User manual

16
General operating notices
General operating notices
mc-16 HoTT and mc-20 HoTT transmitters
Transmitter power supply
mc-16 HoTT and mc-20 HoTT transmitters are
fitted as standard with rechargeable Lithium-Ion bat-
teries differing in capacity. (Change 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 battery voltage drops below
the adjustable voltage setting (set via item “Batterie
warning” in the “Basic Settings” menu, page 272,),
default value 3,60 V, an audible warning signal will
sound and the message window shown below will ap-
pear in the screen
#01
0:22h
Stp
0 00
0
0V
3.5V
x
T
Batt. must
be re-
charged!!
No later than now, operation must be terminated so
the battery can be charged again.
Notice:
Be sure that the correct battery type is set in the
“Basic Settings” menu, page 272! “Lith” must be
set as standard.
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), see page 22.
Charging the transmitter battery using the plug-
type charger
With the plug-type charger
(4.2 V / 500 mA) included
in the set the charge time
for the transmitter bat-
tery is up to about fifteen
hours, depending on
the pack’s initial state of
charge.
Never use any other type or make of plug-type charg-
er, nor a charger designed for other types of battery.
There is a risk of excessive output voltage and incor-
rect connector polarity (see below), either of which
can result in very serious damage. We recommend
that you label the standard charger to avoid confu-
sion. Please read the Safety Notes on pages 8 …
9.
The transmitter must be switched “OFF” during the
entire charging procedure. Never switch on the trans-
mitter 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.
Charging the transmitter battery via the USB
socket
The transmitter is supplied fitted with a genuine
Graupner/SJ transmitter battery with integral pro-
tective circuit, Order No. 33000.1, which can also
be charged via the USB port of the
mc-16 HoTT
and mc-20 HoTT transmitter at the usual current
available at USB ports; see “mini-USB socket” on
page 25.
C A U T I O N: charging a battery without integral
protective circuit via the USB socket incurs a serious
risk of fire!
Charging with automatic chargers
To achieve quicker recharging of the single cell LiIo
battery, Graupner automatic chargers can also be
used. The table below shows a selection of these
chargers.
Recommended chargers (accessory)
Order
No. Designation
Input voltage 220 V Input voltage 12 V
suitable for
battery types
integr. balancer NiCd NiMH LiPo/LiIo lead battery
6411
Ultramat 8 x x x x x
6463
Ultramat 12 plus x x x x x x
6464
Ultramat 14 plus x x x x x x x
6466
Ultra Trio plus 14 x x x x x x x
6468
Ultramat 16S x x x x x x x
6469
Ultra Trio Plus 16 x x x x x x
6470
Ultramat 18 x x x x x x x
6475
Ultra Duo Plus 45 x x x x x x x
6478
Ultra Duo Plus 60 x x x x x x x
6480
Ultra Duo Plus 80 x x x x x x x
Charger cable, order no. 3022 is additionally needed for the trans-
mitter and charger cable, order no. 3021 is additionally needed for
the receiver.
Other charger units and details about the listed chargers can be
found in the Graupner RC main catalog or in Internet at
www.graupner.de.
The charger socket is equipped standard with a diode
to protect against reversed polarity. Original Graupner
automatic chargers also detect battery voltage polar-
ity.
Observe the configuration notices for the charger
used.