Local Microwave Protective Detectors
“FMW-3”
Description Manual & Service Instruction
4372-43071246-004 ТО
Conformance certificate
#РОСС RU.OC03.B00818
.
2003
CONTENTS
1. Introduction ................................................. ........................... 3
2. Purpose ................................................................................... 3
3. Specifications ............................................... .......................... 4
4. Detector Components ................................................... ......... 6
5. Detector Structure & Operation............................ .................. 8
5.1. Detector Principle of Operation......... .................................. 8
6. Detector Construction.................... ......................................... 10
7. Safety Measures……………………………...…………........17
8. Mounting Procedure.................................. ............................. 17
8.1. Requirements for the preparation of the sector and the arrangement of the receiver and the
transmitter ................... ............................................................... 17
8.2. Operating Sequence during the Detector Mounting……… 18
8.3. “FMW-3” and “FMW-3/1” Detectors Mounting................. 20
8.4. . "FMW-3/2" Detector Installation. ..................................... 20
8.5. Procedure of “БПР” Supply Unit Connection ..................... 21
9. Preparation of the Detector for he Operation & Adjustment.. 26
10. Operation of the Detector with the Deflector ....................... 27
11. Check of Technical State.................... .................................. 29
12. Troubleshooting Guide..................... .................................... 30
13. Storage ........................... ...................................................... 31
14. Transportationе................................ ..................................... 31
2
1. INTRIDUCTION
The present description manual and service instruction contains information about the
operation of the local microwave protective detectors “FMW – 3”, “FMW – 3/1”, “FMW - 3/2”
(hereinafter referred to as the detector). In this document there is information required for the
correct operation (use, transportation storage and maintenance) of the detectors and for their
maintenance in the complete availability for operation.
The following abbreviations are used in the present document:
Tx
- transmitter;
Rx
- receiver;
SU
- supply unit;
MK
- mounting kit;
DADS
- data acquisition and display system;
RC
- remote control;
SHF
- superhigh frequency;
LPF
- low-pass filter;
Tx-3, Rx -3
- “FMW-3” detector units;
Tx -3/1, Rx-3/1 - “FMW-3/1” detector units;
Tx -3/2, Rx-3/2 - “FMW-3/2” detector units.
2. PURPOSE
2.1. The purpose of the detector is to protect sectors of slight cross-country and to detect an
intruder moving at his full height or bent.
2.2. The detector is intended for continuous outdoor round-the-clock operation. It keeps
operating at the ambient temperature -40…+50С and relative humidity up to 98% at the
temperature +35С.
3. SPECIFICATIONS
3.1. The detector provides continuous round-the-clock operation, keeps operation and it is
immune to:
precipitations such as rain and snow;
solar radiation;
the influence of wind at the speed of 30 m/sec. maximum;
the height of irregularities no more than + 0,3 m in the sector 3-5m long;
the height of snow blanket up to 0,5m without additional adjustment;
the height of grass up to 0,3 m.
3.2. The length of a detection zone:
“FMW-3” detectors – 10…300 m;
“FMW-3/1”
detectors – 10…100 m;
“FMW-3/2” detectors
- 5…35 m.
3.3. The width of a detection zone of the detectors if the sector length:
“FMW-3”
“FMW-3/1”
“FMW-3/2”
300m – 5m maximum;
100m – 3m maximum;
35m - 1,5m maximum;
200m – 4m maximum;
40m – 2m maximum;
15m - 1m maximum;
100m - 3 m maximum;
20m - 1,5m maximum; 5m - 0,75m maximum;
50m - 2 m maximum;.
3.4. In case of the maximum length the height of a detection zone is:
“FMW-3»
- 1,8 m minimum;
“FMW-3/1”
- 1,6 m minimum;
“FMW-3/2”
- 1,3 m minimum.
3.5. The length of an intermittent detection zone of a bent intruder does not exceed 2 m from
Tx or Rx if the height of Tx and Rx is 0,85m if the sector length is 10m, and it does not exceed 3
3
m if the sector length is 300m. In this case the detection probability is below 0,98, if an intruder
crosses the sector nearer than 10m from Tx (Rx).
