wattstopper DT-200 User manual

DT-200
version 3
Dual Technology • Low Voltage
Occupancy Sensor
with Light Level, Isolated Relay and Manual On features
SPECIFICATIONS
Voltage ............................................................................. 18-28VDC/VAC
Current Consumption ..................................................................... 25mA
Power Supply .................................................WattStopper Power Packs
Isolated Relay Rating..................................................... 1A @30VDC/VAC
Operating Temperature ................................... 32° to 131°F (0° to 55°C)
Light Level One-Step Adjustment ...................................10FC to 200FC)
Time Delay Adjustment...................................30 seconds to 30 minutes
Walk-Through Mode ..................3 minutes if no activity after 30 sec.
Test Mode...................................................5 sec. or DIP switch reset
PIR Coverage (Typical) ................................................................ 1000 ft2
Sensitivity Adjustment....................High or Low (DIP switch setting)
Ultrasonic Coverage (Typical) .............................................. 800-1200 ft2
Sensitivity Adjustment.................... Minimum to Maximum (trimpot)
Frequency ................................................................................. 40kHz
Installation Instructions
Santa Clara, CA 95050

UNIT DESCRIPTION
The WattStopper DT-200 Dual Technology occupancy sensors combine advanced
passive infrared (PIR) and ultrasonic technologies into one unit. The combination
of these technologies helps to eliminate false triggering problems even in difficult
applications.
The DT-200 turns lighting systems on and off based on occupancy and ambient light
levels.
The DT-200 offers numerous operating modes that can be combined to create the
ideal custom control. The sensors can be configured to turn lighting on, and hold it
on as long as either or both technologies detect occupancy. After no movement is
detected for the duration of the time delay (30 seconds to 30 minutes) the lights are
switched off. A “walk-through” mode can turn lights off after only 3 minutes, if no
activity is detected after 30 seconds of an occupancy detection.
The DT-200 operates on 24VDC supplied by WattStopper Power Packs. DT-200
sensors also have an isolated relay with Normally Open and Normally Closed
contacts for interfacing with HVAC or EMS.
COVERAGE PATTERN
The DT-200 provides an eliptical coverage pattern. The coverage shown represents
walking motion at a mounting height of 10 feet. For building spaces with lower
levels of activity or with obstacles and barriers, coverage size may decrease.
10ft
Dense Wide Angle Lens (Standard)
7ft15ft25ft 55ft0
PIR
coverage
55ft.
Ultrasonic
coverage
38ft.
Dense Wide Angle Lens
up to 2000 sq ft for walking motion
up to 1000 sq ft for desktop motion
(Drawings not to scale.)
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PLACEMENT GUIDELINES
Depending upon obstacles such as furniture or partitions, the area of coverage may
be less or more than the sensing distances shown in the coverage pattern. This
must be considered when planning the number of sensors and their placement. It is
also recommended to place the sensor 4 to 6 feet away from air supply ducts.
The DT-200 is designed for a ceiling height of about 8-10 feet. Mounting above or
below this range will significantly affect the coverage patterns. As a general rule,
each occupant should be able to clearly view the sensor.
Masking the PIR Lens: Opaque adhesive tape is supplied so that sections of the PIR
lens can be masked. This restricts the sensor’s view and allows you to eliminate PIR
coverage in unwanted areas such as hallways outside of the desired coverage area.
Since masking removes bands of coverage, remember to take this into account
when troubleshooting coverage problems. The Ultrasonic coverage cannot be
masked, but you can adjust its sensitivity to reduce the coverage area.
30 ft.
30 ft.
Sensor
One sensor, conference room
(Drawings not to scale.)
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WIRING DIRECTIONS
Each WattStopper BZ series power pack can supply power for 3 DT-200 sensors.
When using more sensors than this, multiple power packs are required.
Refer to the wiring diagram on the next page for the following procedures:
Connect the LOW VOLTAGE:
• RED wire (+24VDC) from power pack to the red wire on the sensor.
• BLACK wire (Return) from power pack to the black wire on the sensor.
Wiring a single lighting load controlled by occupancy–connect:
• BLUE wire from power pack to the blue wire on the sensor.
To add a Momentary manual switch such as the LVSW Momentary Toggle Switch, to
the above applications–connect:
• Wire from one side of switch to the grey wire on sensor.
• Wire from other side of switch to the red wire on sensor.
