HK Instruments DPT-CR-MOD Series User manual

INSTALLATION

INSTRUCTIONS

DIFFERENTIAL PRESSURE TRANSMITTERS

DPT-CR-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-CR-MODseriesdif-

ferenalpressuretransmier.DPT-CR-MODseriesisdesignedspe-

ciallyforcleanroommonitoring.Inaddiontodierenalpressure,

thedeviceenablesmonitoringtemperatureandrelavehumidity.

A 0…10 V voltage input of an external humidity and temperature

transmiercanbeconnectedtotheinputterminalofthedevice.In

thiscase,all three measuredvalues(dierenalpressure,relave

humidity,temperature)willbeshownsimultaneouslyonthedisplay.

Alternavely,apassivetemperaturesensorcanbeconnectedtothe

inputterminal.

DPT-CR-MOD is compable with Modbus serial communicaon

protocol.

DPT-CR-MODseriesdevicesarecommonlyusedinHVAC/R

systems for:

•pressure,temperatureandhumiditymonitoringincleanrooms

SPECIFICATIONS

Performance

Measurement range:

-250...2500Pa

Accuracy (from applied pressure):

Pressure<125Pa=1%+±2Pa

Pressure>125Pa=1%+±1Pa

(Including:generalaccuracy,linearity,

hysteresis,longtermstabilityandrepeonerror)

Input accuracy:

Temperature:±0.25°Ctypical@25°C+accuracyof

externaltransmier

Humidity:±0.5%rHtypical@25°C+accuracyof

externaltransmier

Overpressure:

Proofpressure:25kPa

Burstpressure:30kPa

Zero point calibraon:

ManualpushbuonorviaModbus

Response me:

1...20sselectableviamenu

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

Measuring units:

Selectableviamenu

(Pa,kPa,mbar,inchWC,mmWC,psi)

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x71.5x36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:pressuremeasurement

Line2:relavehumidityandtemperature(ifexternal

measurementsareconnected)

Electrical Connecons:

4+4springloadterminals,max1.5mm2

Cableentry:M20

Pressure ngs:

Maleø5.2mm

+Highpressure

-Lowpressure

Electrical

Supply voltage:

24VACorVDC±10%

Power consumpon:

<1.3W

Output signal:

viaModbus

Input signals:

Temperatureinput:0−10VorNTC10k,Pt1000,

Ni1000/(-LG)

RHinput:0−10V

Conformance

Meets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

APPLICATIONS

WARNING

RoHS

COMPLIANT

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

DPT

4.3

DPT

Display connecon

24 V

GND

LEDs

Joysck 1

Joysck 2

Joysck 3

Select

Down

Menu buons

Terminal

blocks

Pressure

sensor

Input terminal

conﬁguraon

jumpers

Input 1

Input 2

GND

InputOutput

YES NO NO

Stac pressure Filter/Damper

monitoring

Fan/Blower

monitoring

Not

connected

STEP 2: WIRING DIAGRAMS CONFIGURATION CONTINUED

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

Figure 2b - Wiring diagram example for input signals

NOTE! Always zero the device before use.

Supplyvoltagemustbeconnected one hourbeforethe zeropoint

adjustmentiscarriedout.AccessviaModbusorbypushbuon.

1)Loosebothtubesfromthepressureinlets+and-.

2)Presstheselectbuonbriey.

3)WaitunltheLEDturnsoandtheninstalltubesagainforthe

pressureinlets.

STEP 3: CONFIGURATION

Input 1

Input 2

GND

Pt1000

IN1 IN2

Input 1: Pt1000 temperature sensor

Funcon 04 - Read input register 3x0005

Input 2: Relave humidity 0...10 V

Funcon 04 - Read input register 3x0026

Example 1:

Temperature sensor and rH-transmier connected to DPT-CR-MOD

rH-transmier rH 0...10 V

Jumper sengs

Input 1

Input 2

GND

IN1 IN2

Input 1: Temperature 0...10 V

Funcon 04 - Read input register 3x0020

Input 2: Relave humidity 0...10 V

Funcon 04 - Read input register 3x0026

Example 2:

rH/Temp-transmier connected to DPT-CR-MOD

rH/Temp-

transmier

rH 0...10 V

Jumper sengs

Temp 0...10 V

1)AcvatethedeviceMenubypushingthetheselectbuonfor2

seconds.

