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  • DT-355 Dual Technology Line Voltage Ceiling Sensor cutsheet.pdf · PROJECT LOCATION/TYPE. 800.879.8585. C ommer C ial o CCUP a NCY S e NS or S & Co N trol S. DT-355 Dual Technology
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PROJECT LOCATION/TYPE www.wattstopper.com 800.879.8585 COMMERCIAL OCCUPANCY SENSORS & CONTROLS DT-355 Dual Technology Line Voltage Ceiling Sensor • Advanced control logic based on RISC micro- controller provides: • Detection Signature Processing eliminates false triggers and provides immunity to RFI and EMI • Walk-through mode turns lights off 3 minutes after the area is initially occupied – ideal for brief visits such as mail delivery • Built-in light level sensor featuring simple, one-step setup WattStopper’s low profile DT-355 dual technology occupancy sensor combines the benefits of passive infrared (PIR) and ultrasonic technologies. The sensor mounts on the ceiling with a flat, unobtrusive appear- ance and provides 360 degrees of coverage. Auto Set Operation The DT-355 is line voltage and operates at 120, 277 or 347 VAC. The sensor turns lighting on when both PIR and ultrasonic technologies detect occupancy. PIR technology senses the difference between infrared energy from a human body in motion and the background space. Ultrasonic technology uses high frequency (40KHz) ultra- sound to sense motion within the space. Once lighting is on, detection by either technology holds lighting on. When no occupancy is detected for the length of the time delay, lighting turns off. The DT-355 can also be set so that only one technol- ogy is needed to trigger or both technologies are needed to hold lighting on. Description Product Overview Features • Ultrasonic diffusion technology spreads cover- age to a wider area (patent pending) • DIP switch simplifies sensor adjustments • LEDs indicate occupancy detection • Uses existing line voltage wiring and doesn’t require a power pack • Six occupancy logic options give users the ability to customize control to meet application needs • Qualifies for ARRA-funded public works projects The DT-355 requires no adjustment at installa- tion. Auto set continuously monitors the controlled space to identify usage patterns. Using this infor- mation, it automatically adjusts the time delay and sensitivity settings for optimal performance and energy efficiency. The sensor assigns short delays (as low as 5 minutes) for times when the space is usually vacant, and longer delays (up to 30 minutes) for busier times. Application WattStopper’s patented dual technology has the flexibility to work in a variety of applications, where one technology alone could encounter false trig- gers. Ideal applications include classrooms, open office spaces, large offices, and computer rooms. In addition, because the DT-355 can be mounted onto a variety of junction boxes, the sensor has the flexibility to be used in a wide range of spaces. The sensors eliminate the need for a power pack by using line voltage wiring. Terminal wiring for quick and easy installation Architecturally appealing low profile appearance Operates at 120, 277 or 347 VAC, 50/60 Hz Walk-through mode increases savings potential Auto set automatically selects optimal settings for each space Ultrasonic diffusers give more comprehensive coverage

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Page 1: DT-355 Dual Technology Line Voltage Ceiling Sensor cutsheet.pdf · PROJECT LOCATION/TYPE. 800.879.8585. C ommer C ial o CCUP a NCY S e NS or S & Co N trol S. DT-355 Dual Technology

PROJECT

LOCATION/TYPE

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DT-355 Dual Technology Line Voltage Ceiling Sensor

• AdvancedcontrollogicbasedonRISCmicro-controllerprovides:

• DetectionSignatureProcessingeliminatesfalsetriggersandprovidesimmunitytoRFIandEMI

• Walk-throughmodeturnslightsoff3minutesaftertheareaisinitiallyoccupied–idealforbriefvisitssuchasmaildelivery

• Built-inlightlevelsensorfeaturingsimple,one-stepsetup

WattStopper’slowprofileDT-355dualtechnologyoccupancysensorcombinesthebenefitsofpassiveinfrared(PIR)andultrasonictechnologies.Thesensormountsontheceilingwithaflat,unobtrusiveappear-anceandprovides360degreesofcoverage.

