Graupner GmbH & Co. KG MC-20 用户手册

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页码 324
16
General operating notices
  General operating notices
Transmitter
  Transmitter power supply
The
mc-20
 HoTT transmitter is equipped with 
a high-capacity, rechargeable LiIo 1s6p/6000 
3.7V TX battery (order no. 33000.1) as standard 
equipment. (changes reserved) However, the 
standard built-in battery is not charged upon 
delivery of the transmitter.
When the transmitter is used, its battery voltage 
should be monitored by way of the indicators provided 
in the LCD display. If the voltage level preset in the 
"Battery warning" line of the »General basic settings«
menu, page 260, (default setting 3.60 V) is underrun, 
an acoustic signal will be sounded and a warning 
message will appear in the display. 
#01
0:00h
Stoppuhr
Flugzeit
K78
0:00.0
3.5V
0:00.0
0
0
0
0
0:00h
M
V
Batt must 
be re-
charged!!
No later than now, operation must be terminated so 
the battery can be charged again. 
Note:
Be sure the correct battery type is set in the »General
basic settings
« menu, page 260! 
The standard setting for this is "Lith.".
 Charge the transmitter battery with the plug-in 
charger.
The transmitter's rechargeable LiIo battery can be 
charged by way of the charger socket located behind 
a cover on the left, front side of the transmitter  – as 
viewed from the front –  with the included plug-in 
charger (order no. 32032.4).
Depending on the state of discharge, the included 
plug-in charger (4.2 V/500 mA) requires up to about 
15 hours to fully recharge the transmitter battery.
Never use plug-in chargers from other manufacturers 
or chargers intended for other battery types. Charger 
output voltage which is too high or possibly even 
different plug polarity, see further below, can cause 
immense damage. We recommend that this plug-in 
charger be appropriately labeled.
Also observe the safety notices provided on pages 
4 … 7.
The transmitter must be switched "OFF" during 
the entire charging procedure. Never switch on the 
transmitter when it is connected to the charger. Even 
a brief interruption to charging can cause charging 
voltage to rise to a level that will immediately damage 
the transmitter with over-voltage. Also for this reason, 
be sure all connectors are always plugged in securely 
and have good contact. 
  Opening the transmitter housing
Switch off the transmitter before opening it (power 
switch to »OFF«). Push both housing base latches in 
the opposite the direction of the arrow marks, toward 
the inside, to their limits. Now tilt the transmitter 
somewhat to the rear so the housing base can fl ip 
open and can be unhooked. Close the transmitter's 
housing base by fi rst hooking it to the underside, fl ip 
the base closed then push both latches toward the 
outside. When closing the base, pay attention that no 
cables are pinched.
Notes:
Make no modifi cations of any kind to the 
circuit boards as this will void the guarantee 
as well as the unit's offi cial permit.
Be sure not to touch the circuit boards with 
any metallic objects. Do not touch contacts 
with your fi ngers.
Before performing any tasks inside the 
transmitter, disconnect the transmitter's battery 
(see next page) to avoid potential short circuit 
damage to the transmitter's circuit boards.