Table of contents
3
isoRW425_D00052_03_M_XXEN / 02.2017
1. Important information .................................................................................... 7
1.1 How to use this manual ................................................................................. 7
1.2 Technical support: Service and support .................................................. 8
1.2.1 First level support ............................................................................................. 8
1.2.2 Repair service ..................................................................................................... 8
1.2.3 Field service ........................................................................................................ 8
1.3 Training courses ................................................................................................ 9
1.4 Delivery conditions .......................................................................................... 9
1.5 Inspection, transport and storage .............................................................. 9
1.6 Warranty and liability ................................................................................... 10
1.7 Disposal ............................................................................................................ 10
2. Safety instructions ......................................................................................... 12
2.1 General safety instructions ........................................................................ 12
2.2 Work activities on electrical installations ............................................. 12
2.3 Intended use ................................................................................................... 13
3. Function ........................................................................................................... 14
3.1 Device features .............................................................................................. 14
3.2 Functional description ................................................................................ 15
3.2.1 Monitoring of the insulation resistance (R mode) ............................. 16
3.2.2 Monitoring of the insulation impedance (Z mode) .......................... 16
3.2.3 Undervoltage/overvoltage monitoring ................................................ 17
3.2.4 Self test/error codes ..................................................................................... 17
3.2.5 Malfunction ..................................................................................................... 20
3.2.6 Assignment of the alarm relays K1/K2 ................................................... 20
3.2.7 Measuring and response times ................................................................ 20
3.2.8 Password protection (on, OFF) ................................................................. 22
3.2.9 Factory setting FAC ...................................................................................... 22
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