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720A Kelvin-Varley Divider

720A Kelvin-Varley Divider

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The 720A is a high resolution primary ratio standard with absolute linearity of 0.1 ppm, temperature coefficient of linearity of 0.1 ppm/ºC, and self-calibration capability.


  • 0.1 ppm resolution, seven decades
  • 0.1 ppm of input absolute linearity
  • Built-in self-calibration bridge
  • Front panel self-calibration

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TR Calibration has a strong association with most major manufacturers and can source test and measurement equipment to suit your requirements. Combined with our calibration capacity, we have you covered. If you can’t immediately see what you are looking for please contact us and we will provide a quick response.

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