ultrasonic calorimeter

4. “ZY-DN20,ZY-DN25noreflectionplateultrasonicheatmeter”techniquecharacters

(1)Theflowsensorisnoreflectionstructureusingmeasurementpipeinwallrefection

(2)Theflowmetersensorpipewithoutreflectionplatesupportandbeampiecesistotallystraightthrough,noblocking,nowear.

(3)Theflowmetersensorpipewithoutanyinternalpartwhichremovestheobstructionstowaterflowcausedbythereflectionplate,reflectionplatesupportandbeampiecesoftraditionalbasemeter,lowpressureloss,reducespressurelossoftheheatingdistributionsystem.

(4)Adoptingdualpowersupplytechnologyofbuilt-inbatteryandexternalremotecommunicationsystempowersupplyreducestheremotecommunicationeffectsonbuilt-inbatterylife.

(5)Boththeflowsensorpipeinwallandthetransducersurfaceadoptmetalchemicalanti-foulingdesignanddisposetoensuretheultrasonicsignalintensity.

(6)Featuresemptypipedetection(entersintodormantstateoutofheatingperiod)andautomaticwake-upfunction.

(7)TheprocessorusesMSP430dedicatedchipofAmericanTIcompany,ultra-lowpowerconsumption,modularfunction,lessperipheralcircuit.

(8)TheultrasonicsensordedicateddetectionchipadoptsTDC-GP2/GP21ofGermanyACAMcompany,withhighprecisionmeteringaccuracy.

(9)Adoptingintegratedlowpowerconsumptioncircuitdesignprolongsthebatteryworkinglifewiththeoreticworkinglifeover10years.

(10)ThehighprecisionPT1000platinumresistancepairtemperaturesensoradoptingGermanytemperature-sensingelementandKoreaproductiontechnologysatisfiesthemeteringaccuracyrequirements.

1. “ZY-DN20,ZY-DN25noreflectionplateultrasonicheatmeter”maintechniqueparameters
2. Structure

·Flowsensor:straightthroughtypeinwallreflectionultrasonicflowsensorwithnoreflectionplatestandandbeampieces

·Temperaturesensor:PT1000temperaturesensorpair

·Opticalinterface,M-businterfacefordatacommunication

2. Flow

• Ratedflow:1.5~3.5m³/h
• Ratedflowandminflowproportionis100.

3. Temperatureandtemperaturedifference

• Temperaturemeasurementrange:4~95℃
• Temperaturedifference:3~90℃
• Thermalcoefficient:Alongwithinletandoutletwater

4. Connectionmode

• Installationposition:inletoroutletasinstructed(optional)
• Connectiontype:threadedconnection
• Maxworkingpressure:1.6MPa

5. Servicecondition

• Environmentcondition:ClassA

6. Display

• Display:LCD,8digits,specialsymbols
• Dimension:kWh,MJ
• Resolution

(1)Heat:1kWhor1MJ

(2)Cumulativeflow:0.01m³

(3)Temperature:0.1℃

(4)Temperaturedifference:0.1K

7. Datastorage

• Datastorage:ROM
• Storeatleast18months’data

8. Intensityandtightness

• Nodamageandleakagewhenthemediumtemperatureis10℃lessthanthemaxworkingtemperatureandthepressureis1.6timesgreaterthanthemaxworkingpressure.

9. Accuracy

• MeteringaccuracyisClass2

1. Pressureloss

• Pressureloss＜10kPa(Industrialstandard:Maxallowedpressurelossis25kPa)

1. Powersupply

• Built-inlithiumbattery(3.6VDC/3.8Ah),externalremotedataacquisitionsystempowersupplyispossible
• Batterylife:≥10years(Industrialstandard:built-inbatterylife＞5+1years)
• Workingcurrent:10~40μA

2. Safetyrequirements

• Whenthepowersupplyisstoped,therecorddataofheat,cumulativeflowandcorrespondingtimebeforepoweroff.Canreformnormalmeteringafterpowerisrestored
• Themeteringcharacterswillnotbeaffectedwhenthemagneticinterferencestrengthisnotgreaterthan100KA/m
• TheenclosureprotectiongradeisIP54
• Accordingtorelevantnationalstandard,intheenvironmentconditionofdryheat,cooling,steadydamp-heat,cyclicdamp-heatandcryogenicstorage,whentheanalogparametersareinput,theheatmetercanworknormally.
• Accordingtorelevantnationalstandard,intheenvironmentconditionofline-voltagevariation,electricalfasttransient,electromagneticfield,electricsurge,powerfrequencymagneticfieldandelectrostaticdischarge,theheatmetercanworknormally.

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