DUAL TECH HT

GJD362 Dual Technology External Detector

Package contents

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Package Contains:

• 1 x Dual Tech HT

1 x Drilling template for fixing holes

3 x 31.75mm wall plugs

3 x 31.75mm screws

2 x Spare Sliding Curtains

2 x Tamper Feet

1 x Installation manual

Introduction

The Dual Tech is an outdoor motion detector and alarm trigger.

Utilising dual detection technology, the Dual Tech delivers precise, reliable presence detection.

Quick installation

1.

2.

3.

Mount and connect the detector following the instructions given later in this sheet.

Apply supply voltage to the unit. The detection LED

(blue) flashes three times.

Wait approximately 2 to 3 minutes to allow the detector to settle.

Note: The front cover must be fitted when walk testing.

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The default settings are:

• Range: 20 meters

Pulse count: 1

Detection LED: off

Mounting the unit

During installation, protect the electronics against water, as trapped moisture can affect or damage the unit.

1. Drill the wall to accept the two fixing screws, the cable entry,

and the tamper cup (if used). See Figures 1 and 2. A hole-

drilling template is provided.

Note: We recommend using the tamper cup on uneven wall

surfaces.

2. Remove the cover assembly by loosening the locking screw

using the allen key provided. The cover hinges from the top

and lifts out of the location slot. See Figure 3.

3. Feed standard eight-core alarm cable into the cable entry.

Bare the wires and connect 6 wires to the terminal block and

optionally connect 2 to the tamper board. See Figures 2, 4, 5,

6 & 7.

4. Screw the unit to the wall ensuring that the tamper pin is

correctly located and that the tamper microswitch is closed.

See Figure 7. To aid installation, two spare tamper feet are

provided. One is 1mm longer and the other is 2mm longer

than the tamper foot originally fitted. The tamper foot is a

push fit and can be removed by carefully pulling it from the

pin. See Figure 2.

5. When the detector is aligned, connected, and programmed to

suit the installation, replace the front cover and lock as

shown. See Figure 8.

Multibeam alignment & masking

The multifunction lens fitted to Dual Tech produces seven long range beams and seven medium to short range curtain

PIR beams. The PIR circuitry detects changes in heat and movement in the beam pattern; therefore items such as trees, shrubs, ponds, boiler flues, and animals should be considered when positioning the detector.

Note: The PIR sensor is more sensitive to movement across the beams, and less sensitive to movement directly towards or away from the beams.

The detector module is fitted with two sliding shutters to reduce the detection angle.

The curtains are fitted to the pan and tilt module as shown in Figure 9 (shown with primary and additional curtain sliders fitted). Each section of the detector lens gives a coverage pattern of approximately 10 degrees.

An additional set of curtain sliders is provided should the beam pattern need to be narrowed even further, e.g. if the minimum detection angle of 10 degrees is required.

When coverage exceeds the desired detection area, adjust the module as required and mask off any beams, either vertically or horizontally, to avoid unwanted detection.

Use portions of the self-adhesive silver mask applied to the rear, smooth side of the lens as shown in Figures 10 & 11.

Always replace the lens the correct way up to ensure exact beam pattern coverage (top of the lens is marked TOP).

When mounted at heights above 3 metres there could be a significant reduction in the range of detection and the target will have to move a greater distance within the field of view before an alarm is generated.

Masking configurations for maximum range

Configuration Mounting

Height

(Metres)

3 Multibeam

(Optimum)

Pet Immunity 1.5

Tilt

(°)

0

Max.

Range

(Metres)

20

-2 20

Reference

Figure 10

Figure 11

Figure 12 shows the pattern for the maximum range in the optimum position (see Figure 10).

Figure 13 shows the pattern for the minimum range (10m).

Figures 14 and 15 illustrates alignment recommendations for when the detector is mounted close to a wall.

