ISOMETER® Iso685-D

The ISOMETER® iso685-D is an insulation monitoring device for IT systems in accordance with IEC 61557-8. It is universally applicable in AC, 3(N)AC, AC/DC and DC systems.

AC systems may include extensive DC-supplied loads (such as rectifiers, inverters, variablespeed drives).

Insulation monitoring for unearthed systems AC, 3(N)AC 0…690 V, DC 0…1000 V
Nominal voltage extendable via coupling devices
Two separately adjustable response values 1 kΩ…10 MΩ
Combination of AMP^PLUS and other profile-specific measurement methods
Continuous measurement of capacitance, voltage and system frequency
Predefined measurement profiles to meet different requirements
Automatic adaptation to the system leakage capacitance
INFO button to display device and network settings
Self-monitoring with automatic alarm message
History memory with real-time clock (buffer for three days) for storing 1023 alarm messages with date and time
Current and voltage output 0(4)…20 mA, 0…400 μA, 0…10 V, 2…10 V (galvanically separated) which is analogous to the measured insulation value of the system

Permanent coupling monitoring of the measuring lines
Freely configurable digital and analogue inputs and outputs
Two separate alarm relays with potentialfree contact
N/O or N/C operation selectable
High-resolution graphic LC display
IsoGraph function for time-related representation of the insulation resistance
Remote setting of certain parameters via Internet (web server/option; COMTRAXX® Gateway)
Worldwide remote diagnosis via Internet
Modbus TCP, web server and BCOM
Multilingual

AC, DC or AC/DC main circuits
AC/DC main circuits with directly connected DC components, such as rectifiers, converters, variable-speed drives
UPS systems, battery systems
Heaters with phase control
Systems including switched-mode power supplies
IT systems with high leakage capacitances

Type	Nominal system voltage range Un	Supply voltage US	Display	Option W*	Art. No.
iso685-D	AC 0…690 V; 1…460 Hz / DC 0…1000 V	AC 100…240 V; 47…460 Hz / DC 24 V, 100…240 V	X	–	B91067010
iso685W-D*	AC 0…690 V; 1…460 Hz / DC 0…1000 V	AC 100…240 V; 47…460 Hz / DC 24 V, 100…240 V	X	-40…+70°C, 3K5, 3M7	B91067010W
iso685-S + FP200	AC 0…690 V; 1…460 Hz / DC 0…1000 V	AC 100…240 V; 47…460 Hz / DC 24 V, 100…240 V	–	–	B91067210
iso685W-S + FP200*	AC 0…690 V; 1…460 Hz / DC 0…1000 V	AC 100…240 V; 47…460 Hz / DC 24 V, 100…240 V	–	-40…+70°C, 3K5, 3M7	B91067210W