reflow-oven-control-sw/doc/source/usage/calibration.rst

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2020-08-11 23:21:24 +02:00
.. _usage_calibration:
Calibration
===========
In order to provide higher measurement accuracy, the PT1000 measurement can be calibrated. The calibration only calibrates the internal :ref:`hw_analog_fe` and not the PT1000 Sensor element itself.
The Sensor element must be conform with the standard PT1000 norms.
Tests have shown, that a calibration is most likely not necessary, because the resolution of the 12 bit analog measurement is far worse than the reistance reading error produced by the :ref:`hw_analog_fe`.
Calibration might only be necessary if no precission reistors in the frontend hardware are used.
Calibration can be performed the following ways:
Command Line Calibration
------------------------
Use the :ref:`command_line` to invoke the :ref:`shell_command_calibrate` command.