-1-

The alignment shown in Figure 14 is not recommended. If the detector module is orientated at an angle of 90° to the perimeter, the mounting wall may cut off short and medium range beams. The long range beam will still detect an intruder, however the wall can cause false alarms when heated by sunlight.

Figure 15 shows the recommended alignment. The detector module is orientated at a 55° angle to the perimeter. As a result, short and medium range beams are parallel to the perimeter, but the detection range along the perimeter is reduced to 15 metres.

Programming

To change any of the detectors settings change the configuration of the programming switches (see Figure 16)

Programming Chart

Option

Range 10 metre

Range 20 metre

Pulse count 1

Pulse count 2

LED Off

LED On

Switch Configuration

Switch 1 off

Switch 1 on

Switch 2 off

Switch 2 on

Switch 3 off

Switch 3 on

Programming options definitions

Pulse Count

This is the number of times the unit has to detect on both of its sensors before signalling an output.

LED

LED Off – LED disabled.

LED On – LED signals a detection.

Walk test

In walk test mode, the detection LED option is set to ON, and the pulse count option is set to 1. The detection LED lights each time the Dual Tech detects your presence.

The walk test mode is automatically selected after power up and cancels automatically after there has been no detection for

5 minutes. After this the LED will be disabled unless selected on with switch 3.

The test mode ends automatically five minutes after last detection. Alternatively, press the program button three times, or remove and then reapply power to cancel the walk test mode.

Note: When you conduct a walk test, make sure that the front cover is in place. Do not conduct walk tests with the cover removed.

The range of the detector increases without the protective front cover. Therefore the front cover must be fitted to establish the correct beam pattern. Use programming chart to adjust the range as necessary. Pan and tilt the lens module over the field of view to obtain the correct coverage area.

Accessories

GJD is able to supply the following accessories to aid installation:

GJD304 Conduit cable entry adaptor ring

GJD305 Pole mount clamp

GJD380 D-Tect Walk Tester

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SPECIFICATIONS

Microwave

Frequency

Detection Area

Coverage

Adjustment

Fresnel Lens

Customised

Optics

Outputs

No. 1

No. 2

Power Input

Current

Pulse Count

Temp.

Compensation

Control

Walk Test

Selectable between 10 & 20 metres.

10-70 degrees detection angle,

20m x

20m coverage max.

180 degree pan + 90 degree tilt.

28 zones for each Pyro pair, which can be masked with curtain sliders and special masking tape (supplied).

Double silicon shielded quad element eliminates 50,000 Lux of white light.

Silent solid state magnetically immune.

N / OPEN

Volt free relay signal contact 24VAC/

DC

@ 50mA with an integral 25Ω

Alarm time 5 seconds

N / CLOSED

Volt free relay signal contact

24VAC/DC @ 50mA with an integral

25Ω

Alarm time 5 seconds

9 to 15 VDC.

9mA (12V nominal).

1 - 2.

Digital sensitivity adjustment.

Digital microprocessor – non volatile memory

Output test mode with LED indication

Operating Temp.

Housing

Protection Rating

Dimensions

Weight

Mounting Height

Cable < 200m

Cable < 500m

-20 to +55 Centigrade

Conformal coated electronics for increased stability

High impact ABS.

IP 65

145 x 120 x 115 mm

274 grams NET, 390 grams GROSS

Variable - optimum height 3 metres.

Using all 3 outputs (including tamper) – 8 core 7/0.2mm

Using all 3 outputs (including tamper) – 8 core 16/0.2mm

CE Mark

-3-

1

3

5

7

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2

4

6

8

9

11

13

10

0 10m 20m

12

0 10m 20m

14

0 10m 20m

15

0 10m 20m

-5-

16

0 10m 20m

Switches

ENGINEER NOTES

Technical: 01706 363990

Sales: 01706 363998

Fax: 01706 363991

Email: [email protected]

Unit 2, Birch Business Park, Whittle,Lane,Heywood,OL10 2SX