Selcom Security NR-900S Manual de usuario
PORTABLE
NONLINEAR
JUNCTION
DETECTOR
“
NR-900S
”
User manual
- 2013-
NR-900S Operation Manual
2
CONTENTS
1
Application.………………………………….
5
2
NR-900S complete set……………………….
6
3
Main technical parameters…………................
7
4
Function ………………………
8
5
5.1
5.2
5.3
5.4
Design ……………………………................
Main unit ………………………….…
NR-900S display …………………….…...
Control unit ……………………………....
Control panel………………………………
9
9
10
12
12
6
6.1
6.2
6.3
Accessories ……………………………..…
Imitator ………………………
NR-900S power supply…………………….….
Charger …………………………….
13
13
13
14
7
7.1
7.2
7.3
7.4
7.5
7.6
NR-900S operation
Operation condition and restriction
Getting started
NR-900S workability test
NR-900S safety precaution
Detector operation in 'LISTEN' mode
Detector operation in 'SEARCH' mode
15
15
16
19
20
21
22
8
Packing
23
9
Emergency actions
24
10
Battery charging
25
11
Maintenance ……………………………….
28
12
Shipping and storage …………………
30
13
Certificate of acceptance ……………………..
30
14
Warranty …………………………………..
31
NR-900S Operation Manual
3
This Manual is intended
for explanation
“NR-900S”Non-linear Junction Detector
design & principle of operation
as well as directions for its use.
For proper equipment use,
study this Manual in depth.
NR-900S Operation Manual
4
The Device has an open UHF radiator
of electromagnetic energy.
In active mode it represents
a source of active interference
that could cause certain malfunction
of radio-electronic equipment
located in close proximity
It is the responsibility of the User
to comply with the corresponding
Radio Communication Regulations
of the country
where ‘NR-900S’ NLJD is being used
NR-900S Operation Manual
5
1. APPLICATION
NR-900S Non-linear Junction Detector (fig. 1) is intended for
searching concealed eavesdropping devices as well as other
electronic items that contain semi-conductor elements.
NR-900S typical targets:
Radio-mikes
Microphone amplifiers
Wired mikes
Devices with IR or ultrasonic data
& control channels
Video & audio recorders
Electronic timers, actuating devices
of improvised explosive devices
(IED) and etc.
NR-900S can detect typical targets in every operational mode:
active, stand-by or even switched-off.
NR-900S ensures comprehensive searching capabilities and reliable
localization of ‘bugs’ in fabric constructions, furniture and various
office or home items.
NR-900S provides its operator with an opportunity to discriminate
between industrial electronic elements and metal-to-metal contacts,
so called ‘corrosion diodes’.
Fig. 1 NR-900S
NR-900S Operation Manual
6
2. NR-900S COMPLETE SET (fig. 2) Table 1
1
NR-900S main unit with “Pistol-grip” and control unit
1
2
Carry bag
1
3
Headphones
1
4
Car power adapter
1
5
Soshine SC-S1 battery charger
1
6
AC power adapter
1
7
Target imitator (test unit)
1
8
Soshine 18650 rechargeable cells
4
-
Operation manual (not shown)
1
8
8
Fig. 2 –NR-900S
complete set
1
2
3
4
5
5
6
5
7
7
NR-900S Operation Manual
7
3. MAIN TECHNICAL PARAMETERS
Target detection range
Standard imitator - test unit
(maximum probing signal output &
maximum receiver sensitivity
not less 1 m
Probing signal level -max
-mid
-min
0 dB
-6 dB
-12 dB
Receiver input signal attenuation
10 dB, 20 dB, 30 dB, 40 dB
Received signal level indication -visual
-audio
LED display
Headphones
Power supply
2 x ‘Soshine’ 18650 Li-ion
rechargeable cells
2800mAh, 3.7V
Operational condition:
Operating temperature
Storage and shipping temperature
Relative humidity (under +25°С)
+5°С … +40°С
Minus 20С … +50С
93±3 %
Continuous operation time with two
sets of fully charged cells
-Searchnig mode
-Listening mode
not less 8 h
not less 1 h
Weight
Device in a ready for operation state
Main unit
‘Pistol-grip’ control unit
Complete set in a standard packing
1.4 kg
1.0 kg
0.4 kg.
