Potter CPS-24N Conventional Photoelectric Smoke Detector Owner's manual

Brand: Potter

Model: CPS-24N Conventional Photoelectric Smoke Detector

Category: Smoke detectors

Type: Owner's manual

CPS-24N

Conventional Photoelectric Smoke Detector

8830138 - REV A • 08/17 PAGE 1 OF 2

Potter Electric Signal Company, LLC • St. Louis, MO • Phone: 800-325-3936 • www.pottersignal.com

Features

• 360° view of detector status LED

• Lowprole,2”high(withbase)

• 2or4wirebasecompatibility,relaybasesavailable

• Highlystableoperation,RF/Transientprotection

• Lowstandbycurrent,59μAat24VDC

• Onebuilt-inpower/sensitivitysupervision/alarmLED

• AutomaticSensitivitywindowvericationfunctionmeets

outlinedrequirementsinNFPA72,Chapter2&7,Inspection,

TestingandMaintenance.

• WithoutMagneticTestFeature

LightSource GaAIAsInfraredEmittingDiode

RatedVoltage 12or24VDC

WorkingVoltage 8-35.0VDC

MaximumVoltage 42VDC

SupervisoryCurrent 59μA@24VDC

SurgeCurrent 160μAmax.@24VDC

AlarmCurrent 150mAmax.@24VDC

AirVelocityRange 0-4000fpm

Ambient

Temperature 32°Fto120°F(0°Cto49°C)

SensitivityTest

Feature

AutomaticSensitivitywindowvericationtest

Mounting RefertoPotterSBSeriesSmokeDetectorBaseseries,bulletinno.

8840008.

Description

TheCPS-24Nisareliable,highqualityPhotoelectricSmoke

Detector.ItcanbeusedinallopenareaswherePhotoelectricSmoke

Detectorsarerequired,includingin-ductapplications.Thecomputer-

designedsmokechambermakestheCPS-24Nwellsuitedfor

detectingsmolderingresaswellasfast-amingres.

Operation

TheCPS-24Nphotoelectricsmokedetectorutilizesonebicolored

LEDforindicationofstatus.Inanormalstandbyconditionthe

LEDashGreenevery3seconds.Whenthedetectorsensesthatits

sensitivityhasdriftedoutsidetheULlistedsensitivitywindowthe

LEDwillashRedevery3seconds.Whenthedetectorsensessmoke

andgoesintoalarmthestatusLEDwilllatchonRed.

ThedetectorutilizesaninfraredLEDlightsourceandsilicon

photodiodereceivingelementinthesmokechamber.Inanormal

standbycondition,thereceivingelementreceivesnolightfrom

thepulsingLEDlightsource.Intheeventofare,smokeenters

thedetectorsmokechamberandlightisreectedfromthesmoke

particlestothereceivingelement.Thelightreceivedisconvertedinto

anelectronicsignal.

FireJudgementsignalsareprocessedandcomparedtoareference

level,andwhenveconsecutivesignalsexceedingthereferencelevel

arereceivedwithinaspeciedperiodoftime,thetimedelaycircuit

triggerstheSCRswitchtoactivatethealarmsignal.ThestatusLED

lightscontinuouslyduringthealarmperiod.

Technical Specications

firealarmresources.com

8830138 - REV A • 08/17 PAGE 2 OF 2

Potter Electric Signal Company, LLC • St. Louis, MO • Phone: 800-325-3936 • www.pottersignal.com

CPS-24N

Conventional Photoelectric Smoke Detector

The contractor shall furnish and install where indicated on the plans,

Potter Electric Signal CPS-24N photoelectric smoke detectors. The

combination detector head and twist-lock base shall be UL listed

compatiblewithaULlistedrealarmpanel.

The base shall permit direct interchange with  Potter CPS-24VN

combinationphotoelectricsmokedetector.Thebaseshallbeappropriate

twist-lockbaseSBSeries.Intheeventofpartialorcompleteretrot,

the CPS-24N may be used in conjunction with, or as a replacement

for, Potter detectors (PS-24, PS-24H and the IS-24) on most SB base

applications.

The smoke detector shall have one ashing status LED for visual

supervision.Whenthedetectorisin standby condition the LEDwill

ash Green. When the detector is outside the UL listed sensitivity

window the LED will ash Red. When the detector is actuated, the

ashingLEDwilllatchonRed.Thedetectormayberesetbyactuating

thecontrolpanelresetswitch.

The sensitivity of the detector shall be capable of being measured.

The sensitivity of the detector shall be monitored automatically and

continuously to verify that it is operating within the listed sensitivity

range. To facilitate installation, the detector shall be non-polarized.

VoltageandRFtransientsuppressiontechniquesshallbeemployedto

minimizefalsealarmpotential.AuxiliarySPDTrelaysshallbeinstalled

whereindicated.

Specications

Ordering Information

CPS-24N Sensitivity Test Feature

The Potter CPS-24N Photoelectric Smoke Detector has a built-in

automaticsensitivitytestfeature.

1.Innormalcondition,thestatusLEDashesgreen.

2.Whenthesensitivitydriftsoutsideofitssensitivitylimits,thestatus

LEDashesred.

3.Inthealarmstate,thestatusLEDisredcontinuously.

4. When the sensitivity drifts outside of its sensitivity limits and the

statusLEDashesred,thedeviceneedstobecleanedorreturnedtothe

factoryforcleaningorcalibration.

Model Description Stock No.

CPS-24N

Conventional Photoelectric Smoke

Detector without magnetic test

feature

1430037

firealarmresources.com

Potter CPS-24N Conventional Photoelectric Smoke Detector Owner's manual

Brand: Potter

Model: CPS-24N Conventional Photoelectric Smoke Detector

Category: Smoke detectors

Type: Owner's manual

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