Wiring the Isolated Relay: (The Isolated Relay is rated for 1A@30VAC/VDC)
Connect the wires necessary to the application that requires this output:
• Relay Common (must be used for proper operation) is the green wire
• N.O. (Normally Open)–Closed when occupancy is detected, is the orange wire
• N.C. (Normally Closed)–Open when occupancy is detected, is the brown wire
Sensor Function DT-200 ver.3 DT-200 ver.2 BZ-50 PP
+24VDC in RED Violet RED
Common to Power Pack BLACK Grey BLACK
Control Output BLUE Yellow BLUE
Isolated Relay Common GREEN Red
Isolated Relay N.O. ORANGE Orange
Isolated Relay N.C. BROWN Brown
Momentary Switch GREY Green
Light Level Control Output N/A Blue
CAUTION
TURN POWER OFF AT THE CIRCUIT BREAKER BEFORE
INSTALLING POWER PACKS OR SENSORS.
Call 800.879.8585 for Technical Support

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Load #1
Load #2
(Optional)
Blue
Blue (Control Out)
Red (+24V)
Black (Common)
Low Voltage
Class 2
Line
Voltage
Line
Neutral Feed Through
Power Pack
Black
Red
#1 #2
Line Voltage
Switches
Ceiling
Brown (Normally Closed Contact)
Orange (Normally Open Contact)
Green (Common)
Isolated
Relay
Outputs
Grey (Man Switch)
DT-200v3
Occupancy
Sensor
* Grey wire on sensor is only used when
connecting a manual momentary switch.
*
LVSW
Load
Blue
Control Out
Black
+24V
Low Voltage
Class 2 Line Voltage
Line
Neutral Feed Through
Power Pack
Man.Switch
Red
Common Man.Switch
+24V
Jumper
Back
of
LVSW
Ceiling
DT-200v3
Occupancy
Sensor
Manual-On wiring with low voltage momentary switch

The DT-200 sensors can be mounted to
walls or ceilings with the supplied
swivel bracket, and the supplied
junction box cover plate if
necessary (see figure B). Mounting
at fixture height is most effective.
Ceiling: It is best to leave
approximately six inches between
the sensor and the wall so that the
Tightening Screw can be easily accessed.
Orient the Base Bracket’s Half-Circle
Notch in the direction that the sensor will point.
Wall: Orient the Base Bracket’s Half-Circle Notch, up.
1. Mount the Base Bracket to the mounting surface with screws.
2. At the center of the Base Bracket, drill a hole in the ceiling or
wall (unless mounting to a junction box) large enough to thread
the sensor’s wires through.
3. Guide the sensor’s wires into the Base Bracket and through the
hole in the ceiling or wall.
4. Connect the sensor to the Base Bracket by angling the Post Bracket so that it
is in line with the half circle notch, as illustrated in figure A. Push the ball into
the Base Bracket opening until it snaps into place, being careful not to pinch
the wires. The brackets can be easily connected or disconnected using this
orientation.
5. Insert the Tightening Screw and
Nut into the Base Bracket as
illustrated.
6. Use the Reference Surface
Angle to adjust the sensor
for optimum coverage. When
mounted at ten feet, the Refer-
ence Surface Angle should
be parallel to the wall or the
vertical (see figure C). (As the
mounting height decreases, the
sensor will be tilted up slightly;
as the mounting height increases,
the sensor will be tilted down
slightly).
7. Tighten the Tightening Screw.
Junction Box
with Mud-Ring
Junction Box
Cover Plate
Ceiling
Swivel Bracket
Predrilled
Holes
MOUNTING THE SENSOR
Junction box cover plate installation
WattStopper recommends using a 3.0”
mudring with a 4” octagonal box
Half-Circle
Notch
Base
Bracket
Reference
Surface
Angle Post
Bracket
Nut
Tightening
Screw
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Sensor Angle Adjustment
While watching the LEDs for flashes (Red LED indicates activation from the
PIR sensor; Green LED indicates activation from the ultrasonic sensor), have
a person walk back and forth at the far end of the space. Increase or decrease
mounting angle as needed until the desired coverage is achieved.
Tighten the Tightening Screw to hold this position.
Wall Mount
PARALLEL
to WALL
at 10 foot
mounting
height
Reference Surface
Angle
Ceiling Mount
PARALLEL
to VERTICAL
at 10 foot
mounting
height
Reference Surface
Angle
Service
To override all sensor functions, set the Ultrasonic Sensitivity trimpot to the fully
counterclockwise (Service) position. This bypasses the occupancy control functions
of the sensor, but still allows the lights to be manually controlled with a light switch,
if one is installed.
