Wattstopper DT-305 Manuel utilisateur

Specifications

Voltage ........................ 18-28VDC/VAC, half wave rectiﬁed AC

Current Consumption .....................................................25 mA

Power Supply ..................................WattStopper Power Packs

Operating Temperature..................... 32° to 131°F (0° to 55°C)

Time Delay Adjustment....................30 seconds to 30 minutes

Walk-Through Mode ...3 minutes if no activity after 30 sec.

Test Mode............................... 5 sec. upon DIP switch reset

PIR Coverage (Typical) .................................................. 1300 ft2

Sensitivity Adjustment ..........High or Low (DIP switch setting)

Ultrasonic Coverage (Typical) ....................................... 1300 ft2

Sensitivity Adjustment ..... Minimum to Maximum (trimpot)

Frequency .................................................................. 40kHz

UL & CUL Listed for use with WattStopper Power Packs

Installation Instructions

DT-305



Occupancy Sensor



U.S. Patent: 7,277,012

Santa Clara, CA 95050

UNIT DESCRIPTION

The WattStopper DT-305 360° 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-305 turns lighting systems on and off based on occupancy. The DT-305

provides 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 a user speciﬁed time (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-305 operates on 24V supplied by WattStopper Power Packs.



The DT-305 provides a 360° 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. The coverage

for PIR ONLY trigger mode varies with mount height. Refer to pattern below for

details. Ultrasonic coverage is roughly the same for 8-12 foot mount heights. Refer

to PIR and Ultrasonic trigger mode coverage for details.

Call 800.879.8585 for Technical Support

PIR Only Coverage

Side View





Depending upon obstacles such as furniture or room layout, 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 at least 4 to 6 feet away

from air supply vents.

Mount the sensor to the ceiling. The DT-305 is designed for a ceiling heights of

about 8-12 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.

 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.

 Position the sensor so that the maximum

coverage is achievable. Be sure that the sensor is not pointing out the door.

Top View

PIR

Coverage

Ultrasonic

Coverage

36 ft

(10.97m)

36 ft x 36 ft

(10.97m x 10.97m)

Drawings

not to scale,

representative

of PIR and

Ultrasonic Trigger

Mode major

motion coverage

8-12 foot Mounting Height

Call 800.879.8585 for Technical Support

Sensor

36'

If the space is larger than 30’ x 30’ it will be necessary to use more than one sensor

to ensure complete coverage.

36'

ltrason

verlap

Ultrasonic

Coverage

36 ft

(10.97m)

PIR

Coverage

36 ft

(10.97m)

Sensor

ltr

aso

Overlap





Each WattStopper BZ series

power pack can supply power for

5 DT-305 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 :

• REDwire(+24VDC)from

powerpacktothe+ terminal

on the sensor.

• BLACKwire(Return)from

power pack to  terminal

on the sensor.

• BLUEwirefrompowerpacktoControl Out terminal on sensor.

 such as the LVS-1 Momentary Toggle Switch, or RS2-3

Low Voltage Momentary Switch to the above application (see wiring diagram

“Manual-On wiring with low voltage momentary switch”) – connect:

• Wirefromonesideofswitchtothe+ terminal on sensor.

• Wirefromothersideofswitchtothe terminal on sensor.







Control Out.

Man. Switch

+24V

Common

DT-305

360°Dual Technology

Occupancy Sensor

U.S.Patents:

5,640,113

Patent Pending

PIR & 40kHz Ultrasonic

+24VDC/VAC

Connect to WattStopper

Class 2 Power Packs

For Indoor Use Only

02829r4

C US

LISTED

88T9

Appliance

Control

www.wattstopper.com

800.879.8585

Wiring



Call 800.879.8585 for Technical Support



• Careshouldbetakentoseparatehighvoltagepowerfromlowvoltage(Class2)

control wiring.

• Allconnectionstosensorarelowvoltage,Class2.

