DT-725D DUAL TEC
®
Motion Sensor Installation Instructions
TT
Step 1
Separate the sensor housings and remove
Printed Circuit Board (PCB).
Use a small screwdriver to unfasten the hous-
ing latch and separate the sensor housings.
P
ush outward on the PCB latch to lift the PCB
out of the housing.
Step 3
W
ire the sensor
.
Observing the proper polarity
, wire the unit as
sh
own in the illustration below
, use 1.02 to 0.64
m
m
(18 to 22 A
WG) wire.
Step 2
Mount the sensor
.
Break out the mounting/wiring knockouts and
mount the sensor in an appropriate location.
An ideal location meets the following objectives:
•
Allows a clear line-of
-sight to all areas to
protect.
•
Does not directly face windows.
•
A
voids close proximity to moving machinery
,
fluorescent lights, and heating/cooling
sources.
NOTE:
maximum range is obtained at a
mounting height of 2.3 m.
Knockout
Housing
latch
PCB latch
FRONT HOUSING
REAR HOUSING AND PCB
Terminal Block (TB1)
PCB
LED
(DS1)
LED Enable
(Cut or remove
LED enable jumper
J1 to disable LED)
Step 4
W
alk
-test the sensor
.
After returning the PCB to the rear housing,
reassemble the sensor housing. Apply
power to the sensor and begin walk
-test
when the red LED is off
.
W
alk across the detection area at the ranges
to be covered. The red LED should indicate
an alarm condition after 2 to 4 normal steps.
When there is no motion in the detection area
the LED should be off
.
TB2
Alarm
500 mA
30 VDC
Power
25 mA
7.5-16 VDC
TB1
Tamper
50 mA
24 VDC
TB2
Step 5
Adjust the microwave range.
A. Turn the microwave range thumbwheel (R1)
counterclockwise
to decrease the micro-
wave range to
minimum
.
(Range is factory set
at maximum.)
B. As you perform the walk-test, gradually turn the
thumbwheel clockwise until the desired range
is obtained.
PIR range is determined by the mounting height
and angle.
NOTE: It is important to adjust the microwave range to fit
room size and characteristics. Reflective surfaces (i.e.
metal shelving, concrete floors, glass, etc.) increase sen-
sitivity.