Count Down Timers; Select Speed/Log Units; Reset Log; Reset Total Log - Standard Horizon MD150 Owner's Manual

5.5.2 Count Down Timers

The countdown timer counts down from an entered
value (minutes) giving audible beeps at 1 minute
intervals from 4 minutes remaining to 1 minute
remaining.
Press the key twice to show the countdown
timer, the last value used is displayed.
To select a new value to count from, press the
key to scroll through 1 to 10.
When the desired value is displayed press the
key to start counting down.
To reset the count down timer, press and hold the
and keys for three seconds while the countdown
timer is displayed. The display will return to the
timer selection.
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5.3 Select Speed/Log Units

Speed and distance units can be selected in the
following order; Knots (nautical miles), KPH
(kilometers) and MPH (statute miles).
When the top section of the display is indicating
speed, press and hold the
seconds. The new unit of measure will be displayed
for three seconds.
Alternately, when the bottom section of the display
is indicating speed, press and hold the
three seconds. The new unit of measure will be
displayed for three seconds.
Note: When changing speed/distance units, the
log totals are re-calculated to show the same

5.7 Reset Log

With the log displayed, press and hold the
keys for 3 seconds.

5.8 Reset Total Log

With the total log displayed, press and hold the
and keys for 15 seconds.
Note: When the total log is reset the trip log and
average speed are reset also.

5.10 Reset Average Speed

With average speed displayed, press and hold the
and
It is possible to display average speed and a log
value at the same time. In this situation the LAST
function to be selected will be reset when the
and keys are held down.

5.11 Backlighting On / Off

Simultaneously press the
the backlight on. Repeat this procedure to turn the
lighting off.
Owner's Manual
distance in the new units.
keys for 3 seconds.
and
key for three
key for
and
keys to turn
MD150 User Manual