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Fundamentals of Electrical Safety Testing

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What are the differences between TOS9300 series and previous TOS models?

TOS9300 series is a comprehensive multi-analyzer that expands upon basic AC/DC withstanding voltage and insulation resistance testing.

The additional test capabilities include:

  • 7-inch color LCD display provides clear visibility of test settings, overviews and diagrams for intuitive operation
  • Newly equipped with a numeric keypad for direct value input
  • Front USB port supports keyboard connection for numeric and text entry
  • Easy firmware updates via USB memory
  • Standard LAN, USB, and RS232C communication interfaces
  • Rear-panel I/V terminals (analog monitor) allow oscilloscope monitoring of current and voltage waveforms during the withstanding voltage tests without requiring current sensors or high-voltage probes

For more details, please visit our website > Products.

FREE WEBINAR Fundamentals of Electrical Safety Testing webinar

2026/06/10(Wed)

Fundamentals of Electrical Safety Testing

A Thorough Explanation of Hipot, IR, Ground Bond, and
Leakage Current Testing

Register