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Startup and Basic Operation
Special Measurements Using Two Ports Simultaneously
The following special measurements only apply when two ports are
simultaneously used in the same window. The Second Port set-
ting in the window’s setup menu allows you to select another port
for the same window. The Second Port setting is enabled depend-
ing on selected quantity and available modules.
Difference Measurement
In difference measurement the difference between the reading of
the main port and the second port is calculated. The reading of the
second port is subtracted from the reading of the main port.
Start the difference measurement by selecting:
D/Menu and B/Window 2 Setup, if needed,
or ,
1/Special Measurement,
Difference Meas….
Notes.
Difference measurement is not available as an option in the list of
special measurements, unless two measurement ports are activated
in the same window.
No setting window appears, but the calculated difference is dis-
played in the special measurement row.
The measurement value of the second port may be assigned to the
Extra Info row at the bottom of the window.
Keep in mind that when the displayed difference reading is small
compared to the actual reading, a significant part of the differ-
ence value may be measurement error. See the specifications
for measurement errors at the actual measurement level.
If the measuring spans of the selected ports are different, make
sure you do not exceed the measurement range of either port.
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