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Lights Turn On for Unknown
Reasons

1. Housepets can  trigger the sensor.
Check sensor aiming to reduce 
nuisance triggering.
2. The sensor may turn on during voltage
surges. Reset by turning power off for
at least 10 seconds
3. A possible source of “mysterious”
sensor activations is the sensor receiv-
ing strong local radio signals. Check for 
nearby CB, Ham, VHF radio transmit-
ters or Cellular telephones, the sensor
will not be permanently impaired by
these signals.
4. Check all the Solutions mentioned
under “Lights Turn On and Off”.

Lights Do Not Turn Off

1. Make sure there is no motion 
in the room for at least 15 minutes.
Stay completely out of the protection
pattern to avoid activating the unit.

2. Check the room for possible sources
of infrared energy that are within the view
of the sensor. Look for air conditioners,
heaters, fans, concentrated or reflected
lights, moving equipment or machinery
with heat venting fans (computers,
copiers, etc.) Move the offending infrared
source or mask the sensor lens facing
that direction to avoid detection.
Reducing sensitivity will also help.

Lights Do Not Turn On

1. Make sure there is no obstruction
between sensor and area of activity.

2. Check that the bulbs and fixtures
work. Check that the wiring exactly
matches the wiring diagram.3. Check
that power is on.
4. If the red LED blinks but the lights
do not turn on, insert bypass key all
the way into its slot. If the light switch-
es on, the sensor is defective.
5. Increase sensitivity control to maximum.

Troubleshooting

LOS2400H: Hallway Sensor

Application & Mounting Notes

The narrow end of the LOS2400H
must be mounted in the direction
shown in the diagram below.

The sensor is more sensitive to move-
ment ACROSS its pattern than if a
person walks directly toward the sensor.
Crossing zones is best and the
installer should keep this in mind
when using any passive infrared 
technology.

The closer the movement is to the
sensor, the SMALLER the movement
is needed to trigger the sensor.  The
opposite is also true….if you are far
away from the sensor it will take a
LARGER movement to trigger the
sensors.

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Your LOS2400 will be replaced or
repaired, at our option, if it proves to be
defective in workmanship or materials
within one year from the date of origi-
nal purchase.

For repair or replacement, return 
the product freight prepaid and insured
to the address below. The LOS2400
should be packed carefully. Please
include your sales receipt and a
description of the problem.

If your unit is out of warranty or the
damage is unrelated to the original
manufacture, return your unit directly to
us with a check for $20.00 (made out
to RAB Lighting). We will repair or
replace your unit.

Under no circumstances shall we 
be liable for any incidental or
consequential damages arising out of
or in connection with the use or perfor-
mance of this product or other indirect
damages with respect to loss of prop-
erty or revenue or cost of installation,
removal or re-installation. This warranty
gives you specific legal rights and you
may also have other rights which vary
from state to state.

Limited Warranty

Tech Help Line

Fax Back          Website

e-mail

888 RAB-1000

888 RAB-1236   www.rabweb.com   [email protected] 

170 Ludlow Avenue, Northvale, NJ 07647 USA

Over 30 warehouses nationwide.

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Crosswalk Detection Pattern

Random Detection Pattern

Max. 16’

Max. 16’

LOS2400H

LOS2400H

LOS2400H

Max. 80’

Max. 80’

Coverage Pattern

16’ x 80’ (sensor should ideally be
mounted at 9’ - 11’ for maximum 
coverage)

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Summary of Contents for LOS2400

Page 1: ... mounting height the maximum coverage is 2000 square feet At a 20 foot mounting height the maximum coverage is 2500 square feet The detection pattern covers 360 degrees from the sensor location in the following pattern Detection Pattern How much energy cost can be saved Wattage Controlled by Sensor 1200W 2400W 4500W 25 150 300 560 50 300 600 1120 75 450 900 1685 Saving based on of time space is un...

Page 2: ...ove sensor to eliminate detection through doorway Basic Wiring Diagram Caution TURN OFF ALL POWER BY REMOVING THE POWER FUSE OR TURNING OFF THE CIRCUIT BREAKER FOR YOUR SAFETY AND TO PREVENT DAMAGE TO THE UNIT Please read this entire Installation Manual before proceeding All wiring should comply with local electrical codes and requires a quali fied electrician Make sure the total lighting load con...

Page 3: ...is being activated by HVAC or other infrared sources other than people reducing the sensitivity may help Masking The Lens If the sensor s location gives it a view of other rooms or hallways lights will be turned on when movement is detected in these adjacent areas The sensor s detection zone may be restricted by covering a portion of the lens with the masking elements pro vided Make sure the senso...

Page 4: ...iagram below The sensor is more sensitive to move ment ACROSS its pattern than if a person walks directly toward the sensor Crossing zones is best and the installer should keep this in mind when using any passive infrared technology The closer the movement is to the sensor the SMALLER the movement is needed to trigger the sensor The opposite is also true if you are far away from the sensor it will...

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