User Manual

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The measurement options are:
 CLEAR: Clear all statistical parameters.
 TRIG: Trigger measurement execution.
3.4.2 Edge Mode
The Edge Mode key allows the user to access two modes.
 % (Percent Error): The user can set the nominal value (NOM) and the percent error (%).
If the nominal value is 100 and percentage is 10, the tolerance will be 100±10%. The
instrument will compare the measured value to the tolerance and determine if the DUT
is HI (above tolerance), LO (below tolerance), or IN (within tolerance).
 ABS (Absolute): The user can set absolute HIGH and LOW limits. The instrument will
compare the measured values to the absolute limits and determine if the DUT is HI
(above the upper limit), LO (below the lower limit), or IN (within limits).
3.4.3 Status
The Status key allows the user to turn the statistical calculations OFF and ON.
 ON: When ON is selected, all functions and buttons are disabled except the trigger and
save screen functions. The instrument makes a statistical measurement at every trigger.
 OFF: When OFF is selected, the statistic measurements are disabled. All other functions
and buttons are enabled.
3.4.4 Statistical Analysis Parameters
Parameter
Variable
Description
Formula
MEAN

Average value




Dev

Population
Standard
Deviation



󰇛 󰇜



Var


Sample
Standard
Deviation





󰇛 󰇜

 

Cp


Process
Capability Index
(Dispersion)



 


CpK


Process
Capability Index
(Deviation)




  

   


Table 2 - Statistical Analysis Parameters