7.5 kg
NR-900S Operation Manual
8
4. FUNCTION
NR-900S represents a portable tool that consists of antenna system,
transmitter and two receivers adjusted for double and triple
frequency of the transmitter’s signal.
Two operational modes are available: SEARCH and LISTEN.
In a SEARCH mode the probing signal is converted into a poly-
harmonic one on the radiated nonlinear elements (semi-conductive
items or corroded metal-oxide-metal junction) and retransmitted,
better say –scattered into ambient space.
Retransmitted 2nd & 3rd harmonics of the probing signal are received
and processed by receivers. Signals strength is indicated by LED
bar-graph display: scales 2and 3accordingly. Moreover, it is
reproduced via headphones in the form of interrupted beep-beep
audio signal. The audio signal volume is proportional to the received
harmonic signal level.
The receiver inputs switching as well as headphones volume control
is available from the device control panel.
NR-900S has three output levels for radiated probing signal with 6
dB step and four levels of the receiver input signal attenuation each
of 10 dB. The probing signal output level and receiver input signals
attenuation can be switched over by Control panel buttons. This info
is confirmed by LED display.
An auxiliary LISTEN mode is intended for the 2nd & 3rd harmonic
signals investigation for possible modulation imposed by internal
processes in some active electronic circuits irradiated by the probing
signal generated by NR-900S transmitter. At that, ‘active’ means the
circuit is in an operational mode carrying out its particular function.
Moreover, this can be done against the existing interference
environment.
NR-900S Operation Manual
9
5. DESIGN
5.1 MAIN UNIT
NR-900S main unit (see fig.3) represents a mono-block that consists
of antenna system, electronic unit (transmitter with two receivers)
and LED display - indication panel (pos. 1).
A dedicated quick release plate (pos. 2) is placed on a back side of
the Main unit. It is supplied with pin connector (pos. 3) and intended
for easy coupling the Control unit.
NR-900S antenna system consists of two coaxial spiral directional
antennas (transmitting and receiving) attached to the 250 mm
reflector. Main lobes of antennas radiation pattern are oriented along
their geometrical axis.
NR-900S is made in dust- and waterproof version and has robust
enclosure, ensuring safe operation within wide range of
temperatures.
1
2
3
Fig. 3 NR-900S
Main unit.
1. NR-900S display
2. Quick release
base plate
with rotary latch
3. Pin connector
NR-900S Operation Manual
10
5.2 NR-900S DISPLAY (fig. 4)
1. PWR - probing signal level 3 red LEDs indication. Each LED
corresponds to 6 dB output level increase.
If the LEDs are dead - the transmitter is off.).
2. 2nd harmonic bar-graph indicator (16 red LEDs).
3. 3rd harmonic bar-graph indicator (16 green LEDs).
NOTE: Both signal level bar-graph displays
are divided to 4 equal sections with 4 LEDs in each.
Every LED corresponds to 2.5 dB,
Thus every section matches to 10 dB
of a probing signal level harmonic - 2-nd or 3-rd.
4. ATT -received signal attenuation (4 blue LEDs). Each LED
corresponds to 10 dB attenuation.
When all four LEDs are on - the sensitivity is maximal.
5. SOUND –headphone commutation proof: 2or 3LEDs
corresponds to the 2nd or 3rd harmonics audio signal.
6. Operation mode indication: SEARCH, confirmed by blue
LED with pictogram, or LISTEN (the LED is dead).
SOUND
PWR
A T T
2
3
Fig. 4 –NR-900S display
1
2
3
4
6
5
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