5.1.1 Ranging
Auto Ranging is selected by default and selects the best range for the
digital display and for the analog bargraph.
Pushing the RANGE push button selects a fixed manual range: 60 Arms
first, and 600 Arms on the second push.
The digital display and the bargraph indicate the selected range. RANGE
is displayed at the top of the display indicating a manual range selection.
Selection is also confirmed with audible tone.
To sequence back to Auto Ranging, push and hold the RANGE push
button for approximately 3 seconds. The displayed RANGE indicator will
disappear, confirmed with an audible tone.
5.1.2 Analog Output – Vout
In the Current Measurement mode, the Analog Output Vout is always acti-
vated in A~ (see § 5.8) and the 10 mV/A (or 100 mV/A) signal is present
at the voltage terminals.
5.1.3 Other Functions
All others push-button functions relating to current may be accessed in A:
• THD (%THD, %DF, CF)
• HZ
• PEAK/SMOOTH
• MIN/MAX recording
These functions are described further in this manual (see p. 16-24).
5.1.4 Bargraph
Please note that the analog bargraph will continue to display RMS cur-
rent values while other measurement functions are displayed (e.g. %THD,
%DF, CF, Hz, Min/Max, Smooth, Peak). The bargraph ranges are 60 Arms
and 600 Arms.
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Harmonic Meter Model 721