RS 743-072 User manual

General
The RS PIR floodlight is an outdoor security and courtesy lighting
system. It uses advanced passive infra-red technology to detect
heat radiation of moving human bodies and animals within a
sensing zone of approximately 15 metres. At night, upon
detection, the floodlight will illuminate and the tungsten halogen
lamp will remain on for a period which can be adjusted between 5
seconds and 18 minutes.
Selecting a Location
The floodlight should be mounted in a position such that the sensor
is pointing ACROSS the area to be covered. To obtain maximum
coverage distance, the minimum mounting height is 2.5 metres.
The unit can, however, be mounted at any height between 2.5 and
6 metres. The detection patterns show the coverage area of the
sensor installed at 2.5 metres above the ground.
The higher the unit is mounted (a maximum of 6 metres above the
ground), the larger you can make the detection area.
It is important to understand that any movement ACROSS the field
is easier to read than movement towards or away from the sensor.
Therefore, position the detector where movement is more likely to
occur from side to side across the field.
The sensor detects moving objects which radiate heat, such as
human bodies and animals. You must be careful not to confuse
the sensor by having heating or cooling units, or any heat
producing objects working in the detection area. Reflective
surfaces or swaying trees in the detection area also cause a
different temperature from the background and may falsely trigger
the unit.
The detection range of the sensor may vary according to the
temperature and climatic conditions. Caution is advised when
installing the unit near public thoroughfares.
Installation
Caution:
Isolate mains supply before any work is performed.
1. Unscrew mounting backplate.
2. Mount wallplate with two screws provided onto wall.
3. Connect wires as shown in Figure 2.
4. Replace mounting plate and switch mains supply on.
5. Aim the floodlight to the required area.
6. Tighten the setting screw.
7. Loosen the motion detector elbow and centre the lens on the
area to be covered. Ensure that the head is pointing down.
8. Tighten the elbow.
Adjustments
Time
This dial allows you to adjust the length of time the lights stay on
after any motion is detected. All the way counter-clockwise is
about five seconds. All the way clockwise is about eighteen
minutes.
150W Passive Infra-Red Floodlight
Stock No. 743-072
A. Tungsten Halogen
Floodlight
B. Mounting Backplate
C. Wallplate
(2 Mounting Screws
and 2 Wall Inserts
Provided)
D. Setting Screw
E. Adjustments
F. Motion Detector
G.Lens
Halogen
Flood-
light
Blue N
Brown L
Green/
Yellow
E
Terminal Block
Sensor Screw Connection
to Floodlight
220-240V a.c.
50Hz Mains
Figure 1
AB
D
E
F
G
CFigure 2
Top View
110¡
Side View
2.5m
3m 15m
Less
Sensitive
More
Sensitive
ADJUST
TIME DAYLIGHT
+
-
Figure 3
Control Panel

Daylight
This motion detector has a built-in photoelectric sensor, the
purpose of which is to keep the motion detector from turning on the
lights during the day.
If the dial is turned all the way counter-clockwise, the photocell is
not in operation and the lights will come on any time motion is
detected-even in daylight. Fully clockwise and the lights will only
come on in full darkness.
Final Adjustments For Your Location
Note: After the power is first turned on, allow about two minutes
for the unit to stabilize before setting the controls.
When the power is on and the controls are set as shown in
Figure 3, have someone stand in the middle of the area in which
you want motion detected. (This can be done day or night).
Have them move slightly. (Moving their arms up and down or
walking slowly across the field of view should be enough).
Step 1 - To adjust how long the lights stay on after motion is
detected, turn the TIME dial clockwise. Fully clockwise is about 18
minutes. Fully counter-clockwise is about 5 seconds.
To test the setting, have the helper move to turn on the lights, then
have them stand motionless, or walk out of the motion detector's
field of view.
Step 2 - You may now turn the DAYLIGHT dial to the mid-range.
