Visonic DUO220EAM Users Manual

DUO 220 / DUO 220 AM

Dual Technology Microwave/PIR Intrusion Detectors

1. INTRODUCTION

The DUO 220 (MW/PIR) and DUO 220AM (MW/PIR/anti­masking) are state-of-the-art, microcomputer controlled dual­technology intrusion detectors. The PIR and MW technologies,
when combined in a single detector, complement each other to
assure the most reliable detection and immunity to false alarms.

The superiority of the DUO 220 series over other dual detectors
has been achieved by the advent of the True Motion
Recognition™ algorithm (patented). This advanced motion
analysis method provides the DUO 220 with the ability to
distinguish between the true motion of a human body and any
other disturbances which invariably cause false alarms.

Another unique feature of the DUO 220 is the MW Motion
Simulator circuit (patents applied for), that simulates the effect
created by a human body moving in the MW field. The simulation
routine is carried out periodically for self-testing, supervision and
assurance that the MW detector operates properly.

In addition, the pyroelectric sensor and its circuitry are tested at
regular intervals by application of a short-duration heat pulse. If they
do not react properly, a trouble alert is initiated.

To complement the detection pattern provided by the front lens,
the DUO 220 is fitted with a down looking lens at the bottom part
of the front cover. The purpose of this lens is to prevent access to
the detector by sneaking below it.

2. SPECIFICATIONS

GENERAL
Input Voltage: 9 to 16 VDC

Current Drain: About 26 mA @ 12 VDC
Masking Detection Delay (DUO-220 AM): About 60 seconds

PIR SECTION
Lens Data: 34 beams, 90° field of view

Max. Coverage: 12 x 12 m (40 x 40 ft)
Vertical Adjustment: +2° to –12°, with a vertical adjustment scale
Detector: Low noise dual-element pyroelectric sensor
Trip Indication: Green LED flashes for up to 5 seconds
True Motion Verification: Selectable, 1 or 2 motion events

MW SECTION
Oscillator: Microstrip DRO-stabilized type

Frequency (GHz): 2.45
Detection Range: Adjustable from 25% to 100% (3 m to 12 m)
Trip Indication: Green LED illuminates for up to 5 seconds

ALARM, TAMPER & TROUBLE DATA
Alarm Indication: Red LED illuminates for 2-3 seconds if both

detectors trip
Relay Contacts: Normally closed, 0.1 A resistive / 30 VDC; 18Ω

resistor in series with contacts
Alarm Duration: 2-3 seconds (red LED lights and output relay

contacts open)

Tamper Switch Contacts: N.C., 50 mA resistive /30 VDC

Trouble Output: Open collector, 100 mA max.
Trouble/Masking Indication: LEDs flash alternately and TRB

output pulls LOW

PHYSICAL CHARACTERISTICS
Dimensions (H x W x D): 104 x 60 x 35 mm (2.4 x 4.1 x 1.38 in.)
Weight: 86 g (3 oz)

MOUNTING
Direct: Surface or corner (without brackets), up to 2.4 m (8 ft)

ACCESSORIES (see Fig. 4)
BR-1: Surface mounted swivel

bracket, adjustable 30° down and
45° left/45° right.

BR-2: BR-1 with corner adapter (kit)
BR-3: BR-1 with ceiling adapter (kit)
ENVIRONMENTAL CONDITIONS
Operating Temperature:

–10°C to 50°C (14°F to 122°F)

Storage Temperature:
–20°C to 60°C (4°F to 140°F)
RFI Protection: >30 V/m (20 MHz

to 1000 MHz)
PATENTS: U.S. Patents 5,237,330

and 5,693,943; Des. 346,567
Compliance with Standards: EN

50131-1 Grade 2 Class II

Installation Instructions

Figure 1. DUO 220 General View

Figure 2. PIR and MW

Coverage Pattern

3. INSTALLATION

•

3.1 General Guidelines

A few important rules must be observed before selecting a
mounting location.

•

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 a rotating ceiling fan in the next
room, or moving traffic along the outer side of the wall will
cause the MW detector to alarm.

