
ground bus shall be insulated from panels and mounting enclosures. Shield is optional. If used,
be sure to insulate the end not grounded. Cable capacitance and inductance plus Ci and Li must
be smaller than Co and Lo of the associated Apparatus (see appendix “A” for Ci and Li values).
For free access to the Hart bus in the explosive environment, ensure the instruments in the loop
are installed in accordance with intrinsically safe or non-incendive field wiring practices. Use only
Ex Hart communicator approved according to the type of protection Ex-i (IS) or Ex-n (NI).
It is not recommended to remove the positioner cover when the power is ON.