KROHNE OPTIFLUX 2000-4000-5000-6000-7300-IFC 300 Ex EN - Manual (Page 34)

4
ELECTRICAL CONNECTIONS
34
OPTIFLUX
www.krohne.com 07/2010 - 7309482600 - AD EX IFC 300 R06 en
The exact I/O-configuration for circuits A, B, C and D is order-specific and can be determined by
the CG number shown on the converter. Therefore check the data on the back of electronics unit
of the signal converter. The CG number contains 10 characters of which the last three characters
(XYZ) determine the configuration of the I/O circuits:
The wiring of instruments has to be in accordance with the requirements as specified in the
relevant national or international standard for electrical installations in hazardous areas, e.g.
EN 60079-14. Section 9 (wiring systems) of this standard applies to all types of protection.
Section 10 (additional requirements for type of protection “d” - flameproof enclosures), section
11 (additional requirements for type of protection “e” - increased safety) and section 12
(additional requirements for type of protection “i” - intrinsic safety) apply to respectively “Ex d”,
“
Ex e” and “Ex i” performed connection (terminal) compartments.
CGxx CGxx CGxx CGxx **** **** **** X XX X YYYY Z ZZ Z
Pos 1...4 5 6 7 8 9 10
determine I/O circuits