Dwyer OSC-200 - Manual (Page 3)

The walk test is used to quickly ensure correct system
wiring, proper functioning of the output, and proper
location of the sensor.
• Apply power to the unit and allow 25 seconds for the
sensor to warm up. The LED will blink (long blink followed
by short) during warm up.
The LED will blink rapidly if the sensor is improperly wired.
• When the LED stops blinking, the sensor has had
adequate time to warm up and is now in standby mode
(Standby mode is discussed in more detail in the
Operation Mode Section.)
• Walk across the detection zone. The LED will stay lit
and the output will be activated during occupancy
detection. Adjust accordingly.
ON/OFF DELAY SETTINGS
To adjust the On/Off Delay time intervals or adjust sensor
for “Walk Test”
1. Remove the cover from the sensor.
2. Refer back to Figure 3 to locate the On/Off Delay pins
and jumpers on the circuit board.
3. Gently remove the jumpers and reinsert into the
desired pins according to the table below.
4. Replace cover and screw.
NOTICE
ON
OFF
A (Walk Test)
0 Sec.
10 Sec. B
10 Sec.
1 Min. C
30 Sec.
5 Min. D
1 Min.
10 Min. E
5 Min.
20 Min. F
10 Min.
30 Min.
OPERATION MODES
The OSC-200 Omnidirectional Occupancy Sensor utilizes
several operation modes to eliminate false readings and
conserve energy.
A.
STANDBY
DETECTION
B.
RELAY ON
DELAY
C. 1-MINUITE
WAITING NO
DETECTION
DETECTION
D.
RELAY OFF
DELAY
(RELAY OUTPUT)
Figure 4
Standby Mode
Before any movement is being sensed, the sensor is in
standby mode.
When the sensor detects occupancy, the LED light turns
on and the sensor switches to Relay On Delay Mode.
Relay On Delay Mode
This adjustable mode allows the user to choose the time
delay before the unit reports that a space is occupied.
The Relay On Delay Mode allows for energy conservation
by bypassing short-term or faulty occupancies. It is
followed by a secondary one minute warning delay.
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