KROHNE ALTOFLUX IFM 4080 K EEx EN - Manual (Page 2)

1
WARNING !
No changes may be made to the devices. Unauthorized changes
might affect the explosion safety of the devices.
These additional instructions are an extension to the Installation and Operating
Instructions and only applies for the EEx version of the IFM 4080 K or IFM 4080 K / i -
EEx magnetic-inductive compact flowmeter. All technical information described in the
Installation and Operating Instructions are applicable, when not specifically excluded
or replaced by the instructions in these additional instructions.
CONTENTS
1 SYSTEM COMPONENTS ............................................................................................................... 2
1.1 General information................................................................................................................... 2
1.2 Primary head............................................................................................................................... 3
1.3 IFC 090/…-EEx signal converter............................................................................................. 3
1.3.1 Electronics compartment........................................................................................................3
1.3.2 Terminal compartment...........................................................................................................3
1.4 Electronics unit........................................................................................................................... 4
1.4.1 Regular IFC090-EEx electronics unit .....................................................................................4
1.4.2 IFC 090i-EEx unit with MODIS modules ................................................................................4
2 ELECTRICAL CONNECTION ........................................................................................................ 5
2.1 Equipotential bonding system.................................................................................................. 5
2.2 Regular IFC 090-EEx electronics unit.................................................................................... 5
2.3 MODIS version IFC 090i-EEx electronics unit...................................................................... 6
2.3.1 Connection diagrams MODIS ................................................................................................8
3 OPERATION OF THE SIGNAL CONVERTER......................................................................... 14
4 SERVICE .......................................................................................................................................... 14
4.1 Replacement of electronics unit or power fuse(s).............................................................. 15
4.1.1 Replacement of electronics unit ............................................................................................16
4.1.2 Replacement of power fuse(s)...............................................................................................17
4.1.3 Changing power supply voltage............................................................................................20
5 CONNECTING CABLES ............................................................................................................... 21
6 MAINTENANCE .............................................................................................................................. 21
7 CONNECTION DIAGRAM............................................................................................................. 22
8 ORDERING INFORMATION ......................................................................................................... 23
8.1 Regular IFC 090-EEx electronics unit.................................................................................. 23
8.2 MODIS version IFC 090i-EEx electronics unit.................................................................... 23
9 DATA PLATES................................................................................................................................ 24
10 DECLARATION OF CONFORMITY............................................................................................ 25
11 EC-TYPE EXAMINATION CERTIFICATE ................................................................................. 26
Be sure to follow these instructions !
IMPORTANT !
•
The prescriptions and regulations as well as the electrical data described in the
EC-type examination certificate must be obeyed.
•
Beside the instructions for electrical installations in non-hazardous locations according
to the applicable national standard (equivalent of IEC 364, e.g. VDE 0100), especially
the regulations in EN 60079-14 "Electrical installations in hazardous locations" or
equivalent national standard (e.g. DIN VDE 0165) must be followed.
•
Installation, establishment, utilization and maintenance are only allowed to be
executed by personnel with an education in explosion safety !