HK DPT-DUAL Series User manual

Copyright HK Instruments 2019 www.hkinstruments. Installaon version 8.0 2019
INSTALLATION
INSTRUCTIONS
DIFFERENTIAL PRESSURE TRANSMITTERS
DPT-Dual 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 DPT-Dual series dif-
ferenalpressuretransmier.DPT-Dualcombinestwodierenal
pressuretransmiersintoonedevice.Itoersapossibilitytomeas-
urepressurefromtwodierentpoints.DPT-Dualisdesignedwith
veunitselecons(Pa,kPa,mbar,inchWC,mmWC)andeighteld
selectablemeasurementranges(unidireconalandbi-direconal)to
meet your applicaon requirements. The DPT-Dual series is com-
prisedoftheDPT-Dual-2500withrangesfrom-100–2500Paand
DPT-Dual-7000withrangesfrom0–7000Pa.
DPT-DualseriesdevicesarecommonlyusedinHVAC/R
systems for:
•fan,blowerandltermonitoring
•pressureandowmonitoring
•valveanddampercontrol
SPECIFICATIONS
Performance
Accuracy (from applied pressure):
Model2500:
Pressure<125Pa=1%+±2Pa
Pressure>125Pa=1%+±1Pa
Model7000:
Pressure<125Pa=1.5%+±2Pa
Pressure>125Pa=1.5%+±1Pa
(including:generalaccuracy,linearity,hysteresis,long
termstability,andrepeonerror)
Overpressure:
Proofpressure:25kPa
Burstpressure:30kPa
Zero point calibraon:
Manualpushbuon
Response me:
4.0sor0.8s,selectableviajumper
Technical Specicaons
Media compability:
Dryairornon-aggressivegases
Measuring units:
Pa,kPa,mbar,inchWC,mmWC,selectableviajumper
Measuring element:
MEMSnoow-through
Environment:
Operangtemperature:-20...+50°C
Temperaturecompensatedrange0...+50°C
Storagetemperature:-40...+70°C
Humidity:0to95%rH,noncondensing
Physical
Dimensions:
Case:102.0x71.5x36.0mm
Weight:
150g,withaccessories290g
Mounng:
2each4.3mmscrewholes,onesloed
Materials:
Case: ABS
Lid:PC
Pressure inlets: Brass
Ductconnectors:ABS
Tubing:PVC
Protecon standard:
IP54
Display (Oponal)
2-linedisplay(12characters/line)
Line1:acvemeasurement,inletA
Line2:acvemeasurement,inletB
Electrical connecons:
4springloadesterminals,max1.5mm2
Wire:0.2–1.5mm2(12–24AWG)
Cableentry:M20
Pressure ngs:
Maleø5.0mmand6.3mm
Electrical
Voltage:
Circuit:3-wire(VOut,24V,GND)
Input:24VACorVDC,±10%
Output:2x0...5/10V(selectableviajumper)
Powerconsumpon:<1.0W
Resistance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 WARNING
APPLICATIONS
RoHS 2
2011/65/EU
COMPANY WITH
MANAGEMENT SYSTEM
CERTIFIED BY DNV GL
= ISO 9001 = ISO 14001 =

Copyright HK Instruments 2019 www.hkinstruments. Installaon version 8.0 2019
SCHEMATICS
DIMENSIONAL DRAWINGS
INSTALLATION
Figure 1a - Surface mounng
STEP 1: MOUNTING THE DEVICE
1)Mountthedeviceinthedesiredlocaon(seestep1).
2)Openthelidandroutethecablethroughthestrainreliefand
connectthewirestotheterminalblock(s)(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(duct,wall,panel).
2)Usethedeviceasatemplateandmarkthescrewholes.
3)Mountwithappropriatescrews.
Figure 1b - Mounng orientaon
Figure 1c - Applicaon connecons
Display connecon
Output 0–10 V
Output 0–10 V
24 V
GND
LED
Zero buon
Terminal
block
Pressure
sensors
Pressure
inlet A Pressure inlet B
J1
J2
J3
J4
J5
J6
J7
J8
J9
Jumpers
YES NO NO
Stac pressure Filter/Damper
monitoring
Fan/Blower
monitoring
Not
connected

