To Use Math (Stats) - Keysight Technologies 34420A Service Manual

2 Front-Panel Operation

To Use Math (Stats)

There are two math operations available, only one of which can be enabled at a
time. The meter can either scale the readings as they are taken, or can keep
statistics on a group of reading. The selected math operation remains in effect
until you disable it, change functions, turn off the power, or perform a remote
interface reset.
The scaling math operation is described in the Keysight 34420A User's Guide. This
discussion applies to stats (statistics) operations only.
Enable the statistics by pressing the
MATH menu under the STATS command.
After viewing the stored statistics, press
measurement and continue taking 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
MAX
AVER
STD DEV
PEAK-PEAK
COUNT
Hint
operations. After pressing
Recall). The meter will jump to the 1:STATS command and you can press
66
minimum reading
maximum reading
arithmetic average of all readings
standard deviation of all readings
peak to peak value of minimum and maximum
the total number of readings
You can use the menu recall feature to save steps when using the math
key. Read the statistics gathered in the
Stats
Shift
on the front panel, press
Stats
(Menu On/Off) to return to the
(Menu
Shift
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