121
Correcting Measured Values with a User-specied Correction Coefcient (Correlation Correction)
5.7
Correcting Measured Values with a User-specied
Correction Coefcient (Correlation Correction)
This functionality enables you to correct measured values using a user-specied correction coef-
cient. This function can be used to provide compatibility among measurement devices.
Set the correction coefcients A and B for the measurement values of No. 1 to
No. 4 parameters to correct by the expression on the right.
(See "Appx. 1 Measurement Parameters and Calculation Formula" (p. Appx.1).)
Y = A × X + B
However, if the parameter corresponding to X is either D or Q, scaling is applied
to
θ
as shown in the expression on the right, and then D or Q is obtained from
θ
'.
θ
' = A ×
θ
+ B
X: No. 1 or No. 3 parameter measurement value Y: the last measurement value
θ
': correction value of
θ
A: integration value of the measured value X B: the value added to measured value X
Screen display method (For more information, see p. 27):
(Measurement screen) ADJ key>(ADJ screen) SCALE key
1
Touch the ON key, and then touch the
EXIT key.
1
2
When you wish to cancel scaling
Touch OFF.
2
Select the correction coefcient of the
parameter you want to change.
The parameters and correction coefcient
numbers correspond as shown below.
SCALE1 No. 1 parameter
SCALE2 No. 2 parameter
SCALE3 No. 3 parameter
SCALE4 No. 4 parameter
3
Touch the A key.
Touch when you wish
to revert the setting to
the default value.
Touch when you wish
to cancel the setting.
4
Set correction coefcient A with the
numeric keypad and then touch the EN-
TER key.
1
2
Settable range: -999.999 to 999.999
If you make a mistake, touch the C key to
reenter the value.
Touching ENTER while nothing is being dis-
played (while touching the C key) will close
the dialog box without changing the setting.
The display will return to the screen shown
in step 3.
5
Error Correction
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