Safe & Monitor

V-LIM provides a clear picture of your subsea systems health

Precise & accurate electrical cable integrity monitoring.

Prolonged operation and harsh environments can degrade insulation in electrical cables and equipment. The V-LIM delivers continuous, highly accurate measurements of insulation resistance (up to 1GΩ V-LIM and 10GΩ V-LIM2), capacitance,and other key parameters providing real-time insight into system health.

By detecting early signs of degradation and tracking trends, V-LIM enables proactive, risk-based maintenance to prevent failures and reduce costly reactive repairs. Advanced Digital Signal Processing and optimised measurement profiles ensure reliable fault detection and system characterisation, while V-NET Sync minimises cross-talk for precise readings.

V-LIM offers flexible retrofit and portable options and is fully V-LIFE ready for automated insulation resistance recovery. Features include adjustable alarms with configurable relays, real-time alerts, a touchscreen LCD, and USB connectivity for easy data access.

Whether standalone or integrated, V-LIM delivers actionable insights that support long-term asset integrity and operational reliability.

There is a range of V-LIM product variants available to suit multiple requirements. Contact us for more information or learn more about V-LIM2 below.

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V-LIM & V-LIM2: Real-time monitoring with predictive insights.

With configurable alarm thresholds, real-time alerts, a touchscreen LCD interface, and USB connectivity, V-LIM delivers actionable insights to maintain asset integrity and enhance operational reliability, whether used as a standalone unit or integrated into a larger system. Continuous data logging and remote access enable expert assistance and efficient troubleshooting whenever needed.

Two generations of V-LIM are available:

V-LIM: provides advanced insulation resistance (IR) monitoring for topside systems, offering real-time visibility, early fault
detection, and industry-leading accuracy.

V-LIM2: builds on this with enhanced monitoring capabilities, support for advanced analysis and automation, and an intuitive interface designed to enable faster, smarter decisions.

Customers can easily upgrade from V-LIM or other panel-mounted IMDs to V-LIM2. Engineered for both greenfield and brownfield applications, V-LIM2 meets evolving industry needs and, when paired with PlatformVi, empowers operators with trend monitoring and remote features like automated IR recovery via V-LIFE.

Fifteen years plus of demonstrated reliability and global adoption make V-LIM and V-LIM2 trusted solutions, with 800 units deployed worldwide.

Be V. smart. Be V-LIFE ready.

V-LIFE — Learn more
Ensure your system is V-LIM ready.
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Product features.

  • Two functionally identical variants for different supply voltages, V-LIM and V-LIM 24V
  • Two separately configurable alarms with associated relay contacts to take desired action
  • Timestamped measurement data is logged to internal memory
  • Touchscreen LCD and web interface displays
  • Ethernet, RS485 and 4-20mA interfaces
  • Upload firmware and configuration settings from front panel USB interfaces via memory stick or service PC
  • Download data log to memory stick or service PC
  • Compatible with temporary application of external IR test unit without physical disconnection of V-LIM
  • Multiple user security levels supported for secure access
  • Facility to disconnect the V-LIM from the line monitored
  • Cross talk immunity option. Enables multiple units to take accurate simultaneous measurements on adjacent cables. This option is also known as V-Net® Sync
  • Coupler Module connection capability for voltage >1kV
  • Built-in self-test

Additional features include:

  • V-LIFE® cable remediation technology
  • V-SLIM® integration for V-IR network condition
    monitoring

  • V-LIFE® — Award-winning cable rejuvenation technology
  • Two power supply input options, AC and DC, provided in a single variant
  • Two separately configurable alarms with associated relay contacts to take desired action
  • Timestamped measurement data is logged to internal memory
  • High-resolution LCD touchscreen and web interface displays
  • Ethernet, RS485 and 4-20mA interfaces
  • Upload firmware and configuration settings from front panel USB interfaces via memory stick or service PC
  • Download data log to memory stick or service PC
  • Compatible with temporary application of external IR test unit without physical disconnection of V-LIM2
  • Multiple user security levels supported for secure access
  • Facility to disconnect the V-LIM2 from the line monitored
  • Cross-coupling immunity provided by V-NET® Sync feature, enabling multiple V-LIM2 units to take accurate simultaneous measurements on adjacent cables by eliminating affects of cross-coupled electrical noise
  • Coupler Module connection capability for voltage >1kV
  • Built-in self-test and facility to allow testing of IR indicating interfaces
  • Power monitoring capability using split line current transformer accessory

  • V-LIFE ready – increases IR without subsea intervention
  • Accurate monitoring and trending of IR levels over a wide range from 1kΩ to 1GΩ (V-LIM) and 1kΩ to 10GΩ (V-LIM2)
  • Monitors Insulation Capacitance up to 150µF
  • Multiple power supply options
  • Interface modules allow for easy replacement of legacy equipment
  • Significantly reduces levels of copper loss compared to competing insulation monitoring devices (IMDs). Reduced further when V-LIFE is active

  • Electro-Hydraulic Subsea Production Control Systems
  • Mission critical IT (unearthed) electrical distribution systems

Install V-LIM and be V-LIFE ready.

Get in touch.

Get in touch

Contact us to find out more about how our products & services could help maximise the operational life of your controls and electrical distribution equipment.

Our expert teams are equipped with the relevant experience and skills to provide support and to answer your technical queries, email us at enquiries@viperinnovations.com or via our contact form.