Or, if adjusting the unit at the time of day when you would normally
like the unit to begin triggering, rotate the dial fully clockwise then
have the helper move in the field of view. Slowly rotate the
DAYLIGHT dial counter-clockwise until the lights come on.
The motion detector is now adjusted for normal operation.
Operation
As adjusted above, the motion detector is now adjusted for normal
operation.
To have the lights on constantly using the wall switch or circuit
breaker, flip the power to the light off and then back on in less than
two seconds. This will disable the motion detector and the
photoelectric sensor. The lights will now stay on day and night.
To return the unit to normal (automatic) operation, turn the wall
switch off for at least 3 seconds and on again. This will reactivate
the motion detector and the photoelectric sensor. (After this
procedure wait two minutes or so for the circuit to stabilize).
Any time power to the unit has been off for more than a few
minutes (for example, a power break or accidentally turning off the
wall switch) and is restored, the unit will come on in the normal,
automatic motion detection mode. (Again allow two minutes for the
circuitry to stabilize).
Troubleshooting Guide
Do not disassemble the motion detector head.
There are no consumer serviceable parts inside. Disassembling
the head will damage the unit. Solve the trouble with the following
action. For best results, try the solutions in the sequence
suggested.
Lights Do Not Come On
1. Is there power to the motion detector? (Has the circuit breaker
tripped? Is the wall switch off?).
2. Is lamp in proper position to make contact?
3. Is lamp correct wattage? Lamp must be larger than 40 watts
and not more than 150 watts.
4. Is lamp burned out? (Try a new lamp).
5. Is the wiring to the unit loose or incorrect?
Warning: Before proceeding, ensure that the mains supply is
isolated. Inspect all wire connections. (See the installation
wiring instructions). Tighten any loose wiring. Return power to
the unit. Wait two minutes for circuitry to stabilize. Unit should
now be working correctly.
6. If after completing steps 1 through 5 your unit is still not
working, consult an electrician.
Lights Come On Randomly
1. Is the sensor "seeing" heat from the lamp. Move lamp away
from and above the motion detector head.
2. Tilt the head lower. It may be reading too distant objects.
3. Is the unit reading "false" targets? Stand under your motion
detector and carefully look at the motion detector's field of view
at about 15m (coverage will vary with position of the motion
detector's head) and about 110 degrees across. (110 degrees
is a little more than one quarter of a circle). Look for any
sources of changing temperature; dryer vents, grills, heating
ducts, patio lights or torches, a pool of water, a metal roof or
shed, windows of heated or air-conditioned rooms, neighbour's
driveways, street traffic, nearby large dogs, etc. Any of these
might trigger the unit.
Be sure the motion detector is mounted securely. Vibrations from
the wind or other sources can move the lens causing the unit to
accidentally trigger.
Are the lights coming on in the daytime? Check the setting of
the DAYLIGHT dial. If it is too far counter-clockwise the unit's
photo-cell will be defeated. Turn the dial clockwise. See "Final
Adjustments For Your Location".
Is the TIME dial setting wrong? At its maximum setting, the
lamps will stay on for about 18 minutes, only five seconds at
minimum. See "Final Adjustments For Your Location".
Lights Will Not Turn Off
1. The motion detector is probably in the manual override
mode. To correct this flip the power to the unit off and back
on (after 3 seconds). Allow two minutes for circuitry to
stabilize. Unit should now work properly. If the above
procedure did not work, then do the following: Turn off
power to the unit for at least five minutes. Turn power back
on. Allow two minutes for circuitry to stabilize.
2. If lights come on after motion is detected and then stay on,
the head may be seeing heat from the lit lamp. Move the
lamp away from the head.
3. Is the lamp 40 watts or more? It must be for proper
operation.
4. In summer, large moths can be attracted by the lights.
Their bodies, heated by the lights and so close to the lens,
can re-trigger the Motion Detector when the lights go out.
5. Is the TIME dial set correctly? At its maximum setting, the
lights will stay on for about 18 minutes.
RS Components Issued March 1993 9307