User`s manual

Maximizing Measurement Accuracy
This program makes DC voltage measurements on three channels using the
multimeter configuration which makes the most accurate measurements.
Note that measurement accuracy also depends on wiring practices and the
surrounding environment.
10 !Dimension a computer array to store the readings.
20 DIM Rdgs(1:3)
30 !
Clear and reset the multimeter.
40 CLEAR 70903
50 OUTPUT 70903;"*RST"
60 !
Configure the multimeter for DC voltage measurements.
70 !Set autorange and select the minimum (best) resolution.
80 OUTPUT 70903;"CONF:VOLT:DC AUTO,MIN,(@101:103)"
90 OUTPUT 70903;"READ?"
100 !
Enter and display the readings on the computer.
110 ENTER 70903;Rdgs(*)
120 PRINT Rdgs(*)
130 END
Comments
• MIN sets the minimum (best) resolution for the range set by
autorange.
MIN also indirectly selects the aperture time for the most
accurate measurements.
• The terms MIN and MAX often appear as parameter choices in a
command’s syntax.
MIN selects the minimum numeric value for that
parameter.
MAX selects the maximum numeric value for the
parameter. This eliminates the need to look up specific numbers in
the manual.
• CONFigure turns autozero on.
• When making resistance measurements (including thermistors and
RTDs), accuracy can often be increased by turning on offset
compensation (for example,
RESistance:OCOMpensated).
Chapter 3 Using the HP E1326B/E1411B Multimeter 63