HP 3457A has seven functions with 3 1/2 to 6 1/2 digits of resolution extendable to 7 1/2 digits at reading rates from 1 reading every 2 seconds to 1350 rds/s and basic DC volts accuracy as good as 5 ppm.  In addition, the input of the 3457A can be expanded up to ten channels with either of the optional plug-in multiplexer assemblies.  On the bench, the front panel operation is extremely flexible and comprehensive.  In systems, the Hewlett-Packard Interface Bus (HP-IB) is standard.

The 3457A combines superb analog measuring capability with equally powerful measurement management.  More than 1000 readings or whole measurement sequences can be stored in the 3457A for convenient and fast measurement throughput.  The present dmm setup can be stored in the non-volatile state memory for convenient reconfiguration of the dmm.

Additional power from math functions can be obtained by using PASS/FAIL limit testing, NULL, SCALE, THERMISTOR linearization, and others.  The power of total electronic calibration, including AC volts, makes it easy to maintain instrument performance.

System Features

Keeping with HP's long tradition of systems oriented digital multimeters, the 3457A has all the systems features you've come to expect plus more to make interfacing to your computer even easier - features like flexible formatting of ASCII, 16 bit binary, or 32 bit binary data and buffer memory so that you can take measurements with the 3457A at its highest speed.  In addition, you'll find the VOLTMETER COMPLETE output and EXTERNAL TRIGGER input signals ideal for synchronizing other instrumentation with the 3457A.  Finally, programmable front-rear terminal switching lets you measure two separate inputs without a scanner.