Visonic DUET-AM User Manual
DUET-AM, DUET-AM G3
Dual-Technology Microwave/PIR Intrusion Detector
1. FEATURES
Combined Fresnel and cylindrical optics improves detection
range and false alarm immunity.
Look-down "creep zone" lens.
True Motion Recognition™ (TMR) algorithm (patented) for
recognition of true motion of a human body.
DRO-stabilized MW microstrip technology.
MW Motion Simulator simulates the effect of a human body
moving in the MW field (patent pending for MW self-test).
Range control for adjusting the MW coverage.
PIR self-test by applying a short heat pulse.
Temperature compensation for the PIR section.
Unique tamper protection mechanism.
Programmable motion event counter (1 or 2 events).
Simple-to-use, three-position
vertical adjustment.
TEST input to enable/disable
the walk test LED remotely
(per
new European standard).
Relay output for trouble.
Anti-masking protection.
White light protection.
Optional swivel brackets for
wall or ceiling installation.
DUET-AM G3 has back
tamper switch and lowvoltage detection.
2. SPECIFICATIONS
Input Voltage: 9 to 16 VDC
Current Drain @ 12 VDC: 21 mA standby, 29 mA max.
Low Voltage Detection (DUET-AM G3 only): Below 8.5 VDC
PIR SECTION
Sensor: Low noise dual-element pyroelectric type
Tripping Indication: LED flashes green for up to 5 seconds
Motion Event Verification Counter: Selectable, 1 or 2 events
Front Lens Data (see Figure 2)
Beams: 32 in two layers (10 curtain beams in bottom layer)
Max. Coverage: 20 x 20 m (60 x 60 ft) / 90° field of view
Vertical Adjustment: FAR, MID and NEAR, by sliding the circuit
board along a 3-position scale.
MW SECTION
Oscillator: Microstrip DRO-stabilized Doppler sensor
Frequency
GHz for movement detector is prohibited or restricted from use in
Austria, Czech Republic, Estonia, Finland, French, Germany,
Portugal, Slovak Republic, Turkey, UK, Spain and Sweden).
Detection Range: Adjustable from 25% to 100% (5 m to 20 m)
Tripping Indication: LED lights green for up to 5 seconds
ALARM, TAMPER & TROUBLE DATA
Alarm Indication: LED lights red for 1.3 to 5 seconds if both
sensors trip
Alarm output: Solid State Relay. NC, 100 mA / 30 VDC, 35 ohm
maximum internal resistance. "Open" for 2 – 3 sec. in case of
alarm, masking event (applicable for DUET-AM G3 only) or
complete power failure.
Alarm Duration: 1.3 to 5 seconds
Tamper Switch: N.C., rated at 50 mA resistive / 30 VDC
Trouble output: Solid State Relay. NC, 100 mA / 30 VDC, 35
ohm maximum internal resistance. "Open" in case of autodiagnostic failure, Anti-Mask event, low voltage (applicable for
DUET-AM G3 only) or complete power failure.
Masking Detection Delay: About 60 seconds
: 10.687 GHz (in the UK only) or 10.525 GHz (10.525
Trouble/ Masking Indication: LED alternately flashes green and
red and TRB relay opens until the detector is reset.
MOUNTING
Form: Surface or corner (no brackets); surface, corner and ceiling
with brackets
Height: 2 - 2.6 m (6.5 - 8.5
ft) without bracket, 2 - 3.6
m (6.5 - 12 ft) with bracket.
Note: Mounting heights of
greater than 2.6m (8.5 ft)
may reduce the detector's
coverage range.
Caution: with brackets in
use, effective detection
ranges may differ from
those indicated in Figures 2
and 8.
Optional Brackets: BR-1
(surface), BR-2 (corner)
and BR-3 (ceiling).
ENVIRONMENTAL
RFI Protection: >30 V/m
up to 1000 MHz.
Operating Temperatures:
-10°C to 50°C (14°F to
122°F)
Storage Temperatures: -20°C to 60°C (-4°F to 140°F).
Standards: Complies with Part 15 of the FCC Rules.
See frequency restriction under "Frequency", at the left side.
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).
PATENTS
U.S. Patents 5,237,330 and 5,693,943
Installation Instructions
Figure 1. General View
TOP VIEW
90°
SIDE VIEW (”FAR” POSITION)
2 m
CURTAINS
Figure 2. Coverage Pattern
UPPER LAYER
20 m151050
60 ft453015
DE1812- DUET-AM/AM G3 Installation Instructions 1
3. INSTALLATION
3.1 Installation Tips
To minimize false alarms:
Do not aim at heat sources
Mount on solid, stable surfaces
Do not expose to air drafts
Prevent direct sunlight from
reaching the detector
Do not install outdoors
Keep wiring away from
electrical power cables
Do not install behind partitions
In addition, a few important rules must be observed while selecting a
mounting location:
A. Microwave radiation passes through glass and non-metallic walls.
Be sure to adjust the MW range so that it does not exceed the
room limits, or else motion in the next room or moving traffic along
the outer side of the wall will cause the MW sensor to trip.
B. Large reflecting objects (especially metals) in the coverage area
can distort the microwave sensor's coverage pattern.
C. If two DUET-AM units are installed in the same room or on
opposite sides of a shared wall, they should not face each other
and must be mounted at least 2 meters apart.
D. Do not install the DUET-AM in places where one of the two sensor
circuits alarms constantly or intermittently, due to environmental
interference.
E. DUET-AM users are advised to mount the unit in locations
where inadvertent approach to less than 1 m (3 ft) from the
detector is unlikely to occur.
B. Loosen the vertical adjustment screw, slide the PCB up and
remove it via the “keyhole” (see Figure 4).
C. Put the PCB aside until required again.
D. Refer to Figure 5 and punch out the mounting knockouts at
the rear of the base (for surface mounting) or at the angled
sides (for corner mounting). For DUET-AM G3, punch out also
the back tamper screw knockout.
Figure 3. Cover Removal
E. Punch out any one of the wiring knockouts shown in Figure 5.
F. Hold the base against the wall at the selected installation location,
mark the points for drilling and drill the holes (For DUET-AM G3,
also mark and drill hole for back tamper switch screw). Insert the
plastic dowels (supplied) if necessary.
G. Pass the wires through the wiring inlets into the base and attach
the base to the wall using the screws (supplied).
H. Return the PCB to its place within the base.
I. Proceed to wire the terminal block as instructed in Para. 3.3.
3.2 Mounting
A. Remove the front cover as shown in Figure 3.
IMPORTANT: When re-mounting the cover, remember to fasten the
screw well - this will force the tamper switch actuator upon the tamper
switch and will press it fully in.
Figure 4. PCB Layout
2 DE1812- DUET-AM/AM G3 Installation Instructions
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