Fluke 742A

This unit is a high accuracy working standards for precision, on site resistance calibration.

Their excellent temperature stability allows them to be used from 18°C to 28°C with typically less than 2ppm degradation.

Using the calibration table supplied with the standards, which lists corrections in 0.5°C increments, this uncertainty can be reduced to near zero.

No cumbersome oil or air baths are required.

Because this unit is small and rugged, they are easy to transport.

Care has been taken to reduce resistance changes brought about by thermal and mechanical shock.