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Support for your most
demanding ac traceability requirements
The Fluke 792A is an
ultra-high accuracy AC/DC Thermal Transfer Standard,
designed to meet the most demanding ac traceability
requirements. Using the patented Fluke RMS sensor and
thin film range resistors, the 792A offers an
extraordinary transfer accuracy, with total
uncertainties of as low as ±10 ppm (±5 ppm from the
National Institute of Standards and Technology ¾ NIST).
The 792A also provides a wide voltage range of 2 mV to
1000V, and a wide frequency range of 10 Hz to 1 MHz.
The Fluke solid-state RMS
sensor also provides the 792A with remarkable
temperature stability and fast settling time. Now you
can be ready to make measurements in 30 seconds instead
of 30 minutes. To simplify the transfer process, the
792A's 2V output permits you to use a high-resolution
digital multimeter rather than a null meter.
The Fluke 792A is designed
to support the calibration of the most accurate ac
instruments in your standards lab workload, including
calibrators like the Fluke 5700A/5720A, voltmeters like
the Fluke 8506A or the HP 3458A, and ac measurement
standards like the Fluke 5790A.
The 792A consists of four
units. The Transfer Unit is the main analog component of
the 792A for the 20 mV to 220V ranges. Stainless Steel
Type-N connectors assure low signal loss and high
measurement repeatability. The separate Power Pack unit
permits the Transfer Unit and 1000V Range Resistor to be
shipped independently for calibration. The 1000V Range
Resistor isolates the heat generated at high voltages
outside the main Transfer Unit. The Range Resistor has a
low temperature coefficient, stabilizes quickly and
exhibits small ac/dc differences. The Transfer Switch
provides for switching between the ac and dc inputs.
Each 792A is shipped from
the factory traceable to national standards. Each 792A
also includes a table of correction factors and
uncertainties for measured ac/dc differences.
Fluke A40
and A40A support ac current transfer
measurements. An optional 792A-7004 Adapter is required.
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