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Calibrate CJC at next boot (#1398)

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Changes Cold Junction Compensation (Tip Offset / CJC) to be performed during bootup time. (After starting in settings)
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discip
2022-09-10 12:52:57 +02:00
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parent 19a6e169a7
commit c89db78b45
45 changed files with 572 additions and 557 deletions
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11
Documentation/Settings.md
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@@ -125,13 +125,18 @@ On device help text:
Flash temperature reading at idle if tip is hot
### Setting: Calibrate tip CJC
### Setting: Calibrate CJC at next boot
Used to calibrate the ADC+Op-amp offsets for the tip. This calibration must be performed when the tip temperature and the handle temperature are equal. Generally not required unless your device is reading more than 5°C off target.
Note:
If the difference between the target temperature and the measured temperature is less than 5°C, **calibration is NOT required at all**.
This is used to calibrate the offset between ADC and Op-amp of the tip at next boot (Idealy it has to be done at boot, before internal components get warm.). But this setting is ***not permanent!*** It resetes after the calibration is completed (At next boot the checkbox will be unchecked!). If you need to repeat the calibration however, you have to set the checkbox *again*, unplug your device and let it cool down to room/ambient temperature & power it up, idealy while it sits on the desk.
Hence, never repeat the calibration in quick succession!
On device help text:
Tip-temperature Cold Junction Compensation (not needed if Tip is +/- 5°C of display)
Calibrate tip Cold Junction Compensation at the next boot (not required if Delta T is < 5°C)
### Setting: Restore default settings