Fluke’s Calibration 734C DC Reference Standard is the third generation of lab quality voltage reference standard first pioneered by Fluke. It is designed for laboratories that need to maintain traceability to national standards and distribute the volt to production, service, calibration laboratories or other remote locations.

They are the most stable references, only exceeded by a Josephson Junction Array (intrinsic standard for the volt), which is orders of magnitude more difficult and expensive to operate and maintain than a 734C system.

The new 734C adds 1V and 0.1V outputs to facilitate DMM calibration eliminating the cost and complexity of adding external dividers. These new outputs were made possible new thin-film resistive networks, which are manufactured in Fluke’s own microelectronics lab facility.

The internal wire-wound-based resistors have also been replaced by hermetic thin-film resistive networks, which are less prone to time and temperature induced drift, allowing Fluke to enhance the retrace error adder specifications from 24 hours to 14 days, eliminating the need to return the unit to Fluke to restart in case of lost battery power.

Fluke will also start offering ‘Select Models’, which are two times more stable than the base models at 10V.

The 734C consists of four electrically and mechanically independent 732C DC Standards in a rack-width enclosure. Each standard is small and portable with 72 hours of battery life that can be extended to more than 210 hours with the optional external battery and charger.