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LIGHT LEVEL FEATURE
The Light Level feature holds lights off upon initial occupancy if adequate ambient
light exists. It will not turn the lights off if they are on. The default setting is for
maximum, meaning that even the brightest ambient light will not hold the lights
off.
Notes on Functionality
• Avoid mounting the sensor close to lighting fixtures
• Adjust during daylight hours when ambient light in the area is at desired
level.
• Light Level cannot be enabled while Test Mode is active. Either wait for Test
Mode to expire or select any of the other Time Delay settings before enabling
the Light Level feature.
• PIR occupancy indicator LED may still respond when lights are being held
off. LED will also flash periodically to indicate the sensor has Light Level
enabled.
• Light Level settings are only saved in the event of a power loss. Disabling
Light Level and then reenabling it will not return it to previous settings.
• If Test Mode is enabled after Light Level has been set, Light Level
functionality will cease to function throughout the duration of Test Mode.
When Test Mode period expires, the Light Level functionality will resume,
even if the Dip Switches remain set to Test Mode.
Setting Light Level
1. Make sure Test Mode is not active.
2. Open the Front Cover and locate the LIght Level pusbbutton. See Sensor
Adjustment.
3. Press the Light Level button. Do not exceed 5 seconds.* The sensor enters
setup mode, as indicated by the rapidly flashing LEDs. The LEDs will flash
throughout the setup process. Occupancy indications from the LEDs is
disabled during setup.
4. Move away from the sensor to avoid interference with light level detection.
The sensor measures the light level for a 10 second period, then averages
the readings and automatically sets the level that will be used as the new
setting. The sensor will hold lights off when the ambient light exceeds this
setting.
5. When the LEDs stop flashing, replace the Front Cover
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*Disabling Light Level
Pressing the pushbutton for 5 seconds or more resets the light to default
(maximum).
Press and hold the Light Level button for 5 seconds or until the detection LEDs
turn ON and then OFF. The LEDs flash rapidly for 10 seconds after the setting has
changed.
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SENSOR ADJUSTMENT
The sensors are factory preset to allow for quick installation in most applications.
Verification of proper wiring or coverage, or customizing the sensor’s settings can
be done using the following procedures. To make adjustments, open the Front Cover
with a small screwdriver.
There is a 30 second warm-up period
when power is rst applied.
Before making adjustments, make
sure the office furniture is installed,
lighting circuits are turned on, and the
HVAC systems are in the overridden/
on position. VAV systems should be
set to their highest airflow. Set the
Logic Configuration and Time Delay
to the desired settings. See “Logic
Configuration Chart”, next page.
To Test Occupancy Sensors
1. Ensure the Time Delay is set
for Test Mode* using the “Test
Mode/20 minutes” setting. (DIP
switches 1, 2, & 3 are OFF).
2. Ensure that the Light Level is at default (maximum). Press and hold the push-
button for 5 seconds or until the Green LED flashes rapidly. Wait 10 seconds
for the flashing to stop.
3. Ensure that the Ultrasonic Sensitivity trimpot is set to about 70%, clockwise.
4. Remain still. The red and green LEDs should not flash. The lights should turn
off after 5 seconds. (If not, see “Troubleshooting.”)
5. Move around within the coverage area. The lights should come on. Adjust the
Ultrasonic Sensitivity as necessary to provide the desired coverage (Green
LED indicates activation from the ultrasonic sensor).
When testing and adjustment is complete, reset DIP Switches and Light Level to the
desired settings, and replace the cover on the sensor.
*Test Mode is a temporary state that starts when you first set the sensor’s DIP
switches for the “Test Mode/20 minutes” (switches 1, 2, 3 OFF). If you need to invoke
the Test Mode and the DIP switches are already set for Test Mode/20 minutes,
toggle DIP switch 1 ON then back to the OFF position. This provides a 10 minute test
period. During the test period, the Time Delay is only 5 seconds.
PIR Lens
Photocell
Ultrasonic
Transducer
Cones
PIR
Activity LED
Ultrasonic
Activity LEDFront Cover
Adjustments under the front cover
Press for Auto set
Hold 5 sec to disable
Light Level
Button
Min Max
Sensitivity
DIP
Switch
See
Back
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Logic Configuration Chart
DIP SWITCH SETTING
Time Delay: Switches 1, 2, 3
The sensor will hold the lights ON as long as occupancy
is detected. The time delay countdown starts when no
motion is detected. After no motion is detected for the
length of the time delay, the sensor will turn the lights
OFF.
