WILMA | A Portable Time Domain Reflectometer

What It Is:

LiveWire’s Mobile Service Pack, dubbed WILMA (Wiring In-Line Maintenance Aid), is a portable Spread Spectrum Time Domain Reflectometer.

How It Works:

The LiveWire Mobile Service Pack (MSP) detects and locates intermittent faults on live and dead wires/cables. It records the type of fault, distance to fault, and time of occurrence and reports the information to an instrumentation computer via USB.

Applied Uses:

The Mobile Service Pack WILMA can be applied in a variety of contexts, including: aerospace, industrial, communications, computer networks, structural cables and anything with complex wiring systems.

Key Features:

• Detection and location of intermittent faults on live or dead wires
• Multiple frequency testing allows the monitoring of wires up to 900 feet
• Monitors 1 to 4 Wires (see detail below)
• Detection of 5 millisecond or longer duration arc faults.
• Location of open circuits, short circuits, and arc faults
• Unique technology allows fault location in noisy environments  (e.g. live communication and power distribution wires)

Technical Specifications:

• Distance to Fault Accuracy:
  • +/- 2 feet for Wire Length <= 150 ft.
• Maximum Input Ratings for Powered Lines
  • Voltage below are Out of the box and can be customized for different applications
  • Powered AC Voltages: Up to 285 VAC @ 60 or 400 Hz (800 V peak-to-peak)
  • Powered DC Voltages: Up to 600 VDC
• Monitors 1 to 4 Wires (Wires are Multiplexed)
  • Single wire monitoring for Live arc faults
  • Up to 4 wires for non-powered or communication wires
• External Power:
  • USB 2.0 Power Lines from Laptop
  • USB Cable Included
• Cable Connectors: Custom Per Purchase Order (6 Pin Amphenol standard)
• Output Signal Amplitude: 0.016– 0.124 V peak-to-peak selectable
  • EMI certified as per MIL-STD-461
• PC Software:
  • Wire Test Studio version 6.0
  • Operating system: Windows XP