KROHNE H250 M9S ATEX II3D Ex t-II3G Ex nA EN - Manual (Page 2)

CONTENTS
2 www.krohne.com 10/2012 - 4000646002 MA H250/M9-Ex-II3GD-AD-R06-en
H250 M9
1 Safety instructions 3
1.1 General notes ................................................................................................................... 3
1.2 EC conformity ................................................................................................................... 3
1.3 Security information......................................................................................................... 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 Types of protection ........................................................................................................... 7
2.6.1 Type of protection for gas hazard areas................................................................................. 7
2.6.2 Type of protection for dust hazard areas ............................................................................... 7
2.7 Ambient temperature / temperature classes.................................................................. 8
2.8 Surface temperature equipment category II 3 D ........................................................... 11
2.9
Electrical data....................................................................................................... 11
3 Installation 12
3.1 Installation...................................................................................................................... 12
4 Electrical connections 13
4.1 General notes ................................................................................................................. 13
4.2 Power supply .................................................................................................................. 14
4.3 Inputs/outputs ................................................................................................................ 14
4.4 Earthing and equipotential bonding............................................................................... 14
5 Operation 15
5.1 Start-up........................................................................................................................... 15
5.2 Operation ........................................................................................................................ 15
5.3 Electrostatic charge ....................................................................................................... 15
6 Service 16
6.1 Maintenance ................................................................................................................... 16
6.2 Dismantling .................................................................................................................... 16
7 Notes 17
AD_H250_M9_II3GD_R06_en_646002_PRT.book Page 2 Wednesday, October 17, 2012 8:03 AM