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!

ISOMETER® iso685-…-P
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!

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 AMPPlusand 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

ISOMETER® iso685-…-P Variant(s)

TypeNominal system voltage range UnSupply voltage USDisplayOption WArt. No.
iso685-D-PAC 0…690 V; 1…460 Hz
DC 0…1000 V
AC 24…240 V; 50…400 Hz
DC 24…240 V
integratedB91067030
iso685W-D-PAC 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
B91067030W
iso685-S-P + FP200AC 0…690 V; 1…460 Hz
DC 0…1000 V
AC 24…240 V; 50…400 Hz
DC 24…240 V
detachedB91067230
iso685W-S-P + FP200WAC 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
B91067230W

Optional Accessories for ISOMETER® iso685-…-P

Insulation fault locators

TypeSupply voltage USResponse valueArt. No.
EDS440-S-1AC/DC 24…240 V2…10 mAB91080201
EDS440W-S-1AC/DC 24…240 V2…10 mAB91080201W
EDS440-L-4AC/DC 24…240 V2…10 mAB91080202
EDS440W-L-4AC/DC 24…240 V2…10 mAB91080202W
EDS441-S-1AC/DC 24…240 V0,2…1 mAB91080204
EDS441W-S-1AC/DC 24…240 V0,2…1 mAB91080204W
EDS441-L-4AC/DC 24…240 V0,2…1 mAB91080205
EDS441W-L-4AC/DC 24…240 V0,2…1 mAB91080205W
EDS441-LAB-4AC/DC 24…240 V0,2…1 mAB91080207
EDS441W-LAB-4AC/DC 24…240 V0,2…1 mAB91080207W


Relay module

TypeSupply voltage USArt No.
IOM441-SDC 24 VB95012057
IOM441W-SDC 24 VB95012057W
Type designationArt. No.
A set of screw-type terminals*B91067901
A set of push-wire terminalsB91067902
Enclosure accessories (terminal cover, 2 mounting clips)*B91067903
BB bus 6TE connector**B98110001

* included in the scope of delivery
** Necessary for the connection of the ISOMETER®s with an EDS44…-S

Downloads for ISOMETER® iso685-…-P

CategoryNameSizeLanguageTimestampD-/B-Number
Certificates TÜV NORD - isox685x und FP200x 449.0 KB DE2023/01/12 14:43:2912.01.2023 14:43:29
Certificates TÜV NORD - isox685x and FP200x 443.4 KB EN2023/01/12 14:43:3712.01.2023 14:43:37
Declarations of Conformity UKCA - iso685 140.4 KB 2023/07/14 08:43:2114.07.2023 08:43:21
Datasheets FP200 548.6 KB EN2023/07/31 07:38:0131.07.2023 07:38:01D00179
CE Declarations of Conformity FP200 82.4 KB 2022/08/12 06:17:2412.08.2022 06:17:24
CE Declarations of Conformity iso685 87.5 KB 2023/07/14 08:43:2414.07.2023 08:43:24
Product Brochures iso685 1.8 MB EN2019/05/13 10:31:0113.05.2019 10:31:01D00022
Quickstarts iso685-… 2.5 MB EN2021/03/02 13:36:1902.03.2021 13:36:19D00022
Manuals iso685-… Modbus settings 844.0 KB EN2021/08/25 07:16:4225.08.2021 07:16:42D00022
Manuals iso685-x-P 15.7 MB EN2022/06/09 10:48:3109.06.2022 10:48:31D00170
Datasheets iso685-x-P 1.6 MB EN2023/08/10 08:53:5710.08.2023 08:53:57D00170
Manuals iso685-… web server 560.5 KB EN2019/05/13 10:31:5313.05.2019 10:31:53D00022
Manuals Commissioning iso685-S… devices without a connected Display FP200(W) 1.4 MB EN2021/06/10 12:48:1210.06.2021 12:48:12D00022
Software iso685(W)-S/D-P Update V1.30 7.0 MB 2022/12/09 09:39:1109.12.2022 09:39:11
Quickstarts FP200 3.2 MB EN2023/07/31 07:22:5831.07.2023 07:22:58D00179
Software BCOM Group Manager 72.1 KB 2019/05/13 10:32:1313.05.2019 10:32:13