Copyright HK Instruments 2019 www.hkinstruments. Installaon version 8.0 2019
STEP 2: WIRING DIAGRAMS
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2.
3)Tightenthestrainrelief.
Figure 2 - Wiring diagram
STEP 3: CONFIGURATION
1)Selectthedesiredmeasurementunit.(seestep4)
2)Selectthedesiredmeasurementrange.(seestep5)
3)Selectthedesiredresponseme.(seestep6)
4)Zerothedevice.(seestep7)
5)Connectthepressuretubes.Connectposivepressuretoport
labeled“+”andnegavepressuretoport“-”.
6)Closethelid.Thedeviceisnowreadytobeused.
STEP 5: SELECTING THE MEASUREMENT RANGE
0–10 V
0–10 V
24 V
GND
+Power Supply
24VDC / 24VAC
V
STEP 4: SELECTING THE MEASUREMENT UNIT
1)Tochangethemeasurementunitappearingonthedisplay,installa
jumpertobothpinsofJ8(seeFigure3).
2)Pushdownthezerobuonandthemeasurementunitopons(Pa,
kPa,mbar,inchWC,mmWC)willcycleonthedisplay.
3)Toselectaunitopontodisplay,removethejumperfromJ8
whilethemeasurementunitisvisibleonthedisplay.
SELECTING THE MEASUREMENT UNIT CONTINUED
Figure 3 - Jumper installaon
No jumper
Circuit open
Jumper storedJumper installed
Circuit closed
(Grey colour indicates that a jumper is installed)
Chart 1
Model DPT-Dual-2500
Range 1 Range 2 Range 3 Range 4 Range 5 Range 6 Range 7 Range 8
Pa
kPa
mbar
inchWC
-100–100
-0.10–0.10
-1.00–1.00
-0.40–0.40
0–100
0–0.10
0–1.00
0–0.40
0–250
0–0.25
0–2.50
0–1.00
0–500
0–0.50
0–5.00
0–2.00
0–1000
0–1.00
0–10.0
0–4.00
0–1500
0–1.50
0–15.0
0–6.00
0–2000
0–2.00
0–20.0
0–8.00
0–2500
0–2.50
0–25.0
0–10.00
Model DPT-Dual-7000
Pa
kPa
mbar
inchWC
0–1000
0–1.00
0–10.0
0–4.00
0–1500
0–1.50
0–15.0
0–6.00
0–2000
0–2.0
0–20.0
0–8.00
0–2500
0–2.50
0–25.0
0–10.0
0–3000
0–3.00
0–30.0
0–12.00
0–4000
0–4.00
0–40.0
0–16.00
0–5000
0–5.00
0–50.0
0–20.00
0–7000
0–7.00
0–70.0
0–28.00
Range 1 Range 2 Range 3 Range 4 Range 5 Range 6 Range 7 Range 8
mmWC
mmWC
-10.2–10.2 0–10.2 0–25.5 0–51.0 0–102.0 0–153.0 0–204.0 0–255.0
0–102.0 0–153.0 0–204.0 0–255.0 0–306.0 0–408.0 0–510.0 0–714.0
1)Determinetherangenumber
a.FindthemodelinChart1.
b.Findthemeasurementunit(selectedinstep4).
c.Findtherequiredmeasurementrangeonthesamelineasthe
measurementunit(babove)anddeterminetherangenumberinthe
header.
2)ForinletA:InstalljumpersonJ1,J2andJ3asrequired.
a.Usingtherangenumberfrom1cabove,ndthecorresponding
rangenumberinChart2.
b.InstalljumpersonJ1,J2andJ3ondevice,asshownundertherange
numberinChart2.(Greycolourindicatesthatajumperisinstalled.
Referencegure3forjumperinstallaon.)

Copyright HK Instruments 2019 www.hkinstruments. Installaon version 8.0 2019
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.
SELECTING THE MEASUREMENT RANGE CONTINUED
Chart 2 - Inlet A
Range 7 Range 8Range 1 Range 2 Range 3 Range 4 Range 5 Range 6
Jumper J1
Jumper J2
Jumper J3
(Grey colour indicates that a jumper is installed. Reference Figure 3 and Schemacs for jumper installaon.)
3)ForinletB:InstalljumpersonJ4,J5andJ6asrequired.
a.Usingtherangenumberfrom1cabove,ndthecorresponding
rangenumberinChart3.
b.InstalljumpersonJ4,J5andJ6ondevice,asshownundertherange
numberinChart3.(Greycolourindicatesthatajumperisinstalled.
Referencegure3forjumperinstallaon.)
Chart 3 - Inlet B
Range 7 Range 8Range 1 Range 2 Range 3 Range 4 Range 5 Range 6
Jumper J4
Jumper J5
Jumper J6
(Grey colour indicates that a jumper is installed. Reference Figure 3 and Schemacs for jumper installaon.)
STEP 6: SELECTING THE RESPONSE TIME
Theresponsemeaectshowfastthetransmierreactstochangesin
thesystem.Theresponsemeisthemethedevicetakestoreach63
%ofthemeasuredvalue.Tosmoothoutunstablepressureuctuaons
inairowapplicaons,selectalongerresponseme.
Example:
Selectedresponseme:4.0seconds
Result: Output signal achieves a new value in 20 seconds (Response
me*5)
Tochangeresponseme,installorremovejumperonJ7.
(seeFigure3)
1)InstalljumperonJ7for4.0secondresponseme.
2)RemovejumperfromJ7for0.8secondresponseme.
NOTE:Thiswillchangetheresponsemeforbothdierenalpressure
measurements.
WARRANTY POLICY
STEP 7: ZEROING THE DEVICE
NOTE! Always zero the device before use.
ManualPushbuonzeropointcalibraon:
NOTE: Supply voltage must be connected at least one hour prior to
zeropointadjustment.
a)Disconnectbothpressuretubesfromthepressureportslabeled+
and–.
b)PushdownthezerobuonunltheLEDlight(red)turnsonand
thedisplayreads“zeroing”(displayopononly).(seeFigure4)
c)Thezeroingofthedevicewillproceedautomacally.Zeroingis
completewhentheLEDturnso,andthedisplayreads0(display
opononly).
ZEROING THE DEVICE CONTINUED
d)ReinstallthepressuretubesensuringthattheHighpressuretube
isconnectedtotheportlabeled+,andtheLowpressuretubeis
connectedtotheportlabeled−.
Figure 4
a) Disconnect both pressure tubes from the pressure ports labeled +
and –.
b) Push down the zero buon (joysck) unl the LED light (red)
turns on and the display reads “zeroing” (display opon only). (see
Figure 6)
c) The zeroing of the device will proceed automacally. Zeroing is
complete when the LED turns off, and the display reads 0 (display
opon only).
d) Reinstall the pressure tubes, ensuring the High pressure tube is
connected to the port labeled +, and the Low pressure tube is
connected to the port labeled −.
Press down buon
LED turns ON
Display reads “Zeroing”
LED
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.