HK Instruments DPT-Ctrl-MOD Series User manual

Copyright HK Instruments 2018 www.hkinstruments. Installaon version 5.0 2018
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):
Pressure<125Pa=1%+±2Pa
Pressure>125Pa=1%+±1Pa
(Accuracyspecicaonsinclude:generalaccuracy,
linearity,hysteresis,longterm
stability,andrepeonerror)
Thermal eects:
Temperaturecompensated0...50°C
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
P-band0...10000
I-me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
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
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(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
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
COMPANY WITH
MANAGEMENT SYSTEM
CERTIFIED BY DNV GL
= ISO 9001 = ISO 14001 =
RoHS 2
2011/65/EU

Copyright HK Instruments 2018 www.hkinstruments. Installaon version 5.0 2018
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
1)Zeropointadjustment.Formoreinformaon,seeStep4.
PRESS. UNIT
Pa
SELECT
UP
DOWN
When control unit FLOW is selected.
2.2.0)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)
SELECT
ZERO SENSOR
SELECT
UP
DOWN
2)Selectthefunconingmodeofthecontroller:PRESSUREorFLOW.
-SelectPRESSUREwhencontrollingdierenalpressure.
Gotopoint2.1.
-SelectFLOWwhencontrollingairow.
Gotopoint2.2.0.
CONTROL UNIT
PRESSURE
SELECT
UP
DOWN
When control unit PRESSURE is selected.
2.1)Selectpressureunitfordisplayandoutput:Pa,kPa,mbar,inWCor
mmWC.Thengotopoint3.
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
2.2.1)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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
FORMULA UNIT
l/s
SELECT
UP
DOWN
2.2.2)SelectK-value
a.Ifmanufacturerselectedinstep1:
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
2.2.3)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

Copyright HK Instruments 2018 www.hkinstruments. Installaon version 5.0 2018
6)Selecttheresponseme:1...20s.
RESPONSETIME
20 s
SELECT
UP
DOWN
3)SelecttheaddressforModbus:1...247
BAUD RATE
9600
SELECT
UP
DOWN
ADDRESS
99
SELECT
UP
DOWN
PARITY BIT
NONE
SELECT
UP
DOWN
4)Selectthebaudrate:9600/19200/38400.
5)Selecttheparitybit:None/Even/Odd
7)Selecttheinputtype.
Passivetemperaturesensors:PT1000,NTC10k,Ni1000LG,Ni1000
Voltageinput0–10V:Vinput
Noinput:None
INPUT
PT1000
SELECT
UP
DOWN
8)Selectthesetpointofthecontroller.
REF FLOW
0.025 m3/s
SELECT
UP
DOWN
REF PRESSURE
100 Pa
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 / Ni10007(-LG)
0...10 V
D-VALUE
1.00
SELECT
UP
DOWN
12)Pushtheselectbuontoexitmenu.
SELECT
EXIT MENU SELECT
9)Selectproporonalbandaccordingtoyourapplicaon
specicaons.
P-VALUE
206
SELECT
UP
DOWN
10)Selectintegraonmeaccordingtoyourapplicaon
specicaons.
I-VALUE
4.00
SELECT
UP
DOWN
11)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

Copyright HK Instruments 2018 www.hkinstruments. Installaon version 5.0 2018
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...7 0...7
4x0002 Formulaunit(Manufacturer=7) 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...1
4x0007 PIDpressureref 16bit 0...2500 0...2500
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...1
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%
Funconcode03-Readinputholdingregister
Funconcode05-Writesinglecoil
Register Parameter descripon Data Type Value Range
0x0001 Zeroingfuncon Bit0 0...1 On-O
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 8: MODBUS REGISTERS
RECYCLING/DISPOSAL
WARRANTY POLICY
Funconcode02-Readinputstatus
Register Parameter descripon Data Type Value Range
1x0001 Input:BININ Bit0 0...1 On-O
MODBUS REGISTERS CONTINUED
STEP 7: Fixed output
Fixedoutputsengscanbeenabledtosetthecontroloutputtoapresetvalue.
Primarypurposeofthisfunconalityistoenabletheadjustmentofairvalves
andterminals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 Data Type Value Range
3x0001 Programversion 16bit 0...1000 100...9900
3x0002 PressurereadingA 16bit -250...2500 -250...2500Pa
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