HK Instruments DPT-Ctrl-MOD Series User manual

Copyright HK Instruments 2022 www.hkinstruments. Installaonversion8.02022
INSTALLATION
INSTRUCTIONS
Pressure and flow controllers
DPT-Ctrl-MOD 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-MOD series air han-
dling controller with dierenal pressure or airow transmier. The DPT-
Ctrl-MODseriesPIDcontrollersareengineeredforbuildingautomaonin
theHVAC/Rindustry.With thebuilt-incontrollerofthe DPT-Ctrl-MOD 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.
TheDPT-Ctrl-MODincludesanInputterminalthatenables the reading of
mulple signals such as temperature or control relays over Modbus. The
Input terminalhas oneinputchanneldesignedto accept 0−10V,NTC10k,
Pt1000,Ni1000/(-LG),andBININ(potenalfreecontact)signals.
DPT-Ctrl-MOD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:
ManualpushbuonorModbus
Response me:
1.0−20s,selectableviamenuorModbus
Communicaon
Protocol:MODBUSoverSerialLine
TransmissionMode:RTU
Interface:RS485
Byteformat(11bits)inRTUmode:
 Codingsystem:8-bitbinary
 Bitsperbyte:
  1startbit
  8databits,leastsignicantbitsent
  rst
  1bitforparity
  1stopbit
Baudrate:selectableinconguraon
Modbusaddress:1–247addressesselectablein
conguraonmenu
Technical Specicaons
Media compability:
Dryairornon-aggressivegases
Controller parameter (selectable via menu and
Modbus):
Setpoint0...2500(model2500)
 0...7000(model7000)
P-band 0...10000
I-gain 0...1000
D-factor0...1000
Pressure units (selectable via menu):
Pa,kPa,mbar,inWC,mmWC,psi
Flow units (selectable 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
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
Mounng:
2each4.3mmscrewholes,onesloed
Materials:
Case: ABS
Lid:PC
Pressure inlets: Brass
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
  Ifinputisselected,line2showsalso
  inputinformaon(forexample
  temperature)
Size:46.0x14.5mm
Electrical connecons:
4+4posionspring-loadedterminals
Wire:0.2–1.5mm2(16–24AWG)
Cable entry:
Strainrelief:M16
Knockout:16mm
Pressure ngs
5.2mmbarbedbrass
+Highpressure
−Lowpressure
Electrical
Supply voltage:
24VACorVDC,±10%
Power consumpon:
<1.0W
Output signal:
viaModbus
Control output:
0-10V
Input signal:
0−10V,NTC10k,Pt1000,Ni1000/(-LG)orBININ
Conformance
Meetstherequirementsfor:
  CE:  UKCA:
EMC:  2014/30/EU S.I.2016/1091
RoHS:  2011/65/EU S.I.2012/3032
WEEE:  2012/19/EU S.I.2013/3113
INTRODUCTION WARNING
APPLICATIONS
RoHS
COMPLIANT

Copyright HK Instruments 2022 www.hkinstruments. Installaonversion8.02022
SCHEMATICS
INSTALLATION
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.
Display connecon
A
B
24 V
GND
LEDs
Joysck1
Joysck2
Joysck3
Select
Up
Down
Menu buons
Terminal
blocks
Pressure
sensor
Input terminal
configuraon
jumpers
Control out
Input
GND
GND
Figure 1a - Mounng orientaon
YES NO NO
STEP 3: CONFIGURATION
2)Zeropointadjustment.Formoreinformaon,seeStep4.
PRESS. UNIT
Pa
SELECT
UP
DOWN
SELECT
ZERO SENSORS
SELECT
UP
DOWN
3)Selectthefunconingmodeofthecontroller:PRESSUREorFLOW.
-SelectPRESSUREwhencontrollingdierenalpressure.
Gotopoint3.1.
-SelectFLOWwhencontrollingairow.
Gotopoint3.2.0.
CONTROL UNIT
PRESSURE
SELECT
UP
DOWN
When control unit PRESSURE is selected.
3.1)Selectpressureunitfordisplayandoutput:Pa,kPa,mbar,inWCormmWC.
Thengotopoint4.
When control unit FLOW is selected.
