News

12 May 2016 - 3:36pm

New! The CAL BOX – Available Now

Kewtech are delighted to announce the arrival of the CAL BOX, which checks your 17th Edition testers for consistency of continuity and insulation measurements on site and it fits all universal 4mm test leads.

The key features are;

  • Three Continuity Test Points
  • Three Insulation Test Points
  • A Common / Null Terminal
  • High Quality 2% Resistors.

Continuity checks are made using the right-hand 4mm terminals. If your tester has a null function connect the two leads to the two lower COM – NULL 4mm terminals and ‘null out’ the test lead resistance value. To check values, remove one test lead only and re-connect to the required value to check - make the measurement and check the reading of your tester against the value selected.

Insulation checks are made using the left-hand 4mm terminals. There is no requirement to null the test leads for checking insulation values. Place one lead in a lower COM – NULL 4mm terminal. To check values, connect the other test lead to the required value to check - make the measurement and check the reading of your tester against the value selected.

Unlike most simple Check Boxes the Kewtech CAL BOX uses precision components which give better than 2% accuracy.

Visit our CAL BOX page here.

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