Dwyer Instruments OSC-200 User manual

Bulletin H-21-OSC
The Model OSC-200 Omnidirectional Occupancy
Sensor automatically controls a HVAC ventilation system.
A spherical Fresnel lens provides a 360° detection zone
with the use of infrared technology. The integrated dual
delay processor saves energy by eliminating false
activation due to short-term occupancies. The Model
OSC-200 is designed to be ceiling mounted.
INSTALLATION
Do not install where the detector is exposed to direct
sunlight or directly above strong sources of heat.
Do not install in areas that have any obstruction
(plants, large pieces of furniture, curtains, etc.) which
may block the detection.
DWYER INSTRUMENTS, INC. Phone: [phone] www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [email protected]
SPECIFICATIONS
Infrared Sensor: Dual element.
Range: 34.4 ft (10.5 m) Diameter at 13.8 ft (4.2 m) mount
height.
Detectable Speed: 0.33 to 9.8 ft/sec (0.1 to 3.0 m/sec).
Control Output Rating: SPDT, 0.2A at 30 VDC.
Ambient Operating Temperature: -4 to 140°F (-20 to 60°C).
Power Consumption: Standby: 5 mA, Operating: 18 mA.
Mounting Height: 7.9 to 13.8 ft (2.4 to 4.2 m).
Power Requirements: 22 to 26 VAC/DC.
Weight: 2.4 oz (68 g).
Agency Approvals: CE.
Specifications - Installation and Operating Instructions
Model OSC-200 Omnidirectional Occupancy Sensor
Ø4-11/32
[Ø110.33]
1-47/64
[44.05]
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MOUNTING
The OSC-200 is designed to be recess or surface
mounted to a ceiling.
Step 1: Install Base Unit
• Determine the location of the sensor according to the
detection pattern shown in Figure 1a.
• Remove the cover screw to open the sensor housing
as shown in Figure 1b.
• Remove the circuit board by bending the tab outward
(Figure 1b.)
• Screw the base of the sensor housing to the ceiling
through the knockout holes (Figure 1b.)
Figure 1a
Location and Installation of the Sensor
Figure 1b
Location and Installation of the Sensor
TOP VIEW
SIDE VIEW
360°
TERMINAL
BLOCKS
OFF DELAY
INFRARED SENSOR
(DON’T TOUCH!!)
ON DELAY
CORNER
KNOCKOUT
COVER LOCKING
SCREW
FRESNEL LENS
TAB
KNOCKOUT HOLES
FOR MOUNTING
Step 2: Wiring
• Feed the cable through one of the corner knockout
holes (Figure 1b.)
• Reinsert the circuit board.
• Turn the screw for each terminal counterclockwise
(Figure 1b.)
• Connect the cable to the corresponding terminals as
shown in Figure 2.
NC COM NO
FAN COIL CONTROLLER
24 VAC/DC
24V
ON/OFF INPUT
Figure 2
Wiring the Sensor
Step 3: Walk Test
Before beginning test, make certain that the On and Off
Delay jumpers (located on the circuit board) are
connected in the “A” positions as shown in Figure 3. If
they are not, follow the procedure under the section titled
On/Off Delay Settings to rearrange the jumpers to location
“A.” Replace the sensor housing and tighten screw.
TERMINAL
BLOCKS
OFF DELAY
INFRARED SENSOR
(DON’T TOUCH!!)
COVER LOCKING
SCREW
FRESNEL LENS
KNOCKOUT HOLES
FOR MOUNTING
ON DELAY
CORNER
KNOCKOUT
TAB
Figure 3
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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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©Copyright 2010 Dwyer Instruments, Inc. Printed in U.S.A. 2/10 FR# R6-443398-00
DWYER INSTRUMENTS, INC. Phone: [phone] www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [email protected]
STORAGE AND CLEANING
The sensor lens is the most delicate part of the
Occupancy Sensor. The lens should be kept clean at all
times, care should be taken when cleaning the lens using
only a soft cloth or cotton swab with water or medical
alcohol. Allow the lens to fully dry before using the sensor.
The sensor should be installed or stored in an area of
room temperature between -4 and 140ºF (-20 to 60ºC).
MAINTENANCE
After final installation of the unit, no routine maintenance
is required. The Model OSC-200 is not field serviceable
and should be returned if repair is needed (field repair
should not be attempted and may void warranty). Be sure
to include a brief description of the problem plus any
relevant application notes. Contact customer service to
receive a return goods authorization number before
shipping.
1-Minute Warning Mode
During this mode, the sensor searches for any movement
for one minute after the Relay On Delay Mode.
If occupancy is detected at any point within that one
minute, the output device is activated and the sensor
enters Relay Off Delay Mode.
If occupancy is not detected in that one-minute time
frame, the sensor enters back into standby mode.
Relay Off Delay Mode
During this mode, the sensor’s output is activated for a
preset period of time.
Once this preset time interval is up, the output device
powers off. However, the relay off delay timer will reset
with each motion detection.
This Relay Off Delay Mode allows for energy conservation
by eliminating unnecessary running of the HVAC system.
Occupancy detection may be affected if the unit is
operated within radio frequency electromagnetic field
strength of approximately 3 volts per meter, but the
performance of the instrument will not be permanently
affected.
NOTICE
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