Visonic DUET User manual

DE1805 1
DUET
DUETDUET
DUET
Dynamic Dual-Technology Detector Installation Instructions
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1. INTRODUCTION
. INTRODUCTION. INTRODUCTION
. INTRODUCTION
1.1 Feature Summary
• Microcomputer software signal processing.
• Watchdog microcomputer supervision.
• Microwave and PIR circuit supervision.
• Selectable PIR pulse counter with alternate polarity signal
processing.
• Separate diagnostic indications for PIR trip, microwave trip and
alarms.
• Temperature compensated PIR circuitry.
• Microwave detector range control
• Dynamic Software Filtering (DSF) selectively filters out fluo-
rescent light interference at 50 and 60 Hz. Also filters away the
harmonics of these frequencies and random noise.
• Protection against transients and RFI.
• Dual element PIR detector.
• Six interchangeable lenses with coverage pattern up to 140°.
• Adjustable vertical calibration.
• Look down "creep zone".
• Surface and corner mounting.
• Optional swivel brackets.
• Switchable walk test indication.
• Switchable diagnostic indication for the PIR and microwave
sensors.
• State-of-the-art microstrip DRO-stabilized Microwave technology.
• Novel microwave signal-to-noise ratio enhancement by soft-
ware filtering techniques.
• Controlled power-up procedures.
1.2 PIR Detector
The PIR detector includes an alternate polarity pulse counter.
When the PULSE jumper is set to ON (Para 3.5), the PIR
detector will function in the 2-pulse alternate polarity mode, and
will be tripped by entry into a detection beam followed by exit
from the beam. When the PULSE jumper is set to OFF, the PIR
will function in the single pulse mode, and will be tripped by every
entry into a beam or exit from a beam. The green LED indicates a
PIR trip. This indication will be enabled only in the DIAGNOSTIC
TEST MODE (selected by the DIAG jumper).
A temperature compensating circuitry stabilizes the detection
range at all operating temperatures. The microcomputer super-
vises many aspects of the PIR operation and, in case of mal-
function, a TROUBLE indication is initiated (Para. 1.5).
Figure 1. General View
Figure 2. Printed Circuit Board
The PIR detector provides a down looking "creep zone". Various
lenses can be used, from the standard lens (No.15D: 100 / 60 X
80 ft) to the ultra wide angle lens (No. 76D: 140° / 60 X 100 ft).
See pattern diagrams in section 2.
1.3 Microwave Detector
The microwave detector employs specially-developed state-
of-the-art microstrip DRO circuitry. The microwave signal is
processed by a microcomputer, using custom-developed pure
software techniques. A unique Dynamic Software Filtering (DSF)
technique is employed to filter out random noise and fluorescent
lighting disturbance at both 50 and 60 Hz (including their
harmonics), thereby allowing the microwave detector to detect
very fast motion. The filtering software adapts itself to 50 or 60 Hz
environments by automatic recognition of the disturbance fre-
quencies. The DSF technique also increases the detection
sensitivity and range by enhancing the signal-to-noise ratio much
beyond that of a regular microwave detector.
The microwave coverage pattern is specially designed to allow
the use of ultra-wide lenses (up to 140°) with the PIR. The micro-
computer supervises the operation of the microwave detector in
many ways and, in case of malfunction, a TROUBLE indication is
initiated (Para. 1.5).
1.4 LED Indicators
The three LEDs provide various indications in accordance with
the mode of operation. The red LED provides alarm indications.
The yellow LED relates to the microwave detector and indicates
microwave trips and troubles. The green LED relates to the PIR
detector and indicates PIR trips and trouble. The latter 2 LEDs
make it possible to walk-test each detector separately (diagnostic
test).
LED Response Summary Table
Function Indication
DIAGNOSTIC TEST
(selected by the DIAG jumper)
Green LED is ON for 3 - 5 seconds upon PIR
trip
Yellow LED is ON for 3 - 5 seconds upon
Microwave trip
Red LED is ON for 3 - 5 seconds upon dual
trip
TROUBLE PIR trouble: Green and red LEDs flash
alternately
Microwave trouble: Yellow and red LEDs
flash alternately
WALK TEST
(selected by the WALK jumper)
Red LED is ON for 3 - 5 seconds upon alarm
STABILIZATION (upon power up) Red LED flashes for about 100 seconds
1.5 Dynamic Trouble Supervision (DTS)
The DUET microcomputer carries out a continuous, diversified
testing of the microwave as well as PIR circuitries to detect a
possible failure in either technology. If a failure is detected in any
technology, the LEDs identify the faulty detector as follows:
Microwave trouble: Yellow and red LEDs flash alternately
PIR trouble: Green and red LEDs flash alternately.
