GRAUPNER mx-20 Hott Programming Manual page 140

Switching between "forwards" and "backwards"
Timer runs forwards (stopwatch function)
Following switch assignment, if the stopwatch shown on
the basic display is started with the initial value of "0:00",
then it will run forwards for max. 180 min and 59 s and
then restart from 0:00.
Timer runs backwards (countdown function)
In the – left – minutes fi eld, select a start time between 0
and 180 min ...
12:34h
Model time
Batt. time 1:23h
Top : Stop
Centr : Flight
SEL
... and in the – right – seconds fi eld, select a start time
between 0 and 59 s (or any combination of these):
Model time 12:34h
Batt. time 1:23h
Top : Stop
Centr : Flight
SEL
Procedure
1. Select the desired input fi eld using the arrow keys
 on the left or right touch pad.
2. Now tap SET in the center of the right touch pad.
3. Make your time selection in the highlighted minutes
or seconds fi eld, using the arrow keys on the right
touch pad.
140 Detail program description - Control adjust
4. Complete your input by tapping the center
5. If you tap the
pad at the same time (CLEAR), this will reset any
settings made back to "0" or "00".
6. After switching back to the basic display (by tapping
the center ESC
times as required), make sure the stopwatch is
stopped and then tap the  or  keys on
the right touch pad (CLEAR) so that the stopwatch
switches over to the "timer" function. Look to the top
right in the following screen image:
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GRAUBELE
180:00
#01
0:00
Timer
0:00h
After the assigned switch is activated, the stopwatch
starts at the initial value set and runs backwards
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("countdown function"). Once the timer reaches zero it
does not stop, but continues to run to enable you to read
180:59
off the time elapsed after it reached 0:00. To make this
0:00
absolutely clear, the timer is shown highlighted.
Timer
"Alarm" timer
The "Alarm" column is accessed by using the arrow
key  on the left or right touch pad to move the marker
frame over the "Timer column to the right. In the
"Alarm" column, you can defi ne a time between 5 and
90 seconds (in 5-second increments) before zero is
reached: at this point an audible signal will be emitted,
which eliminates the need for you to check the screen
continually during the fl ight.
SET key.
 or  keys on the right touch
key on the left touch pad as many
Stop 10:01
Flt 0:00
5.9V HoTT
K78
M 0.0V
Model time 12:34h
Batt. time 1:23h
Top : Stop 0s
Centr : Flight 0s
SEL Alar m
If you tap the  or  keys on the right touch pad
at the same time (CLEAR), this will reset any settings
made back to "0 s".
Audible signal sequence
30 s before zero: Triple beep
Single beep every two seconds
20 s before zero: Double beep
Single beep every two seconds
10 s before zero: Single beep
Single beep every second
5 s before zero: Single, higher-frequency beep
every second
Zero: Extended audible signal and
screen switches to highlighted
display
Resetting timers when stopped
Tapping the  keys on the right touch pad at
the same time (CLEAR) will reset the display of
previously stopped timers on the basic display.
Notes:
• Timers that are running backwards are shown on the
basic display with a fl ashing colon (:) between the
minutes and the seconds fi elds.
• A typical application, "Timer activation via the C1
joystick", can be found on page 252).
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