Walk-through: Switch 4
Walk-through mode 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 selected time delay
applies.
PIR Sensitivity: switch 5
• Minimum forces a reduced detection range for
the PIR.
• Maximum causes the DT-200 to monitor the
controlled environment and automatically select
the maximum sensitivity that will provide reliable
operation without false detection. This setting is
constantly updated.
Occupancy Logic: Switches: 6, 7, 8
The DT-200 has 8 logic configurations for occupancy
triggers, set with DIP switches 6, 7 & 8. Determine the
appropriate Occupancy Logic Option using the Trigger
matrix, then set the DIP switches accordingly.
Initial Occupancy: The method that activates a change
from “Standby” (area unoccupied and loads are OFF) to
“Occupied” (area occupied and loads are ON).
• Both requires detection by PIR and Ultrasonic.
• Either requires detection by only one technology.
• PIR requires detection by the PIR.
• Man. requires activation of the Manual
Switch. (See Manual ON functions” for further
information.)
Maintain Occupancy: The method indicating that the
area is still occupied and the lights should remain ON.
Re-trigger: After the time delay elapses and the lights
turn OFF, detection by the selected technology within
the number of seconds indicated turns the lights back
ON.
Standard
Option 2
Option 3
Option 1
Trigger
Option 4
Option 5
Initial
Occupancy
Maintain
Occupancy
Re-trigger
(seconds
duration)
Occupancy Logic
Both
Both PIR
Both(5)
Either(5)
Either
EitherEither
Either
Either(5)
Either(5)
Either
PIR
PIR
PIR(5)
Either(30)
Either(5)
Either
= ON
= OFF
678
Standard
Option 2
Option 3
Option 1
Option 4
Option 5
Option 6
Option 7
Standard
Standard
Switch#
Occupancy
Logic
= Factory Setting
5 minutes
10 minutes
15 minutes
20 minutes
25 minutes
30 minutes
30 seconds
123
Time Delay

Test Mode/20 min
5
Minimum
PIR Sensitivity
Walk-Through
Enabled
Disabled
4
Maximum
PIR
PIR




Settings
Man.
Man. PIR Both(30)
Feature
Option 6
Option 7
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MANUAL ON FUNCTION
The Manual ON function is facilitated by installing a momentary switch such as Watt
Stopper LVSW Momentary Toggle Switch. The switch connects to the sensor’s Manual
(Man.) Switch and +24VDC terminals as shown in the wiring diagram. Each time the
switch is pressed, the load changes state. The sensor’s operation as related to the
manually operated switch is determined by DIP switch settings for Occupancy Logic.
Manual Mode (Trigger Option 6 or 7): In this mode, the switch is required to turn on
the load. The sensor keeps the load on, based on occupant activity. After the time
delay ends, if there is no movement detected within the 30 second re-trigger period,
the load turns OFF and the manual switch must be used to turn ON the load.
Automatic Mode (any Trigger Option except 6 or 7): These options use occupancy
triggers as well as switch activation to turn the load ON. A manual switch provides
the following additional functionality:
• The load can be turned ON using the manual switch and it stays on according to
the occupancy logic setting. The time delay operates as programmed. When the
load turns OFF due to lack of occupancy detection, it can be turned ON again by
occupancy detection or the switch.
• Activating the manual switch while the load is ON turns the load OFF.
▸When the load is turned OFF manually, as long as the sensor continues to
detect occupancy the load stays OFF. The length of the time delay after the
last occupancy detection, the lights stay off and the sensor reverts to the
automatic-on mode.
▸When the load is turned OFF manually, pressing the switch again turns the
load ON and the sensor reverts to the automatic-on mode.
▸Once returning to automatic-on mode, either the switch or occupancy
detection can turn the load ON.
OVERLOAD PROTECTION
The occupancy sensor has a built in overload protection function that will
automatically turn off the control output when the load current exceeds 200mA.
The sensor LEDs will then blink rapidly (~ 10Hz) to provide a visual indication of an
overload condition. When the load current is corrected or returns to normal, the
control output will turn back on.
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TROUBLESHOOTING
For any unexpected operation
1. Check DIP switch settings.
2. Make sure the switches are set according to the defined settings in the DIP
Switch Setting chart.