The TROUBLE indication will be maintained for as long as the
failure condition lasts. The indications will be canceled only upon
elimination of the cause for trouble.
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2. SPECIFICATIONS
. SPECIFICATIONS. SPECIFICATIONS
. SPECIFICATIONS
Electrical
Input Voltage: 9–16 VDC
Current Drain: Approximately 20 mA at 12 VDC
PIR Detector: Dual-element low noise pyroelectric type
PIR Pulse Counter: 1 or 2 pulses with alternate polarity signal
processing.

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M.W. Detector: Microstrip DRO-stabilized oscillator.
Microwave Frequency: 10.525 GHz (USA) 10.687 GHz (UK)
Microwave Detection Range: Adjustable between 25% and 100%
of total range
Alarm Period: 3-5 seconds
Relay Output: Normally closed contacts with 18 ohms resistor in
series. Contact ratings 0.1 A resistive / 30 VDC.
Tamper Contacts: Normally closed, 0.5 A resistive / 24 VDC.
Optical
Detection Patterns: 6 interchangeable lenses are available (see
patterns below).
PIR Adjustment: Vertically, 0° to –12° with calibrated scale.
Mounting
Configuration: Wall or corner mounting (without additional
bracket).
Mounting Height: Up to 3.6 m (12 ft.)
Optional Mounting Accessories:
BR-1: Swivel bracket, vertically adjustable 30° downward;
horizontally adjustable 45° left/45° right.
BR-2: Kit consisting of BR-1 and a corner adapter.
BR-3: Kit consisting of BR-1 and a ceiling adapter.
Environmental
Operating Temperatures: –10°C to 50°C (14°F to 122°F)
Storage Temperatures: –20°C to 60°C (–4°F to 140°F)
RFI Protection: Greater than 20 V/m (20 to 1000 MHz)
Physical
Dimensions (H X W X D): 123 x 76 x 48 mm (4-13/16 x 3 x 1-7/8 in.)
Weight: 145 g (4.5 oz).
Models Available
DUET - standard version
DUET-ST - SUPER-TECH version
Patents
U.S. Patent 5,237,330, Microwave detector.
Other international patents applied for.
Interchangeable Lenses
No. 15D - Corner Mounting
(Standard Lens)
• ••
•
No. of Beams: 58
• ••
•
Field of View: 100°
Max. Coverage: 18 X 24 m (60 X 80 ft)
No. 76D - Ultra Wide Angle
• No. of Beams: 36
• Field of View: 140°
Max. Coverage: 18 X 30 m (60 X 100 ft)
No. 37D - Combined Room + Corridor
• No. of Beams: 20
• Field of View: 140°
Max. Coverage: 21 X 30 m (70 X 100 ft)
No. 10D - Combined Room + Ceiling
• No. of Beams: 76
• Field of View: 100°
Max. Coverage: 13.5 X 18 m (45 X 60 ft)
No. 17D - Pet Alley
• ••
•
No. of Beams: 24
• ••
•
Field of View: 100°
Maximum Coverage: 18 X 24 m
( 60 X 80 ft)
For optimum coverage throughout the
protected area and for minimum dead
zones, this lens requires mounting the
detector from 0.8 -1.5 m (2.5 - 5 ft)
height and adjusting the coverage
pattern carefully above the maximum
expected height of the pet's activity.
Note: The creep zone should be masked
No. 34D - Long Range
• No. of Beams: 16
• Field of View: 90°
Max. Coverage: 21 X 3 m (70 X 10 ft)
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3. INSTALLATION
. INSTALLATION. INSTALLATION
. INSTALLATION
3.1 Mounting Instructions
The DUET can be mounted on a wall (surface mount) or in room
corners. Always mount the unit on a firm and stable surface, at a
height that provides optimum coverage of the protected area.
IMPORTANT: This device is for indoor use only!
Select the mounting location so that the expected motion of an
intruder will cross the coverage area of the DUET.
Aim the DUET towards the coolest place in the protected area,
thereby obtaining maximum of the PIR section sensitivity where
high ambient temperatures are expected.
The recommended mounting height for the wide angle coverage
pattern is 2.4 m (8 ft). Built-in installation aids enable you to
mount the unit anywhere up to 3.6 m (12 ft) height. An accurate
adjustment table (Table 1) includes the recommended angles for
various combinations of range and mounting height.
