Extron electronics OCS 100C Setup Manual

Occupancy Sensor OCS 100C • Setup Guide
The OCS 100C is a ceiling mounted occupancy sensor that incorporates ultrasonic (US) and passive infrared (PIR) into a dual
technology 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 100C has a 24 VDC power input, ground/common connection, normally open/closed relay, photocell, and occupancy
output connections.

Front Panel Features

Ultrasonic
Sensors
Ultrasonic
Sensors
Figure 1.
OCS 100C Front Panel Features
Control
DIP Switches (A) A)
A
Red Infrared
Sensitivity Dial
DIP Switches (A) A)
1
2
3
4
A
Red Infrared
ON
Sensitivity Dial
Black 1
2
Timer Dial al
3
4
ON
Black
Timer Dial al
Figure 2.
OCS 100C Controls
The settings for DIP Switches B3 (timer adjust) and B4
(sensitivity adjust) can be set to:
• Automatic mode — The sensors automatically adjust for
changes in usage and seasons, eliminating the need for
manual adjustments and improving system performance.
• Manual mode — The user sets the parameters of the
sensors using the following dials.
NOTE:
• The black timer dial is inactive when the B3 timer adjust DIP Switch is in Automatic mode.
• The red infrared sensitivity dial and green ultrasonic range dial are inactive when the B4 sensitivity adjust DIP Switch is
set to Automatic mode.
Green LED
(status indicator)
Infrared/Photocell
Lens
Green LED
Retainer Ring
(status indicator)
Infrared/Photocell
Lens
Green LED Retainer Ring
(status indicator)
Green LED
(status indicator)
DIP DIP Switches (B)
Green Ultrasonic
B
DIP DIP Switches (B)
Range Dial
1
2
3
4 Green Ultrasonic
B
Range Dial
ON
1
2
3
4
Blue Photocell Dial
ON
Blue Photocell Dial
• Ultrasonic sensors (4) — Detect movement in the room, based
on ultrasonic sound waves.
• Green LED status indicators (2) — Flash when the ultrasonic
sensors detect occupancy.
• Infrared/Photocell lens — Diffracts the incoming light and
directs the light to the infrared/photocell sensor. The infrared/
photocell sensor, controls and DIP switches are located behind
the lens.
Red LED status indicator — Located behind the
•
infrared lens, this LED flashes when the infrared sensor
detects occupancy.
• Retainer Ring — Holds the optional IR mask in place. Remove
to access all controls and DIP switches.
• DIP Switches A —
A OPERATION
1 Not used
2 Threshold
3 LED indicators
4 Automatic adjust reset
*Default
DIP Switches B —
•
B OPERATION
1 Strong airflow
compensator
2 Over doorway mount
3 Timer adjust
4 Sensitivity adjust
*Default
OFF ON
Not used*
Not used
Auto threshold High
adjustment* sensitivity
(low turn on
threshold)
LEDs enabled*
LEDs
disabled
Toggle to reset (Default: OFF)
OFF ON
Disabled*
Enabled
Disabled*
Enabled
Automatic Manual*
Automatic Manual*
1