Visonic DUET Installation Instructions Manual
DE1805 1
DUET
DUETDUET
DUET
Dynamic Dual-Technology Detector
Installation Instructions
1111. 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 supervises many aspects of the PIR operation and, in case of malfunction, 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 stateof-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 frequencies. 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 microcomputer 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.
2222. 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.
2 DE1805
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)
3333. 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 recommended 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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