GRAUPNER MX-16S, Programming Manual

Page: 5 / 116

5
Frequent charging, and / or the use of maintenance pro-
grams, tends to cause a gradual reduction in battery ca-
pacity. We recommend that you check the capacity of all
your rechargeable batteries at least every six months,
and replace them if their performance has fallen off sig-
nifi cantly.
Use only genuine
GRAUPNER rechargeable batteries!
Suppressing electric motors
All conventional electric motors produce sparks between
commutator and brushes to a greater or lesser extent,
depending on the motor type; the sparking generates
serious interference to the radio control system.
If an RC system is to work correctly, it is therefore im-
portant to suppress the electric motors, and in electric-
powered models it is essential that every motor should
be effectively suppressed. Suppressor fi lters reliably eli-
minate such interference, and should always be fi tted
where possible.
Please read the notes and recommendations supplied
by the motor manufacturer.
Refer to the main
GRAUPNER FS catalogue for more
information on suppressor fi lters.
Servo suppressor fi lter for extension leads
Order No. 1040
Servo suppressor fi lters are required if you are obliged
to use long servo extension leads, as they eliminate the
danger of de-tuning the receiver. The fi lter is connected
directly to the receiver input. In very diffi cult cases a se-
cond fi lter can be used, positioned close to the servo.
Using electronic speed controllers
The basic rule is that the electronic speed controller
must be chosen to suit the size of the electric motor it is
required to control.
There is always a danger of overloading and possibly
damaging the speed controller, but you can avoid this by
ensuring that the controller’s current-handling capacity is
at least half the motor’s maximum stall current.
Particular care is called for if you are using a “hot” (i.e.
upgrade) motor, as any low-turn motor (small number of
turns on the winding) can draw many times its nominal
current when stalled, and the high current will wreck the
speed controller.
Electrical ignition systems
Ignition systems for internal combustion engines can
also produce interference which has an adverse effect
on the working of the radio control system.
Electrical ignition systems should always be powered by
a separate battery – not the receiver battery.
Be sure to use effectively suppressed spark plugs and
plug caps, and shielded ignition leads.
Keep the receiving system an adequate distance away
from the ignition system.
Static charges
Lightning causes magnetic shock waves which can in-
terfere with the operation of a radio control transmitter
even if the thunderstorm actually occurs several kilome-
tres away.
Cease fl ying operations immediately if you notice an
electrical storm approaching. Static charges through
the transmitter aerial can be life-threatening!
Caution
Radio control systems may only be operated on the fre-
quency bands and spot frequencies approved in each
EU country. You will fi nd information on frequencies in
the section entitled “Approved operating frequencies” on
page 113. It is prohibited to operate radio control sys-
tems on any other frequency, and such misuse will be
punished by the relevant authorities.
Care and maintenance
Don’t use cleaning agents, petrol, water or other sol-
vents to clean this equipment. If the case, the aerial etc.
gets dirty, simply wipe the surfaces clean with a soft dry
cloth.
Components and accessories
As manufacturers, the company of GRAUPNER GmbH
& Co. KG recommends the exclusive use of compo-
nents and accessories which have been tested by
GRAUPNER and approved for their capability, function
and safety. If you observe this rule, GRAUPNER accepts
responsibility for the product.
GRAUPNER cannot accept liability for non-approved
parts or accessories made by other manufacturers.
It is not possible for
GRAUPNER to assess every in-
dividual item manufacture red by other producers,
so we are unable to state whether such parts can be
used without incurring a safety risk.
Liability exclusion / Compensation
We at GRAUPNER are unable to ensure that you ob-
serve the operating instructions, and are not in a positi-
on to infl uence the way you install, operate and maintain
the radio control system components. For this reason we
are obliged to refute all liability for loss, damage or costs
which are incurred due to the incompetent or incorrect
use and operation of our products, or which are connec-
ted with such operation in any way.
Unless otherwise prescribed by law, the obligation of the
GRAUPNER company to pay compensation is limited
to the invoice value of that quantity of GRAUPNER pro-
ducts which was immediately and directly involved in the
event in which the damage occurred. This does not ap-
ply if
GRAUPNER is found to be subject to unlimited lia-
bility according to binding legal regulation on account of
deliberate or gross negligence.
Safety notes