Load #1

Load #2

(Optional)

DT-305

Standard wiring with local off switch

Rear Housing

Depluggable

Terminal

Front Cover

Ceiling

Spring Clips (2)

Blue

Control Out

+24V

Common

Low Voltage

Class 2

Line

Voltage

Line

Neutral Feed Through

Power Pack

Black

Red

#1 #2

Line Voltage

Switches

White

Black

Red

Line Voltage

Wire Color Legend





LVS-1

Load

Rear Housing

Depluggable

Terminal

Front Cover

Ceiling

Spring Clips (2)

Blue

Control Out

Black

+24V

Low Voltage

Class 2 Line Voltage

Line

Neutral Feed Through

Power Pack

Man.Switch

Red

DT-305

Manual-On wiring with low voltage momentary switch

Common

For low voltage

momentary switch

use trigger option

6 or 7

Man.Switch

+ 24V

Jumper

Back

LVS-1

White

Black

Red

Line Voltage

Wire Color Legend



Call 800.879.8585 for Technical Support



Directly to Ceiling

1. Attach the plastic spring clips to

the edge of the sensor in the slots

provided.

2. Cut a 3.5” to 4” round hole in the

acoustic ceiling tile at the mounting

location. A 3.5” hole is recommended

for a secure ﬁt.

3. Pull the low voltage wire from the

power pack to the sensor through the

hole.

4. Connect the low voltage wires to

the appropriate terminals on the

sensor.

5. Push the sensor up through the hole until the Spring Clips hold the sensor

securely in place.

6. Snap the front cover onto the sensor.



1. Pull the low voltage wires from the

power pack into the J-Box through

the conduit knockout.

2. Connect the low voltage wires to

the appropriate terminals on the

sensor.

3. Loosen the appliance mounting

screws attached to the J-Box

4. Align the sensor in the J-Box so

that the mounting screws on the

box match the key holes on the

sensor’s rear housing.

5. Push the sensor up into the J-Box

and twist it so that the mounting

screws are seated in the keyhole slots.

6. Tighten the two screws to secure the sensor to the J-Box.

7. Snap the front cover onto the sensor.



Depluggable terminal

Rear

Housing

4" Octagonal J-Box

(at least 1.5" deep)

Front

Cover

Ceiling

Screws

Rear

housing

Front

cover

Ceiling

Spring clips (2)

Depluggable terminal











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

by pulling on the cover tab.



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.

To Test Occupancy Sensors

1. Ensure the Time Delay is set for  using the “Test Mode/20 minutes”

setting. (DIP switches 1, 2, & 3 are OFF).

2. Ensure that the Ultrasonic Sensitivity trimpot is set to about 70%, clockwise.

3. Remain still. The red and green LEDs should not ﬂash. The lights should turn off

after 5 seconds. (If not, see Troubleshooting.)

4. Move about 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 to the desired

settings, and replace the cover on the sensor.

  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  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.

Keyhole slots

(for mounting to

4" octagonal box)

Double gang

mudring

mounting holes

DIP switches

PIR lens

Ultrasonic sensitivity

trimpot

12345678

ECE

Ultrasonic

transducer

cones

Ultrasonic

activity

LED (Green)

PIR Activity

LED (Red)



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 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.



• Minimumforcesareduceddetectionrangeforthe

PIR.

• MaximumcausestheDT-305tomonitorthe

controlled environment and automatically select

the maximum sensitivity that will provide reliable

operation without false detection. This setting is

constantly updated.



The DT-305 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.

The method that activates a change

from “Standby” (area unoccupied and loads are OFF) to

“Occupied” (area occupied and loads are ON).

•  requires detection by PIR and Ultrasonic.

• Either requires detection by only one technology.

• PIR requires detection by the PIR.

•  requires activation of the Manual Switch. (See

Manual ON functions” for further information.)

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

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

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

Minimum

PIR Sensitivity

Walk-Through

Enabled

Disabled

Maximum

PIR



Settings

Man.

Man. PIR Both(30)

Feature

Option 6

Option 7



Call 800.879.8585 for Technical Support

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