Auto Set

Operation

TheDT-355islinevoltageandoperatesat120,277or347VAC.ThesensorturnslightingonwhenbothPIRandultrasonictechnologiesdetectoccupancy.PIRtechnologysensesthedifferencebetweeninfraredenergyfromahumanbodyinmotionandthebackgroundspace.Ultrasonictechnologyuseshighfrequency(40KHz)ultra-soundtosensemotionwithinthespace.Oncelightingison,detectionbyeithertechnologyholdslightingon.Whennooccupancyisdetectedforthelengthofthetimedelay,lightingturnsoff.TheDT-355canalsobesetsothatonlyonetechnol-ogyisneededtotriggerorbothtechnologiesareneededtoholdlightingon.

DescriptionProduct Overview

Features • Ultrasonicdiffusiontechnologyspreadscover-agetoawiderarea(patentpending)

• DIPswitchsimplifiessensoradjustments

• LEDsindicateoccupancydetection

• Usesexistinglinevoltagewiringanddoesn’trequireapowerpack

• Sixoccupancylogicoptionsgiveuserstheabilitytocustomizecontroltomeetapplicationneeds

• QualifiesforARRA-fundedpublicworksprojects

TheDT-355requiresnoadjustmentatinstalla-tion.Autosetcontinuouslymonitorsthecontrolledspacetoidentifyusagepatterns.Usingthisinfor-mation,itautomaticallyadjuststhetimedelayandsensitivitysettingsforoptimalperformanceandenergyefficiency.Thesensorassignsshortdelays(aslowas5minutes)fortimeswhenthespaceisusuallyvacant,andlongerdelays(upto30minutes)forbusiertimes.

Application

WattStopper’spatenteddualtechnologyhastheflexibilitytoworkinavarietyofapplications,whereonetechnologyalonecouldencounterfalsetrig-gers.Idealapplicationsincludeclassrooms,openofficespaces,largeoffices,andcomputerrooms.Inaddition,becausetheDT-355canbemountedontoavarietyofjunctionboxes,thesensorhastheflexibilitytobeusedinawiderangeofspaces.Thesensorseliminatetheneedforapowerpackbyusinglinevoltagewiring.

Terminal wiring for quick and easy installation

Architecturally appealing low profile appearance

Operates at 120, 277 or 347 VAC, 50/60 Hz

Walk-through mode increases savings potential

Auto set automatically selects optimal settings for each space

Ultrasonic diffusers give more comprehensive coverage

Page 2: DT-355 Dual Technology Line Voltage Ceiling Sensor cutsheet.pdf · PROJECT LOCATION/TYPE. 800.879.8585. C ommer C ial o CCUP a NCY S e NS or S & Co N trol S. DT-355 Dual Technology

www.wattstopper.com | 8 0 0 . 8 7 9 . 8 5 8 5

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Wiring & Mounting

Controls &Settings

Coverage

Pub.No.15807rev.11/2010

Ordering Information

Specifications • 120/277/347VAC,50/60Hz• Ultrasonicfrequencyof40kHz• Timedelays:Autoset,fixed(5,10,15,20,or30

minutes),walk-through,test-mode• Sensitivityadjustment:Autosetorreduced

sensitivity(forPIRsensitivity);ultrasonicsensi-tivityisvariablewithtrimpot

• Built-inlightlevelsensor–worksfrom10to300footcandles(107.6to3,229.2lux)

• Multi-level,360°Fresnellensforsuperioroccupancydetection

• Mountingoptions:4squarejunctionboxwithdoublegangmudring;4inchoctagonaljunctionbox

• Dimensions:4.50”diameterx1.45”deep(114.3mmx25.9mm)

• ULandcULlisted• Fiveyearwarranty

DT-355 120VAC,50/60Hz277VAC,50/60Hz347VAC,50/60Hz

CA-1 Cosmeticadapterforceilinginstallationswith4”squarej-boxorWiremold#V5748-2box

CatalogNo.VoltageLoadRating Coverage

Sensorsarewhite.

