Photocell
1 WATT, 24VDC
Cat. No. ODCØP
INSTALLATION INSTRUCTIONS
DESCRIPTION
The Cat. No. ODCØP Photocell responds to ambient light levels in the viewing area and
provides an output that is representative of the ambient light intensity. The output is an
analog voltage proportionate to the ambient light level.
The ambient light measured is the light from any light source in the visible spectrum. The
Photocell does not distinguish between natural sunlight and artificial light. It contains a
sensor which is color and spatially corrected to provide a true representation of changes
in lighting levels which a person perceives.
The Photocell operates off of low-voltage power. The input voltage needed is 24VDC with
approximately 10mA current consumption. The photocell measures ambient light between
0 and 70 footcandles, and the output voltage has a range between 0 and 10VDC. An
output of 0VDC corresponds to 0 footcandles, and an output of 10VDC corresponds to 70
footcandles. This sensor can be used to enable Daylight Harvesting, using specific Leviton
Power Packs.
The sensor measures the ambient light that actually falls upon it within a 60
°
cone
extending downward from the sensor (refer to Figure 1). This is the light that gets
reflected to the ceiling from the walls, floor and furniture. NOTE: Care must be taken when
choosing the mounting location. It is recommended that the sensor be mounted directly
above the work space, such as the desk, conference table or computer terminal.
Mounting location is important because the ambient light level will be different at different
points in the room, depending on the location of the windows, lighting fixtures, wall colors,
etc. The ambient light at the doorway can be much less than that at the windows, corners
of the room, or especially on the ceiling. Therefore, it is important to measure the ambient
light level over the workplace.
Cat. No. ODCØP Photocell is compatible with specific Leviton Power Packs. The Photocell
is to be mounted in an appropriate ceiling location and is connected to the Power Pack
through low-voltage wires.
INSTALLATION INSTRUCTIONS
Before installing, carefully read the following instructions to determine the ceiling location
of the Photocell. The ideal location should provide a full view of the area to be illuminated.
WARNING:
TO BE INSTALLED AND/OR USED IN ACCORDANCE WITH
APPROPRIATE ELECTRICAL CODES AND REGULATIONS.
WARNING:
IF YOU ARE NOT SURE ABOUT ANY PART OF THESE INSTRUCTIONS,
CONSULT A QUALIFIED ELECTRICIAN.
CAUTION:
USE THIS DEVICE ONLY WITH COPPER OR COPPER CLAD WIRE. WITH
ALUMINUM WIRE USE ONLY DEVICES MARKED CO/ALR OR CU/AL.
TO INSTALL:
1.
WARNING:
TO AVOID FIRE, SHOCK OR DEATH; TURN OFF POWER AT CIRCUIT
BREAKER OR FUSE AND TEST THAT POWER IS OFF BEFORE WIRING!
2. The Photocell can either be fastened onto the ceiling surface, flush mounted into the
ceiling, or installed in a 4" (10.2 cm) round or octagonal outlet box, depending on
ceiling material and local codes.
3A. TO FASTEN THE PHOTOCELL ONTO THE CEILING SURFACE: Attach the outer
shell provided to the ceiling at the desired location using two (2) #4 screws and
appropriate anchor hardware, where necessary. For concealed wiring, access to the
space above the ceiling is required, as well as a hole in the ceiling above the Photocell
to bring the wires from the Leviton Power Pack.
LIMITED 5 YEAR WARRANTY AND EXCLUSIONS
Leviton warrants to the original consumer purchaser and not
for the benefit of anyone else that this product at the time of its
sale by Leviton is free of defects in materials and workmanship
under normal and proper use for five years from the purchase
date. Leviton’s only obligation is to correct such defects by repair
or replacement, at its option, if within such five year period the
product is returned prepaid, with proof of purchase date, and a
description of the problem to Leviton Manufacturing Co., Inc.,
Att: Quality Assurance Department, 59-25 Little Neck
Parkway, Little Neck, New York 11362-2591. This warranty
excludes and there is disclaimed liability for labor for removal
of this product or reinstallation. This warranty is void if this
product is installed improperly or in an improper environment,
overloaded, misused, opened, abused, or altered in any manner,
or is not used under normal operating conditions or not in
accordance with any labels or instructions. There are no other
or implied warranties of any kind, including merchantability and
fitness for a particular purpose, but if any implied warranty is
required by the applicable jurisdiction, the duration of any such
implied warranty, including merchantability and fitness for a
particular purpose, is limited to five years. Leviton is not liable
for incidental, indirect, special, or consequential damages,
including without limitation, damage to, or loss of use of, any
equipment, lost sales or profits or delay or failure to perform
this warranty obligation. The remedies provided herein are the
exclusive remedies under this warranty, whether based on
contract, tort or otherwise.
DI-000-ODC0P-00A-Pilot
For Technical Assistance Call:
1-800-824-3005 (U.S.A. Only)
www.leviton.com
DI-000-ODC0P-00A-Pilot
DI-000-ODC0P-00A-Pilot1
9/21/01, 4:36 PM
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