Device Profiles - Bender ISOMETER iso1685DP Manual

12. Device profiles

Nominal system
voltage
AC 0...1000 V/
Power circuits
DC 0...1500 V
AC 0...1000 V/
High capacitance
DC 0...1500 V
AC 0...1000 V/
Inverter > 10 Hz
DC 0...1500 V
AC 0...1000 V/
Inverter < 10 Hz
DC 0...1500 V
AC 0...1000 V/
Fast 2000 μF
DC 0...1500 V
The response value range changes depending on the selected profile. Re-
fer to "Response values for insulation monitoring" auf Seite
46
System
Mains frequency leakage
capacitance
DC, 15...460 Hz 0...150 μF
DC, 15...460 Hz 0...500 μF
DC, 10...460 Hz 0...150 μF
DC, 1...460 Hz 0...150 μF
DC, 15...460 Hz 0...2000 μF
54.
Measuring
Description
voltage
Main circuits without dynamic frequency changes.
The universal profile is suitable for all systems primarily with constant mains frequencies and
±50 V
extraneous DC voltages. When using inverters and dynamic frequency control, select
Inverter > 10 Hz or Inverter < 10 Hz.
For systems with high leakage capacitances, e.g. ship applications, the impact of leakage
±50 V
capacitances on the measuring result can be significantly reduced by selecting this profile.
This profile is used for systems with dynamic frequency control by inverters in the range 10
±50 V to 460 Hz in order to optimise the measurement with respect to the measuring time and
quality.
For systems involving extremely low-frequency control in the range of up to 1...460 Hz and
±50 V very low and continuously changing extraneous DC voltages due to dynamic load condi-
tions in an IT system, continuous insulation monitoring can be optimised using this profile.
For systems with very high leakage capacitances, e.g. in large-scale photovoltaic systems,
±50 V
this profile ensures correct measurement.
iso1685DP_D00272_02_M_XXEN/07.2017