FP302 - Operation, Maintenance and Instructions Manual
1.6
Installation in Hazardous Areas
WARNING
Explosions could result in death or serious injury, besides financial damage. Installation of this converter in
explosive areas
must be carried out in accordance with the local standards and the protection type adopted
.Before continuing the installation make sure the certificate parameters are I n accordance with the
classified area where the equipment will be installed.
The instrument modification or parts replacement supplied by other than authorized representative of Smar
is prohibited and will void the certification.
The converters are marked with options of the protection type. The certification is valid only when the
protection type is indicated by the user. Once a particular type of protection is selected, any other type of
protection can not be used.
The electronic housing and the sensor installed in hazardous areas must have a minimum of 6 fully
engaged threads. Lock the housing using the locking screw (Figure 1.1).
The cover must be tighten with at least 8 turns to avoid the penetration of humidity or corrosive gases. The
cover must be tighten until it touches the housing. Then, tighten more 1/3 turn (120
°
) to guarantee the
sealing. Lock the covers using the locking screw (Figure 1.1).
Consult the Appendix A for further information about certification.
Explosion/Flame Proof
WARNING
In Explosion-Proof installations the cable entries must be connected or closed using metal cable gland and
metal blanking plug, both with at least IP66 and Ex-d certification.
As the converter is non-ignition capable under normal conditions, the statement “Seal not Required” could be
applied for Explosion Proof Version. (CSA Certification).
The standard plugs provided by Smar are certified according to the standards at FM, CSA and CEPEL. If the
plug needs to be replaced, a certified plug must be used.
The electrical connection with NPT thread must use waterproofing sealant. A non-hardening silicone sealant is
recommended.
Do not remove the converter 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 converter 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.
It is not recommended to remove the converter cover when the power is ON.
NOTE
To obtain all the available certifications consult
www.smar.com
.
Содержание FP302
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