Audiotel International 2-197-869 Manual de instrucciones - Página 8

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SuperBroom Plus TA – Operating Manual
E
NVIRONMENTAL
CONDITIONS
The Super Broom has been designed to operate within the
following conditions:
Temperature conditions of +5°C to +35°C (The LCD may
slow down at +5°C.)
P
R
OWER
EQUIREMENTS
SuperBroom only operates powered by its internal battery
pack. The external AC/DC Adaptor is used to recharge
the battery only and cannot be used to directly power
SuperBroom.
B
ATTERY
The internal rechargeable Lithium Ion battery pack gives
3-20 hours continuous use (dependent on the power output
setting). The battery will need to be recharged when the front
panel LCD display shows approximately 6.5 V. The battery
is automatically recharged when external power is applied
to the SuperBroom via the external AC/DC Adaptor. Internal
protection circuitry protects the battery. If for any reason
the battery suffers any transient fault such as short-circuit,
overcharging or deep discharge, the pack will shutdown. It
will remain in this state until recharged by connection of the
external AC/DC Adaptor.
If the SuperBroom is left switched on, as the battery power
level falls, the following sequence of events will eventually
occur:
1 SuperBroom enters a reset state, this is indicated by
all 6 LEDs on the left-hand side of the front panel
illuminating.
2 The battery pack protection circuitry will shut down
the battery pack. All signs of life will be absent.
THEORY OF OPERATION - HARMONIC RADAR
This section is intended to explain how SuperBroom
detects electronic devices and why it has two receivers.
Understanding this theory is not essential to operation of
SuperBroom but should help users perform a faster sweep
and be more appreciative of operation.
P
O
RINCIPLE
OF
PERATION
SuperBroom detects electronic Components that are:
Diodes
or Transistors
or Integrated Circuits
These components are used to make electronic devices
(together with other components such as resistors and
capacitors, for example). SuperBroom can detect electronic
devices regardless of whether the device is powered or
operational although this may affect how well it can be
detected from a given distance.
SuperBroom does not react to resistors, capacitors,
transformers, batteries and other components that do not
contain diode- or transistor-like materials.
SuperBroom does not detect metal objects except when
metallic semi-conducting junctions are formed - this is
explained below.
T
N
-
J
HE
ON
LINEAR
UNCTION
Distortion of a signal results in generation of harmonics of
the incident signal. Higher frequencies are produced which
are a whole number multiples (integer multiples) - termed
'harmonics' - of the incident signal.
AUDIOTEL INTERNATIONAL Ltd – Issue 3.1 (09/2004)
21
Theory Of Operation - Harmonic Radar