GJD D-TECT 50 AM Quick Start Manual

D-TECT 50 AM
GJD359 Anti-Masking 50m Quad PIR Detector

PACKAGE CONTENTS

• 1 x D-TECT 50 AM
• 1 x Drilling template for fixing holes
• 3 x 31.75mm wall plugs
• 3 x 31.75mm screws
• 1 x Tamper cup
• 2 x Tamper Feet
• 1 x Installation manual
• 1 x 5m wide Fresnel lens (Lens 2, Fig.12)

INTRODUCTION

The D-TECT 50 AM is an outdoor motion detector and
alarm trigger that uses two independent passive infra-red
detectors, both of which must trigger to cause the detector
to signal an alarm. Utilising quad PIR technology, the
D-TECT 50 AM delivers precise, reliable presence
detection and will alarm if tampered by masking.
The integral dual axis tilt sensor allows 180° of pan and
45° tilt. This increases the speed of the outdoor installation
and provides incredibly accurate aiming of the detection
pattern. The electronics module is acrylic coated for
additional component stability. It is encased in a vandal-
resistant high impact zinc alloy housing with a UV stabilised
translucent front cover ensuring the sensor is impervious
to and unaffected by weather conditions. Additionally the
combination of precision electronics, digital white light filter
and double shielding eliminates false alarms from the sun
and other visible light sources.
The D-TECT 50 AM design gives a neat and professional
appearance with no visible indication of the orientation of
the detector head, and totally hides the wiring.

QUICK INSTALLATION GUIDE

Apply supply voltage to the unit, the amber led flashes 10
times, then the blue LED flashes 3 times.
The detector takes approximately 2-3 minutes to settle. The
walk test led is factory set to OFF. Pressing the program
button once will enable the walk test LED for 5 minutes.
THE FRONT COVER MUST BE FITTED WHEN WALK
TESTING
FACTORY SETTINGS ARE:
1 RANGE 50 METRES
2 PULSE COUNT 1
3 LED OFF
When enabled the D-TECT 50 AM has two LED indicators.
Blue - Alarm output, both PIRs and microwave detection
Amber - Anti-Mask detection

ANTI-MASKING CIRCUIT

The cover must be fitted before applying power to the
detector.
During the first 10 seconds after power has been
connected, the amber LED flashes and the anti-masking
circuit starts to self calibrate. The amber LED indicates
when the detector is covered, but the relay contacts do not
operate until the unit has been covered for 60 seconds.

SEQUENCE FOR CORRECT OPERATION

1. Make connections and replace cover.
2. Apply 12 volts power. Amber LED Flashes 10 times -
self calibration completed.
3. Cover detector for 60 seconds. When anti-mask
detection is continuous for 60 seconds the normally
closed relay will open until anti-mask detection is
cleared.

MOUNTING THE UNIT

During installation the electronics must be protected
against water, as trapped moisture can affect or damage
the unit.
1. Using the template provided drill the wall to accept
the two fixing screws, the cable entry and the tamper
cup (if used). See fig 1 and 2.
Note: We recommend using the tamper cup on uneven wall
surfaces.
2. Remove the cover assembly by loosening the locking
screw. The cover hinges from the top and lifts out of
the location slot. See fig 3.
3. Feed standard 8 core alarm cable into the cable
entry; bare the wires and connect to the terminal
block as shown in fig 7. Screw the unit to the wall
ensuring that the tamper pin is correctly located
and that the tamper microswitch is closed. See fig
4 and 5. 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 fig 2.
4. When the detector has been aligned to suit the
installation, replace the front cover and lock as
shown. See fig 6.
1