How does an insulation monitoring device (IMD) work?
Explore insulation resistance measurement, the Riso alarm and the relationship between measurement method and system.
Read the technical guideProduct families / Insulation monitoring · IMD / ISOMETER® isoHR685W
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender ISOMETER® isoHR685WInsulation Monitoring Device (IMD)
ISOMETER series for monitoring high insulation resistances, with communication functions for coupled IT systems.
TECHNICAL SUMMARY
Features that distinguish this model.
High insulation resistance
- Two independent alarm thresholds: 1 kΩ…3 GΩ.
- Time-based resistance display with isoGraph and memory for 1023 alarm records.
- BCOM, Modbus TCP, web server and Modbus RTU via RS-485.
- Analogue current/voltage output, programmable digital inputs/outputs and connection monitoring.
FROM PRODUCT TO TECHNICAL KNOWLEDGE
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Explore the product's function and its system's operating principle through technical explanations.
What is an insulation monitoring device (IMD)?
Progress from system type, voltage, leakage capacitance and application conditions to selecting a suitable IMD.
Read the technical guideSystem leakage capacitance and measuring methods in IMD selection
Learn how leakage capacitance and power electronics affect measurement methods and device selection.
Read the technical guideADEO Teknik · Bender distributor in Türkiye
Ask ADEO Teknik Technical product information and supply support for model selection, compatible components and current manufacturer documentation.
MODEL, ORDER AND ACCESSORY INFORMATION
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Model options and technical values
| Model | Nominal system voltage range U n | Supply voltage U S | Display | Order code |
|---|---|---|---|---|
| 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 | internal | 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 | external | B91067225W |
Manufacturer table notes (original language):
* only available in combination
Explore compatible accessories
Compatible accessories · 1
| Model description | Model | Order code |
|---|---|---|
| Coupling devices | AGH150W-4 / AGH204S-4 / AGH520S / AGH676S-4 | B98018006 / B914013 / B913033 / B913055 |
Manufacturer table notes (original language):
Possible measuring instruments on request!
Compatible accessories · 2
| Description | Order code |
|---|---|
| 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 |
Manufacturer table notes (original language):
* included in the scope of delivery
Based on tables on the manufacturer's current product page. For marked-value footnotes, connection conditions and variant suitability, review Bender product source ↗ and the technical documents together. Listing an order code does not commit to stock availability or delivery time.
BENDER MANUFACTURER DOCUMENTS
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6 / 6 documents
Datasheet
isoHR685W-x-I-B
isoHR685W-x-I-B_D00261_D_XXEN.pdfTechnical summary source · pp. 1, 2Open document ↗Operating manualisoHR685W-x-I-B
isoHR685W-x-I-B_D00261_M_XXEN.pdfOpen document ↗Conformity documentiso685
CEKO_iso685.pdfOpen document ↗Conformity documentUKCA - iso685
UKCA_iso685.pdfOpen document ↗Brochureiso685
iso685_B_en.pdfOpen document ↗BrochureEarth fault protection of umbilicals
Earth-fault-protection-of-umbilicals.pdfOpen document ↗No documents match your search. Change the search or document type.
About manufacturer sources
This summary is based on product descriptions and features on the specified pages of the documents above. Consult the manufacturer document for complete technical values, connection information and ordering options.
Current product and variant information · Bender ↗
Data sheets, operating manuals and related manufacturer documents. File names identify the model or accessory; documents retain their original language.
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APPLICATIONS
Its role in your application.
Used in AC/DC main circuits requiring detection of changes at high insulation resistance levels. ISOnet, ISOloop and isoSync functions coordinate measurement in interconnected IT systems.