HK Instruments RHT DUCT Series User manual

Copyright HK Instruments 2017 www.hkinstruments. Installaon version 5.0 2017
INSTALLATION
INSTRUCTIONS
HUMIDITY TRANSMITTERS
RHT 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RHTDuctseriesrelave
humiditytransmier.TheRHTseriesisintendedforuseincommer-
cialenvironmentsinHVAC/Rapplicaons.
RHT Ductisarelavehumiditytransmierwithtemperature out-
putinstalledinairvenlaonduct.Illuminateddisplayensureseasy
readabilityalsofromadistance.TheRHThasascrewlesslidandan
easilyadjustablemounngangethatmaketheinstallaonofthe
deviceeasy.
RHTDuctseriesdevicesarecommonlyusedtomonitorandcontrol:
•Relavehumidityandtemperaturelevelsofincomingandreturnair
invenlaonsystem
SPECIFICATIONS
Performance
Measurement ranges:
Temperature:0...50° F° 32...122 /C
Relavehumidity:0–100%
Accuracy:
Temperature:<0.5º °F <0.9 /C
Relavehumidity:±2...3%at0...50°Cand10–90%rH
Totalerrorbandincludesaccuracy,hysteresisand
temperatureeectover5...50°Cand10–90%rH.
Technical Specicaons
Media compability:
Dryairornon-aggressivegases
Measuring units:
°Cand%rH
Measuring element:
Temperature:NTC10K
Relavehumidity:Thermosetpolymercapacive
sensingelement
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 4.68 /m
Probe: L=188mm,d=12m .47"d=0 L=7.40", /m
Mounng:
Withange,adjustable0...188m 0...7.40" /m
Weight:
150  oz5.30 /g
Materials:
Case:ABS
Cover:PC
Probe:ABS
Mounngange:LLPDP
Protecon standard:
IP54
Electrical connecons:
4springloadedterminals
(24V,GND,rH,T)
0.2–1.5mm2(12–24AWG)
Electrical
Supplyvoltage:24VACorVDC±10%
Currentconsumpon:max90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 rH
Tighten the
screw

Copyright HK Instruments 2017 www.hkinstruments. Installaon version 5.0 2017
STEP 3: CONFIGURATION
CONFIGURATION CONTINUED
ConguraonoftheRHT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humiditylowlimitforoutputband:0...90%.
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.
rH
T
24 V
GND
+ Power Supply
24VDC / 24VAC
Output 0/2...5/10 V
Output 0/2...5/10 V
rH OUT MIN
0.0
%rH
SELECT
UP
DOWN
3)Selectthehumidityhighlimitforoutputband:10...100%.
rH OUT MAX
100.0
%rH
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
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repairingthedefecveproductorbydeliveringfreeofchargetothe
buyer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.
STEP 2: WIRING DIAGRAMS
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.
Figure 2 - Wiring diagram
SELCOUSA.com