GJD MX2 User Manual

MX 20

GJD103 Quad PIR Movement Detector

Package Contents

• 1 x MX20

• 2 x Shutters

• 3 x 27mm wall plugs

• 3 x 27mm screws

• 3 x Tamper Feet

• 1 x Tamper Cup

• 1 x Installation manual

• 1 x Opening Tool

• 1 x Lens Mask

INTRODUCTION

The MX20 is an attractively styled, 20 metre Passive Infrared
(PIR) detector, with advanced features such as dual tamper
switches for case and wall-mount tamper detection, sensor

mounted white-light lter and zone blanking using vertical
curtain shutters and horizontal masking for precise area

coverage.

QUICK INSTALLATION

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

2. Congure programming switches as required referring to

instructions given later in this manual.

3. Apply supply voltage to the unit. The detection LED ashes

once.

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

NOTE: The front cover must be tted when walk testing.

The default settings are:

• Range: 20 metres

• Pulse Count: 1 (always set to 1 during walk rest)

• Detection LED: On (recommend for set up process)

MOUNTING THE UNIT

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

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

and the tamper cup (if used)

Note: We recommend using the tamper cup on uneven
wall surfaces.

2. Remove the cover assembly by loosening the locking screw

and using the opening tool provided. The cover hinges from
the top and lifts out of the location slot.

3. Feed the cables into the cable entry and Screw the unit to

the wall ensuring that the tamper pin is correctly located and
that the tamper microswitch is closed.

Three spare tamper feet of different lengths are provided

to aid installation, The tamper foot is a push t and can be
removed by carefully pulling it from the pin.

4. Connect the cables to the screw-terminal block on the back
of the detectors PCB ( see gure 1)

5. When the detector is aligned, connected and programmed to
suit the installation, replace the front cover and lock in place.

MULTI BEAM ALIGNMENT & MASKING

The multifunction lens tted to MX20 produces 5 long range
beams and 5 medium to short range curtain PIR beams (see

Figure 2). The PIR circuitry detects changes in heat and

movement in the beam pattern; therefore items such as trees,
shrubs, ponds, boiler ues 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 tted with two sliding shutters to reduce

the detection angle.

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 Figure 2. Always

replace the lens the correct way up to ensure exact beam

pattern coverage.

When mounted at heights above 3 metres there could be a
signicant reduction in the range of detection and the target will
have to move a greater distance within the eld of view before

an alarm is generated.

Masking Congurations for Maximum Range

Conguration

Multibeam
(Optimum)

Pet Immunity* 1.5 5 20 Figure 4&5

(see gure 5)
Black area should be masked for pet alley applications up to 20 metres

Figure 6 shows the pattern for the maximum range in the
optimum position (see Figure 4).

Figures 7 and 8 illustrates alignment recommendations for
when the detector is mounted close to a wall.

The alignment shown in Figure 7 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 8 shows the recommend 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.

Mounting

Height

(Metres)

3 10 20 Figure 3

Tilt (°)

Max.

Range

(Metres)

Reference

-1-

PROGRAMMING

To change any of the MX20 settings, change the conguration
of the programming switches (see Figure 9) as required,

switch 4 controls LED state, switch 3 controls Pulse Count and
switches 1 and 2 control range.

Example: To change the range to 10 metres:

1. Set switch 1 to OFF (down position)

2. Set switch 2 to ON (up position)

PROGRAMMING CHART

Option Switch Conguration Reference

LED ON Switch 4: On (up) Figure 10

LED OFF Switch 4: Off (Down) Figure 11

Pulse
Count 1

Pulse
Count 2

5 Metre
Range

10 Metre
Range

15 Metre
Range

20 Metre
Range

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

Note: It is recommended that the detection LED be enabled

during walk test to aid in set up. The detection LED lights each
time the MX20 detects your presence.
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 tted to establish the
correct beam pattern. Use programming chart to adjust the
range as necessary. Pan and tilt the lens module over the eld
of view to obtain the correct coverage area.

Switch 3: Off (Down) Figure 12

Switch 3: On (Up) Figure 13

Switch 2: Off (Down)
Switch 1: Off (Down)

Switch 2: On (Up)
Switch 1: Off (Down)

Switch 2: Off (Down)
Switch 1: On (Up)

Switch 2: On (Up)
Switch 1: On (Up)

Figure 14

Figure 15

Figure 16

Figure 17

Detection Area Programmable between 5 & 20

Coverage 90° detection angle, 20m x 20m

Adjustment 180° pan + 90° tilt

Fresnel Lens 10 zones for each Pyro pair, which

Customised optics Double silicon shielded quad

Outputs Silent solid state magnetically

Tamper Switches Front and rear tamper switches;

Pulse Count 1 -2

Power Input 9 - 15V dc

Current 8mA (12V nominal)

Operating Temp. -20°C to +55°C

Housing High Impact ABS

Protection Rating IP55

Dimensions 84 x 106 x 72mm

Mounting Height Variable - optimum height 3 metres

CE Mark

metres

coverage max

can be masked with curtain sliders

ans special masking tape (supplied)

elements eliminates 50,000 lux of
white light

immune

N/OPEN

Volt free relay signal contact

No.1

24V AC/DC @50mA with an integral

25Ώ resistor

N/CLOSED

Volt free relay signal contact

No.2

24V AC/DC @ 50mA with an integral

25Ώ resistor

Alarm 5 seconds

Tamper

T

Volt free, normally closed switch
output 12VDc @ 25mA

case open and removal from wall

Conformal coated electronics for

increased stability

-2-

1 2

3 4

5 6

7 8

9 10

-3-

Led On

11 12

Led Off Pulse Count 1

13 14

Pulse Count 2 Range 5 Metres

15 16

17

Range 10 Metres Range 15 Metres

Range 20 Metres

-3-

ENGINEER NOTES

ENGINEER NOTES

Technical: 01706 363990
Sales: 01706 363998
Fax: [phone]
Email: [e-mail]

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