DOLD’s VARIMETER IMD series of insulation monitoring devices

22-09-2025

How safe are your legacy electrical systems?

DOLD’s VARIMETER IMD series of insulation monitoring devices keeps legacy electrical systems safe, efficient, and compliant – spotting insulation faults before they cause costly downtime or put people at risk.

Across the UK, many commercial, industrial, and public buildings still rely on electrical systems that are 20–40 years old. As insulation ages, risks increase, including:

• Leakage currents
• Nuisance tripping
• Equipment stress and failures
• Compliance gaps with BS 7671

The VARIMETER IMD series delivers the monitoring and insight needed to keep legacy systems safe, efficient, and future-ready.

Continuous Safety Assurance

• Real-time fault detection – not just periodic checks
• Proactive maintenance planning
• Fewer outages and repairs
• Extended service life of older systems

Protecting Efficiency

• Detects hidden energy losses from:
  • Leakage currents
  • High impedance
  • Uneven load distribution
• Reduces waste and improves system reliability

Future-Ready Control

• Ideal for sites with incomplete or outdated documentation
• Provides a platform to:
  • Enable smart load scheduling
  • Integrate renewable energy sources
  • Support advanced optimisation strategies

With DOLD’s VARIMETER IMD series, distributors gain a strong retrofit product, contractors deliver added client value, and engineers ensure that even legacy systems remain safe, efficient, and future-ready.

Want to know more about the VARIMETER IMD Series? [Click Here!]

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