Operation

The OAT / VOLTS button (1) controls the upper display and changes among OAT ºF, OAT ºC or E- Voltage (EMF)

The SEL button (2) selects what is to be displayed in the lower part of the display, and the CTL button (3) controls the timers.

Pressing SEL sequentially selects to display Local Time, UT , Flight Time, Elapsed Time, and back to Local Time. In the left segment of the lower display LT, UT, FT or ET will show underlined indicating what it's displayed in the right segment.

FT starts counting when a valid groundspeed was first greater than 30 knots (typically during takeoff) and it will stops when that speed come down to less than 30 knots. ET starts counting when you click on control butoon while ET is selected (ET shows underlined in the left side)

When FT is being displaying (FT shows underlined in the left side) clicking twice the CTL button resets Flight Time, FT, back to zero. One more click will start it again. The CTL button also stops, resets and starts again Elapsed Time when clicked sequentially.

Flight Time and Elapsed Time counts up to 59 minutes, 59 seconds, and then switches to hours and minutes.