3.6. The distance between the axis connecting Tx and Rx and engineering fences is:
“FMW-3” detector - 2,0 m minimum (if the maximum length of a detection zone is 200m);
- 2,5m minimum (if the length of a detection zone is 200…300m);
"FMW-3/1" - 1,5 m minimum;
"FMW-3/2" - 1,0 m minimum.
3.7. The detector generates alarms when an intruder moves in a detection zone at a speed of
0,3…10 m/sec. The minimum detection probability is 0,98.
3.8. The minimum duration of an alarm is 3 sec.
3.9. An alarm is generated by breaking the contacts of an individual point optoelectronic
relay. The maximum switching current is 0,1 A; the maximum voltage is 50 V; the maximum
resistance is 110 Ohm in the closed status.
3.10. The detectors are supplied from "БПР" supply unit or from a DC source within
voltages 9…30 V and pulsation 0,02 V maximum.
3.11. The maximum consumption current from a power source is 0,045 A if voltage is 24
V.
3.12. The detector does not generate alarms if small objects (dimensions don't exceed 0,2
m) move in a detection zone.
3.13. The detector does not generate alarms in case of ultrashort radiation within 150-175
MHz with up to 40 W capacity at the minimum distance 6 m.
3.14. The detector is immune to EMI according to ГОСТ Р 50009-92 (voltage impulses in
supply circuits, breaks of mains supply, electrostatic discharges, electromagnetic fields).
3.15. The detector generates alarms when:
- mains voltage and standby power supply voltage fail simultaneously or supply voltage is
below 9 V;
- Tx or Rx are tampered;
- the detector units fail;
- a receiver is influenced with external electromagnetic field in order to shield it. An alarm
cannot be generated but the requirements of clause 3.7 must be fulfilled;
- 5…30 V voltage is supplied to "ДК" input of the transmitter. Its duration is 1 sec.
minimum.
3.16. The detector generates alarms when the Rx lid is tampered. An alarm is generated by
breaking the circuit "БЛОКИРОВКА" (BLOCKING) which switches current up to 0,2A and
up to 80 V voltage.
3.17. The detector mean lifetime is 8 years.
3.18. Maximum dimensions of the units without a mounting kit are:
"FMW – 3"
- 205*205*80 (Rx-3), (Tx-3);
"FMW - 3/1"
- 205*130*70 (Rx-3/1), (Tx-3/1);
"FMW - 3/2"
- 205*130*70 (Rx-3/2), 110х95х75(Tx-3/2);
"БПР" supply unit - 205*170*105.
3.19. Maximum weight of the units with a mounting kit, kg:
"FMW – 3"
- 1,2 (Rx-3), 1,2 (Tx-3);
"FMW - 3/1"
- 1,0 (Rx-3/1), 1,0 (Tx-3/1);
"FMW - 3/2"
- 1,0 (Rx-3/2), 0,4 (Tx-3/2);
"БПР" supply unit - 2,0.
4. DETECTOR COMPONENTS
The detector delivery kit is given in table 4.1.
Symbols
Name &
Symbolic Notation
Table 4.1
Q-ty
FMW-3
FMW- 3/1
4
FMW- 3/2
Notes
Symbols
ЮКСО 04.01.000
Name &
Symbolic Notation
Receiver "ПРМ-3" (Rx-
Q-ty
FMW-3
FMW- 3/1
Notes
FMW- 3/2
1
3)
ЮКСО 04.02.000
ЮКСО 04.03.000
ЮКСО 04.03.00001
ЮКСО 04.04.000
ЮКСО 04.05.000
ЮКСО 04.10.000
ЮКСО 04.10.200
ЮКСО 04.10.100
ЮКСО 04.10.10001
ЮКСО 10.07.100
ЮКСО 04.15.000
ЮКСО 04.15.100
Transmitter "ПРД-3"
(Tx-3)
Receiver "ПРМ-3/1"
Receiver "ПРМ-3/2"
1
1
1
Transmitter "ПРД-3/1"
Transmitter "ПРД-3/2"
Mounting kit КМЧFMW (MK-FMW)
including:
buckle
bracket
bracket
1
1
1
1
1
2
2
2
2
1
2
bracket
Kit of tools and
accessories КИП-1
including:
braid
key
1
1
1
1
1
1
1
1
1
1
1/6
1
1/8
1/10
ЮКСО 04.16.000
4372-43071246004 Т10
4372-43071246004-01 Т10
4372-43071246004-02 Т10
Container
Package
ЮКСО 04.20.000
Supply unit "БПР"
1
1
1
ЮКСО 03.08.000
Junction box "БарьерКР"