Lights do not turn on when entering the room.
Neither LED Flashes
1. Check that the circuit breaker has been turned back on.
2. Check all sensor and power pack wire connections.
3. Check for 24VDC input to the sensor between the red and black low voltage
wires.
• If 24VDC is present, replace the sensor.
• If 24VDC is not present, check the high voltage connections to the power
pack.
• If high voltage connections are good and high voltage is present, replace
the power pack.
Red LED does not ash
1. When power is initially applied to the sensor, there is a warm-up period of 30
to 60 seconds before the LED becomes active.
2. Make sure PIR sensitivity is set to 100% (DIP switch #5 is in the “off” position).
Green LED does not ash
Ultrasonic sensitivity setting may need to be increased. Turn adjustment trimpot
clockwise until the LED begins to flash when movement occurs.
Green LED is on steady
Check ultrasonic sensitivity trimpot. Fully counterclockwise position is the override
for the sensor. Turn trimpot clockwise until LED flashes only when movement
occurs in the desired coverage area.
CAUTION
TURN POWER OFF AT THE CIRCUIT BREAKER
BEFORE WORKING WITH OR NEAR HIGH VOLTAGE.
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Red and Green LEDs ash
1. Check all sensor and power pack connections.
2. Check if Light Level is enabled.
• If occupancy indicator LEDs blink together every few seconds, sensor is
using Light Level feature.
• If Light Level functionality is not desired, press and hold for 5 seconds to
return sensor to the default setting (maximum).
3. Check for 24VDC at the power pack blue and black wire connections to sensor
while sensor is active.
• If there is no voltage, replace the sensor.
• If there is voltage, check for 24VDC between the blue and black wire at the
power pack. If 24VDC is present and the relay is not closing, replace it.
• If 24VDC is not present, check for a break in the low voltage wiring.
4. If LEDs are flashing rapidly (~10Hz), an overload condition exists. When this
is corrected, the sensor will return to normal operation. Check the blue wire
connection. If necessary, replace the power pack.
Lights do not turn off automatically.
Green LED ashes
Reduce ultrasonic sensitivity by turning adjustment pot counter-clockwise until it
only flashes when movement occurs.
Red LED ashes briey and Green LED does not ash
Check to see if you have used the Manual Switch connection. Do not connect
anything to this terminal if you are not using a low voltage momentary switch
between the sensor and power pack.
Red LED randomly ashes
Set PIR sensitivity to minimum by turning DIP switch 5 to the “on” position.
Lights do not turn off
1. Check all sensor and power pack wire connections.
2. Disconnect power pack blue wire.
• If lights do not turn off, check power pack wiring. Replace the power pack
if necessary.
• If lights turn off, the problem may be the sensor or wiring between the
sensor and power pack.
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3. Reconnect the blue wire.
• Turn sensitivity and time delay to minimum, and allow the sensor to time
out.
• If lights turn off, the sensor is working properly – adjust sensitivity and time
delay for the sensor.
• If lights do not turn off, check the wiring between the sensor and power
pack.
• If wiring is correct, replace the sensor.
Visit our website for FAQs: www.wattstopper.com

WARRANTY INFORMATION
WattStopper warranties its products to be free of defects in materials and
workmanship for a period of five (5) years. There are no obligations or liabilities
on the part of WattStopper for consequential damages arising out of or in
connection with the use or performance of this product or other indirect damages
with respect to loss of property, revenue, or profit, or cost of removal, installation
or reinstallation.
ORDERING INFORMATION
Catalog # Description
DT-200 Dual Technology Occupancy Sensor, Low Voltage
w/Isolated Relay
DT-205 Dual Technology Occupancy Sensor, Low Voltage
BZ-50, 150 Power Pack: 120/277VAC, 50/60Hz, 225mA with relay
connected, 20A ballast/incandescent
B347D-P Power Pack: 347VAC, 60Hz, 150mA. 15A ballast
S120/277/347E-P Auxiliary Relay Pack: 120/277VAC, 60Hz, 20A Ballast
347VAC, 60Hz, 15A Ballast
17479r3 9/2014
Please
Recycle
2800 De La Cruz Boulevard, Santa Clara, CA 95050
800.879.8585 • www.wattstopper.com
Please
Recycle
2800 De La Cruz Boulevard, Santa Clara, CA 95050
800.879.8585 • www.wattstopper.com