CONTENTS
2
www.krohne.com 09/2022 - 4000419908 - AD VA Mech Ex Gb-Db R08 en
VA FLOWMETERS
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EU conformity
................................................................................................................... 3
1.3 UK conformity
................................................................................................................... 3
1.4 Safety instructions
............................................................................................................ 4
2 Device description 5
2.1 Device description ............................................................................................................ 5
2.2 Designation code
.............................................................................................................. 5
2.3 Marking
............................................................................................................................. 8
2.4 Flammable products
...................................................................................................... 11
2.5 Equipment category
....................................................................................................... 12
2.6 Types of protection
......................................................................................................... 12
2.7 Ambient temperature / Product temperature
............................................................... 13
2.8 Surface temperature
...................................................................................................... 15
2.9 Ignition hazard assessment / protective measures
...................................................... 16
3 Installation 17
3.1 Mounting......................................................................................................................... 17
3.2 Special conditions
........................................................................................................... 17
3.3 Grounding and equipotential bonding
............................................................................ 18
4 Operation 21
4.1 Start-up........................................................................................................................... 21
4.2 Operation
........................................................................................................................ 21
4.3 Static electricity
.............................................................................................................. 21
4.3.1 Electrostatic charge caused by ambient conditions ............................................................ 21
4.3.2 Charging non-conductive external parts by cleaning
.......................................................... 22
4.3.3 Process dependent charging................................................................................................ 22
5 Service 23
5.1 Dismantling .................................................................................................................... 23
5.2 Maintenance
................................................................................................................... 23
6 Notes 25