ISOMETER® isoHR685W

  • 10 GΩ measurement
  • Integrated web server and Modbus TCP communication
  • Early detection enhances operational safety and maintenance planning possibilities.
  • Synchronisation in systems coupled via capacitances
  • High adaptability to systems with different properties

The ISOMETER® is an insulation monitoring devices in accordance with IEC 61557-8 for IT systems. The devices are 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).

A measuring range of up to 10 GΩ allows the trend of the insulation level to be recognized at an early stage. Therefore, the ISOMETER® is predestined for monitoring subsea cables in the oil and gas industry.

Questions? Contact us!

ISOMETER® isoHR685W-…-I-B
ISOMETER® isoHR685W-…-I-B
  • 10 GΩ measurement
  • Integrated web server and Modbus TCP communication
  • Early detection enhances operational safety and maintenance planning possibilities.
  • Synchronisation in systems coupled via capacitances
  • High adaptability to systems with different properties

The ISOMETER® is an insulation monitoring devices in accordance with IEC 61557-8 for IT systems. The devices are 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).

A measuring range of up to 10 GΩ allows the trend of the insulation level to be recognized at an early stage. Therefore, the ISOMETER® is predestined for monitoring subsea cables in the oil and gas industry.

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 profile-specific measurement methods
  • Two separately adjustable response value ranges of 1 kΩ…3 GΩ for alarm 1 and alarm 2
  • 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).
  • Remote diagnosis via the Internet (made available by Bender Service only)
  • isoData: Continuous uninterrupted data transmission
  • isoSync: Timely synchronization of measurement processes
  • RS-485/BS (Bender sensor bus) for data exchange with other Bender devices via Modbus RTU protocol
  • BCOM, Modbus TCP und web server
  • ISOnet: Internal separation of the ISOMETER® from the IT system to be monitored (e.g. if several IT systems are interconnected)
  • ISOnet priority: Permanent priority of a device within the network
  • ISOloop: Special function for ring systems (all systems are coupled)

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
  • Monitoring of long capacitive coupled lines
  • Monitoring of submarine cables

ISOMETER® isoHR685W Variant(s)

TypeNominal system voltage range UnSupply voltage USDisplayArt. no.
isoHR685W–D–I–BAC 0…1000 V; 0.1…460 Hz /
DC 0…1300 V
AC 24…240 V; 50…400 Hz /
DC 24…240 V
integratedB91067025W
isoHR685W–S–I–B + FP200W*AC 0…1000 V; 0,1…460 Hz /
DC 0…1300 V
AC 24…240 V; 50…400 Hz /
DC 24…240 V
detachedB91067225W

* only available in combination

Optional Accessories for ISOMETER® isoHR685W

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

Possible measuring instruments on request!

DescriptionArt. No.
A set of screw terminals*B91067901
A set of push-wire terminalsB91067902
Enclosure accessories (terminal cover, 2 mounting clips)*B91067903
BB bus 6TE connectorB98110001

* included in the scope of delivery

Downloads for ISOMETER® isoHR685W

NameCategorySizeLanguageTimestampD-/B-Number
UKCA - iso685 Declarations of Conformity 140.4 KB 2023/07/1414.07.2023
iso685 CE Declarations of Conformity 87.5 KB 2023/07/1414.07.2023
isoHR685W-x-I-B Datasheets 1.4 MB EN2023/08/0303.08.2023D00261
isoHR685W-x-I-B Manuals 12.4 MB EN2022/09/3030.09.2022D00261
isoHR685W-x-I-B Quickstarts 4.6 MB EN2021/12/0101.12.2021D00261
Earth fault protection of umbilicals Flyers 450.1 KB EN2019/08/2828.08.2019
isoHR685(W)-S/D Update V1.27 Software 6.3 MB 2021/11/1717.11.2021D00261
iso685 Product Brochures 1.8 MB EN2019/05/1313.05.2019D00022