3.2.0)Selectthefunconingmodeofthecontroller
-SelectManufacturerwhenconnecngDPT-Ctrl-MODtoafanwithpressure
measurementtaps.
-SelectCommon probewhenusingDPT-Ctrl-MODwithacommonmeasurement
probethatfollowstheformula:
 q=k∙√∆P(i.e.FloXact)
MANUFACTURER
Common probe
SELECT
UP
DOWN
Common probe Flakt Woods
SELECT
UP
DOWN
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2aand2b.
3)Tightenthestrainrelief.
Figure 2a - Wiring diagram
A
B
24 V
GND
+Power Supply
24VDC / 24VAC
Control out
Input
GND
GND
Modbus
Figure 2b - Wiring diagram example for input signals
Input
GND
ntc10k J1
J2
J3
IN
Input ntc10k temperature:
Funcon04-Readinputregister3x0007
3.2.1)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3.2.0:
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
FORMULA UNIT
l/s
SELECT
UP
DOWN
3.2.2)SelectK-value
a.Ifmanufacturerselectedinstep3.2.0:
EachfanhasaspecicK-value.SelecttheK-valuefromfanmanufacturer’sspeci-
caons.
K-VALUE
9000.000
SELECT
UP
DOWN
3.2.3)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
1)Presstheselectbuonfortwosecondstoopenthedevicemenu.
4)SelecttheaddressforModbus:1...247
ADDRESS
99
SELECT
UP
DOWN
ItisrecommendedtouseshieldedtwistedpaircableforModbuscabling.
Thecableshieldmustbeearthedonlyinonepoint,normally,attheendof
themaincable.

Copyright HK Instruments 2022 www.hkinstruments. Installaonversion8.02022
7)Selecttheresponseme:1...20s.
RESPONSETIME
4 s
SELECT
UP
DOWN
BAUD RATE
9600
SELECT
UP
DOWN
PARITY BIT
NONE
SELECT
UP
DOWN
5)Selectthebaudrate:9600/19200/38400.
6)Selecttheparitybit:None/Even/Odd
9)Selecttheinputtype.
Passivetemperaturesensors:PT1000/Ni1000/Ni1000LG/NTC10k
Voltageinput:VINPUT
Switchinput:BININ
Noinput:NONE
INPUT
PT1000
SELECT
UP
DOWN
10)Selectthesetpointofthecontroller(SP2isonlyavailablewithBININswitch
informaon):
CONFIGURATION CONTINUED
NOTE! Always zero the device before use.
Supplyvoltagemustbeconnectedonehourbeforethezeropointadjust-
mentiscarriedout.AccessviaModbusorbypushbuon.
1)Loosebothtubesfromthepressureinlets+and-.
2)Acvatethedevicemenubypushingthetheselectbuonfor2
seconds.
3)SelectZero sensorbypressingtheselectbuon.
4)WaitunltheLEDturnsoandtheninstalltubesagainforthe
pressureinlets.
STEP 4: ZERO POINT ADJUSTMENT
SELECT
STEP 5: INPUT SIGNAL CONFIGURATION
InputsignalscanbereadoverModbusviaDPT-MODRS485interface.
Signals Accuracy for measurement Resoluon
0...10V <0,5% 0,1%
NTC10k <0,5% 0,1%
Pt1000 <0,5% 0,1%
Ni1000/(-LG) <0,5% 0,1%
BININ(potenalfreecontact)
Thejumpersshould be set accordingtothe instruconsbelowandthe value
shouldbereadfromtherightregister.
Figure 3 - Input signal conguraon
J1
J2
J3
IN
J1
J1
J1
J2
J2
J2
J3
J3
J3
NTC10k / BIN IN
Pt1000 / Ni1000/(-LG)
0...10 V
D-VALUE
1.00
SELECT
UP
DOWN
15)Pushtheselectbuontoexitmenu.
SELECT
EXIT MENU SELECT
12)Selectproporonalbandaccordingtoyourapplicaon
specicaons.
P-VALUE
206
SELECT
UP
DOWN
13)Selectintegralgainaccordingtoyourapplicaonspecicaons.
I-VALUE
4.00
SELECT
UP
DOWN
14)Selectderivaonmeaccordingtoyourapplicaon
specicaons.
