GJD MX2, Manual

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MX 20
GJD103 Quad PIR Movement Detector
-1-
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 filter 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. Configure programming switches as required referring to
instructions given later in this manual.
3. Apply supply voltage to the unit. The detection LED flashes
once.
4. Wait approximately 2 to 3 minutes to allow the detector to
settle
NOTE: The front cover must be fitted 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 fixing 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 fit 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 figure 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 fitted 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 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.
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
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
(see figure 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.
Configuration
Mounting
Height
(Metres)
Tilt (
°
)
Max.
Range
(Metres)
Reference
Multibeam
(Optimum)
3 10 20 Figure 3
Pet Immunity* 1.5 5 20 Figure 4&5