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3. Navigate to and select the desired choice. Press to configure the
settings within that choice.
6.6.2.3. Factory Calibration
Factory Calibration means there is no calibration offset. Selecting Factory
Calibration disables the Single Point Calibration and Two Point Calibration
options. There are no settings to configure for Factory Calibration.
6.6.2.4. Single Point Calibration
The Single Point Calibration screen shows the current value by which the process
input (PV) is offset. This offset value will be the maintained throughout the
controller’s input range. For example:
1. The controller displayed an oven temperature of 100 degrees with the
Calibration Offset set to OFF.
2. But an independent measurement of oven temperature reveal an actual
temperature of 110 degrees inside the oven
3. Use and to enter a Calibration Offset of 10 degrees. This Calibration
Offset increases the displayed temperature by 10 degrees to match the actual
temperature measured in the oven.
4. Press .
6.6.2.5. Two Point Calibration
Two Point Calibration provides a way to choose two temperature points with two
different offsets. The actual offset at any given temperature will be interpolated
between the chosen points and extrapolated above and below the chosen points.
For example:
• Given the settings of:
o Calibration Low Temp = 100 °C
o Calibration Low Offset = 1 °C
o Calibration High Temp = 200 °C
o Calibration High Offset = 2 °C
• The offset at an oven temperature of 0 °C would be 0 °C, the offset at 150 °C
would be 1.5 °C, and the offset at 300 °C would be 3 °C.
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