GRAUPNER MC-22S, Programming Manual

Page: 82 / 180

82
Timers
Timers in the basic display
M o d e l t i m e 0 : 2 0 h
B a t t . t i m e 4 : 4 5 h
S t w a t c h 0 : 0 0 0 s
F l i g h t t m 0 : 0 0 0 s
T i m e r A l a r m
C L R
t
As standard the basic transmitter display contains
four timers. Hold the rotary control pressed in and
select the appropriate display line so that you can
change the settings for that timer.
“Model time”
This timer displays the total access time of the cur-
rent model memory. If you wish, you can assign an
external switch or transmitter control on the right of
the screen, and this switch is then used to control the
“model timer”. With the
CLR fi eld displayed in inverse
video (black background), give a short press on the
rotary control to reset the display to “0:00h”.
“Battery time”
As an aid to monitoring the transmitter battery, this
operating hours timer records the total time that the
transmitter is switched on. An external switch cannot
be assigned to this function.
This battery timer is automatically reset to “0:00”
when the transmitter detects that the voltage of the
transmitter battery is signifi cantly higher than the last
time it was switched on, e.g. as the result of a char-
ge process, or the installation of a new, freshly char-
ged pack.
With the CLR fi eld displayed in inverse video (black
background), give a short press on the rotary control
to reset the display to “0:00h”.
“Stopwatch” and “Flight timer”
These two timers, which can be set to count up or
down, are located in the right-hand half of the basic
screen display.
Program description: Timers
Select the “Stopwatch” or “Flight timer” line with the
rotary control pressed in:
M o d e l t i m e 0 : 3 3 h
B a t t . t i m e 5 : 0 3 h
S t w a t c h 1 : 3 0 9 0 s
F l i g h t t m 0 : 0 0 0 s
T i m e r A l a r m
S E L S E L S E L
t
s
The stopwatch can be started and stopped using any
available switch. To set the switch, select the switch
symbol fi eld at the bottom edge of the screen. Swit-
ches are assigned as described on page 30.
If the timer has been stopped, pressing CLEAR in the
basic display resets it to the programmed start value;
see below (“Alarm” and “Timer” sections).
The fl ight timer can be started using a switch assig-
ned to the function. Once the switch is opened again,
the timer can be stopped from the basic display by
pressing
ESC , and, once stopped, can be reset to
the starting value by pressing CLEAR . For this re-
ason it is advisable to use a momentary switch, Order
No.
4160.11 , as the external switch for this applicati-
on. If you select a control switch, please do not forget
to assign it to the appropriate transmitter control in
the »
Control switch « menu, and to set the switching
point along the transmitter control’s travel. For examp-
le, the “timer start” signal usually coincides with the
point at which the electric motor is switched on.
Switching between “count-up” and “count-down”
Count-up timer:
If you assign a switch to any timer, and program it to
start running at the initial value “0:00”, it will count
“up” until max. 999 min. and 59 sec., at which point it
will start again at 0:00.
“Timer” (count-down timer)
Use the left-hand SEL fi eld in the “Timer” column to
set a start time within the range 0 to 180 min. and use
the right-hand
SEL fi eld to set a start time between 0
and 59 sec.
(Pressing CLEAR = “0” or “00” respectively).
Procedure:
1. Select the SEL fi eld using the rotary control,
2. Brief press on the rotary control,
3. Set the pre-set time in the inverse minutes / se-
conds fi eld using the rotary control (not pressed
in),
4. A brief press on the rotary control concludes the
process.
Once you operate the assigned switch, the timers
start from this pre-set initial value and run backwards
(“timer function”). If necessary, reset the timer after it
has been stopped by pressing
CLEAR in the basic
display. When the pre-set time has elapsed, the ti-
mer does not stop; instead it continues running so
that you can read off the over-run time, i.e. the time
elapsed after zero.
Count-down timers are identifi ed in the basic display
by a fl ashing colon (:) between the minutes and se-
conds fi elds.
Model name
#01 0:00h C73
H-J Sandbrunner
10.8V
0:00h
0 0 0 0
St watch
Flighttm
0 00
0 00
:
:
“Alarm” timer
In the “Alarm” column you can defi ne a time within the
range 5 to 90 seconds in 5-second increments. At the
set time before zero you will hear an audible signal,
eliminating the need for the pilot constantly to check
the screen.
(Pressing CLEAR = 0 sec.)