isoRW425_D00052_05_M_XXEN / 04.2021 3
ISOMETER® isoRW425
Table of Contents
1 General instructions ..........................................................................5
1.1 How to use this manual..............................................................................................5
1.2 Indication of important instructions and information....................................5
1.2.1 Signs and symbols ........................................................................................................5
1.3 Training courses and seminars.................................................................................5
1.4 Delivery conditions.......................................................................................................6
1.5 Inspection, transport and storage ..........................................................................6
1.6 Warranty and liability...................................................................................................6
1.7 Disposal of Bender devices........................................................................................6
1.8 Safety .................................................................................................................................7
1.9 Intended use...................................................................................................................7
2 Function...............................................................................................8
2.1 Device features ..............................................................................................................8
2.2 Functional description ................................................................................................9
2.2.1 Monitoring of the insulation resistance (R mode) .........................................10
2.2.2 Monitoring of the insulation impedance (Z mode)....................................... 10
2.2.3 Undervoltage/overvoltage monitoring .............................................................10
2.2.4 Self test/error codes .................................................................................................11
2.2.5 Malfunction ..................................................................................................................12
2.2.6 Assignment of the alarm relays K1/K2 ............................................................... 13
2.2.7 Measuring and response times.............................................................................13
2.2.8 Password protection (on, OFF).............................................................................. 14
2.2.9 Factory setting FAC ................................................................................................... 14
2.2.10 External, combined test or reset button T/R.................................................... 14
2.2.11 Fault memory ..............................................................................................................15
2.2.12 History memory HiS ..................................................................................................15
2.2.13 Interface/protocols.................................................................................................... 15
3 Installation, connection and commissioning ............................ 16
3.1 Installation ....................................................................................................................16
3.2 Wiring diagram ...........................................................................................................17
3.3 Commissioning ...........................................................................................................18
4 Device operation............................................................................. 19
4.1 Display elements........................................................................................................ 20
4.2 Menu structure............................................................................................................ 21
4.3 Menu „AL“ .....................................................................................................................22
4.3.1 Response value setting............................................................................................ 22
4.4 Menu „out“ ...................................................................................................................22
4.4.1 Configuration of the relay operating mode..................................................... 22
4.4.2 Relay alarm assignment „r1“ and „r2“ and LED assignment ......................23
