AiM MyChron3 XG Log - Manual (Page 63)

In the window’s left part there are three columns: in the first one it is possible to
insert the instrument’s output voltage (i.e. the abscissa values of the calibration
curve), while in the second one it is possible to insert the temperature/pressure
value corresponding to the previous voltage (i.e. the ordinate values of the
calibration curve). These values will be interpolated using a polynomial. In the
third column it is reported the “Curve Error”, i.e. the difference between the
computed curve and the experimental values.
To set how many experimental values you wish to use to create the calibration
curve, please place a check in the column besides the abscissa values.
In the window’s middle part it is reported both the sensor’s calibration curve and
the 5 coefficients (from a
0
to a
4
) of the interpolation polynomial. Please, use
button “Compute Curve” to refresh the calibration curve to apply any changes.
On the right of the calibration curve there are some boxes, where you can insert
the sensor name, the desired measure units and the sensor type (Temperature,
Pressure or Other).
Below these boxes there are some pushbuttons which allow the user to save or
delete a customized sensor.
In the window’s upper right corner you can see some default “custom” sensors. If
you wish to load one, please click twice on the sensor’s name.
Once correctly defined the new sensor, the user may exit Customization sensor
mode, by clicking on the OK pushbutton, and has to set the new sensor on the
desired channel (press button Channels and follow the instructions reported in the
channels paragraph).
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