0-800WBallast/Tungsten0-1200WBallast0-1500WBallast

upto1000ft2,(92.9m2)

DT-355 Wiring Diagram

DIP Switch Settings

Ceiling Mounting

Product Controls

4" Square, 2.25" Deep*Junction Box with Double Gang Mudring attached

Drop Ceiling

FrontCover

CA-1 Adapter

Rear Housing

Screws

Sensor Flange

Load

Load Hot

Neutral

NeutralGround

(Optional)

Keyhole slots(for mounting to 4" octagonal box)

Double gang mudringmounting holes

Light level pushbutton

DIP switches

PIR lens

Ultrasonic sensitivitytrimpot

ON

1

2

3

4

5

6

7

8

ECE

Ultrasonic transducercones

Ultrasonic activityLED (Green)

PIR ActivityLED (Red)

44 ft(13.4m)

40 ft x 40 ft(12.2m x 12.2m)

Thetechnologycontrol(occupancylogic)optionsareadjustablebyuser.Thestandardsetting(recommendedformostapplica-tions)isbothtechnologiestotriggeron,eithertoholdon.

Coverageshownismaximumandrepresentshalf-stepwalkingmotion.Underidealconditions,coverageforhalf-stepwalkingmotioncanreachupto1000ft2(92.9m2).

8 Minimum Max./SmartSet

PIR Sensitivity

5 sec/SmartSet

10 min. 10 minutes

15 min. 15 minutes20 minutes

30 min.

5 minutes

4 5 6Time Delay

= walk-through mode

LEDsDisabledEnabled

7

= ON = OFF

Standard

Option 2Option 3

Option 1

1 2 3

Option 4Option 5Option 6Option 7

LogicSwitch#

Occupancy

Standard

Option 2Option 3

Option 1

Trigger

Option 4Option 5Option 6Option 7

Initi

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Re-

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Occ

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ogic

Both

Both Both

Both Both(30)

Both(5)

Either(5)

Either

EitherEither

Either

Either(5)

Either(5)

Either

PIR

PIR

PIR PIR(5)

Either(30)

Ultra(5)Ultra Ultra

Man.

Man.

8 Minimum Max./SmartSet

PIR Sensitivity

5 sec/SmartSet

10 min. 10 minutes

15 min. 15 minutes20 minutes

30 min.

5 minutes

4 5 6Time Delay

= walk-through mode

LEDsDisabledEnabled

7

= ON = OFF

Standard

Option 2Option 3

Option 1

1 2 3

Option 4Option 5Option 6Option 7

LogicSwitch#

Occupancy

Standard

Option 2Option 3

Option 1

Trigger

Option 4Option 5Option 6Option 7

Initi

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ccup

ancy

Mai

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Re-

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n)

Occ

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ogic

Both

Both Both

Both Both(30)

Both(5)

Either(5)

Either

EitherEither

Either

Either(5)

Either(5)

Either

PIR

PIR

PIR PIR(5)

Either(30)

Ultra(5)Ultra Ultra

Man.

Man.

8 Minimum Max./SmartSet

PIR Sensitivity

5 sec/SmartSet

10 min. 10 minutes

15 min. 15 minutes20 minutes

30 min.

5 minutes

4 5 6Time Delay

= walk-through mode

LEDsDisabledEnabled

7

= ON = OFF

Standard

Option 2Option 3

Option 1

1 2 3

Option 4Option 5Option 6Option 7

LogicSwitch#

Occupancy

Standard

Option 2Option 3

Option 1

Trigger

Option 4Option 5Option 6Option 7

Initi

alO

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ancy

Mai

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ancy

Re-

trigg

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Occ

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Both

Both Both

Both Both(30)

Both(5)

Either(5)

Either

EitherEither

Either

Either(5)

Either(5)

Either

PIR

PIR

PIR PIR(5)

Either(30)

Ultra(5)Ultra Ultra

Man.

Man.

DT-355-U

Coverage Pattern


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