
CONTENTS
2 www.krohne.com 06/2012 - 4000861601 - AD ATEX OPTIFLEX 2200 R01 en
OPTIFLEX 2200
1 General safety information 4
1.1 Scope of the document..................................................................................................... 4
1.2 Device description ............................................................................................................ 4
1.3 Standards and approvals.................................................................................................. 4
1.4 Device categories ............................................................................................................. 5
1.4.1 Ex ia-approved devices ........................................................................................................... 5
1.4.2 Ex d ia / Ex ia tb-approved devices ......................................................................................... 5
1.4.3 Definitions of device categories.............................................................................................. 5
1.4.4 Definitions of equipment protection levels ............................................................................ 5
1.5 ATEX nameplates.............................................................................................................. 6
2 Installation 9
2.1 Precautions....................................................................................................................... 9
2.1.1 General notes.......................................................................................................................... 9
2.1.2 Electrostatic discharge........................................................................................................... 9
2.2 Operating conditions ...................................................................................................... 10
2.2.1 Ambient and flange temperature ......................................................................................... 10
2.2.2 Maximum surface temperature of the housing for dust applications ................................. 13
2.2.3 Process pressure.................................................................................................................. 13
3 Electrical connections 14
3.1 General notes ................................................................................................................. 14
3.2 Terminal compartment .................................................................................................. 14
3.2.1 How to open the terminal compartment .............................................................................. 14
3.2.2 How to close the terminal compartment ............................................................................. 15
3.3 Terminal tightening capacity.......................................................................................... 16
3.4 Equipotential bonding system........................................................................................ 16
3.5 Ex ia equipment .............................................................................................................. 17
3.5.1 How to connect the electrical cables ................................................................................... 17
3.5.2 Maximum intrinsically-safe values for the electrical circuit............................................... 17
3.5.3 Supply voltage ....................................................................................................................... 17
3.5.4 Electrical schematic ............................................................................................................. 18
3.6 Ex d ia / Ex ia tb equipment ............................................................................................ 18
3.6.1 General notes........................................................................................................................ 18
3.6.2 How to connect the electrical cables ................................................................................... 19
3.6.3 Supply voltage ....................................................................................................................... 19
3.6.4 Electrical schematic ............................................................................................................. 20
4 Start-up 21