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.
- 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.
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)
| Type | Nominal system voltage range Un | Supply voltage US | Display | Art. no. |
|---|---|---|---|---|
| isoHR685W–D–I–B | AC 0…1000 V; 0.1…460 Hz / DC 0…1300 V | AC 24…240 V; 50…400 Hz / DC 24…240 V | integrated | B91067025W |
| 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 | detached | B91067225W |
* only available in combination
Optional Accessories for ISOMETER® isoHR685W
| Type designation | Type | Art. No. |
|---|---|---|
| Coupling devices | AGH150W-4 AGH204S-4 AGH520S AGH676S-4 | B98018006 B914013 B913033 B913055 |
Possible measuring instruments on request!
| Description | Art. No. |
|---|---|
| A set of screw terminals* | B91067901 |
| A set of push-wire terminals | B91067902 |
| Enclosure accessories (terminal cover, 2 mounting clips)* | B91067903 |
| BB bus 6TE connector | B98110001 |
* included in the scope of delivery
Downloads for ISOMETER® isoHR685W
| Name | Category | Size | Language | Timestamp | D-/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 | EN | 2023/08/0303.08.2023 | D00261 |
| isoHR685W-x-I-B | Manuals | 12.4 MB | EN | 2022/09/3030.09.2022 | D00261 |
| isoHR685W-x-I-B | Quickstarts | 2.8 MB | EN | 2024/05/2929.05.2024 | D00261 |
| Earth fault protection of umbilicals | Flyers | 450.1 KB | EN | 2019/08/2828.08.2019 | |
| isoHR685(W)-S/D Update V1.27 | Software | 6.3 MB | 2021/11/1717.11.2021 | D00261 | |
| iso685 | Product Brochures | 1.8 MB | EN | 2019/05/1313.05.2019 | D00022 |