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OVERVIEW
The nCM PC Series On/Off Photocell sensor provides the industry’s most intelligent control of
lighting for daylight harvesting applications. Ideal for public spaces with windows like vestibules,
corridors, or bathrooms; the sensor works by monitoring daylight conditions in a room, then
controlling the lighting so as to insure that an adequate lighting level is maintained. The nCM PC
is used for on/off lighting control; turning off the lights when sufficient natural light is present and
turning them on when additional lighting is necessary. The nCM PC sensor can be used alone or
together with occupancy sensors. To add dimming control to the on/off switching provided by the
nCM PC, see the nCM ADC sensor.
FEATURES
• Full On/Off Switching Control Communicates w/ nLight Network
• Remotely Configurable/Upgradeable
• Self-calibrating Set-Point
• Push-Button Programmable
• 100 Hr Lamp Burn-in Timer
• Green LED Indicator
nCM PC
On/Off Photocell
SPECIFICATIONS
Size: 4.55” Dia. (11.56 cm) 1.55” Deep (3.94 cm)
Weight: 6 oz
Mounting:
Ceiling Tile Surface, 3.5” Octagon Box, Single Gang Handy Box
Color:
White
nLight Network Ports: 2 RJ-45
Power Consumption: < 2 mA
Wires:
None
Operating Temp: 14º to 160º F (-10º to 71º C)
Relative Humidity: 20 to 90% non-condensing
Warranty
Five-year limited warranty. Complete warranty terms located at:
www.acuitybrands.com/CustomerResources/Terms_and_conditions.aspx
Note: Actual performance may differ as a result of end-user environment and application.
Specifications subject to change without notice.
ORDERING INFORMATION
nCM PC
Example: nCM PC LT
Series
nCM PC
Dual Zone
On/Off Photocell
[blank]
DZ
None
Dual Zone
Temp/ Humidity
[blank] Standard
LT
Low temp
Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: 800.535.2465 www.acuitycontrols.com © 2014-2015 Acuity Brands Lighting, Inc. All rights reserved. 05/26/15
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WIRING (DO NOT WIRE HOT)
Note: Sensor power is provided via the CAT-5 connection.
BLK - 120 V
ORN - 277 V
nPP-16
CAT-5
LOAD
CAT-5
DEVICE SETTINGS
Several operational settings for the nCM PC are available:
•Automatic set-point calibration mode
•Photocell broadcast channel (1-16)
•100 hr burn-in timer mode (enable/disable)
•Photocell Mode Selection:
Stepped Dimming
Stepped Dimming w/ one pole always left on
Dual Zone Mode - Percentage offset between
zones
Fan Mode - Zone 2’s photocell control is
disabled
•Blink back set-point (in footcandles)
•10’s digit of set-point (0-200 fc)
•One’s digit of set-point (0-9 fc)
•Sunlight discount factor (1-8)
•Photocell broadcasting (enable/disable)
•Dual zone set-point offpoint % (110-200%)
•Photocell transistion off timer (45 sec to 25 min)
•Photocell transistion on timer (45 sec to 25 min)
nCM PC - TN-111-03
Acuity Brands | One Lithonia Way Conyers, GA 30012 Phone: 800.535.2465 www.acuitycontrols.com © 2014-2015 Acuity Brands Lighting, Inc. All rights reserved. 05/26/15
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