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D-300431 DUET-AM C/O Installer Guide
3. INSTALLATION
3.1 Installation Tips
To minimize false alarms:
Do not aim at heat sources
Mount on solid, stable surfaces
Do not expose to air drafts
Do not install outdoors
Prevent direct sunlight from
reaching the detector
Keep wiring away from electrical
power cables
Do not install behind partitions
In addition, a few important rules must be observed while selecting a
mounting location:
A.
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 motion in the next room or moving traffic along
the outer side of the wall will cause the MW sensor to trip.
B.
Large reflecting objects (especially metals) in the coverage area
can distort the microwave sensor's coverage pattern.
C.
If two DUET-AM C/O 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.
D.
Do not install the DUET-AM C/O in places where one of the two
sensor circuits alarms constantly or intermittently, due to
environmental interference.
E. DUET-AM C/O users are advised to mount the unit in
locations where inadvertent approach to less than 1 m (3 ft)
from the detector is unlikely to occur.
F.
The unit shall be installed so that expected intrusion is
perpendicular to the detection beams within the area of coverage.
3.2 Mounting
A.
Remove the front cover as shown in Figure 3.
IMPORTANT:
When re-mounting the cover, remember to fasten
the screw well - this will force the tamper switch actuator upon the
tamper switch and will press it fully in.
B.
Loosen the vertical adjustment screw, slide the PCB up and
remove it via the “keyhole” (see Figure 4).
C.
Put the PCB aside until required again.
D.
Refer to Figure 5 and punch out the mounting knockouts at
the rear of the base (for surface mounting) or at the angled
sides (for corner mounting).
E.
Punch out any one of the wiring knockouts shown in Figure 5.
Figure 3.
Cover Removal
F.
Hold the base against the wall at the selected installation location,
mark the points for drilling and drill the holes. Insert the plastic
dowels (supplied) if necessary.
G.
Pass the wires through the wiring inlets into the base and attach
the base to the wall using the screws (supplied).
H.
Return the PCB to its place within the base.
I.
Proceed to wire the terminal block as instructed in Para. 3.3.
ALARM TROUBLE EOL
TAMP
TST
12V
FAR
MID
NEAR
DUET AM
MIN
MAX
ON
1
2
3
4
TERMINAL
BLOCK
PIR
SENSOR
MODE
SELECTOR
TAMPER SWITCH (HIDDEN
UNDER ACTUATOR)
DUAL
COLOR
LED
KEYHOLE
SHAPED
SLOT
MW
MODULE
VERTICAL
ADJUST.
SCALE
MW LEVEL
CONTROL
Figure 4.
PCB Layout
SURFACE
MOUNTING
KNOCKOUTS
CORNER
MOUNTING
KNOCKOUTS
WIRING
KNOCKOUTS
CORNER
MOUNTING
KNOCKOUTS
POINT
TAMPER SWITCH
ACTUATOR
Figure 5.
Base after PCB Removal
3.3 Wiring
Refer to the following illustrations and wire up the terminal block,
according to DIP switch 3 position.
