KROHNE H250 M40 ATEX II3G Ex nA EN - Manual (Page 2)

CONTENTS
2 www.krohne.com 01/2012 - 4001485201- MA H250/M40-Ex-II3G-AD R01 en
H250 M40
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EC conformity ................................................................................................................... 3
1.3 Approval according to the IECEx scheme ........................................................................ 3
1.4 Safety instructions............................................................................................................ 3
2 Device description 4
2.1 Device description ............................................................................................................ 4
2.2 Description code............................................................................................................... 4
2.3 Marking............................................................................................................................. 5
2.4 Flammable products ........................................................................................................ 6
2.5 Equipment category ......................................................................................................... 6
2.6 Protection types................................................................................................................ 7
2.7 Ambient temperature / temperature classes.................................................................. 8
2.8 Electrical data................................................................................................................. 14
3 Installation 15
3.1 Installation...................................................................................................................... 15
4 Electrical connections 16
4.1 General notes ................................................................................................................. 16
4.2 Power supply .................................................................................................................. 16
4.3 Inputs/outputs ................................................................................................................ 16
4.4 Grounding and equipotential bonding............................................................................ 16
5 Operation 18
5.1 Start-up........................................................................................................................... 18
5.2 Operation ........................................................................................................................ 18
5.3 Electrostatic charge ....................................................................................................... 18
6 Service 19
6.1 Maintenance ................................................................................................................... 19
6.2 Dismantling .................................................................................................................... 19
AD_H250_M40_II3G_R01_en_4001485201_PRT.book Page 2 Tuesday, January 24, 2012 8:46 AM