BEKA BA337E-SS, Руководство пользователя

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Appendix 2 IECEx certification
A2.0 The IECEx Certification Scheme
IECEx is a global certification scheme for explosion
protected products which aims to harmonise
international certification standards. For additional
information about the IECEx certification scheme and
to view the BEKA associate certificates, please visit
www.iecex.com
A2.1 IECEx Certificate of Conformity
The BA337E-SS Rate Totaliser has been issued with
an IECEx Certificate of Conformity number
IECEx ITS 16.0004X which specifies the following
certification code:
Ex ia IIC T5 Ga
Ex ia IIIC T 80ºC Da
-40ºC
≤ Ta ≤ +60ºC
When installed as purely intrinsically safe apparatus
i.e. when not relying upon ingress and impact
resistance of the Rate Totaliser front in an Ex e, Ex p,
Ex n or Ex t panel enclosure the ambient temperature
range is increased to -40ºC
≤ Ta ≤ +70ºC.
The IECEx certificate may be downloaded from
www.beka.co.uk, www.iecex.com or requested from
the BEKA sales office.
A2.2 Installation
The IECEx intrinsic safety parameters are identical to
the ATEX safety parameters described in the main
section of this manual and both refer to the same
standards. Therefore the ATEX installation
requirements specified in sections 4, 5 and Appendix
1 of this manual may be used for IECEx installations,
but the local code of practice should also be
consulted.
A2.3 Special conditions for safe use
The IECEx intrinsic safety certificate number has an
‘X’ suffix indicating that for some applications special
conditions apply for safe use.
•
For use in group III explosive dust
atmospheres the BA337E-SS shall be
mounted such that the rear of the instrument
has at least IP54 protection.
•
For use in group IIIC conductive explosive
dust atmospheres the BA337E-SS shall be
mounted such that the rear terminals have at
least IP6X protection.
This means that when installed in an Ex e, Ex n, Ex p
or Ex t panel enclosure the BA337E-SS remains an
intrinsically safe instrument and must comply with the
installation requirements shown in this manual.
The certificate also states:
The front of the stainless steel enclosure
complies with the requirements for Ex e, Ex n
Ex p & Ex t type of protection.
Therefore when correctly installed in a certified panel
enclosure the BA337E-SS Rate Totaliser will not
invalidate the Ex e, Ex n, Ex p or Ex t panel
enclosure certification.
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