Calibration routine - Githubissues

PaxInstruments / t400-firmware

Firmware for the Pax Instruments T400 temperature datalogger

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Calibration routine #54

Open charlespax opened 10 years ago

charlespax commented 10 years ago

Goal: The T400 can enter a mode where it can calibrate itself. This is perhaps with external hardware giving a specific reference voltage. Maybe the MCP3424 can be calibrated by shorting each differential pair.

charlespax commented 9 years ago

MCP9800 calibration https://github.com/PaxInstruments/t400-firmware/issues/15
MCP3424 calibration https://github.com/PaxInstruments/t400-firmware/issues/14
Store calibration on EEPROM https://github.com/PaxInstruments/t400-firmware/issues/16
Read calibration from SD https://github.com/PaxInstruments/t400-firmware/issues/35

charlespax commented 9 years ago

"Do you have provision for aging of the thermocouples? I use type K tc's at 1200C and they definitely loose umph with age at these temperatures. A method to provide a user adjustable offset for each tc would be a requirement in my book." - EEVblog user urlkrueger

charlespax commented 9 years ago

Beyond the scope of the minimum viable product. Moving to Firmware version :-)