With pet-alley coverage pattern (lens No. 17D), it is recom-
mended to install the sensor at the lowest possible height that
enables directing the detection beams about one foot above the
maximum level of the pet's activity. When this lens is used, The
lookdown lens should be masked as directed in Para. 3.3 c.

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A. Direct Mounting
To mount the detector, proceed as follows:
1. Loosen and remove the
small screw at the bottom
of the detector (near the
"lookdown" lens). Remove
the cover.
2. Punch out the appropriate
mounting knockouts and
wiring knockouts in the
base (Fig. 3). The round
knockout at the bottom and
the elongated knockout at
the top serve for surface
mounting. The knockouts at
the angled sides are provi-
ded for corner mounting. Figure 3. Knockout Locations
3. Use the base as a template to mark the drilling points.
4. Pass the wires through the punched-out wiring outlets and
mount the base in place, complete with printed circuit board.
5. Complete all wiring as instructed in Para. 3.2 below.
B. Swivel Bracket BR-1
The BR-1 is a general
purpose adjustable moun-
ting bracket which accom-
modates the DUET. The
BR-1 can be vertically
adjusted 30° downward,
and horizontally – 45° left
and 45° right (Fig. 4). Figure 4. BR-1 Swivel Bracket
Important: With swivel brackets in use, the effective
detection range may differ from that indicated in table 1.
3.2 Wiring
The maximum wiring distance between a detector and its power
source depends on the number of units connected in parallel and
on the wire gauge. The following table may be used for guidance:
WIRE GAUGE 22 20 18 16
Maximum Wiring Length (ft) 325 550 900 1500
Maximum Wiring Length (m) 115 165 275 450
Note: The maximum wiring
length given in the table should
be divided by the number of
detectors connected in parallel.
Refer to Figure 5 and connect
the wires to the terminal block
as outlined below: Figure 5. Terminal Block
A. Connect the TAMPER N.C. terminals to a normally-closed,
24-hour protection zone of the control panel. Tamper switch
contacts will open when the detector cover is removed.
B. Connect the relay's N.C. and C terminals to one of the
normally closed burglar protection zones of the alarm
system's control panel. The relay contacts will open when an
intruder is detected or upon power loss.
C. Connect the 12V (+) and (–) terminals to a 9 -16 VDC power
source, taking care not to reverse the polarity. The power
source should have a backup battery capable of supplying
emergency power for at least 4 hours.
D. Seal all openings in the detector's base with RTV to prevent
insects from entering the unit.
Caution: when all wiring is completed, bend slack
conductors near the terminal block towards the base of
the unit to ensure that they do not obstruct the radiation
path between the PIR sensor and the creep zone lens at
the bottom of the front cover.
E. Reinstall the front cover and fasten it securely, using the small
screw at the bottom.
3.3 Adjusting the Coverage Area
A. Vertical Adjustment of the PIR Detector
The DUET is supplied complete with the standard Corner
Mounting lens (No. 15D). The vertical adjustment scale (at the
upper right side of the printed circuit board) and the plastic
pointer facing it on the base, indicate the vertical angle between
the upper layer of the PIR detector's coverage pattern and the
horizontal line of the unit. Table 1 gives the recommended scale
adjustment for various combinations of mounting height and
coverage range (indicated in feet and meters).
Table 1. Vertical Adjusting Scale
Note: The coverage pattern refers to areas where the PIR
beams and the microwave pattern completely overlap. The
DUET will activate the alarm relay only after motion has been
verified by both technologies.
Important Note: (60 ft) is the maximum range tested by UL
(using Lens 15D).
The table should be used only to the maximum coverage range of
the selected lens, as indicated in the lens pattern. The scale
permits downward pattern adjustments from 0° to –12°. Setting
this scale allows you to compensate for the installation height and
obtain the desired coverage. You may verify the actual coverage
range by carrying out the Diagnostic Test (see Para 3.9). All
DUET detectors are factory preset and shipped with a –5° setting.
To readjust the vertical pattern, loosen the screw which fastens
the printed circuit board to the base. Slide the PC board up or
down to the desired angle and tighten the screw firmly.
B. Setting the PIR Pulse Counter
The DUET is equipped with a programmable pulse counter which
can be set to count a single pulse or 2 pulses with alternate
polarity before initiating an alarm. To set the PIR pulse counter,
place the PULSE jumper at the desired position (see Para. 3.5).
