Extron electronics OCS 100W Setup Manual
Occupancy Sensor OCS 100W • Setup Guide
Ultrasonic
Sensors
Green LED
(status indicator)
Red LED
(status indicator)
Infrared Sensor and Lens
Removable Front Cover
DIP Switches (A)
The OCS 100W is a wall-mounted occupancy sensor that incorporates ultrasonic (US) and passive infrared (PIR) into a dualtechnology sensor. The US sensor emits ultrasonic sound waves into an area and measures the speed of their return to detect
the presence of people. Frequency changes are caused by the movement of people, which is detected by the US waves. The PIR
sensor detects the presence of people based on the difference between the heat generated by moving people versus the ambient
room temperature.
The OCS 100W has a 24 VDC power input, ground/common connection, normally open/closed relay, photocell, and occupancy
output connections.
Front Panel Features
• Ultrasonic Sensors — Detect movement in the room, based on
ultrasonic waves.
Green LED
(status indicator)
Ultrasonic
Sensors
Infrared Sensor and Lens
Red LED
(status indicator)
Removable Front Cover
Figure 1. OCS 100W Front Panel Features
• Green LED (status indicator) — Flashes when the ultrasonic
sensors detect occupancy.
• Infrared Sensor and Lens — Diffracts the incoming light and
directs the light to the infrared sensor.
• Red LED (status indicator) — Flashes when the infrared sensor
detects occupancy.
• Removable Front Cover — Conceals all controls and DIP
switches.
Control
• DIP Switches (A) —
DIP Switches (B)
1
2
AB
3
4
1
2
3
4
A OPERATION OFF ON
1 Not used Not used* Not used
2 Not used Not used* Not used
3 LED indicator LED enabled* LED disabled
Timer Test Button
Red Dial
Green Dial
Blue Dial
Notch
4 Automatic adjust
reset
*Default
Toggle to reset (Default: OFF)
Figure 2. OCS 100W Controls
• DIP Switches (B) —
B OPERATION OFF ON
8 minutes:
OFF*
4 minutes:
OFF
15 minutes: ON30 minutes:
ON
1 Timer Setting
(B1 and B2 switches
must be set together)
2 OFF * ON OFF ON
3 Timer adjust Automatic Manual*
4 Sensitivity adjust Automatic Manual*
*Default
• Blue Timer Test Button —
• Push in to enable 8 second timer mode. This will last for 1 hour. Then automatically resets to the dip switch settings.
• Push and hold until the red LED ashes to return the 8 second timer to the dip switch timer settings.
• Red Infrared Sensitivity Dial — Adjust this dial to increase or decrease infrared sensitivity.
• Turn counter clockwise (CCW) to decrease sensitivity.
• Turn clockwise (CW) to increase sensitivity.
• Factory default is 75%.
1
Occupancy Sensor OCS 100W • Setup Guide (Continued)
ner Mount
Sensor Placement
32'
Mounting
US Major Motion
IR Major Motion
• Green Ultrasonic Range Dial (see figure2 on the previous page) — Adjust this dial to increase or decrease ultrasonic
sensitivity.
• Turn counter clockwise (CCW) to decrease sensitivity.
• Turn clockwise (CW) to increase sensitivity.
• Factory default is 50%.
• Blue Photocell Dial — Photocell prevents the sensor from triggering on when the area is adequately lit with natural light and
when motion is detected. The sensor must be mounted directly over an area that is representative of the average, natural
room lighting. Before setting the photocell control, wait until the natural light is brightest (optional). Adjust this dial to increase
or decrease photocell sensitivity.
• Turn counter clockwise to decrease photocell sensitivity.
• Turn Clockwise to increase photocell sensitivity.
• Factory default is 100% (full clockwise).
• Full CW — Photocell is disabled.
• Range — 10 to 1000 LUX
Sensor Placement and Installation Options
When placing the sensor in a room, be sure the sensor is not aimed out through a door. The sensor can detect hallway trafc,
causing false triggers. PIR sensors trigger in response to changes in the amount of IR arriving from any of their segments of view
within a direct line of sight from the sensor. US sensors trigger in response to changes in the pitch of reected ultrasonic waves,
caused by movement within the space.
NOTE: See Troubleshooting on page5 if you experience false triggers.
Wrong
60˚
Correct
Figure 3. Sensor Placement and Installation Diagrams
Hallway
Sensor Coverage
23'
20'
40'
80˚
Ceiling Mount Wall Mount Top View
Cor
Installation OptionsRotation
10'
Height
23'
32'
US Minor Motion
Figure 4. Sensor Coverage Diagrams
2
Sensor Coverage
IR Minor Motion
20' Minor Motion Coverage
40' Major Coverage
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