User Manual

The menu system
Datalog
You can configure the USB data logging interval. To confi gure the data logging
interval, press
, go to Interfaces and select USB Host Data Out.
Math results
The math results are displayed on a different results screen from the other results.
This improv
es the ability to view math results. Normal measurement parameters
can be displayed on the math results screen. T hey just have to be specified in a
formula. (See page 20, Math screen.)
You can set the values of up to 30 math functions, labelled FN1 through FN30.
For each function y ou can specify the following:
Name. User-friendly name up to 10 characters. (Default is the same as the
label, for example, FN1.) In the menus, the function label is always displayed
alongside the user’s name for the function.
Units. User friendly units such as W for watts. (Default is blank). Scaling
such as
u, m, k, M will be added to th e unit as appropriate. Units are up to
four characters.
Function. The actual math formula, up to 100 characters.
Example: W = 21.49, VA = 46.45
Name = “PF”
Uni
ts=“PF”
Function = “CH1:W / CH1:VA”
To select this function for viewing, go to the MATH menu list showing FN1 –
FN30 and press
to select the function. Next press to display the
result value o f the function; the math results display shows
“PF 463.27
mPF”
.
Example: CH1:W = 21.49, CH2:W = 53.79
Name = “EFFICIENCY”
Units=“%”
Function = “(CH1:W/CH2:W)*100”
To select this function for viewing, go to the MATH menu list showing FN1 –
FN30 and press
to select the function. Next press to display the
result value of the function; the math results display shows
“EFFICIENCY
39.95 mW”
.
56 PA3000 Power Analyzer User Manual