User manual

RIGOL Chapter 8 Counter
DG4000 User's Guide
8-6
Statistic
When the statistic function is turned on, the instrument calculates the maximum,
minimum, average and standard deviation of the measurement values
automatically and displays the variation tendency of the measurement values in
"Digital" or "Curve" mode. Press Statist Set to enter the statistic function setting
menu.
1. Turn on or off the statistic function
Press Statist to turn on or off the statistic function and the default is "Off".
2. Set the statistic parameters
You can set the related information of the statistic parameters when the
statistic function is turned off.
Press Statis Para to open the statistic parameter setting menu.
 Press Select Para to select the type of the parameter of the statistic
function. You can select "Freq", "Period", "Duty" "+Width" or "-Width".
The default is "Freq".
 Press Stat En to turn on or off the statistic function of the statistic
parameter.
 Press Statist Length to set the statistic length of the statistic parameter
currently selected. Use the numeric keyboard to input the desired value
and press OK, or use the direction keys and knob to modify the current
value.
 Press TrigCond to set the statistic trigger condition of the statistic
parameter. You can select "Imm.", "< Limit" or ">= Limit".
Imm.: start the statistic operation immediately when the statistic function
is turned on.
< Limit: start the statistic operation when the measurement value is
lower than the preset limit. When "< Limit" is selected, use the numeric
keyboard to input the desired value and select the desired unit from the
pop-up unit menu or use the direction keys and knob to modify the
current value.
>= Limit: start the statistic operation when the measurement value is
greater than or equal to the preset limit. When ">= Limit" is selected, use
the numeric keyboard to input the desired value and select the desired