2
2
2
4372-43071246004 ПС
4372-43071246004 ТО
Certificate
1
1
1
Description manual and
service instruction
1
1
1
Package
S8*10
1
Package
1
Delivered
on the
customer
demand
Delivered
on the
customer
demand
5. DETECTOR STRUCTURE & OPERATION
5.1. Detector Principle of Operation.
5.1.1. The detector is a bistatic microwave detector consisting of a receiver, transmitter and a
supply unit. The principle of the detector operation is to generate an electromagnetic field in the
space between a transmitter and a receiver. This field provides a volume detection zone in the
form of a long ellipsoid of rotation. An intruder crossing a detection zone causes changes of the
field. All changes of this field are recorded.
SU provides power supply of Tx and RX with direct current. The current voltage is 15V.
If there is no intruder in the detection zone, the amplitude of radio pulses changes at the Rx
antenna output and at the input of UHF detector only because of the influence of
radiopropagation conditions (rain, snow, movement of grass, etc.).
These changes cause noise interference of the receipt. UHF detector generates the envelope of
radio pulses. The amplifier with inertial automatic gain control (AGC) gains an impulse signal,
detects and smoothes it after detecting with the help of a low-pass filter.
5
Inertial properties of the amplifier are considered as a high-pass filter. Slow changes of the
signal at the amplifier input are analyzed by AGC and the average level of the output voltage is
1,0V.
A person moving in a detection zone causes the modulation of the signal at the input and
therefore at the amplifier output. The modulation depth and the form of the signal depend on the
height and weight of the person, the place where the sector is crossed, the sector relief and the
rate of movement.
The multi-threshold algorithm of operation used in the detector provides the considerable
reduction of the number of alarms caused by the changes of the signal from vegetation, small
animals, precipitations, EMI, etc.
5.1.2. Remote control of the detector operability is carried out by supplying dc voltage
5…30V to "ДК" circuit (remote control circuit) of Tx regarding circuit "-" by the duty operator
for 1 sec. minimum When RC signal is received, Tx stops radiating electromagnetic oscillation
in the direction of Rx. Rx generates an alarm that confirms the operability of the detector to the
operator.
5.1.3. When Tx and Rx antennas are aligned to the maximums of antenna directivity diagrams,
the amplifier is transferred from the mode of automatic gain control with the longer time
constant to the mode with the short time constant of AGC by pressing "AРУ" button ("AGC"
button on Rx. At the same time "fast trimming" of the amplifier is carried out.
The output signal is controlled with the tester on the socket which is marked "КТ".
The detector can operate with any stationary equipment which has a contact input. It is
connected according to the service instruction of the used equipment.
Rx includes a threshold device which generates alarms if supply voltage is below 9V.
Under the Rx lid there are terminals to connect an element of intrusion alarm loop. The
terminals are connected in series mode with the contacts of an individual optoelectronic point
relay and "НЗ"outputs of the braid. At the delivery the terminals are connected with a wire.
There is a button of deadlock (it is marked as "HBC") in Rx in order to prevent tampering of
the lid. This button opens the circuits of the braid marked "БЛ" if the lid is removed.
The detector is supplied from "БПР" supply unit or from another dc voltage supply unit with
the specifications meeting those specified in technical specifications.
Parameters of "БПР" supply unit:
input voltage – 187…242V (alternating);
output voltage – (15+0,6-1)V (direct);
output capacity – two detectors "FMW-3";
standby power supply – (24+6-3)V.
5.1.4. Tx and Rx input circuits are protected against electric pickups (including those caused
by lightning).