2)SelecttheaddressforModbus:1...247

BAUD RATE

9600

SELECT

DOWN

ADDRESS

SELECT

DOWN

PARITY BIT

NONE

SELECT

DOWN

3)Selectthebaudrate:9600/19200/38400.

4)Selecttheparitybit:None/Even/Odd

9)Pushtheselectbuontoexitmenu.

SELECT

EXIT MENU SELECT

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%typical 0.1%

NTC10k <0.5%typical 0.1%

Pt1000 <0.5%typical 0.1%

Ni1000/(-LG) <0.5%typical 0.1%

Thejumpersshouldbesetaccordingtotheinstruconsbelowandthe

valueshouldbereadfromtherightregister.Bothinputscanbecong-

uredindependently.

Figure 3 - Input signal conguraon

IN1 IN2

NTC10k

Pt1000 / Ni1000(-LG)

0...10 V

24 V

GND

+ Power Supply

24VDC / 24VAC

Input 1

Input 2

GND

Modbus Temp

6)Selecttheresponseme:1...20s

RESPONSETIME

4 s

SELECT

DOWN

5)Selectthepressureunitfordisplay:

 Pa/kPa/mbar/mmWC/inchWC/psi

PRESS. UNIT

SELECT

DOWN

TEMPERATURE

0...10V

SELECT

DOWN

TEMP. UNIT

CELSIUS

SELECT

DOWN

8)Selectthetemperatureunitfordisplay:Celsius/Fahrenheit

7)Selectthetemperaturemeasurementtype:

0...10V/NTC10K/NI1000LG/NI1000/PT1000

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,nor-

malwearandtear,improperorcarelesshandling,abnormaluse,over-

loading,improperstorage,incorrectcareorreconstrucon,orchanges

and installaonwork notdoneby the seller.Theseleconof materi-

als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de-

liveryandstatedinthecontract.Thesellerwillgiveanewwarrantyfor

goodsthathavebeenreplacedorrepairedwithinthewarranty,how-

ever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compensaonforindirect

damage.

3x0001 Programversion 16bit 0...1000 0.00...99.00

3x0002...0004 Not in use

3x0005 TemperatureCelsius:Pt1000 16bit -500...500 -50.0...+50.0°C

3x0006 TemperatureCelsius:Ni1000 16bit -500...500 -50.0...+50.0°C

3x0007 TemperatureCelsius:Ni1000-LG 16bit -500...500 -50.0...+50.0°C

3x0008 TemperatureCelsius:NTC10k 16bit -500...500 -50.0...+50.0°C

3x0009...0013 Not in use

3x0 014 PressurereadingPa 16bit -2500...25000 -250.0...2500.0Pa

3x0015 PressurereadingkPa 16bit -2500...25000 -0.2500...2.5000kPa

3x0016 Pressurereadingmbar 16bit -2500...25000 -2.500...25.000mbar

3x0017 PressurereadinginWC 16bit -1003...10030 -1.003...10.030inWC

3x0018 PressurereadingmmWC 16bit -2549...25490 -25.49...254.90mmWC

3x0 019 Pressurereadingpsi 16bit -362...3625 -0.0362...0.3625psi

3x0020 Temperature0...10Vat0...50°C 16bit 0...500 0.0...50.0°C

3x0021 TemperatureFahrenheit:

0...10Vat0...50°C 16bit 32...1220 32.0...122.0°F

3x0022 TemperatureFahrenheit:Pt1000 16bit -580...1220 -58.0...122.0°F

3x0023 TemperatureFahrenheit:Ni1000 16bit -580...1220 -58.0...122.0°F

3x0024 TemperatureFahrenheit:Ni1000-LG 16bit -580...1220 -58.0...122.0°F

3x0025 TemperatureFahrenheit:NTC10k 16bit -580...1220 -58.0...122.0°F

3x0026 Relavehumidity0...10Vat0...100% 16bit 0...1000 0.0...100.0%rH

Funcon04-Readinputregister

Funcon05-Writesinglecoil

0x0001 Zeroingfuncon Bit 0 0...1 On-O

STEP 6: MODBUS REGISTERS

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.

HK Instruments DPT-CR-MOD Series User manual

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