Audiotel International 2-197-869 Manual de instrucciones - Página 7
Navegue en línea o descargue pdf Manual de instrucciones para Sensores de seguridad Audiotel International 2-197-869. Audiotel International 2-197-869 16 páginas. Non-linear junction detector
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SuperBroom Plus TA – Operating Manual
Non-linear junctions can also be formed when two metal
objects are in contact due to complex chemical behaviour at
the junction of the objects.
S
B
H
R
UPER
ROOM
ARMONIC
ADAR
The signal generated by SuperBroom is a spectrally pure
radio signal within the frequency band of 869.4 – 869.65
MHz ( There are 19 frequency channels of which only the
10 optimum channels, selected during SuperBrooms's start
up self-check procedure, are used at any time). Any non-
linear junction within range re-radiates the radio energy at
harmonic frequencies of the incident signal. In this case the
frequencies produced are:
1738.825 – 1739.275 MHz - usually termed the 'second
harmonic'
2608.2375 – 2608.9125 MHz - usually termed the 'third
harmonic'
and so on. A complete frequency plan is given in appendix
C.
The nature of the non-linear junctions within electronic
components is such that the strongest harmonic produced
is usually the second harmonic, with the third harmonic
usually appreciably weaker. Other harmonics are usually
very weak.
In contrast to this the nature of the non-linear junctions
between metal objects are such that the strongest harmonic
produced is usually the third harmonic, with the second
harmonic usually appreciably weaker (but may be roughly
equal in some situations). Other harmonics are usually very
weak.
Spent battery packs should be returned to Audiotel
International Ltd.Do not use the AC Power Lead or AC/DC
Adaptor if:
■ The AC Power Lead cable or its plugs become frayed
or otherwise damaged
■ The AC/DC Adaptor casing is cracked or otherwise
damaged
■ The AC Power Lead or AC/DC Adaptor are exposed to
rain, liquids or excessive moisture
The AC Adaptor should only be used in controlled offi ce
environments with a maximum ambient temperature of 35º
Centigrade and Relative Humidity of 85%.
Do not use the SuperBroom if:
■ The SuperBroom unit is exposed to rain or other
excess moisture
■ The unit has been damaged
■ You suspect the unit requires servicing
You should take the following precautions.
■ Do not point the antenna at a person's eyes or head
■ Do not leave the antenna in close proximity to any
part of the body for prolonged periods.
■ Do not use near infl ammable fl uids or explosives or
in any area where the use of radio communications
equipment is prohibited
■ Do not use in close proximity to any person fi tted with
a heart pacemaker or any other life support system
■ Switch off SuperBroom when not in use, this
minimises exposure to RF energy and prolongs battery
life.
SuperBroom may interfere with operation of some electrical
equipment.
AUDIOTEL INTERNATIONAL Ltd – Issue 3.1 (09/2004 )
3
Setting Up