KROHNE CAPAFLUX EEx-ATEX EN - Manual (Page 14)

CAPAFLUX IFM 5080 K/CAP-EEx and CAPAFLUX IFM 5080 K/CAP i-EEx 14
For the connection diagrams of the intrinsically safe signal in-/outputs of the installed MODIS modules in
the IFC 090 / CAP i-EEx electronics unit (see figures on the following pages). It has to be noted that the
intrinsically safe signal in-/outputs may only be connected to the following listed apparatus' (registering
devices like amp-meters, pulse counters, etc.):
EEx-approved intrinsically safe apparatus;
EEx-approved associated apparatus;
Passive apparatus as defined in your national standard for installation of electrical apparatus in
hazardous locations (e.g. EN 60079-14).
Other types of apparatus may only be connected to the intrinsically safe signal in-/outputs through EEx-
approved safety barriers, isolating interface units and the like. These barriers or units are not depicted in
the connection diagrams for reasons of readability. It is assumed that they are an integrated part of the
registering devices or as separate devices connected in series with them. The registering devices may
only be installed in the hazardous location if they also have a type of protection for explosion safety
according to the European Standards of the EN 500xx series, or if they are constructed as prescribed in
your standard national code of practice.
When the intrinsically safe signal in-/outputs are connected to other intrinsically safe or associated
apparatus, the maximum safety values (i.e. entity parameters) of all intrinsically safe circuits have to be
considered.
Important !
The 100…230 Vac power supply versions of the IFC 090 / CAP i-EEx signal
converter electronics unit with MODIS modules can only be equipped with passive
outputs. Therefore the connection diagrams with the numbers 2, 4, 5, 7, 9, 11 and 12
are applicable for the 100…230 Vac power supply versions.