ROOTS Vapor Recovery Meters - Power Equipment Company

ROOTS ® Vapor Recovery MetersSeries A-8C175 VRM MEX ROOTS ® meterSince 1975, ROOTS ® Vapor Recover Meters haveset the standard for California Air ResourcesBoard (CARB) approved Gas Volume Meters.The ROOTS ® VRM is designed for, tested andapproved by CARB. As Air Resources Boardspecifications change, we quickly respond withproduct enhancements to maintain our approvalto Executive Order G-070, