Table of contents
1 General instructions .........................................................................3
1.1 How to use this manual................................................................................................................3
1.2 Indication of important instructions and information .....................................................3
1.3 Signs and symbols ..........................................................................................................................3
1.4 Training courses and seminars...................................................................................................3
1.5 Delivery conditions.........................................................................................................................3
1.6 Inspection, transport and storage ............................................................................................4
1.7 Warranty and liability.....................................................................................................................4
1.8 Disposal of Bender devices..........................................................................................................4
1.9 Safety ...................................................................................................................................................5
1.10 Intended use.....................................................................................................................................5
2 Function...............................................................................................6
2.1 Device features ................................................................................................................................6
2.2 Functional description ..................................................................................................................6
2.3 Standard display..............................................................................................................................7
2.4 Connection monitoring ................................................................................................................7
2.5 Manual self test................................................................................................................................7
2.6 Malfunction .......................................................................................................................................7
2.7 Time delays t and ton .....................................................................................................................8
2.8 External, combined test or reset button T/R.........................................................................8
2.9 Device parameter settings...........................................................................................................8
3 Dimensions and mounting ..............................................................9
3.1 Dimensions........................................................................................................................................9
3.2 Mounting............................................................................................................................................9
4 Connection ....................................................................................... 10
5 Operation and settings.................................................................. 11
5.1 Function of the operating elements..................................................................................... 11
5.2 Display elements ......................................................................................................................... 11
5.3 Meaning of the LEDs................................................................................................................... 11
5.4 Standard display........................................................................................................................... 12
5.5 Menu structure.............................................................................................................................. 12
5.6 Setting ranges and factory settings ...................................................................................... 12
5.7 Parameter input............................................................................................................................ 13
6 Measuring current transformers.................................................. 15
6.1 Wiring diagram ............................................................................................................................. 15
6.2 Dimension diagrams................................................................................................................... 15
6.3 Fastening......................................................................................................................................... 16
6.4 Mounting instructions................................................................................................................ 16
6.5 Shielded measuring current transformer variants........................................................... 16
7 Technical data.................................................................................. 17
7.1 Ordering information ................................................................................................................. 18
7.2 Error codes...................................................................................................................................... 19
7.3 Document revision history ....................................................................................................... 19
2 MRCDB423_D00396_01_M_XXEN/06.2021