STEP 6: TEMPERATURE COMPENSATION
Thedeviceincludesanoutdoortemperaturecompensaonfunconthatcan
beenabledfromthemenu.Whenacvatedandanoutdoortemperaturesensor
isaached,theeecvesetpointofthedevicewillbemodiedtocompensate
forthecoldoutdoorair.Thismayresultinenergysavings.
If temperaturecompensaonis enabled, thedevicewill linearly decreasethe
user’s setpoint (REF FLOW/REF PRESSURE) by 0 % to TC DROP % from TC
START TE to TC STOP TE.
Thedeviceenforcesa+5°Cdierence betweenthe startand stoptempera-
tures.Thestarttemperaturemustbehigherthanthestoptemperature.
1)Connectandcongureanoutdoorairtemperaturesensor.Seestep5.
2)Enabletemperaturecompensaon.
4)Setthestoppingtemperatureforcompensaon.
TC STOP TE
-15 °C
SELECT
UP
DOWN
TEMP COMP
ON
SELECT
UP
DOWN
TC START TE
5 °C
SELECT
UP
DOWN
3)Setthestarngtemperatureforcompensaon.
5)Setthemaximumdroppercentageforcompensaon.
TC DROP %
25.0
SELECT
UP
DOWN
8)SelecttheFixedOutput(OFF/0...100%),(seestep7FixedOutput).
10.1)IftheCONTROLUNITisselectedPRESSURE.
SELECT
UP
DOWN
REF PRES SP1
10 Pa
REF PRES SP2
100 Pa
10.2)IftheCONTROLUNITisselectedFLOW.
SELECT
UP
DOWN
REF FLOW SP1
25.000 m3/s
REF FLOW SP2
35.000 m3/s
11)SelecttheTEMPCOMP(OFF/ON),(seestep6,TemperatureCompensaon).

Copyright HK Instruments 2022 www.hkinstruments. Installaonversion8.02022
Thesellerisobligatedtoprovideawarrantyofveyearsforthedelivered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pro-
duc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,improperstorage,in-
correctcareorreconstrucon,orchangesandinstallaonworknotdonebythe
seller.Theseleconofmaterialsfor devicespronetocorrosionis the buyer’s
responsibility,unlessotherwiseislegallyagreedupon.Shouldthemanufacturer
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
exchangecosts.Undernocircumstanceisthesellerliablefordamagescompen-
saonforindirectdamage.
Register Parameter descripon Data Type Value Range
4x0001 Manufacturer 16bit 0...8
0=FläktWoods
1=Rosenberg,
2=Nicotra-Gebhardt
3=Comefri
4=Ziehl-Abegg
5=ebm-papst
6=Gebhardt
7=Nicotra
8=Commonprobe
4x0002 Formulaunit(ifmanufacturer
selecon=commonprobe) 16bit 0...5 0=m3/s,1=m3/h,2=cfm, 3=l/s,4=m/s,5=f/min
4x0003 K-factorintegral 16bit 0...9999 0...9999
4x0004 K-factordecimal 16bit 0...999 0...999
4x0005 Responseme 16bit 0...20 0...20s
4x0006 PIDcontrolunit 16bit 0...1 0=Pressure,1=Flow
4x0007 PIDpressureref 16bit -250...2500(model2500)
-700...7000(model7000)
-250...2500(model2500)
-700...7000(model7000)
4x0008 PIDowrefinteger 16bit 0...30000 0...30000
4x0009 PIDowrefdecimal 16bit 0...999 0...999
4x0010 PIDpvalue 16bit 0...10000 0...10000
4x0011 PIDiinteger 16bit 0...1000 0...1000
4x0012 PIDidecimal 16bit 0...99 0...99
4x0013 PIDdinteger 16bit 0...1000 0...1000
4x0014 PIDddecimal 16bit 0...99 0...99
4x0015 Overdrivevalue 16bit 0...100 0...100%
4x0016 Overdriveacve 16bit 0...1 0=O,1=On
4x0017 Temperaturecompensaon 16bit 0…1 0=O,1=On
4x0018 Temp.comp.startTE 16bit -45…50 -45…50°C
4x0019 Temp.comp.stopTE 16bit -50…45 -50…45°C
