No baffle-board ultrasonic heat meter
- “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.
- “ZY-DN20,ZY-DN25noreflectionplateultrasonicheatmeter”maintechniqueparameters
- Structure
·Flowsensor:straightthroughtypeinwallreflectionultrasonicflowsensorwithnoreflectionplatestandandbeampieces
·Temperaturesensor:PT1000temperaturesensorpair
·Opticalinterface,M-businterfacefordatacommunication
- Flow
- Ratedflow:1.5~3.5m³/h
- Ratedflowandminflowproportionis100.
- Temperatureandtemperaturedifference
- Temperaturemeasurementrange:4~95℃
- Temperaturedifference:3~90℃
- Thermalcoefficient:Alongwithinletandoutletwater
- Connectionmode
- Installationposition:inletoroutletasinstructed(optional)
- Connectiontype:threadedconnection
- Maxworkingpressure:1.6MPa
- Servicecondition
- Environmentcondition:ClassA
- Display
- Display:LCD,8digits,specialsymbols
- Dimension:kWh,MJ
- Resolution
(1)Heat:1kWhor1MJ
(2)Cumulativeflow:0.01m³
(3)Temperature:0.1℃
(4)Temperaturedifference:0.1K
- Datastorage
- Datastorage:ROM
- Storeatleast18months’data
- Intensityandtightness
- Nodamageandleakagewhenthemediumtemperatureis10℃lessthanthemaxworkingtemperatureandthepressureis1.6timesgreaterthanthemaxworkingpressure.
- Accuracy
- MeteringaccuracyisClass2
- Pressureloss
- Pressureloss＜10kPa(Industrialstandard:Maxallowedpressurelossis25kPa)
- Powersupply
- Built-inlithiumbattery(3.6VDC/3.8Ah),externalremotedataacquisitionsystempowersupplyispossible
- Batterylife:≥10years(Industrialstandard:built-inbatterylife＞5+1years)
- Workingcurrent:10~40μA
- 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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