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What firmware changes have taken place on the Maretron FPM100? (2018-4-27)

  • In tank mode, re-enable operation range checking at 4mA (<1mA report N/A, 1mA-4mA report 0%, 4mA-20mA report 0-100%, >20mA report 100%).
  • Change maximum operating range while operating in pressure mode to 1mA - 24mA (3681). FPM100 will report actual pressure between 4mA – 20 mA. Report minimum pressure between 1mA – 4mA. Report maximum pressure between 20mA – 24mA. Report Out-Of-Range below 1mA or above 24mA  
  • Always report data between 0-100% while operating in tank mode without sensor error detection (3681). FPM100 will report actual level between 4mA – 20 mA. Report 0% below 4mA. Report 100% above 20mA. (2014-10-31)


  • Added support for real-time display of current readings during calibration

1.0.1 (2011-11-03)

  • Initial Release


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