Two pulses provide improved protection against false alarms
caused by all types of environmental disturbances.
The 1 Pulse setting actually disables the pulse counter. It should
be used when it is necessary to activate an alarm on the first
detected pulse, or in high-security installations, when fast 'catch'
performance is of greatest importance.
C. Beam Masking Material
A special beam masking sheet supplied with each detector can be
used to mask individual segments in the lens array which are exposed
to potential disturbance sources (heaters, blowers, pets etc.). The
material is transparent to visible light but blocks infrared radiation.
To block individual beam(s), locate the corresponding segment(s)
in the array. Cut the masking sheet to the exact size of the lens
segment to be blocked. Remove the backing paper and apply the
mask accurately to the inner surface of the chosen segment.
Note: In some cases, more than one layer of the masking
material may be required to completely block the lens segment.
D. Range Adjustment of the MW Detector
The range control, located under the vertical adjustment scale,
should be adjusted to obtain the desired coverage area:
1. Rotate the range control to MIN.
2. Carry out a Diagnostic Test (Para. 3.9) to determine the actual
coverage of the MW detector.

4DE1805
3. Increase the range gradually, until detection is assured when
you walk straight towards the detector, across the detector's
field of view and diagonally within the protected area.
3.4 Changing the Lens
A. Remove the DUET's front cover.
B. Insert a screwdriver blade beneath one of the lens retainer's
flexible sides, lever the edge free of the restraining tabs and
remove the lens.
C. Insert the new lens with its smooth surface outside. Observe
its trapezoidal shape and fit the lens into place with the
longest side along the bottom of the cover (toward the 'creep
zone' lens).
Note: Since the lens retainer matches the shape of the lens,
position it correctly before performing the next step.
D. Insert one edge of the lens retainer below the restraining tabs
of the cover and force the other side inward with your fingers
until it snaps into place.
Coverage patterns for the interchangeable lenses are shown
in Section 2. Lens No. 15D is UL-approved.
3.5 Setting the Jumpers
Three jumper selectors control 3 different functions of the DUET
detector. Each jumper is set to ON by mounting it on the top and
middle pins, and set to OFF by mounting it on the bottom and
middle pins (Fig. 6). Before testing the DUET, set all 3 jumpers
according to your specific requirements.
PULSE – Pulse Count Selector
When this jumper is set to OFF, the PIR operates in the single-
pulse mode. When set to ON, the PIR operates in the 2-pulse
Alternate Polarity mode. (refer to Para. 3.2).
WALK – Alarm Indicator ON/OFF
When the WALK jumper is set to
ON, the walk-test indication of the
red LED is enabled. When the
switch is set to OFF, the walk test
indication is disabled. Figure 6. Jumper Selectors
DIAG – Diagnostic Indications ON/OFF
When the DIAG jumper is set to ON, the diagnostic indications of
the two technologies are enabled. The green LED indicates a PIR
trip and the yellow LED indicates a Microwave trip. When the
switch is set to OFF, the diagnostic indications are disabled.
3.6. Powering Up the Detector
Connect the system to its power source. Since the DUET
requires about 100 seconds to stabilize, the relay is maintained
energized throughout this period, and the red LED flashes
indicating that stabilization is in progress. Normal operation
begins after the 100-second delay.
3.7 General Testing Information
The DUET enables the installer and the user to check the dual
detector combined area coverage (Walk Test) as well as each
individual technology (Diagnostic Test).
The UL and other authorities require to switch off the walk test
and diagnostic indication after installing the alarm system, to
prevent potential intruders from discovering the precise detection
pattern of the detector. The WALK jumper, when set to OFF,
disables the Walk Test indication. The DIAG jumper, when set to
OFF, disables the Diagnostic indications.
3.8 Walk Test
When the PIR and Microwave technologies detect motion at the
same time, the relay is activated for 3 to 5 seconds and
simultaneously the RED LED indicates an alarm condition. This
enables the installer and the end-user to check the coverage
pattern of the detector and its proper function.
A. Set the WALK jumper to ON, to enable the Walk Test
indication (red LED).
B. Walk test the entire range and coverage area by walking
across the field of view of the detector. Observe the red LED.
It will light up whenever you are detected by both technologies.
Allow two seconds between each test for the unit to stabilize.
C. After completing the walk test, disable the red LED by setting
the WALK jumper to OFF.
Attention: The range and complete coverage area should
be checked at least once a year. To assure proper
continuous function, the user should be instructed to
perform a walk test at the far end of the coverage pattern to
assure an alarm signal prior to each time the alarm system
is armed.
