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Bender launches new subsea cable LIM Insulation Monitoring device

Bender launches new subsea cable LIM Insulation Monitoring device

View all news from: Bender UK Ltd
View directory entry for: Bender UK Ltd

22 March 2018

Bender ISOMETER® iso685 is a market leading insulation monitoring device used by customers worldwide in unearthed IT system AC, AC/DC and DC power supply applications.

This new isoHR685W was designed specifically for subsea cable monitoring to deliver even earlier warning of developing electrical faults in subsea oil and gas applications. 

Below the surface, cables are a significant asset in the extraction of oil and gas from the seabed.  Operators are demanding even earlier warning of insulation cable failure to maximise warning and planning time, as the time and cost penalties to install, replace and repair subsea cables is considerable.

With cable failure impacting both resource and production output, the earlier the warning of developing failure the fewer the losses longer term.


The variant of the iso685, the isoHR685W-D monitors subsea and umbilical cables to provide very advanced warning of cable degradation and failure.  It is designed specifically to meet the needs of the oil and gas industry sector.  The isoHR685W-D examines the cables up to 10Ω, meaning the team working on the oil rig that’s cable has developed a fault will be notified in time to replace and continue with extracting from that subsea well.


•    Subsea cable monitoring

•    Market proven from reputable manufacturer
•    Continuous measurement of capacitance, voltage and system frequency
•    Permanent coupling monitoring
•    Real-time clock with history memory
•    History of readings of the insulation resistance via isoGraph
•    AC, DC or AC/DC main circuits
•    Din rail mount monitoring device
•    5 Year parts warranty
•    Detects faults up to 10Ω
•    Isolation monitoring up to 1,500 VDC with CAT II
•    Principle acc. to 61557-8 for AC and DC systems
•    Monitoring of parallel cables with new technology


•    Provides even earlier warning of developing insulation faults than previous devices
•    Increases safety of operations
•    arable market equivalents
•    Enable earlier deployment of remedial activities
•    Stimulates proactive versus reactive maintenance
•    Helps prevent loss of production and downtime
•    Easy to configure are the pre-set end-user measurement profiles