4x0020 Temp.comp.dropintegerpart 16bit 0…99 0…99%
4x0021 Temp.comp.dropdecimalpart 16bit 0…999 0.0…0.999%
4x0022 PIDPressureRefSP1 16bit -250...2500(model2500)
-700...7000(model7000)
-250...2500(model2500)
-700...7000(model7000)
4x0023 PIDPressureRefSP2 16bit -250...2500(model2500)
-700...7000(model7000)
-250...2500(model2500)
-700...7000(model7000)
4x0024 PIDFlowRefSP1integer 16bit 0...30000 0...30000
4x0025 PIDFlowRefSP1decimal 16bit 0...999 0...999
4x0026 PIDFlowRefSP2integer 16bit 0...30000 0...30000
4x0027 PIDFlowRefSP2decimal 16bit 0...999 0...999
4x0028 Flowunit(displayandPIDSP) 16bit 0...5 0=m3/s,1=m3/h,2=cfm,
3=l/s,4=m/s,5=f/min
Funconcode03-Readholdingregister,Funconcode06-Writesingleregister,
Funconcode16-Writemulpleregisters
Funconcode05-Writesinglecoil
Register Parameter descripon Dat a Type Value Range
0x0001 Zeroingfuncon Bit0 0...1 0=O,1=On
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special-
izesinelectronicwaste.
STEP 9: MODBUS REGISTERS
RECYCLING/DISPOSAL
WARRANTY POLICY
Funconcode02-Readinputstatus
Register Parameter descripon Dat a Type Value Range
1x0001 Input:BININ Bit0 0...1 0=O,1=On
MODBUS REGISTERS CONTINUED
STEP 7: Fixed output
Fixedoutputsengscanbeenabledtosetthecontroloutputtoapresetvalue.Pri-
marypurposeofthisfunconalityistoenabletheadjustmentofairvalvesandter-
minalswithouttheDPT-Ctrlaecngtheductpressureorairow.Itcanalsoaidin
troubleshoongtheinstallaon.
1)Toenablethexedoutput,scrolltoitsposioninthemenu.
2)Presstheselectbuonandselectthedesiredxedoutputvalue.Theoutputwill
nowstayatthisvalueindenitely.Innormaloperaonmode(shownbelow),the
upperrowofthedisplaywillshowFIXEDxx%toindicatetheoutputisxed.
FIXED OUTPUT
OFF
SELECT
UP
DOWN
FIXED 50 %
184 Pa
3)Toenablethenormalcontroloutputanddisablethexedoutput,scrolltoits
posion,selectitandsetvaluetoOFF.
Fixed output funcon is also available via Modbus. (4x0016: Overdrive acve,
4x0015:Overdrivevalue)
Funconcode04-Readinputregister
Register Parameter descripon Dat a Type Value Range
3x0001 Programversion 16bit 0...1000 100...9900
3x0002 PressurereadingA 16bit -250...2500(model2500)
-700...7000(model7000)
-250...2500(model2500)
-700...7000(model7000)
3x0003 Input0...10V 16bit 0...100 0...100%
3x0004 InputPT1000 16bit -500...500 -50...+50°C
3x0005 InputNi1000 16bit -500...500 -50...+50°C
3x0006 InputNi1000-LG 16bit -500...500 -50...+50°C
3x0007 InputNTC10k 16bit -500...500 -50...+50°C
3x0008 Flowm3/s 16bit 0...10000 0...100m3/s
3x0009 Flowm3/h 16bit 0...30000 0...30000m3/h
3x0010 Flowcfm 16bit 0...30000 0...30000cfm
3x0011 Flowl/s 16bit 0...3000 0...3000l/s
3x0012 Velocitym/s 16bit 0...1000 0...100m/s
3x0013 Velocityf/min 16bit 0...5000 0...5000f/min
STEP 8: Using the 2SP-feature
2SP(setpoint)isafeaturewithabinaryinputtoselectbetweentwouser-adjustable
setpoints.Thedesiredsetpointcanbeselected,forexample,withweeklyclock,turn
switchorkeycardswitch.
1)SelectINPUT=>BININ. INPUT
BIN IN
SELECT
UP
DOWN
J1
J2
J3
NTC10k / BIN IN
2)Setthejumpersasshownbeside
 todeterminetheinputsignal.