Reference Multimeter and 8 ½ Digit Multimeter
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ACI Ext Shunt Measure Setup Menu
The section explains the ACI Ext Shunt (Measure Setup) menu submenu.
• Signal path coupling: Choose (AC) or (DC).
• Secondary Reading: In the ACI function, a secondary reading can be
shown. This menu choices are:
o (Shunt Voltage)
o (Frequency)
o (Period)
o (Power Uncertainty) Power uncertainty is based on the shunt
input current level, the power reference level and power coefficient.
Power uncertainty is the symmetrical uncertainty due to the self-heating
of the shunt based on the input current level. See Calculation of the
Power Uncertainty.
o (More) additional Secondary Reading parameters
(Pk to Pk) (repeated for ease of use)
(Positive Peak)
(Negative Peak)
(Crest Factor)
(More) Shows:
• (Positive Peak) (repeated for ease of use)
• (Negative Peak
)
• (Cre
s
t Factor)
• (OFF)
• (More) returns the to the top level of the Measure Setup
menu.
When Pk to Pk is selected, the Peak to peak method becomes active. (see
below).
• Frequency path coupling: The frequency path coupling can be AC or DC if
the signal path coupling (above) is set to DC. Otherwise, only AC is available.