- --from the normal gauge operating mode, hold the MODE button down for three seconds;
--the display branches to the top menu selection;
--using the UP and DOWN arrows, scroll to the EDIT MENU choice; hold the MODE button down for three seconds;
--the display branches to the EDIT menu selection;
--using the UP and DOWN arrows, scroll to the SYSTEM INFO choice; hold the MODE button down for three seconds;
--the display branches to the SYSTEM INFO menu;
--using the UP and DOWN arrows, scroll to the SOFTWARE choice; hold the MODE button down for three seconds;
----the gauge displays the revision and date of the firmware.
To revert to normal operation, push the MENU button briefly three times.
When performing this procedure on a gauge I have (an earlier version), the displays shows:
PGFT47N
REV A
4/27/2011