Instructions

10. Safety Devices

The quadrocopter “Q” has a range of safety devices in the transmitter and ight model which protect the

model from damage and/or should reduce possible damage to a minimum. The protection mechanisms are

identied by LED indicators (ight model) or an acoustic warning signal (transmitter).

a) Transmitter

The battery condition is continually inspected while the transmitter is in operation. If the voltage level of the batteries

drops below a certain value, the transmitter will signal this with an intermittent warning sound and permanent ash-

ing of the LED at the transmitter (gure 3, item 2). In this case, stop ying at once and replace the batteries of the

transmitter.

b) Model

The LEDs in the quadrocopter (in the landing struts) show if the transmitter is "bound" to the model and reception of

the control signal is proper. This is displayed by permanently lit LEDs. When the front LEDs ash, the quadrocopter

does not correctly receive the transmitter signal. In this case, "binding" must be performed again.

The quadrocopter constantly monitors the voltage of the integrated ight battery. Should this fall below a critical level

during a particular period, this will be indicated by the ashing front LEDs.

If the voltage undercut is permanently below a specic value, an emergency landing is initiated after a brief time and

the motors are switched off.

If the undervoltage is displayed at the quadrocopter by ashing of the front LEDs, only approx. 20 to 30

seconds of ight time remain to independently return the model to the starting point and land it.

If a certain voltage level of the ight battery is reached, the motor control will be switched off by the transmit-

ter and automatic landing is initiated. This process cannot be inuenced by the transmitter anymore.

If the model is above a body of water, tree, house, street, persons, animals, etc. at the time and/or if the

model is ying more than 1 metre above ground, the model may be damaged or lost and there may be

property damage and injury to persons/animals nearby.