Model 4920
Alternating voltage measurement standard
Much easier and faster to use than traditional AC/DC thermal transfer standards
28 ppm (1-year, 5 C) total uncertainty in stand-alone measurement mode
14 ppm (1-year, 5 C) total uncertainty in AC/DC transfer mode
1 mV to 1000V and 1 Hz to 1.25 MHz, with simultaneous display of voltage and frequency
50 MHz bandwidth option for supporting calibrators with wideband capabilities
Takes high accuracy AC measurements within 2.5 seconds, including settling time
Fully programmable via the IEEE-488 bus
