HK Instruments DPT-Ctrl Series User manual

Copyright HK Instruments 2020 www.hkinstruments. Installaon version 9.0 2020
INSTALLATION
INSTRUCTIONS
AIR HANDLING CONTROLLER
DPT-Ctrl 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.
ThankyouforchoosinganHKInstrumentsDPT-Ctrlseriesairhan-
dlingcontrollerwithdierenalpressureorairowtransmier.The
DPT-CtrlseriesPIDcontrollersareengineeredforbuildingautoma-
onintheHVAC/Rindustry.Withthebuilt-incontrolleroftheDPT-
Ctrlit ispossibleto control the constant pressureorowof fans,
VAVsystemsordampers.Whencontrollingairow,itispossibleto
selectafanmanufactureroracommonmeasuringprobethathasa
K-value.
DPT-CtrlseriesdevicesarecommonlyusedinHVAC/Rsystemsfor:
•Controllingdierenalpressureorairowinairhandlingsystems
•VAVapplicaons
•Controllingparkinggarageexhaustfans
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
(Accuracyspecicaonsinclude:generalaccuracy,
linearity,hysteresis,longterm
stability,andrepeonerror)
Overpressure:
Proofpressure:25kPa
Burstpressure:30kPa
Zero point calibraon:
Automacautozeroormanualpushbuon
Response me:
1.0−20s,selectableviamenu
Technical Specicaons
Media compability:
Dryairornon-aggressivegases
Controller parameter (selectabe via menu):
Setpoint0...2500/7000Pa
P-band0...100000
I-me0...1000s
D-factor0...100
Pressure units (select via menu):
Pa,kPa,mbar,inWC,mmWC,psi
Flow units (select via menu):
Volume:m3/s,m3/hr,cfm,l/s
Velocity:m/s,/min
Measuring element:
MEMS,noow-through
Environment:
Operangtemperature:-20...50°C,
-40Cmodel:-40...50°C
Modelswithautozerocalibraon-5...50°C
Temperaturecompensatedrange0...50°C
Storagetemperature:-40...70°C
Humidity:0to95%rH,noncondensing
Physical
Dimensions:
Case:90.0x95.0x36.0mm
Weight:
150g
Mounng:
2each4.3mmscrewholes,onesloed
Materials:
Case:ABS
Lid:PC
Protecon standard:
IP54
Display
2-linedisplay(12characters/line)
 Line1:Direconofcontroloutput
 Line2:Pressureorairowmeasurement,
  selectableviamenu
Size:46.0x14.5mm
Electrical connecons:
4-screwterminalblock
Wire:0.2–1.5mm2(12–24AWG)
Cable entry:
Strainrelief:M16
Knockout:16mm
Pressure ngs
5.2mmbarbedbrass
+Highpressure
−Lowpressure
Electrical
Voltage:
Circuit:3-wire(VOut,24V,GND)
Input:24VACorVDC,±10%
Output:0–10V,selectableviajumper
Powerconsumpon:<1.0W
Resistanceminimum:1kΩ
Current:
Circuit:3-wire(mAOut,24V,GND)
Input:24VACorVDC,±10%
Output:4–20mA,selectableviajumper
Powerconsumpon:<1.2W
Maximumload:500Ω
Minimumload:20Ω
Conformance
MeetsrequirementsforCEmarking:
EMCDirecve2014/30/EU
RoHSDirecve2011/65/EU
WEEEDirecve2012/19/EU
WARNINGINTRODUCTION
APPLICATIONS
RoHS 2
2011/65/EU
COMPANY WITH
MANAGEMENT SYSTEM
CERTIFIED BY DNV GL
= ISO 9001 = ISO 14001 =

Copyright HK Instruments 2020 www.hkinstruments. Installaon version 9.0 2020
SCHEMATICS
DIMENSIONAL DRAWINGS
Figure 1 - Mounng orientaon
Connecon for display
Terminal block
Pressure
sensor
Menu buons
LED
SELECT
UP
DOWN
ZERO
CONTROL OUT
P/V OUT
24 V
GND
CTRL OUTPUT PRESSURE
4–20 mA
Out
0–10 V
90.0
77.0
71.5
53.0
4.2
95.0
36.0
DPT-Ctrl
YES NO NO
INSTALLATION
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.
STEP 2: WIRING DIAGRAMS
ForCEcompliance,aproperlygroundedshieldingcableisrequired.
1)Unscrewthestrainreliefandroutethecable.
2)Connectthewiresasshowningure2.
3)Tightenthestrainrelief.
Figure 2a - Wiring diagram
Control output
Pressure/Flow output
24 V
GND
+Power supply
24 VDC / 24 VAC
0–10 V / 4–20 mA
0–10 V / 4–20 mA
STEP 1: MOUNTING THE DEVICE
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.
MOUNTING THE DEVICE CONTINUED
Figure 2b - Output mode selecon:
Default selecon 0–10 V for both
Jumper installed to the two upper pins on the le side:
4–20 mA output selected for control output
Ctrl output Pressure
Jumper installed to the two lower pins on the le side:
0–10 V output selected for control output
Jumper installed to the two upper pins on the right side:
4–20 mA output selected for pressure
Jumper installed to the two lower pins on the right side:
0–10 V output selected for pressure

