ISOMETER® iso685-…-P

Predefined measurement profiles
Reliable measurement of insulation resistance, voltage, capacitance and frequency
Integrated web server
Modbus TCP
History memory

The ISOMETER® is a ground-fault monitoring device for IT systems in accordance with IEC 61557-8 and IEC 61557-9. 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).

In combination with the ground-fault locators of the EDS44x series or the appropriate measuring current transformers, a ground-fault location system can be set up with the iso685-…-P.

Device variants
iso685-D-P: This device variant ISOMETER® iso685-D-P features a high-resolution graphic LC display and operating controls for direct operation of the device functions. It cannot be combined with an FP200.
iso685-S-P: This device variant ISOMETER® iso685-S-P features neither a display nor operating controls. It can only be used in combination with the FP200 and it is operated via this front panel.
Option "W": The ISOMETER®s with and without integrated display are available with option „W“ for extreme climatic and mechanical conditions (ISOMETER® iso685W-D-P and iso685W-S-P).

Questions? Contact us!

Predefined measurement profiles
Reliable measurement of insulation resistance, voltage, capacitance and frequency
Integrated web server
Modbus TCP
History memory

The ISOMETER® is a ground-fault monitoring device for IT systems in accordance with IEC 61557-8 and IEC 61557-9. 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).

In combination with the ground-fault locators of the EDS44x series or the appropriate measuring current transformers, a ground-fault location system can be set up with the iso685-…-P.

Device variants
iso685-D-P: This device variant ISOMETER® iso685-D-P features a high-resolution graphic LC display and operating controls for direct operation of the device functions. It cannot be combined with an FP200.
iso685-S-P: This device variant ISOMETER® iso685-S-P features neither a display nor operating controls. It can only be used in combination with the FP200 and it is operated via this front panel.
Option "W": The ISOMETER®s with and without integrated display are available with option „W“ for extreme climatic and mechanical conditions (ISOMETER® iso685W-D-P and iso685W-S-P).

Questions? Contact us!

Features

iso685-…-P

ISOMETER® for IT AC systems with galvanically connected rectifiers or inverters and for IT DC systems (IT = unearthed systems)
Automatic adaptation to the existing system leakage capacitance
Combination of AMP^Plusand other profile-specific measurement methods
Two separately adjustable response value ranges of 1 kΩ…10 MΩ for Alarm 1 and Alarm 2
High-resolution graphical LC display
Connection monitoring (monitoring of the measuring lines)
Automatic device self test
Graphical representation of the insulation resistance over time (isoGraph)
History memory with real-time clock (buffer for three days) for storing 1023 alarm messages with date and time
Current or 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
Freely programmable digital inputs and outputs
Remote setting via the Internet or Intranet (Webserver/Option: COMTRAXX® gateway)
Worldwide remote diagnosis via the Internet (made available by Bender Service only)
RS-485/BS (Bender sensor bus) for data exchange with other Bender devices
ISOnet: Internal separation of the ISOMETER® from the IT system to be monitored (e.g. if several IT systems are interconnected)
BCOM, Modbus TCP/RTU and web server
Locating current injection for selective insulation fault location
Indication of the insulation faults selectively located by the EDS system
Parameter setting of EDS systems
Customer-specific texts for each measuring channel

EDS44x

Insulation fault location in AC, 3AC and DC IT systems
Up to 12 measuring current transformers of the CTAC…, WR…, WS… measuring current transformer series can be connected
Response sensitivity insulation fault location:
EDS440 2…10 mA
EDS441 0.2…1 mA
Response sensitivity residual current measurement:
EDS440 100 mA…10 A
EDS441 100 mA…1 A
Communication of the components via BS bus (RS-485) or BB bus

Applications

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 switch-mode power supplies
IT systems with high leakage capacitances
Installations with insulation fault location