Casio CFX-9850G User Manual page 59

Chapter 3: Commands and Programming
Example 3: Improving probe accuracy
The following example produces calibration values for improving the accu-
racy of sampling using a light probe.
{1,0}"List 6!
Send(List 6)!
{1,1,1}"List 6!
Send(List 6)!
ClrText!
"HOW MANY POINTS"?"N!
Seq(0,X,1,N,1)"List 2!
Seq(0,X,1,N,1)"List 3!
For 1"I To N Step 1!
ClrText!
"ENTER BASE VALUE"?"B!
B"List 2[I]!
{3,0.01,5,0,0}"List 6!
Send(List 6)^
Receive(List 4)!
(Sum List 4-Min(List 4)-Max(List 4))÷3"List 3[I]!
Next!
QuadReg List3, List2!
"FINISHED"!
"A=":a^
"B=":b^
"C=":c
Values a, b, and c obtained by this program are specified using Command 9
before performing actual sampling.
{9,Channel,2,a,b,c}"
List 6
Send(List 6)
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• When performing calibration to improve accuracy, it is necessary to first
produce reference values using a high-accuracy measuring instrument.
Specify five points (approximate maximum,
minimum of sampling range and additional
3 points) for this example.
Input of reference value. At this time, light
probe should be in state that will be experi-
enced during sampling.
("Channel" is the specification of the chan-
nel to be used for sampling.)