User`s manual

Measurement Functions
The HP E1326B/E1411B multimeter can make the following measurements:
– DC Voltage
– RMS AC Voltage
– 2-Wire Resistance
– 4-Wire Resistance
– Temperature
Note
The HP E1326B/E1411B multimeter also makes
1
⁄
4
bridge,
1
⁄
2
bridge, and
full bridge strain measurements. Refer to the HP E1355A - E1358A Strain
Gage Multiplexer User’s Manual for descriptions of these functions.
DC Voltage
Measurements
The multimeter can measure DC voltages up to 300 V (170 V with
multiplexers), with resolution down to approximately 30 nV depending on the
range and aperture or integration time. Selectable integration times of 1 or 16
power line cycles (PLC) provide normal mode rejection for measurements in
the presence of noise.
The DC voltage function is specified as:
VOLTage:DC
and generally appears in the MEASure and CONFigure commands as:
MEAS:VOLT:DC? ...
CONF:VOLT:DC ...
RMS AC Voltage
Measurements
The multimeter can measure RMS AC voltages up to 450 Vpeak
(170 Vpeak with multiplexers, 15 Vpeak with FET multiplexers), at
frequencies from 20 Hz to 10 kHz. Measurement resolution down to
approximately 30 nV is achieved with the appropriate range and aperture
or integration time settings. The AC measurements are AC-coupled. This
means that for an AC signal with a DC offset, only the AC amplitude is
measured. The DC offset is prevented (blocked) from reaching the
measurement circuitry of the multimeter.
The multimeter uses a true RMS converter for AC voltage measurements.
This allows accurate measurement of voltages that are noisy, distorted, or
non-sinusoidal such as square waves, triangle waves, sawtooths, and so on.
86 Understanding the HP E1326B/E1411B Multimeter Chapter 4