IR-Tec LC-780 Series User manual

LC-780 series
PIR Light Control SenSwitch
Installation Instructions
INSTALLATION HINTS
 Avoid aiming the sensor head at direct or
reflective sunlight which could cause permanent
damage or false triggering.
 Avoid locating the SenSwitch in areas which
contain objects likely to produce a rapid
temperature change such as heating vents, air
conditioners dryer…etc.
 Avoid installing the SenSwitch nearby trees or
area where public/traffic may trigger unwanted
light.
 Select a location where the direction of movement
will be “across” the detection pattern for better
sensitivity. To obtain proper detection, mounting
height should be 1.8 ~ 2.4 meter for wall mount or
2.7 ~ 5.0 meter for ceiling mount.
Sensor head
Front cover Mounting base
CAUTION
Some local building codes may require installation
by a qualified electrician. Consult an electrician
about correct wiring.
The main power must be switched of before
installing.
INSTALLATION & WIRING
1. Remove front cover and sensor head from the
mounting base by releasing two fixing screws..
2. Apply the mounting guide sticker at the selected
position for drilling mounting holes. Insert dowels
and mount the base with mounting screws.
3. Lead the wires from power source and light
through passage hole on rubber gasket beneath
the base. Connect wires to correct terminals
according to following instruction for different
operation mode.
LC-780/780HD
L
N
power
load
: Live wire from power source
L
N: Neutral wire
: Live wire to load (light)
LC-780LV
" + " of 12 VDC
Load contact
Load contact
" - " of 12 VDC
Red
Black
Blue
White
A. AUTO
L
N
LN
Existing light
The above wiring enables SenSwitch to control the
light automatically by detecting the motion.
L
N
LN
New light
B. AUTO-MANUAL OVERRIDE
L
N
LN

The above wiring enables SenSwitch to control the
light automatically while the manual switch off. The
light will remain on if manual is on, regardless of any
motion or light level.
Note: It is vitally important to identify “live” and
“neutral” wires of power source and the existing
light. Reserve connection may cause
malfunction, permanent damage to SenSwitch.
TEST & ADJUSTMENTS
Note: Before testing, ensure the LUX trimmer is set at
right end ( ) and the TIME trimmer is set at
minimum position ( ).
1. Aim sensor head at desired detection area. Turn
on the main power and wait about 30 seconds for
sensor to warm up. Light will remain on during
warm up period.
2. Walk across the detection pattern at normal speed,
light will be switched on whenever the motion is
detected. Stop and wait for light off, repeat same
process until the whole coverage is identified.
3. After test completed and detection coverage
satisfied adjust LUX and TIME trimmers properly
according to individual requirement.
A. Range Adjustment
Maximum range is achieved when the sensor head
is in a horizontal position. This range can be
reduce by rotating the sensor head downward. The
180°detection pattern can also be reduced by
applying supplied masking material on the lens if
required. First, refer to the detection pattern
diagram to determine the segments to be mask.
Cut masking material as determined and apply it to
the corresponding area on lens. Range adjustment
features eliminate detection in area causing
unwanted triggering.
B. TIME Adjustment
TIME trimmer controls shut-off delay time after the
last motion is detected. Delay time ranges from 8
seconds (-) to 8 minutes (+).
C. LUX Adjustment
LUX trimmer determines the operation of
SenSwitch by sensing the ambient light level. It is
set originally at right end position ( ) for
convenience of test in daytime. After test
completed, adjust LUX trimmer to left end position
() will enable SenSwitch only operate at certain
darkness of the ambient environment to avoid
unnecessary lighting.
To set individual preferred darkness for SenSwitch
to operate, rotate the trimmer clockwise from left
end position real slowly when the ambient light
level is preferred, stop rotating once the light
comes on.
DETECTION PATTERN
SPECIFICATIONS
Detection method....... Passive Infrared (PIR)
Power supply ............. As rated on unit
Maximum load ........... LC-780 : 5A resistive
LC-780HD : 10A resistive
LC-780LV : 10A resistive
Detection angle.......... 180°wide
Detection range .........18 meter (60 ft) at 25°C
Mounting height ......... 1.8 ~ 2.4m for wall mount
2.7 ~ 5.0m for ceiling mount
Delay time.................. 8 seconds ~ 8 minutes (approx.)
Lux range................... 2 ~ 2000 lux (approx.)
Adjustable angle ........ 80°vertical
Protection rate ........... IP44
Fixed wire .................. LC-780 : 1.0 ~ 1.5 mm2
LC-780HD : 1.0 ~ 2.5 mm2V1.0
Specifications are subject to change without prior notice.

INTRODUCTION
Thank you for your purchasing IR-TEC Passive
Infrared Light Control SenSwitch. It is a motion sensor
for automatic light control applications. It applies the
advanced infrared sensing technology to control
lighting automatically by detecting human body motion.
It will turn on the light instantly when motion is detected
and turn off automatically after the delay time expires.
SenSwitch not only provide convenience and energy
saving, but also security as the unexpected, sudden
light is a well know, effective means to frighten the
unwanted intruder away.