HYDAC ELECTRONIC HFS 2500, Руководство по эксплуатации, Страница: 22 / 40

Flow switch HFS 2500 with ATEX approval Page 2
Status 2020/05/19 HYDAC ELECTRONIC GMBH Mat. No.: 669884
Content
1 General .................................................................................................................................... 3
2 Function ................................................................................................................................... 3
3 Safety information..................................................................................................................... 3
3.1 General hints ...................................................................................................................... 3
3.2 Proper / Designated use..................................................................................................... 4
3.3 Qualified personnel ............................................................................................................ 4
3.4 Warning notices ................................................................................................................. 4
4 Installation ................................................................................................................................ 5
4.1 Process connection ............................................................................................................ 5
4.2 Mechanical installation ....................................................................................................... 5
4.3 Ambient conditions ............................................................................................................. 5
4.4 Electrical installation ........................................................................................................... 6
4.4.1 Operating conditions and technical safety data of the Ex-protected contacts model
SEM-A (SPDT/Change over) and SEM-E (SPST/Normally Open) according to
PTB 19 ATEX 2008 X .................................................................................................. 6
4.4.2 General notes for the electrical connection .................................................................. 6
4.4.3 Specific conditions of use ............................................................................................ 7
4.4.4 Electrical connection .................................................................................................... 8
4.4.5 Function test ................................................................................................................ 8
5 Switch point adjustment ............................................................................................................ 9
6 Maintenance ............................................................................................................................. 9
7 Technical Details .................................................................................................................... 10
8 Model code to identify the delivered part ................................................................................ 11
9 Dimensions............................................................................................................................. 12
9.1 Devices without mechanical indicator ............................................................................... 12
9.2 Devices with mechanical indicator .................................................................................... 13
10 Fault finding hints ................................................................................................................ 14
10.1 The switch contact does not react .................................................................................... 14
10.1.1 The switch contact is permanent in break position ..................................................... 14
10.1.2 The switching contact is permanent in made position ................................................ 14
10.2 Switch point does not match with actual flow .................................................................... 14
11 Certificate ............................................................................................................................ 15
12 Declaration of Conformity .................................................................................................... 18