Security; General Safety Guidelines - AEG Si 150 Operation And Safety Notes

Introduction
buzzing tone sounds. The red LED-display
lights up and P-1is indicated on the LED-display.
Overheating protection:
If the temperature inside the device is over 60 °C,
a beep sounds, the red LED-display
A-2 is indicated in the LED-display
If the temperature inside the device is over 68 °C,
a buzzing tone sounds, the red LED-display
shines, and OFF is indicated in the LED display
The voltage converter stops the converting, and
the external device is switched off.
If the temperature sinks below 50 °C, press the
button ON / OFF / MODE
to re-start the voltage converter again
Overload protection:
If the load is above 160 W (+ / – 10 W), a beep tone
sounds, the red LED-display
is indicated in the LED-display.
If the load is above 180 W (+ / – 10 W), a buzzing
tone sounds, the red LED-display
indicated in the LED-display
The voltage converter stops converting and the
external device is switched off.
Technology
The transformation of the direct current with a
voltage of 12 V into alternating current with a
voltage of 230 V follows place in two stages.
Stage 1:
The device increases the incoming direct current
to a voltage of 300 V.
Stage 2:
This voltage is then converted into alternating
current with a voltage of 230 V and a frequency
of 50 Hz per second.
For this process a kind of transistor is used, which
consists of a highly integrated chip named
MOSFET (metal oxide semiconductor field-effect
transistor).
Output voltage, wave shape
The output voltage in this device is reproduced
as a modified sine wave. This has a gradated form,
18 GB
6
shines, and
6
.
2
6
2
for approx. 3 seconds
1
lights up and A-1
6
and P-1 is
6
.
2
which shows nearly exactly the same characteristics
like a pure sine wave. This modified sine wave is
recognized by most modern external devices
with a voltage of 230 V. Power supply systems in
electronic components belong to it, transformers
and / or small motors. The modified sine wave
produced by this voltage converter uses an
effective voltage of 230 V. Most digital and similar
voltmeters cannot read the effective voltage and
show a value, which is around 20 to 30 V below
.
the actual value of the output voltage. In order
to obtain an exact measurement result, please
use a measuring instrument suitable for the
measurement of the effective voltage.
WARNING!
Some external devices, particularly radios and / or
other audio and rechargeable devices can damage
the voltage converter and / or the attached
devices.
Examine whether the external equipment attached
to the voltage converter "hums", warms up
strongly or heats up excessively during the first
few minutes. In this case separate the external
devices and all cables immediately.
This means in fact that the devices are not
compatible and cannot be used together. Should
something be unclear you, refer to the specialist
dealers of your external device.
This problem does not arise with modern and / or
high-quality devices, since these are able to
recognise and process modified sine waves.
Soft starting technology
The voltage converter is equipped with soft
starting technology, which contributes to the
fact that the voltage inversion takes place in
stages. In this way devices can be used, which
need a higher starter current. By increase of
the output voltage in stages, a damage of the
voltage inverter, the 12-V-input socket and the
attached devices is prevented.

Security

General safety guidelines