Transcript Slide 1
The NightLite Sensor
Introducing the NightLite Sensor
The Occupancy Sensor that is a Night Light!
Perfect for Hotel Bathrooms
Many people leave
light on all night
24/7 lighted pushbutton provides
enough light for 2 am
trip to bathroom
without having to turn
on bright overhead
lights!
If occupant wants to
turn on overhead lights,
the night light is the
On/Off switch.
Passive Infrared (PIR)
detection turns lights
off if no occupancy
NightLite Sensor (WSD-NL)
Technical Features
Passive Infrared (PIR) occupancy detection
provides coverage up to 10 feet for small hand
motions and 20 feet for walking motions
Draws 1/10 of a Watt at 120VAC (7-10 times less
than other night light devices
Can control lights and/or exhaust fans (1/4 HP
Motor load)
Patented either/or wiring for hot and load wires
makes installation simple (neutral & ground also
required)
No minimum load requirements
NightLite Sensor (WSD-NL)
Programmable Features
Device contains microcontroller “brain” that is
push-button programmable
Default operation is Auto On/Auto Off
Manual On is user selectable
Optional Reduced Turn-On Sensitivity Mode
(eliminates PIR reflection off glass
Switch can also be disabled
Off time delay is factory set to 60 minutes, but is
selectable up to from 15 minutes to 2 hours (in
15 min. increments)
NightLite Sensor (WSD-NL)
Physical Features
Mounts to standard switch box
Fits next to GFI receptacles
Vandal resistant lens
Conformally coated circuit board provides
corrosion protection from condensation caused
by high humidity (steam) in bathrooms
UL/CUL listed
5 Year Warranty
Made in the USA
How does a PIR Sensor Work?
Answer:
Uses Passive Infrared (PIR) detection to “See”
Sensor detects “Heat in Motion”
You look like a moving 60 Watt light bulb!
How does a PIR Sensor Work?
Two wafer thin Pyro-Electric elements are encapsulated and
positioned behind a Fresnel lens
Lens
Detector
Each lens segment generates a pair of collector beams
The distance behind the lens is called the “Focal Length”
The Focal Length determines the size of the beams
How does a PIR Sensor Work?
<<<<<<
When People Move they Enter
and Exit the Beams
The PIR Detector then “Sees”
Changes in Energy
Body Heat in “Motion” Turns
On the Sensor!
AUTO
How does a PIR Sensor Work?
When People Move they Enter
and Exit the Beams
The PIR Detector then “Sees”
Changes in Energy
Body Heat in “Motion” Turns
On the Sensor!
Bathroom Application Diagram
© 2013 Sensor Switch