The HP 3478A digital voltmeter
features selectable 3 1/2 to 5 1/2 digit resolution and 5 autoranging functions offer flexibility in automated testing.
The 3478A can measure DCV, true RMS ACV, 2 and 4 wire ohms, dc current, and ac current.
Selectable speed and resolution provide the right capability for your measurement.
The 3478A can perform production tests or acquire experimental data at 71 readings/sec with 3 1/2 digit resolution, or take 33 readings/sec with
130 dB of noise rejection using 4 1/2 digits.
The 5 1/2 digit mode offers 100 nVDC and 100 micro ohm resolution for precise measurements.
True RMS with 300 kHz bandwidth and 4:1 crest factor provides reliable measurements of ac signals. Fast autoranging makes the first reading
useful and accurate.
Switchable front/rear inputs permit flexible signal connections.
The Voltmeter Complete output and external trigger input allow synchronization of the 3478A with a scanner for fast multiplexed measurements without
the delay of software commands.
The test program can automatically present messages or results on the alphanumeric liquid crystal display. The operator can then respond by pressing
the 3478A's SRQ key to interrupt the controller and start the next test.
Built in self test capability assures proper operation.
86 to 250V AC, 48 to 440 Hz, 25VA max.