3.9 Diagnostic Test
If required, you can walk-test each technology separately, using
the DIAGNOSTIC indication via the GREEN LED (PIR) and the
YELLOW LED (MW), to determine the exact detection areas of
the PIR and MW detectors. The results of such individual walk
tests are helpful in analyzing a detection or false alarm problem
and making corrections or adjustments accordingly.
A. Set the DIAG jumper to ON, to enable the diagnostic
indications (green and yellow LEDs).
B. Test the entire range and coverage area by walking across
the field of view of the detector in various directions. Observe
the yellow and green LEDs. Each will light for 3 to 5 seconds
whenever you are detected by the corresponding technology.
C. After completing the test, disable the diagnostic indications by
setting the DIAG jumper to OFF.
WARRANTY
WARRANTYWARRANTY
WARRANTY
Visonic Ltd. and/or its subsidiaries and its affiliates ("the Manufacturer") warrants its
products hereinafter referred to as "the Product" or "Products" to be in conformance with
its own plans and specifications and to be free of defects in materials and workmanship
under normal use and service for a period of twelve months from the date of shipment by
the Manufacturer. The Manufacturer's obligations shall be limited within the warranty
period, at its option, to repair or replace the product or any part thereof. The Manufacturer
shall not be responsible for dismantling and/or reinstallation charges. To exercise the
warranty the product must be returned to the Manufacturer freight prepaid and insured.
This warranty does not apply in the following cases: improper installation, misuse,
failure to follow installation and operating instructions, alteration, abuse, accident or
tampering, and repair by anyone other than the Manufacturer.
This warranty is exclusive and expressly in lieu of all other warranties, obligations or
liabilities, whether written, oral, express or implied, including any warranty of
merchantability or fitness for a particular purpose, or otherwise. In no case shall the
Manufacturer be liable to anyone for any consequential or incidental damages for breach
of this warranty or any other warranties whatsoever, as aforesaid.
This warranty shall not be modified, varied or extended, and the Manufacturer does not
authorize any person to act on its behalf in the modification, variation or extension of this
warranty. This warranty shall apply to the Product only. All products, accessories or
attachments of others used in conjunction with the Product, including batteries, shall be
covered solely by their own warranty, if any. The Manufacturer shall not be liable for any
damage or loss whatsoever, whether directly, indirectly, incidentally, consequentially or
otherwise, caused by the malfunction of the Product due to products, accessories, or
attachments of others, including batteries, used in conjunction with the Products.
The Manufacturer does not represent that its Product may not be compromised and/or
circumvented, or that the Product will prevent any death, personal and/or bodily injury
and/or damage to property resulting from burglary, robbery, fire or otherwise, or that the
Product will in all cases provide adequate warning or protection. User understands that a
properly installed and maintained alarm may only reduce the risk of events such as
burglary, robbery, and fire without warning, but it is not insurance or a guarantee that such
will not occur or that there will be no death, personal damage and/or damage to property
as a result.
The Manufacturer shall have no liability for any death, personal and/or bodily injury
and/or damage to property or other loss whether direct, indirect, incidental,
consequential or otherwise, based on a claim that the Product failed to function.
However, if the Manufacturer is held liable, whether directly or indirectly, for any loss or
damage arising under this limited warranty or otherwise, regardless of cause or origin, the
Manufacturer's maximum liability shall not in any case exceed the purchase price of the
Product, which shall be fixed as liquidated damages and not as a penalty, and shall be the
complete and exclusive remedy against the Manufacturer.
Warning: The user should follow the installation and operation instructions and among
other things test the Product and the whole system at least once a week. For various
reasons, including, but not limited to, changes in environmental conditions, electric or
electronic disruptions and tampering, the Product may not perform as expected. The user
is advised to take all necessary precautions for his/her safety and the protection of his/her
property.
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VISONIC LTD. (ISRAEL): P.O.B 22020 TEL-AVIV 61220 ISRAEL. PHONE: [phone], FAX: [phone]
VISONIC INC. (U.S.A.): 10 NORTHWOOD DRIVE, BLOOMFIELD CT. 06002-1911. PHONE: [phone] FAX: [phone]
VISONIC LTD. (UK): UNIT 1, STRATTON PARK, DUNTON LANE, BIGGLESWADE, BEDS. SG18 8QS. PHONE: [phone] FAX: [phone]
VISONIC LTD. 1998 DUET/UL D-1805-0 NEW: DE1805- (REV. 2, 4/98)