Logger Firmware

Revision N – Initial Product Release

Revision P – Addressed a known issue with dual-channel (pressure, humidity and dual-temperature) devices.

Revision Q – Added more dual-channel devices to the firmware for compatibility.

Revision B – Adapts MPIII firmware to work with new MPIII hardware.(1)

Revision C – Fixed battery reset issue resulting in lost header information.(1)

Revision D – Addressed an issue in Rev. C with data logger communication modes which can cause a data logger to stop communicating.(1)

Revision E – Addressed an issue in Rev. D that could sometimes create a corrupt header after a battery change.

Revision F – This change is for internal use only and does not require a field upgrade from Rev. E. Mesa Labs does not recommend returning the data logger to the factory for this firmware revision change.

Revision N – Initial Product Release

Revision P – Addressed a known issue with dual-channel (pressure, humidity and dual-temperature) devices.

Revision Q – Added more dual-channel devices to the firmware for compatibility.

(1) NOTE: Please note that if these firmware revisions are found in your inventory they should be upgraded using the MPIII Firmware Upgrade Utility or sent to Mesa Laboratories, Inc. to be upgraded.

Revision S – compatible only with DT Pro v1.0

Revision T – compatible only with DT Pro v1.0

Revision 001 – compatible with DT Pro v1.1 and v1.2

Revision 002 – compatible with DT Pro v1.1 and v1.2
Rev. 002 includes new features for low and standard temperature battery management, if used, also requires DT Pro v1.2

Revision 003 – compatible with DT Pro v1.1 and v1.2
Rev. 003 engineering prototype build only used internally at Mesa Labs

Revision 004 – compatible with DT Pro v1.1 and v1.2
Rev. 004 includes multiple updates, including enhancements for large RF networks and various bug fixes (see release notes)

Revision 005 – compatible with DT Pro v1.1 and v1.2
Rev. 005 resolved possible infrared communication issue when performing test logger (see technical note)

Revision B – Initial Product Build

Revision C – For internal use only

Revision D – For internal use only

Revision E – For internal use only

Revision F – Addressed the following two issues:

1. A temperature compensation to the oscillator used for radio transmission and reception has been implemented. This compensation adjusts the operating point of the frequency control circuits inside the radio transceiver to keep the operating frequency close to the frequency associated with the selected channel.

2. Improving the immunity of the MPRF loggers to ambient light, especially light with a high IR content.