HK Instruments CDT 2000 Duct Series User manual

Copyright HK Instruments 2017 www.hkinstruments. Installaon version 5.0 2017
INSTALLATION
INSTRUCTIONS
CARBON DIOXIDE TRANSMITTERS
CDT2000 Duct Series
• READ THESE INSTRUCTIONS CAREFULLY BEFORE
ATTEMPTING TO INSTALL, OPERATE OR SERVICE THIS
DEVICE.
• Failuretoobservesafetyinformaonandcomplywith
instruconscanresultinPERSONALINJURY,DEATHAND/OR
PROPERTY DAMAGE.
• Toavoidelectricalshockordamagetoequipment,disconnect
powerbeforeinstallingorservicinganduseonlywiringwith
insulaonratedforfulldeviceoperangvoltage.
• Toavoidpotenalreand/orexplosiondonotuseinpotenally
ammableorexplosiveatmospheres.
• Retaintheseinstruconsforfuturereference.
• Thisproduct,wheninstalled,willbepartofanengineered
systemwhosespecicaonsandperformancecharacteriscs
arenotdesignedorcontrolledbyHKInstruments.Review
applicaonsandnaonalandlocalcodestoassurethatthe
installaonwillbefunconalandsafe.Useonlyexperiencedand
knowledgeabletechnicianstoinstallthisdevice.
SPECIFICATIONS
Thank you for choosinganHKInstruments CDT2000 Ductseries
carbon dioxide transmier. The CDT2000 Duct series is intended
foruseincommercialenvironmentsinHVAC/Rapplicaons.
TheCDT2000Ductseriesmeasurescarbondioxide(CO2),ulizing
theindustrystandardNDIRmeasurementprinciple,andtempera-
ture(T).Illuminateddisplayensureseasyreadabilityalsofromadis-
tance.TheCDT2000Ducthasascrewlesslidandaneasilyadjust-
ablemounngangethatmaketheinstallaonofthedeviceeasy.
TheCDT2000 Duct seriestransmierscalibrate themselvesauto-
macallyusingABCTMlogic.TheABCTMlogicrequiresthatthespace
inwhichthetransmierisusedneedstotobeunoccupiedforfour
hours per day so that the indoor CO2 concentraon drops to the
outside level. CDT2000-DC Duct is a dual channel model with a
measuringchannelandareferencechannelthatmakesaconnuous
comparisonandthenecessaryadjustmentaccordingly.CDT2000-
DCDuctisalsosuitableforbuildingsthatareconnuouslyoccupied.
CDT2000Ductseriesdevicesarecommonlyusedtomonitor:
• CO2levelsofincomingandreturnairinvenlaonsystem
•CDT2000-DCDuctseriesdevicescanalsobeusedinapplicaons
wherethereisaconstantsourceofcarbondioxidepresent(for
examplehospitalsandgreenhouses)
SPECIFICATIONS
Performance
Measurement ranges:
CO2:400–2000ppm
Temperature:0...50° °F 32...122 /C
Accuracy:
CO2:±40ppm+2%ofreading,DCmodel:75ppmor
10%ofreading(whicheverisgreater)
Temperature:<0.5º °F <0.9 /C
Technical Specicaons
Media compability:
Dryairornon-aggressivegases
Measuring units:
ppmand°C
Measuring element:
CO2:Non-dispersiveinfrared(NDIR)
Temperature:NTC10K
Calibraon:
Automacself-calibraonABCLogicTMorconnuous
comparison(DC)
Environment:
Operangtemperature:0...50° °F 32...122 /C
Storagetemperature:-20...70° °F -4...158 /C
Humidity:0to95%rH,noncondensing
Physical
Dimensions:
Case:119x100x44.7m 1.76" x 3.94 x 4.69 /m
Probe:L=188mm,d=12m d=0.47" 7.40",L= /m
Mounng:
Withange,adjustable0...188mm 0...7.40" /
Weight:
150 oz 5.30 /g
Materials:
Case:ABS
Cover:PC
Probe:ABS
Protecon standard:
IP54
Electrical connecons:
4springloadedterminals
(24V,GND,CO2, T)
0.2–1.5mm2(12–24AWG)
Electrical
Supplyvoltage:24VACorVDC±10%
Currentconsumpon:max230mA(at24V)+10mA
foreachvoltageoutput
Outputsignalsforeverymedia:
0/2...5/10VDC,LoadRminimum1kΩ
Conformance
MeetsrequirementsforCEmarking:
EMCDirecve2014/30/EU
RoHSDirecve2011/65/EU
WEEEDirecve2012/19/EU
INTRODUCTION
APPLICATIONS
WARNING
COMPANY WITH
MANAGEMENT SYSTEM
CERTIFIED BY DNV GL
= ISO 9001 = ISO 14001 =
RoHS 2
2011/65/EU

Copyright HK Instruments 2017 www.hkinstruments. Installaon version 5.0 2017
Schematics
dimensional drawings
INSTALLATION
STEP 1: MOUNTING THE DEVICE
1)Mountthedeviceinthedesiredlocaon(seestep1).
2)Routethecablesandconnectthewires(seestep2).
3)Thedeviceisnowreadyforconguraon.
WARNING!Applypoweronlyaerthedeviceisproperlywired.
1)Selectthemounnglocaon(onaduct).
2)Usethemounngangeofthedeviceasatemplateandmarkthe
screwholes.
3)Mounttheangeontheductwithscrews(notincluded).(Figure1a)
4)Adjusttheprobetothedesireddepth.Ensurethattheendofthe
probereachesthemiddleoftheduct.(Figure1b)
5)Tightenthescrewontheangetoholdtheprobeinposion.
Figure 1a - Mounng a ange
Figure 1b - Mounng the probe in a ange
Air flow direcon Air flow direcon
Air flow direcon Air flow direcon Air flow direcon
Strain relief facing down
Figure 1c - Mounng orientaon
Display connecon
Terminal block
TE
24 V
GND
Joysck 1
Joysck 2
Joysck 3
Select
Up
Down
Menu buons CO2
Tighten the
screw

Copyright HK Instruments 2017 www.hkinstruments. Installaon version 5.0 2017
STEP 3: CONFIGURATION
ConguraonoftheCDT2000Ductseriesdeviceconsistsof:
Conguraonmenuopons.(Displayversionsonly.)
Presstheselectbuontoacceptchanges.Movetothenextset-
ngbypressingthedownbuon.
1)AcvatethedeviceMenubypushingtheselectbuonfor2
seconds.
2)SelecttheCO2lowlimitforoutputband:0...1900ppm.
ForCEcomplianceaproperlygroundedshieldingcableis
required.
1)Unscrewthestrainreliefandroutethecable(s).
2)Connectthewiresasshowningure2a.
3)Tightenthestrainrelief.
CO2
T
24 V
GND
+Power Supply
24VDC / 24VAC
Output 0/2...5/10 V
Output 0/2...5/10 V
CO2OUT MIN
400 CO
2ppm
SELECT
UP
DOWN
3)SelecttheCO2highlimitforoutputband:500...2000ppm.
CO2OUT MAX
2000 CO
2ppm
SELECT
UP
DOWN
4)Selectthetemperaturelowlimitforoutputband:0...45.0°Cor
32...112°F.
TE OUT MIN
0.0 °C
SELECT
UP
DOWN
5)Selectthetemperaturehighlimitforoutputband:5...50.0°C
or42...122°F.
6)Selecttheoutputmaximumvoltage:5V/10V.
TE OUT MAX
50.0 °C
SELECT
UP
DOWN
MAX OUTPUT V
10 V
SELECT
UP
DOWN
7)Selecttheoutputminimumvoltage:0V/2V.
MIN OUTPUT V
0 V
SELECT
UP
DOWN
8)Pushtheselectbuontoexitmenu.
SELECT
EXIT MENU SELECT
STEP 2: WIRING DIAGRAMS
NOTE!Whenusinglongconneconwiresitmaybenecessarytousea
separateGNDwireforvoltageoutputcurrenttopreventmeasurement
distoron.TheneedforanextraGNDwiredependsonthecrosssec-
onandlengthoftheusedconneconwires.Iflongand/orsmallcross
seconwiresareused,supplycurrentandwireresistancemaygener-
ate avoltage drop in the common GND wire resulng in adistorted
outputmeasurement.
CO2
T
24 V
GND
+Power Supply
24VDC / 24VAC
Output 0/2...5/10 V
Output 0/2...5/10 V
V
V
Figure 2a - Wiring diagram
Figure 2b - Wiring diagram: Extra GND wire

Copyright HK Instruments 2017 www.hkinstruments. Installaon version 5.0 2017
WARRANTY POLICY
Thesellerisobligatedtoprovideawarrantyofveyearsforthedeliv-
eredgoodsregardingmaterialandmanufacturing.Thewarrantyperiod
isconsideredtostartonthedeliverydateoftheproduct.Ifadefectin
rawmaterialsoraproduconawisfound,thesellerisobligated,when
theproductissenttothesellerwithoutdelayorbeforeexpiraonof
thewarranty,toamendthemistakeathis/herdiscreoneitherbyre-
pairingthedefecveproductorbydeliveringfreeofchargetothebuy-
eranewawlessproductandsendingittothebuyer.Deliverycosts
fortherepairunderwarrantywillbepaidbythebuyerandthereturn
costsbytheseller.Thewarrantydoesnotcomprisedamagescausedby
accident, lightning, ood or other natural phenomenon, normal wear
andtear,improperorcarelesshandling,abnormaluse,overloading,im-
properstorage,incorrectcareorreconstrucon,orchangesandinstal-
laonworknotdonebythesellerorhis/herauthorizedrepresentave.
Theseleconofmaterialsfordevicespronetocorrosionisthebuyer’s
responsibility,unlessotherwiseislegallyagreedupon.Shouldtheman-
ufactureralterthestructureofthedevice,thesellerisnotobligatedto
makecomparablechangestodevicesalreadypurchased.Appealingfor
warrantyrequiresthatthebuyerhascorrectlyfullledhis/herdues
arisenfromthedeliveryandstatedinthecontract.Thesellerwillgive
anewwarrantyforgoodsthathavebeenreplacedorrepairedwithin
thewarranty,howeveronlytotheexpiraonoftheoriginalproduct’s
warrantyme.Thewarrantyincludestherepairofadefecvepartor
device, orif needed, anew part ordevice,but notinstallaonorex-
change costs. Under no circumstanceisthe sellerliable for damages
compensaonforindirectdamage.
RECYCLING/DISPOSAL
The parts le over from installaon should be
recycled according to your local instrucons.
Decommissioned devices should be taken to a
recyclingsitethatspecializesinelectronicwaste.
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