AOIP CALYS 150, Инструкция по эксплуатации, Страница: 166 / 194

ADVANCED OPERATION
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CALYS 150
C.2 Scaling
The scale correction function performs a conversion between the electrical quantities measured and the physical quantities
converted.
This linearization is used partially to correct errors induced by non-linear sensor/converter systems.
The Set to scale function is used to define up to 10 segments of a straight line, or 10 points, in order to approach a non-
linear response curve as closely as possible and to perform scale corrections for each segment.
The symbol is displayed on the screen in the active window when Set to scale is active.
The Define… menu is used to program up to 10 lines of 2 values: X and Y= f(X).
In measurement: X = The value measured and Y = The value displayed.
In transmission: X = The Setting displayed and Y = The value transmitted.
The lines entered are sorted according to increasing X to set to scale a value X, the unit searches for the 2 lines n and
m=n+1 that enclose it and extrapolates linearly: Y = Yn + (X-Xn) x (Ym-Yn)/(Xm-Xn)
Use the function keys to edit the points:
To Add a line: enter X and Y, then press the function key.
To select a line from the list, use the Up and Down navigation keys.
To cancel a selected line, use the key.
The Format and Units zones are used to select the number of decimal places and the display units.