6. DETECTOR CONSTRUCTION
6.1. The detector consists of separate units placed in dust-, splash-proof enclosures.
6.2. Rx Construction (Rx-3, Rx-3/1, Rx-3/2 (fig. 6.1)).
The carrier of the unit is base 4. Radio transparent enclosure 6 is glued to the base with sealing
material. On base 4 there is a microstrip antenna and a signal processing plate. In the heel of the
enclosure there are two holes preventing condensed fluid accumulation within the unit. The
access to the controls, adjustment, indication elements and terminals for the connection of the
terminal unit is open when lid 7 is removed. Rx is connected to the DADS with cable 9 (КММ
7*0,12) passed through cable input 8. Rx is mounted on tube 1 using wall bracket 2, flange 5,
ring 10 and tie rod 17. Mounting provides the rotation of the unit in the horizontal plane at angle
+65 minimum; in the vertical plane: upwards - at angle 30 minimum, downward – at angle 45
minimum. Location and marking of the terminals, controls, adjustment and indication elements
located under lid 7, are shown in fig. 6.2.
6
6.3. Tx Construction (Tx-3, Tx-3/1).
Tx construction is the same as the Rx construction. The difference is the following: modulator
is installed on base 4 instead of a processing plate, there is not lid 7,there are not terminals,
controls, adjustment and indication elements, cable КММ4*0,12 is used instead of cable 9 КММ7*0,12.
6.4. Construction of Tx-3/2 (fig.6.3) is the same as the construction of Tx-3/1. But dimensions
and the construction of an attachment point are different. Using hinge 9 the unit can be turned
(tilted) to any side at angle 35° minimum.
6.5. "БПР" Supply Unit Construction (see fig. 6.4).
SU is a dust-, splash-proof unit consisting of body 1 and lid 4 fixed with screws 5 to the body.
Inside the body there is plate 7. Cables are inserted into the unit with pressure inputs 3. Inside
body 1 the cable conductors are cut into the corresponding contacts of headers 8 (their marking is
given on SU plate).
SU construction provides input-output (transit) of the mains trunk cable and standby trunk
cable with diameter up to 11 mm (e.g. ВВГ 2*2,5), input-output of cables such as КММ 7*0,12
from Tx and Rx of the detector "FMW-3" and input-output of an alarm cable going to DADS
(e.g. ТПП 10*2-0,5). SU is mounted on a round support (post) using tie rod 9 (see fig. 6.5).
The circuits of transit connection of the mains and standby trunk cables are given in fig. 8.5.
1-support (tube) – 1 item;
4 – base -1 item;
7- lid-1 item;
10-ring-1 item;
13-washer6- 2items;
16 – washer 6 – 1 item;
19 – washer6 – 1 item;
2 –wall bracket – 1 item;
5 – flange- 1 item;
8- cable input-1 item;
11-nut M6-1 item;
14- bolt M6*16-1 item;
17 – tie rod – 1 item;
20 – nut M6 – 1 item.
Fig.6.1
7
3- curly washer-2 items;
6-enclosure-1 item;
9 – cable – 1 item;
12- elastic washer-6- 2items;
15 - bolt M6*16-1 item;
18 - bolt M6*30 – 1 item;
1 - wire,
2 – indicator "Охрана" ("Protection"),
3 – regulating device of thresholds,
4 - test jack "КТ",
5 – "АРУ" button (AGC button),
6 – "НВС" button (tampering button),
7 – terminals Х1, Х2 to connect an end cap.
Fig. 6.2
8
Beaming
direction
1-support (tube)-1item;
4-washer 6-1item;
7-base-1item;
12-cable-1itemт;
2-tie rod-1item;
5-wall bracket-1item;
8-enclosure-1item;
Fig. 6.3
9
3-bolt М6*12-1item;
6-screw М6*8-1item;
9-hinge-1item;
O
Fig.6.4
1- body - 1 item;
2- wall bracket - 1 item;
3- pressure input – 6 items;
4- lid – 1 item;
5- captive screw M4x16 – 4 items;
6- support(tube) – 1 item;
7- board- 1 item;
8- header- 11 items;
9- tie rod – 1 item;
10- indicator – 1 item;
11- toggle switch – 1 item;
12- safety fuse – 2 item.
