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8808A
Users Manual
A-2
eue25.eps
Figure A-1. Example of Dual Display Showing Volts AC and Frequency
Using Measurement Functions in Combination
The dual display allows you to display select combinations of measurements for the input
signal being measured. Allowable combinations of properties are shown in Table A-1.
Volts (dc + ac) rms or current (dc + ac) rms measurements can only be made in the
primary display. While (dc + ac) measurements are being made, another function cannot
be selected for the secondary display.
Additional combinations of dual readings can be added by using the relative readings,
minimum/maximum, and/or Touch Hold function modifiers.
Table A-1. Allowable Combinations of Measurements
Primary Function
DC V AC V DC I
[1]
AC I FREQ OHMS
DC V X X X X
AC V X X X X X
DC I X X X X
AC I X X X X
FREQ X X
Secondary Function
OHMS X
How the Meter Takes Dual Display Measurements
When the Meter is in the dual display mode (both the primary and secondary displays are
on), the Meter takes measurements and updates the displays in one of two ways: (1) It
takes a single measurement and updates both displays using that measurement; or (2) it
updates each display using a separate measurement.
Updating Primary and Secondary Displays with a Single Measurement
The Meter takes a measurement and updates both displays using that measurement only
when the measurement function is the same for both the primary and secondary displays.
This will happen, for instance, if Touch Hold (with autoranging on) is applied to a
measurement function on the primary display and the same function is selected for the
secondary display.
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