KROHNE ALTOFLUX IFM4042K 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 4042 K electromagnetic
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............................................................................................................................... 2
1.3 IFC 040-EEx signal converter.................................................................................................. 3
1.3.1 Electronics compartment ....................................................................................................3
1.3.2 Terminal compartment........................................................................................................3
1.3.3 Cable or conduit entries ......................................................................................................4
2. ELECTRICAL CONNECTION ........................................................................................................ 4
2.1 Detailed description of the output circuits.............................................................................. 5
2.2 Safety-technical data ................................................................................................................. 6
2.3 Connection examples................................................................................................................ 6
3. OPERATION OF THE SIGNAL CONVERTER........................................................................... 8
4. REPLACEMENT OF ELECTRONICS UNIT ................................................................................ 9
5. EQUIPOTENTIAL BONDING SYSTEM ..................................................................................... 10
6. TECHNICAL DATA......................................................................................................................... 10
7. MAINTENANCE .............................................................................................................................. 10
8. CONNECTION DIAGRAM............................................................................................................. 11
9. ORDERING INFORMAT ION ......................................................................................................... 12
10. DATA PLATES ............................................................................................................................. 12
11. EC-TYPE EXAMINAT ION CERTIFICATE............................................................................... 15
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 !