Note. Dear user! Manufacturer of “FMW” detectors constantly upgrades their quality and
reliability. That’s why in some lots of detectors one can find design modifications unspecified in
the documents delivered with the detectors. Nevertheless, the main specifications are valid.
7. SAFETY MEASURES
7.1. The current safety standards for the operation with electrical facilities with up to 1000 V
voltage should be observed during mounting, prevention and repair of the detector.
10
7.2. The detector is supplied from a dc source of 9…30 V voltage or from 220 V ac mains
through “БПР” supply unit. Before one starts working it is necessary to learn the arrangement of
alive elements and cables.
7.3 Cables should be laid, terminated and connected to the sockets only when supply voltage
is OFF.
7.4. A protective device in SU should be replaced when supply voltage is OFF.
7.5. The maximum value of SHF energy flux average density at the distance of 1 m from the
detector does not exceed 1 micro W/cm2 that satisfies the security standards for people who don’t
work with SHF.
7.6. It is prohibited to mount and to maintain the detector during lightning storm.
7.7. The detector can be mounted and repaired only by the technicians who learn special
instructions and pass the examination on safety measures.
8. MOUNTING PROCEDURE
8.1. Requirements for the preparation of the sector
and the arrangement of the receiver
and the transmitter.
The sector where Tx and Rx are located should meet the following requirements:
a) the surface of the sector should be planed; the maximum deflection from the plane going
through the bases of Tx and Rx supports should not exceed +0,3m.
If deflections of the sector surface from the plane exceed +0,3m, the specifications of the
detector can worsen. In this case the issue of the use of the detector under these conditions is
defined by the trial operation;
on the sector there must not be moving leaves, bushes, trees and etc. at the distance of 1 m
from the axis connecting Tx and Rx if the length of the sector is
b) up to 50m; 2,5m if the length of the sector is up to 200m; 3,5 m if the length of the sector
is up to 200…300m;
c) the width of the sterile zone should meet clause 3.6 of the present document. The detector
can be mounted if the width of the sterile zone is less. In this case it is possible that on the output
“KT” of Rx (clause 9.2) the signal is weak or it is missing. In this case it is necessary to change
the position of the wall bracket around the support so that Rx or Tx moves around the wall, fence
at 70…100 mm. The units must be oriented to each other. Besides, in some cases the detector
noise immunity can be worse. This can be defined during trial operation;
d) single fixed objects (e.g. posts, trees without lower branches) can be in the detection zone
of the detector at the distance of 1 m minimum from the axis connecting Tx and Rx;
e) the height of the grass must not exceed 0,3m;
f) the height of the snow must not exceed 0,5m;
g) the maximum incline of the sector for:
“FMW-3”, “FMW-3/1” – 450;
“FMW-3/2” – 300.
8.2. Operating Sequence during the Detector Mounting.
Mark the perimeter for the places where the supports are mounted. It is recommended to use
metal or asbestos-cement tube as supports s 50…200mm diameter. Two antennas of adjacent
sectors can be fixed on each support. To exclude zones of intermittent detection of the antennas
the supports should be mounted with overlapping (see fig. 8.1, 8.2.). During the support
mounting it is necessary to carry out extra concreting from above (depth is 200 mm; diameter is
500 mm). If the detector protects the upper level of the fence, the support should be welded or
tied to the fence.
11
Procedure of Tx and Rx Mounting
in the Protected Perimeter
ПРМ1
ПРМ3
Rx
3
Rx 1
ПРМ2
Rx 2
ПРД2
Tx 2
ПРД1
Tx 1
Tx 3
ПРД3
1
Fig.8.1
In the places where there is a lot of snow (over 1 m) the superstructure of the support must be
1500 mm minimum. In those areas where there is little snow the superstructure of the support
must be 1000mm minimum. The dimensions of the detection zone of “FMW-3” detector are
given in fig. 8.3.
Lay the mains cables (such as ТПП) on the fence or in the air. They can be buried.
