Legrand OS300S User Manual

OS300S

120/277VAC

PIR Wall Switch

SPECIFICATIONS

Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . .120/277VAC, 50/60Hz

Load Limits:

@120VAC . . . . . . . . . . . . . . . . . . .0-800W tungsten or ballast

@277VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0-1200W ballast

Load Type Compatibility . . . . . . . . . .incandescent, fluorescent,

magnetic or electronic ballast

Time Delay Adjustment . . . . . . . . . . . . . . . . . . .5 to 30 minutes,

user-selectable or automatic

Sensitivity Adjustment . . . . . . . . . . . . . . . . . . . . . . . .High or 50%

Alerts . . . . . . . . . . . . . . . .Selectable Audible and/or Light Flash

Horsepower Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/6 HP

Installation Instructions

US Patents: 4,787,722

Syracuse, NY 13221

4,874,962

800.223.4185

UNIT DESCRIPTION AND OPERATION

The OS300S is a passive infrared wall switch that turns lighting ON and OFF
based on occupancy and ambient light levels. SmartSet™ technology allows
the sensor to be installed without any adjustments. This technology allows the
sensor to automatically adjust to the usage patterns in the space. Alternate
operating modes, selected by DIP switch settings, can be combined to create the
ideal custom control.

Turning The Lights On

Auto On Mode The OS300S will turn lights ON and OFF automatically

Manual On Mode Occupants must turn ON the lights by pressing the

Button Override The lights can be turned ON or OFF by pressing the

Time Delays

The OS300S time delay holds the lights ON until no motion is detected for a time
period of 5 seconds to 30 minutes, at which point it turns the lights OFF. The
sensor can automatically select the time delay, or the user can choose a fixed
delay.

SmartSet™ Time Records typical occupancy patterns. Using this history
Delays (which is constantly updated), it chooses an optimal

Fixed Time Delay DIP switch selections provide fixed time delays of 5,

based on occupancy. If the lights are turned OFF
manually, automatic-ON operation will not be
reenabled until no motion is detected for five minutes.
This feature prevents lights from accidentally being
turned ON after they were deliberately turned OFF.

Auto-ON/OFF button. The sensor will then keep the
lights ON until no motion is detected for the selected
time delay period. There is a 30 second reset delay.
If motion is detected during this time, the sensor will
turn the lights back ON automatically. After the reset
delay time has elapsed, the Auto-ON/OFF button must
be pressed to turn the lights ON.

Auto ON/OFF button, regardless of the operating
mode.

time delay from 7 minutes (when space is usually
vacant) up to 30 minutes (for times that show heavy
usage). SmartSet behavior starts immediately, and
is refined continually as history is collected.

10, 15, 20, 25 or 30 minutes.

Call 800.223.4185 for Technical Support

Walk-Through Use for rooms that have frequent walk-through traffic
Mode (ie. room that accepts mail deliveries). The OS300S

Test Mode To test the sensor, a short time delay of 5 seconds is

turns the lights OFF three minutes after the area is
initially occupied, if no motion is detected after the
first 30 seconds. If motion continues beyond the first
30 seconds, the set time delay applies.

set as the default (SmartSet/Test). Test Mode cancels
automatically after five minutes, or if a fixed time
delay is selected. To restart the Test Mode, change the
time delay switch setting to any fixed amount and then
return it to the SmartSet/Test setting.

Light Level Control

Light Level Control Lights are held OFF, even when the controlled area is
Enabled occupied, as long as the ambient light level is greater

than a chosen threshold level. The light level can be
set with the overhead lights ON or OFF.

Sensitivity Adjustment

The OS300S constantly monitors the controlled environment and automatically
adjusts to avoid common ambient conditions that can cause false detections,
while providing maximum coverage.

High Default setting. Suitable for most applications.

Low Reduces sensitivity by approximately 50%. Useful in

cases where the sensor is detecting movement outside
of the desired area (also consider masking the lens)
and where heat sources cause unnecessary activation.

Alerts

The OS300S can provide alerts as a warning before the lights turn OFF.

Light Flash Alert Lights will flash OFF for one second, one minute

Audible Alerts Sensor will “chirp” twice, at one minute and at

Dual Alerts When both Light Flash Alerts and Audible Alerts are

No Alerts No warning will be provided.

before they will be turned OFF by the sensor.

30 seconds before turn-OFF. A distinct alert will sound
10 seconds before the lights go OFF.

selected, the Audible Alert at one minute remaining
is replaced by the Light Flash Alert.

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