Contents
D−LX 200, D−LX 720 3
Contents
1 General 9
1.1 Information on Operating instructions .......................................................................................... 9
1.2 Explanation of Symbols .............................................................................................................. 10
1.3 Limitation of liability .................................................................................................................... 12
1.4 Information regarding warranty .................................................................................................. 12
1.5 Spare parts ................................................................................................................................. 12
1.6 Customer service ....................................................................................................................... 13
1.7 Copyright .................................................................................................................................... 13
1.8 Trademarks ................................................................................................................................ 13
2 Safety instructions 17
2.1 General safety instructions ......................................................................................................... 17
2.2 Hazards due to electrical equipment .......................................................................................... 18
2.3 Hazard due to hot, aggressive or explosive gases .................................................................... 18
2.4 Hazard to the device due to purge air failure ............................................................................. 19
2.5 Designated use .......................................................................................................................... 19
2.6 Avoidance of consequential damage in the event of a system fault .......................................... 19
2.7 Qualified personnel .................................................................................................................... 20
3 Explosion protection 23
3.1 Basics ......................................................................................................................................... 23
3.2 Classification of the equipment groups into categories ............................................................. 24
3.3 Equipment with pressure proof encapsulation „Ex d“ ................................................................ 25
3.4 Ignition protection category "Ex n_" (Gas) ................................................................................ 26
3.5 Protection through housing “Ex t“ (dust) ................................................................................... 27
3.6 ATEX Markings .......................................................................................................................... 27
3.7 FM Markings............................................................................................................................... 29
3.8 Safety with Ex-equipment .......................................................................................................... 31
3.9 Meaning of Ex-specifications on the Ex-type labels................................................................... 31
4 Functional safety 35
4.1 Relevant Standard ..................................................................................................................... 35
4.2 Functions of the flame monitor ................................................................................................... 35
4.3 Generally valid parameters of the flame monitor ....................................................................... 36
4.4 Low and high demand mode of operation .................................................................................. 36
4.5 Low demand mode ..................................................................................................................... 36
4.6 High demand mode .................................................................................................................... 39
5 Product description 43
5.1 Instructions for delivery .............................................................................................................. 43
5.2 Items delivered / Version variants .............................................................................................. 43
5.3 Accessories ................................................................................................................................ 45
5.4 Instructions about the product .................................................................................................... 48
5.5 Designated Use, Applications .................................................................................................... 48
5.6 Selection criteria for Compact Flame Monitor D−LX 200, D−LX 720 ........................................ 49
5.7 Conformity .................................................................................................................................. 50
5.8 Identification of the product ........................................................................................................ 50
5.9 Type code ................................................................................................................................... 52
5.10 Information regarding warranty .................................................................................................. 54
6 Layout and function 57
6.1 Functional description ................................................................................................................ 57
6.2 Device description ...................................................................................................................... 60
7 Installation, commissioning 69
7.1 Safety ......................................................................................................................................... 69