Mounting Variant of Supports of Two Adjacent Detectors
Rx 1
ПРД2
Tx
2
ПРД1
Tx 1
2…3 м
2…3 м
ПРМ1
Rx 1
ПРМ2
Rx
2
Fig..8.2
12
Dimensions of the Detector Detection Zone
Fig.8.3
8.3. “FMW-3” and “FMW-3/1” Detectors Mounting.
The height of the units mounting above the ground is chosen according to fig.6.1.
Mount wall brackets 2 of Tx and Rx on tubes 1. For that:
- screw tight up to the stop nut 5 with washer 6 on adjuster bolt 7 (see fig. 8.6) and place
the bolt into the corresponding hole on wall bracket 4;
- pass the tail of tie rod 8 through a through hole of bolt 7 according to fig. 8.6;
- press the wall bracket to the tube, pull the running end of the tie rod, remove its slack, put
the tie rod under washer 3, fix with bolt 2;
- fix wall bracket on the tube unscrewing nut 5 (stretching the tie rod).
Put the excess of the tie rod between the wall bracket and the tube or cut off.
The mounting of the wall bracket must provide the orientation of Tx (Rx) to the protected
sector. Mount Tx and Rx on the wall brackets using bolts 14 (fig.6.1).
ATTENTION! The right orientation of Tx and Rx on the wall bracket - drain port must
be downward!
8.4. "FMW-3/2" Detector Installation.
The installation of Rx-3/2 is the same as for "FMW-3" detector (see fig. 6.1).
Tx-3/2 is mounted on the support using tie rod 2, wall bracket 5 and hinge 9 (see fig.6.3). First
mount the wall bracket (mounting procedure is given in item 8.3), then insert the hinge into the
hole of the wall bracket and fix with screw 6.
8.5. Mounting and Connection of "БПР" Supply Unit.
8.5.1. "БПР" Supply Unit Mounting.
As a rule SU is mounted on the same support where Rx (Tx) is mounted. УMounted SU
should provide free access to the Rx lid. Mount SU according to fig. 6.4 and fig. 8.6. The
mounting procedure is the same as one described in item 8.3.
To lighten mounting work SU can be mounted on the support together with Rx (Tx) with one
tie rod. Tie rod 9 (see fig.6.4) from SU MK is not used.
13
14
JB
2
3
«+»
1
JB – junction box
"Barier –КRM"
SU – "БПР" supply unit
JB
«RC»
«-»
Tx
"220V"
2
«ТР2»
3
220V
Fig..8.4
2
«+»
«-»
6
Reserve
24V
«+» «-»
1
«15V»
To DADS
"SU"
3
4 5
"RC"
'NC"» "NC" "SU"
«ТР1»
1
«+»
"reserve"
«-»
SU
Signal cable
Rx
Circuit of Equipment Connection in case of Power Supply of
One "FMW-3" Detector from "БПР" Supply Unit
SU
15
JB3
JB1…JB3 – junction box
"Barier-KRm"
SU – supply unit "БПР"
2
3
«+»
1
JB3
"RC"
«-»
Tx2
220V
«220V»
SU
sector 2
«НЗ» «НЗ»«БЛ»«БЛ» «+» «-»
6 5 4 3 2 1
«15V»
«ТР1» «ТР2» «+» «-»
reserve 24V
«-»
«рез.»
«+»
SU
Rx1
Fig.8.5
Rx2
"NC"
"SU"
"SU"
"NC"
«-»
«+»
JB2
JB2
2
3
5
6
7
8
9
10
5
6
4
1
2
3
4
1
11
3
1
2
Sector 1
Circuit of Equipment Connection in case of Power Supply of Two "FMW-3"
Detectors from "БПР" Supply Unit
9
10
3
4
5
6
7
8
11
9
10
3
4
5
6
7
8
1
11
"RC"
«-»
«+»
Signal cable to
DADS
JB1
1
2
Tx1
JB1
8.5.2. Procedure of “БПР” Supply Unit Connection
ATTENTION! To reduce the level of electromagnetic interference induced on supply
lines it is recommended to mount SU at the distance of 300 m maximum from the place
where the detectors are installed.
