KROHNE OPTISONIC 3400 Ex EN - Manual (Page 2)

CONTENTS
2 www.krohne.com 10/2013 - 7312472200 - AD EX OPTISONIC 3400 -en- R02
OPTISONIC 3400
1 Introduction 4
1.1 Safety instructions from the manufacturer ..................................................................... 4
1.1.1 Copyright and data protection ................................................................................................ 4
1.1.2 Disclaimer ............................................................................................................................... 4
1.1.3 Product liability and warranty ................................................................................................ 5
1.1.4 Information concerning the documentation........................................................................... 5
1.1.5 Warnings and symbols used................................................................................................... 6
1.1.6 Manufacturer .......................................................................................................................... 7
1.2 Safety instructions for the operator................................................................................. 7
1.3 Approval............................................................................................................................ 7
1.4 OPTISONIC 3400 C(/i)-Ex.................................................................................................. 8
1.5 OPTISONIC 3000 F/...-Ex .................................................................................................. 8
1.6 UFC 400 F(/i)-Ex ............................................................................................................... 9
1.7 Marking labels (examples) ............................................................................................. 10
1.7.1 I/O sticker............................................................................................................................. 12
1.7.2 Nameplate for the measuring sensor (field version) ........................................................... 12
2 Temperature limits 14
2.1 General ........................................................................................................................... 14
2.2 UFC 400 F(/i)-Ex ............................................................................................................. 14
2.3 OPTISONIC 3400 C(/i)-Ex................................................................................................ 14
2.4 OPTISONIC 3000 F/...-Ex ................................................................................................ 15
3 Connection of separate systems 16
3.1 General ........................................................................................................................... 16
3.2 Cable marking ................................................................................................................ 16
3.3 Cable parameters........................................................................................................... 16
3.4 Equipotential bonding..................................................................................................... 17
3.4.1 Signal converter.................................................................................................................... 17
3.5 Signal cable connections (filed versions)....................................................................... 17
4 Electrical connections 19
4.1 General ........................................................................................................................... 19
4.2 Cable glands ................................................................................................................... 21
4.3 Field Wiring..................................................................................................................... 21
4.4 Non-"Ex i" I/O connections............................................................................................. 22
4.5 "Ex i" I/O connections ..................................................................................................... 24
5 Maintenance and service 26
5.1 Maintenance ................................................................................................................... 26
5.2 Before and after opening................................................................................................ 26
5.3 Replacement of mains fuse............................................................................................ 27
5.4 Exchange of electronics unit .......................................................................................... 28
5.4.1 Field version.......................................................................................................................... 29