Visonic Inc. DUO220EAM Manual De Usuario

 

DUO 220 / DUO 220 AM

 

 

 

1. INTRODUCTION 

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.  

The DUO 220 (MW/PIR) and DUO 220AM (MW/PIR/anti- 

masking) are state-of-the-art, microcomputer controlled dual- 

technology 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. 

 

2. SPECIFICATIONS 

Trouble Output: Open collector, 100 mA max.  

Input Voltage: 9 to 16 VDC 

Trouble/Masking  Indication:  LEDs flash alternately and TRB 

output pulls LOW 

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

PHYSICAL CHARACTERISTICS 
Dimensions (H x W x D): 104 x 60 x 35 mm (2.4 x 4.1 x 1.38 in.) 

PIR SECTION 

 

Weight: 86 g (3 oz) 

Lens Data: 34 beams, 90° field of view 
Max. Coverage: 12 x 12 m (40 x 40 ft) 

MOUNTING 

 

Vertical Adjustment: +2° to –12°, with a vertical adjustment scale  

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

Detector: Low noise dual-element pyroelectric sensor 

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  

Coverage Pattern 

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; 18

Ω 

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 

 

3. INSTALLATION 

• 

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.  

3.1 General Guidelines 

A few important rules must be observed before selecting a 

mounting location.  

• 

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. 

• 

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. 

• 

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. 

• 

Large reflecting objects (especially metals) within the coverage 

area can distort the microwave detector's coverage pattern. 

DE1823 

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