The pattern of connection of one (two) “FMW-3” detectors is given on fig.8.4 (fig.8.5). The
marking of cable conductors is given in table 8.1.
Table 8.1
Rx
Tx
Circuit
Purpose
Circuit
Purpose
“+”
Supply
“+”
Supply
voltage of Rx
voltage of Tx
“-“
“-“
9…30V
9…30V
“НЗ” (NC)
Normally
“ДК” (RC)
Remote
closed contacts
control
“НЗ” (NC) of an individual
point relay
“БЛ”
Contacts of
tampering
“БЛ”
button
Unscrew four screws 5 and remove lid 4 (see fig. 6.4).
Cut cable conductors based on the conditions of minimal length of the conductors and the
ease of connection. Power cables with 220 V supply voltage and standby power supply
(maximum diameter of the cable is 11 mm) are connected through the pressure inputs of larger
diameter. Cables of Tx (Rx) and an alarm cable going to DADS (maximum diameter of the cable
is 7mm) are connected through the pressure inputs of smaller diameter.
Connect the cable conductors to the corresponding contacts of the headers. Screw tight four
screws 5 and fix lid 4.
16
1
2
3
4
5
6
7
8
-
tube
bolt М6*16 washer 6
wall bracket nut М6
washer 6
adjuster bolt tie rod
-
1 item;
1 item;
1 item;
1 item;
1 item;
1 item;
1 item;
1 item;
environment change, the voltage controlled by the voltmeter must be within 1,2…4,2 V after
the alignment is over. Disconnect the voltmeter from the socket “KT” of Rx.
Note. If after the alignment the voltage controlled by the voltmeter is over 4,2V (on short
sectors) it is recommended to turn Tx and Rx upwards at a small angle so the voltage does not
exceed 4,2V.
9.3. Adjustment of Rx Operation Thresholds.
Thresholds are adjusted when a person crosses a protected sector uniformly along the whole
length. Cross the sector in the position “at one’s full height” and “having bent”. If the regulator
of the thresholds is turned clockwise the value of the detector thresholds increases and vice
versa. When the detector generates alarms, “OXP” indicator becomes dim for 3…6 sec.
Do check passes along the whole length of the sector; choose the places of passes in cavities,
on eminences checking the generation of alarms on “OXP” indicator becoming dim. If
necessary, adjust the detector thresholds.
ATTENTION! If the detector operation thresholds increase, its sensitivity reduces but at
the same time its noise immunity increases. During the adjustment the optimal values of
operation thresholds should be set.
When the adjustment is over, close the lid of Rx.
9.4. Performance Check of the Detector.
After the adjustment of the detector thresholds carry out the remote performance check.
Supply voltage 5…30V to “ДК” circuit. At the same time the detector must generate alarms.
During the detector service it is recommended to carry out remote performance check every 8
hours.
After the detector adjustment it is recommended to carry out its trial operation for 2…3 days
to reveal and eliminate possible errors of mounting and adjustment.
10. OPERATION OF THE DETECTOR WITH THE DEFLECTOR
10.1. If it is necessary to create breaking of a detection zone “FMW-3”, “FMW-3/1”, “FMW3/2” detectors can be used with the deflector (fig.10.1).
10.2. A metal sheet (its dimensions no less than 1*1m) is used as a deflector. During mounting
the deflector must be adjusted at the angle of azimuth and the angle of the place. It must have
reliable fastening to exclude its vibration when it is windy because it can cause false alarms.
10.3. In case of operation with the deflector the total length of the detection zone does not
exceed 130 m for “FMW-3”; 50 m maximum for “FMW-3/1”; 25m maximum for “FMW-3/2”.
deflector
Tx
Rx
Fig.10.1
10.4. Procedure of Operation
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10.4.1. Mount Tx and Rx according to clause 8.2 and the deflector..
10.4.2. Carry out rough alignment of Tx and Rx antennas in the direction of the deflector.
Open Rx lid and connect the tester using the plait to “KT” socket. Switch on supply voltage.
