3 Features and Functions
88 Keysight 34420A User’s Guide
Statistics
– After you enable statistics, the first reading that the meter takes is stored as
both the minimum and maximum value. The minimum is replaced with any
subsequent value that is less. The maximum is replaced with any subsequent
value that is greater.
– All values are stored in volatile memory; the meter clears the values when stats
is turned on, when power has been off, or after a remote interface reset or
preset.
– When enabled, the following statistics are available:
MIN minimum reading
MAX maximum reading
AVER arithmetic average of all readings
STD DEV standard deviation of all readings
PEAK – PEAK peak to peak value of minimum and maximum
COUNT the total number of readings
– Front Panel operation: Enable the statistics by pressing the key. Read
the statistics gathered in the MATH menu under the STATS command.
After reading the stored statistics, press
(Menu On/Off) to return to
the measurement and continue taking statistics.
– Remote operation: the math operations and registers are controlled using
math operation commands. First, select the math operation you want to use
CALCulate:FUNCtion AVERage
Then, enable the selected math function by turning the math state on:
CALCulate:STATe ON
When you have finished collecting readings, obtain the desired statistics:
CALCulate:AVERage
:MINimum?
:MAXimum?
:AVERage?
:SDEViation?
:PTPeak?
:COUNt?
After reading the statistics, supply another trigger to continue taking
measurements and collecting statistics. Measurements are not taken while
reading the results.
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