BEKA BA317NE, Руководство пользователя

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Appendix 3 ETL & cETL certification for
installations in USA and Canada
A3.0 cETL Mark
For installations in the USA and Canada, the
BA317NE Tachometer has ETL and cETL Ex nA and
Ex tc approval, Control Number 4008610. Copies of
the Authorisation to Mark are available from the BEKA
associates sales office and www.beka.co.uk
A3.1 ETL and cETL certification
The US and Canadian standards used for assessment
and certification of the BA317NE are listed on the
cETL Authorisation to Mark.
The ETL and cETL safety parameters are the same as
the ATEX and IECEx parameters, the systems shown
in sections 3, 4 and 5 of this manual may therefore
also be used for US and Canadian installations
subject to complying with local codes of practice.
ETL and cETL codes
CL I Zone 2 AEx nA ic IIC T5 Gc (US gas, Zone cert)
Zone 22 AEx ic tc IIIC T80ºC Dc (US dust, Zone cert)
Ex nA ic IIC T5 Gc (Canadian gas, Zone cert)
Ex ic tc IIIC T80ºC Dc (Canadian dust, Zone cert)
-40ºC

Ta

60ºC
The Tachometer's front panel push button contacts
are non incendive and have been certified intrinsically
safe Ex ic, without the need for an external Zener
barrier or galvanic isolator, as shown on the ETL
Authorisation to Mark. This allows the Tachometer to
be adjusted and configured live when installed in a
Ex n panel enclosure located in Zone 2.
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