•

Large reflecting objects (especially metals) within the coverage
area can distort the microwave detector's coverage pattern.

DE1823 1

Although the DUO 220 is extremely immune to false alarms, it
is recommended to avoid installation in a room with very strong
air turbulence or close to high-power electrical cables.

•

If two DUO 220 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.

•

For best performance at high ambient temperatures, aim the
unit towards the coolest place in the protected area.

•

Always mount the unit on a firm and stable surface at a height
that renders optimum coverage of the protected area.

Increasing the vertical angle at a certain height will increase
the coverage range.

•

Do not install the DUO 220 in places where one of the two
detector circuits alarms constantly or intermittently, due to
environmental interference.

•

Special advice to DUO 220AM users: It is desirable to mount
the unit in locations where inadvertent approach to less than
1 m (3 ft) from the detector is unlikely to occur.

3.2 Direct Mounting

The unit can be installed directly on the wall or in a corner using
the mounting knockouts. Optional swivel brackets permit greater
flexibility when adjusting the coverage area (see Para. 3.3).

A. Loosen and remove the screw at the bottom of the case

(Fig. 1) and then take the cover off.

B. Punch out the appropriate mounting and wiring knockouts in

the base.

Note: For wall surface mounting, use the two elongated

knockouts at the middle of the base. For corner mounting, use
two diagonally opposite knockouts at the angled sides of the
base (Fig. 3).

Figure 4. Optional Swivel Brackets

3.4 Wiring

Connect wires to the terminal block in the following order (Fig. 5):

Figure 3. Printed Circuit Board Layout

C. Select the mounting location in accordance with the

guidelines in Para. 3.1.

D. Temporarily remove the PC board from the base. Take care

not to lose the fastening screw.

E. Use the base as a template for marking the drilling points.
F. Drill the mounting holes and insert masonry anchors if

required.

G. Pass the wires through the punched-out wiring inlet(s) and

mount the base in place using two screws.

H. Seal all openings in the base with RTV to prevent insects from

entering the unit.

I. Remount the PC board and secure it with its vertical

adjustment screw.

3.3 Optional Swivel Brackets

The BR-1 is a general purpose swivel bracket used for vertical
and horizontal positioning of the DUO 220. With the BR-1, the
unit can be tilted down from 0° to -30° and swiveled 45° left or
right (see Fig. 4).

The BR-2 is a swivel bracket kit for room corner installations. It
consists of the BR-1 and a corner adapter.

The BR-3 is a swivel bracket kit for ceiling installations. It consists
of the BR-1 and a ceiling mounting adapter.

Caution! When a swivel bracket is used, the effective detection
range may differ from that indicated in Table 3 (Para. 5.1).

Terminal: TAMP
Connect to: A normally closed 24-hour tamper zone of the

control panel.

Details: When the cover is removed, the tamper switch opens.

Terminal: NC
Connect to: Normally closed burglar protection zones of the

control panel.

Details: Upon alarm or power failure, the output relay’s normally
closed contacts open.

Terminal: TRB
Connect to: 24-hour trouble zone, parallel to an E.O.L. resistor

(see Figure 5).
Details: The TRB open collector output will be grounded upon

detector malfunction or upon masking (DUO 220AM), causing
disturbance in the trouble zone of the associated alarm system.

Alternative: a buzzer or an interface relay may be connected
across the TRB output and the 12 VDC (+) terminals.

Terminals: 12 V (+) and (–)
Connect to: A power source within the range of 9 to 16 VDC.

Take care not to reverse the polarity.

Details: It is advisable to connect the power source only after all
other connections have been completed and rechecked. Discon­nect the AC mains from the alarm control panel and verify that
the voltage supplied to the detector is above 9 Volts with the
backup battery as the only power source.

IMPORTANT:

CE-approved control panels with current-limited DC output.

Note: Use RTV to seal the base opening(s) to prevent insects
from entering the detector.

Figure 5. Terminal Block Wiring

(tamper switch)

(alarm relay)

(trouble output)

To comply with CE safety requirements, connect to

2 DE1823