Changing the position of the deflector and Tx and Rx units obtain the signal on the output of
the amplifier. Carry out exact alignment according to item 9.2.
10.4.3. To define the optimal position of the deflector it is possible to use a laser pointer. Place
a mirror on the deflector (the plane of the mirror must be parallel to the plane of the deflector)
and fix the pointer (keep it) in the centre of Tx unit.
Changing the position of the deflector it is necessary to obtain the beam from the pointer to be
in the centre of Rx antenna.
Switch on supply voltage and carry out the exact alignment of Rx, then the alignment of Tx
according to the methods given in clause 9.2. Adjust the operation thresholds of Rx according to
methods given in clause 9.3.
11. CHECK OF TECHNICAL STATE
11.1. The detector must be served by the technicians after special training and instruction.
11.2. During the service of the detector it is necessary to conduct check and preventive works.
11.2.1. Every month carry out external examination of the detector units and the state of the
sector where Tx and Rx are installed.
It is necessary to check:
- the absence of dust, dirt, snow and ice from the side of radiation of Rx and Tx
antennas and clean them if necessary;
- the absence of outside objects in the sector where Tx and Rx are installed.
11.2.2. Every quarter:
- carry out all the works specified as works carried out every month;
check the state of the cables and cable connections.
11.2.3. During seasonal works it is controlled the height of the grass. If the height of the grass is
over 0,3m, the grass should be cut or removed by another method.
11.2.4. If the height of snow changes, false alarms can be generated because of the decrease of
the signal at the input of the receiving unit. In this case it is necessary to remove snow or to
change the height of Tx and Rx antennas installation.
After the height of the antenna mounting is changed, they should be aligned. The thresholds
should be adjusted according to the procedure given before.
12. TROUBLESHOOTING GUIDE
List of possible troubles is given in table 12.1.
Trouble
1. DADS
constantly
generates
alarms
Possible Cause
1. Communication line is
broken.
2. The protective device
in the supply unit is
blown.
3. The detector
alignment is disturbed.
4. Tx fails.
5. Rx fails.
Table 12.1
Repair
Check the cable
integrity and the
accuracy of its
connection. Restore
the communication
line.
Replace the
protective device.
Align Tx and Rx
antennas.
Replace Tx.
Replace Rx.
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Trouble
2. False alarms
of the detector
3. The detector
does not
generate
alarms when
an intruder
crosses the
sector.
Possible Cause
1. Moving branches are
in a detection zone and
they cause alarms.
2. High grass is in the
sector.
3. Snow blanket is higher
than one specified in the
manual and this reduces
an input signal.
4. Animals circulate in
the sector.
Repair
Inspect the sector
and remove
interference factors.
5. The Rx thresholds are
too low.
Check the accuracy
of the Rx thresholds
setting.
Check the accuracy
of the Rx thresholds
setting.
1. Rx thresholds are too
high.
2. The alignment is
disturbed.
Align Tx and Rx
antennas.
13. STORAGE
The detectors should be stored in the package in warehouses at the ambient temperature
+5С…+30 С and relative humidity 85% maximum.
During storage the influence of hostile environment should be prevented.
14. TRANSPORTATION
Packaged detectors can be transported by any transport (if by plane – in pressurized modules)
if they are transported in covered cars, holds or covered bodies they can be transported at the
distance up to 10 000 km.
The boxes should be placed to prevent their shifting or fall in case of jolts and blows.
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Microwave Local Protective Detectors
“FMW-3”
Certificate
4372-43071246-004 ПС
The purpose of the detector and its specifications are given in the corresponding clauses of the
description manual 4372-43071246-004 ТО.
1. DELIVERY KIT
The delivery kit includes:
transmitter
receiver
mounting kit
kit of tools and accessories
supply unit
1 item;
1 item;
1 item;
1 kit;
1 item.
(according to the special order);
Description manual and
service instruction, certificate
1 item.
2. ACCEPTANCE CERTIFICATE
The detector “FMW-3/ “, serial # _________ meets performance specifications of 437243071246-004ТУ and it is considered as operable.
Date of issue _________200
.
Mark of technical control department
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