ISOMETER® iso685-…-B

  • Predefined measurement profiles
  • Reliable measurement of insulation resistance, voltage, capacitance and frequency
  • Integrated web server
  • Modbus TCP
  • Can be used in coupled IT systems

The ISOMETER® is a ground-fault monitoring device in accordance with IEC 61557-8 for IT systems. The device 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, variable-speed drives).


Device variants
iso685-D-B: This device variant ISOMETER® iso685-D-B 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-B: This device variant ISOMETER® iso685-S-B 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-B and iso685W-S-B).

Questions? Contact us!

ISOMETER® isoRW685W-D
ISOMETER® isoRW685W-D
  • Predefined measurement profiles
  • Reliable measurement of insulation resistance, voltage, capacitance and frequency
  • Integrated web server
  • Modbus TCP
  • Can be used in coupled IT systems

The ISOMETER® is a ground-fault monitoring device in accordance with IEC 61557-8 for IT systems. The device 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, variable-speed drives).


Device variants
iso685-D-B: This device variant ISOMETER® iso685-D-B 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-B: This device variant ISOMETER® iso685-S-B 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-B and iso685W-S-B).

Questions? Contact us!

Features

  • 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 AMPPlus and other profilespecific measurement methods
  • Two separately adjustable response value ranges of 1 kΩ…10 MΩ
  • High-resolution graphic LC display for excellent readability and recording of the device status
  • 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
  • RS-485/BS (Bender sensor bus) for communication 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
  • Voltage expandable via coupling devices

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
  • coupled IT systems with high leakage capacitances

ISOMETER® iso685-…-B Variant(s)

TypeNominal system voltage range UnSupply voltage USDisplayOption WArt. No.
iso685-D-BAC 0…690 V; 1…460 Hz /
DC 0…1000 V		AC 24…240 V; 50…400 Hz /
DC 24…240 V		integrated–B91067020
iso685W-D-BAC 0…690 V; 1…460 Hz /
DC 0…1000 V		AC 24…240 V; 50…400 Hz /
DC 24…240 V		integrated-40…+70°C,
3K23, 3M12		B91067020W
iso685-S-B + FP200AC 0…690 V; 1…460 Hz /
DC 0…1000 V		AC 24…240 V; 50…400 Hz /
DC 24…240 V		detached–B91067220
iso685W-S-B + FP200AC 0…690 V; 1…460 Hz /
DC 0…1000 V		AC 24…240 V; 50…400 Hz /
DC 24…240 V		detached-40…+70°C,
3K23, 3M12		B91067220W

Optional Accessories for ISOMETER® iso685-…-B

Type designationTypeArt. No.
Coupling devicesAGH150W-4
AGH204S-4
AGH520S
AGH676S-4		B98018006
B914013
B913033
B913055

Possible measuring instruments on request!

Type designationArt. No.
A set of screw terminals*B91067901
A set of push-wire terminalsB91067902
Enclosure accessories (terminal cover, 2 mounting clips)*B91067903

* included in the scope of delivery

Downloads for ISOMETER® iso685-…-B

NameCategorySizeLanguageTimestampD-/B-Number
RoHS/REACH Report - B91067020 RoHS/REACH Report 261.2 KB 2024/09/0606.09.2024
TÜV NORD - isox685x und FP200x Certificates 436.6 KB DE2023/10/1111.10.2023
TÜV NORD - isox685x and FP200x Certificates 415.9 KB EN2023/10/1111.10.2023
UKCA - iso685 Declarations of Conformity 140.4 KB 2023/07/1414.07.2023
FP200 Datasheets 548.6 KB EN2023/07/3131.07.2023D00179
FP200 CE Declarations of Conformity 82.4 KB 2022/08/1212.08.2022
iso685 CE Declarations of Conformity 87.5 KB 2023/07/1414.07.2023
iso685 Product Brochures 1.8 MB EN2019/05/1313.05.2019D00022
iso685-… Quickstarts 1.6 MB EN2024/02/2828.02.2024D00022
iso685-x-B Manuals 8.9 MB EN2024/09/1818.09.2024D00177
iso685-… Modbus settings Manuals 3.7 MB EN2024/10/2828.10.2024D00022
iso685-x-B Datasheets 4.5 MB EN2024/10/3131.10.2024D00177
iso685-… web server Manuals 208.1 KB EN2024/10/2828.10.2024D00022
Commissioning iso685-S… devices without a connected Display FP200(W) Manuals 1.4 MB EN2021/06/1010.06.2021D00022
iso685(W)-S/D-B Update V1.29 Software 6.3 MB 2021/11/1717.11.2021
FP200 Quickstarts 3.2 MB EN2023/07/3131.07.2023D00179