EldridgeProducts, Inc.haspursued innovationandexcellence in thermaldispersiongasmassflowmeasurementsince1988.Thermalflowmetersoffersimple, lowcostoperation for accurate, economical and reliable gas flowmeasurement for variousapplications - Compressed Air, Biogas, Natural gas, Aeration, Digesters, Landfills,HVACsystems—virtuallyanygasflowapplication.Master-Touch™flowmeterscansolveyourgasmeasurementchallenges.Master-Touch™Series9700MPFlowMetersare foruse inhazardousarea locations(Flamepooflocations),CertifiedtoCSA/CUS,ATEX,IECEx,KOSHAstandards.Inlinestylethermalmassflowmeters includeaflowsectionthatisusuallyspecifiedtomatchtheuser’sflowconduitandisthenplumbeddirectlyintothe process line. This design has the sensing elementsmounteddirectlyontheflowsectionforexposuretotheprocessgas.Ourinlinestyleflowaveragingthermalmassflowmetersareavailableinsizesfrom2"pipethrough6"pipe and are provided with flanged end configurations.Pipesizes inexcessof6" typically require insertionstylethermalmassflowmeters.

Integral style thermal mass flowmeters all of thecomponents and connections are located within theenclosure.TheenclosureisExplosionproof(Flameproof)ratedforuseinhazardousarealocations.Theenclosureismounted directly to the insertion probe assembly. Theenclosurecontainstheelectricalconnections,signalprocessingelectronicsandtheLCDdisplay,withprogrammingkeypad.

OurpatentedFlowAveragingTubes™(FAT™)ThermalmassflowmetersgenerallyfollowKing’sLaw, and use the principle of convective heat transfer to directly measure mass flow. EPI’sproprietary thermalmass flow sensorsuse twopreciselymatched, reference-gradeplatinumResistanceTemperatureDetectors(RTDs).Thesensorelementsarehermeticallysealedin316LStainless Steel (or optional Hastelloy C276) thin wall sheaths. Our microcontroller operatedsmartsensortechnologypreferentiallyheatsoneRTD;theotherRTDactsasthetemperature

reference. The process gas flow dissipates heat from the first RTD,causing an increase in the power required to maintain a balancebetweentheRTDs.Thisincreaseisdirectlyrelatedtothemoleculargasflowrate.Oursensorsaretemperaturecompensatedforawideprocessgas temperature range and insensitive to pressure changes, therefore

theflowmeteroutputisadirectmassflowratevalue.Wellsuitedforapplicationswithlimitedstraightrun.Up-streamstraightruncanbereducedtothreediameters.Probehasanumberoflargediameterinletportsalongthelength.Thepressureateachinletportisaveragedtocreatethe axial flow across our flow sensor. The gas returns to themain flow stream through thereturnport.Theactualflowprofilemaystillsomerequireminoradjustmenttoachievethebestaccuracy.

SpecificationsLinearsignaloutput................................................0–5VDC&4–20mA(FlowandTemperature)EventRelays(Two).................................................1Amp@30Vdc Eventselectablefunctions(seeManual)CommunicationProtocols.......................................RS232&RS485ModbusRTUorBACnet

OptionalHARTorProfibusDPDisplayLCD2-line16-character..............................Rate,Total,milliwatts,Temperature,EventAccuracyincludinglinearity(Ref.:21°C)*...............±(1%ofReading+0.5%ofFullScale+GTC)Repeatability..........................................................±0.2%ofFullScaleSensorresponsetime..............................................1secondto63%offinalvalueTurndownratio.......................................................100:1;10SFPM(0.05NMPS)MinimumWithstandsAmbienttemperature(electronics).....-40°to158°F(-40°to70°C)SuitableProcessGastemperaturerange**............-40°to392°F(-40°to200°C)Gastemperaturecoefficient(GTC).........................0.02%FullScale/°CGaspressureeffect.................................................Negligibleover±20%ofabsolute

calibrationpressurePressureratingmaximum.......................................500PSIStd.Inputpowerrequirement.......................................6Watts 24VDC@250mA 120VAC50/60Hzoptional 240VAC50/60HzoptionalFlowMeterpowerrequirements............................5wattsmaximumDate/TimeRAMBack-up.........................................LithiumButtonCell,ten-yearlife,Quantity1Wettedmaterials....................................................316LStainlessSteel(OptionalHastelloyC276)Standardtemperature&pressure(STP).................70°F&29.92"Hg(Air0.075lb./cubicfoot) Optional0°C&1.0132BarA(Air0.081lb./cubicfoot)OruserspecifiedSTPattimeoforderNISTtraceablecalibration......................................Yes*EPIisnotresponsibleformeasurementerrorsduetoflowprofileirregularitiescausedbyinstallation,pipingconfigurationssurfacecorrosionorscale,valveplacement,etc.**Specifyaverageprocessoperatingtemperature,withhigh&lowlimits.

NOTE:Specificationssubjecttochangewithoutnotice.Consultourwebsite,www.epiflow.com,attimeoforder.

NOTE:EldridgeTerms&Conditionsforsalesavailableonourwebsite,www.epiflow.com.

CertificationChoicesCSA/CUS,ATEX,IECEx,KOSHA(specifypreferenceattimeoforder)