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1
Introduction
Analog bar graph
The analog bar emulates the needle on an analog multimeter, without displaying the
overshoot. When measuring peak or null adjustments and viewing fast-changing inputs,
the bar graph provides a useful indication because it has a faster updating rate
to fast-response applications.
For frequency, duty cycle, pulse width, 4-20 mA % scale, 0-20 mA % scale, dBm, dBV, and
temperature measurements, the bar graph does not represent the primary display value.
For example, when frequency, duty cycle, or pulse width is displayed on the primary display
during voltage or current measurement, the bar graph represents the voltage or current
value (not the frequency, duty cycle, or pulse width value). Another example is when the
4-20 mA % scale or 0-20 mA % scale is displayed on the primary display, the bar graph
represents the current value and not the percentage value.
The "+" or "–" sign indicates whether the measured or calculated value is positive or
negative. Each segment represents 200 or 33.3 counts depending on the range indicated
on the peak bar graph.
Table 1-11
Range
An unstable bar graph and unmatched primary display when measuring DC voltage usually
means the presence of AC voltages in the circuit if the DC Filter is disabled in the Setup
mode.
[1] The analog bar graph measurement rate is approximately 30 times/second for DC voltage, current, and
resistance measurements.
46
Analog bar graph display
Counts/Segments
2000
333
Keysight U1281A/U1282A User's Guide
[1]
to cater
Used for the function
V A
,
,
,
V A
,
,
,
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