Graupner GmbH & Co. KG MC-20 用户手册

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7
Safety notices
transmitter unit. This is necessary for compliance 
with diverse regulations like FCC, ETSI, CE etc. 
Follow the respective instructions provided for this 
with the transmitter and receiver.
Prior to every fl ight, perform a complete functional 
test, range test and execute a complete simulated 
fl ight in order to exclude the possibility of system 
faults or problems with the model's programming.
Never program the transmitter or receiver while 
the model is being operated. 
Care and maintenance
Never clean the housing, antenna, etc. with cleaning 
agents, gasoline, water or similar means. Use only a 
dry, soft cloth.
Components and accessories
As manufacturer of this equipment Graupner GmbH & 
Co. KG recommends only components and accessories 
which have been tested and approved by Graupner
for their suitability, functionality and safety. If this 
recommendation is followed, Graupner accepts 
responsibility for the product. 
Graupner cannot accept any responsibility for 
the parts or accessories of other manufacturers 
which have not been approved and Graupner 
cannot evaluate every individual product made by 
other companies to assess if they are safe to use.
Liability exclusion / damage compensation
This manual serves only as a source of information 
and can be changed without prior notifi cation. 
Graupner accepts no responsibility or liability for 
errors or inaccuracies which may be contained in this 
manual.
Graupner cannot monitor compliance with the 
assembly instructions, the operating instructions or 
the conditions and methods under which remote 
control components are installed, operated, utilized 
or maintained. Therefore Graupner accepts no form 
  Safety notices and handling regulations for Lithium-Ion 
(LiIo) and Lithium-Polymer (LiPo) batteries 
of liability for loss, damage or costs consequential 
to incorrect usage or operation or which can be 
attributed to same.
Unless otherwise prescribed by law, the obligation 
of Graupner to provide damage compensation, 
regardless of legal grounds, is limited to the invoice 
value of the quantity of Graupner goods contributing 
directly to the damage-inducing event. This does not 
apply if Graupner is found to be subject to unlimited 
liability pursuant to binding legal stipulations with 
respect to intent or gross negligence. As applicable 
for all highly technical products, observance of the 
following safety notices and handling instructions is 
essential for a long service life, fault-free operation, 
and harmless utilization of lithium/polymer batteries.
These instructions are to be safeguarded. If the unit is 
transferred to another user, these instructions should 
certainly be passed along to the new user.
General notices
LiIo-/LiPo batteries require particularly attentive 
handling. This applies to charging, discharging as 
well as for storage and other handling. Adherence 
to the following special specifi cations is necessary:
Incorrect handling can lead to explosions, fi re, 
smoke and poisoning hazards. Furthermore, 
disregard for instructions and warnings can lead to 
performance losses and other defects.
The battery's capacity is reduced by every charge/
discharge cycle. Storing the battery at temperatures 
which are too high or too low can also lead to a 
gradual reduction in capacity. In model operation, 
battery capacity drops to about 50 … 80 % of new 
battery capacity after about 50 charge/discharge 
cycles – even though all charge/discharge rules are 
followed. This is due in part to the high discharge 
currents and inductive currents caused by motors.
Battery packs may only be connected in series or 
parallel in exceptional cases as cell capacities and 
charged state can differ too greatly. This is why the 
battery packs we deliver are selected. 
Special notices for charging LiIo-/LiPo batteries 
from 
Graupner
Since
Graupner GmbH & Co. KG cannot supervise 
the correct charging and discharging of cells, 
the entire guarantee is void in cases of improper 
charging or discharging. 
Never leave batteries being charged unattended.
Only approved chargers with appropriate charging 
cables may be used for charging LiIo-/LiPo 
batteries. Any manipulation to the charger or 
charger cables can lead to severe damage. 
The maximum charging capacity must be limited 
to 1.05 times the battery's capacity.
Example: 700 mAh battery = 735 mAh max. 
charging capacity
Use only the outlet-charger included with the set 
or a specially designed charger/discharger from 
Graupner to charge and discharge LiIo-/LiPo 
batteries, refer to page 17 or www.graupner.de.
Ensure the settings for the number of cells or for 
fi nal charging voltage and fi nal discharge voltage 
are correct. Be sure to observe the operating 
instructions for your charger/discharger.
Other handling notices
The battery to be charged must be placed on a 
non-combustible, heat resistant, non-conducting 
surface during the charging process. Combustible 
or readily ignited objects are to be kept away from 
the charging confi guration. Batteries may only be 
charged under supervision. 
LiIo-/LiPo batteries connected in series within 
a pack may only be charged as a group if the 
voltage of individual cells do not differ by more 
than 0.05 V. The LiIo battery included with the 
set, order no. 33000.1 (changes reserved), is 
equipped with a special safety circuit such that