GRAUPNER mz-24 Pro Programming Manual page 18

• If a transmitter is turned off during
flight, wait three seconds until the dis-
play screen goes dark, then turn on the
transmitter. Transmitter may freeze if
turned on before the display screen
goes dark, and models may become
uncontrollable.
• To avoid feedback channel malfunc-
tions when operating towed mod-
els, maintain a minimum distance of
approximately 20 inches (50 cm) be-
tween the participating receivers or
their antennas. In this case, use a sat-
ellite receiver.
Checking the Transmitter and Receiver Batteries
When the warning message "Charge the battery!"
appears in the display followed by a warning sound,
immediately cease operation and recharge the trans-
mitter battery.
Use the transmitter battery power display functions to
check the battery charge of both the transmitter and
receiver. Do not wait until the rudder movements are
noticeably slower. Immediately replace dead batter-
ies.
Always follow the manufacturer's charging instruc-
tions. Always fully recharge batteries. Do not leave
batteries unattended while charging. Never attempt to
charge alkaline batteries as they may explode.
Recharge batteries before each use. To prevent
short-circuits, insert the banana plugs into the charger
first, and then insert the charging cable plugs into the
battery charging ports.
18 Installation instructions
Disconnect batteries when not in use.
Never use rechargeable or replaceable batteries with
damaged, defective or different cell types, i.e. do not
mix combinations of old and new cells or cells from
different manufacturers.
Capacity and Operating Time
The recharging process gradually reduces battery
capacity. Check the capacity of power sources every
6 months, and replace any battery with low perfor-
mance.
Additionally, never store batteries at low tempera-
tures; the internal resistance increases while capacity
decreases and the battery's overall ability to discharge
and retain power diminishes.
Only use original Graupner rechargeable batteries.