Copyright HK Instruments 2020 www.hkinstruments. Installaon version 9.0 2020
CONFIGURATION CONTINUED
2)If Commonprobe selected:selectmeasurementunitsusedinthe
formula(akaFormulaunit)(i.e.l/s)
b. If
Commonprobe selectedinstep1:
Each common probe has a specic K-value. Select the K-value from
commonprobemanufacturer’sspecicaons.
AvailableK-valuerange:0.001...9999.000
1)Selectthefunconingmodeofthecontroller
-Select
Manufacturer whenconnecngDPT-Ctrltoafan
withpressuremeasurementtaps
-Select
Commonprobe whenusingDPT-Ctrlwithacommon
measurmentprobethatfollowstheformula:
q = k ∙ √∆P (i.e.FloXact)
MANUFACTURER
Common probe
SELECT
UP
DOWN
Common probe Flakt Woods
SELECT
UP
DOWN
FORMULA UNIT
l/s
SELECT
UP
DOWN
3)SelectK-value
a.Ifmanufacturerselectedinstep1:
EachfanhasaspecicK-value.SelecttheK-valuefromfanmanufac-
turer’sspecicaons.
K-VALUE
9000.000
SELECT
UP
DOWN
3)Selectpressureunitfordisplayandoutput:Pa,kPa,mbar,inWCor
mmWC.
PRESS. UNIT
Pa
SELECT
UP
DOWN
4)Pressureoutputscale(POUT).Selectpressureoutputscaleto
improveoutputresoluon.
P OUTPUT MAX
2000 Pa
SELECT
UP
DOWN
5)Responseme:Selectresponsemebetween1.0-20s.
RESPONSE TIME
20 s
SELECT
UP
DOWN
6)Selectthesetpointofthecontroller.
REF PRESSURE
100 Pa
SELECT
UP
DOWN
7)Selectproporonalbandaccordingtoyourapplicaon
specicaons.
P-VALUE
206
SELECT
UP
DOWN
8)Selectintegraonmeaccordingtoyourapplicaonspecicaons.
I-VALUE
4.00
SELECT
UP
DOWN
9)Selectderivaonmeaccordingtoyourapplicaonspecicaons.
D-VALUE
1.00
SELECT
UP
DOWN
10)Pushselectbuontoexitmenuandtosavechanges.
SELECT
EXIT MENU SELECT
Select FLOW when controlling an air ow.
CONTROL UNIT
FLOW
SELECT
UP
DOWN
4)Selectowunitfordisplayandoutput:
Flowvolume:m3/s,m3/h,cfm,l/s
Velocity:m/s,f/min
FLOW UNIT
m3/s
SELECT
UP
DOWN
5)Flowoutputscale(VOUT):Selectowoutputscaletoimprove
outputresoluon.
V OUTPUT MAX
50.000 m3/s
SELECT
UP
DOWN
6)Responseme:Selectresponsemebetween1.0–20s.
RESPONSE TIME
20 s
SELECT
UP
DOWN
step 3: CONFIGURATION
7)Selectasetpointofthecontroller.
REF FLOW
0.025 m3/s
SELECT
UP
DOWN
CONTROL UNIT
PRESSURE
SELECT
UP
DOWN
2)Selectthefunconingmodeofthecontroller:PRESSUREorFLOW.
Select PRESSURE when controlling a dierenal pressure.
1)AcvatethedeviceMenubypushingthetheselectbuonfor2
seconds.

Copyright HK Instruments 2020 www.hkinstruments. Installaon version 9.0 2020
NOTE! Always zero the device before use.
Tozerothedevicetwooponsareavailable:
1)ManualPushbuonzeropointcalibraon
2)Autozerocalibraon
Does my transmier have an autozero calibraon? See the product
label.Ifitshows-AZinthemodelnumber,thenyouhavetheautozero
calibraon.
1)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gure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).
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−.
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.
2)Autozerocalibraon
If the device includes the oponal autozero circuit, no acon is re-
quired.
Autozero calibraon (-AZ) isanautozerofunconinthe form ofan
automaczeroingcircuitbuiltintothePCBboard.Theautozerocali-
braon electronically adjusts the transmier zero at predetermined
me intervals(every10 minutes).The funcon eliminatesalloutput
signaldriduetothermal,electronicormechanicaleects,aswellas
theneedfortechnicianstoremovehighandlowpressuretubeswhen
performing inial or periodic transmier zero point calibraon. The
autozeroadjustmenttakes4secondsaerwhichthedevicereturnsto
itsnormalmeasuringmode.Duringthe4secondadjustmentperiod,
theoutputanddisplayvalueswillfreezetothelatestmeasuredvalue.
Transmiers equipped with the autozero calibraon are virtually
maintenancefree.
a) Disconnect both pressure tubes from the pressure ports labeled
+ and –.
b) Push down the zero button (joystick) until the LED light (red)
turns on and the display reads “zeroing” (display option only). (see
Figure 6)
c) The zeroing of the device will proceed automatically. Zeroing is
complete when the LED turns off, and the display reads 0 (display
option 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
Figure 4
ZEROING THE DEVICE CONTINUED
SELECT
EXIT MENU SELECT
11)Pushselectbuontoexitmenu.
CONFIGURATION CONTINUED
8)Selectproporonalbandaccordingtoyourapplicaon
specicaons.
P-VALUE
206
SELECT
UP
DOWN
9)Selectintegraonmeaccordingtoyourapplicaon
specicaons.
I-VALUE
4.00
SELECT
UP
DOWN
10)Selectderivaonmeaccordingtoyourapplicaon
specicaons.
D-VALUE
1.00
SELECT
UP
DOWN
STEP 4: ZEROING THE DEVICE
WARRANTY POLICY
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.
Thelidofthedevicehastobeclosedwhentheoperaontemperature
isbelow0°C.Thedisplayneeds15minutestowarmupifthedevice
isstartedintemperaturebelow0°C.
NOTE!Thepowerconsumponrisesandtherecanbeanaddional
errorof0,015voltswhentheoperaontemperatureisbelow0°C.
-40C MODEL: OPERATION IN COLD ENVIRONMENT