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THE NEW FLUKE Calibration 734C DC Reference Standard is the third generation of lab quality voltage reference standards 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, says the manufacturer.

The new 734C adds 1 V and 0.1 V 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 fab 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The internal wire- wound- based resistors have also been replaced by hermetic thin-film resistive networks, which are less prone to time and temperature induced drift, letting Fluke enhance the retrace error adder specifications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 t wo times more stable than the base models at 10 V thanks i n large part to the process enhancements to the Zener reference technology pioneered i n the popular 732A and 732B.

The 734C consists of four electrically and mechanically independent 732C DC Standards in a rack- width enclosure. Each standard is small and highly portable with 72 hours of battery life that can be extended to more than 210 hours with the optional external battery and charger, making it practical to ship a 732C across town or around the world.

The RoHS- compliant 734C delivers:

• Independence. The 734C is the only standard of its type offering complete mechanical and electrical independence of each of its four standards.

• Portability. Each 732C Standard is designed for portability. Each is small, light, rugged, and has a long operating battery life.

• Confidence. The 732C is based on the proven technology of the Fluke Calibration 732A/B. The 732A was the first standards lab quality electronic reference to gain wide acceptance as a replacement for saturated standard cells. Originally designed for internal transfers of Fluke’s corporate volt to the production floor, thousands are now in service worldwide in a variety of applications — from maintaining an institutional reference to transferring values from national labs or privately- operated 10 V Josephson Arrays.

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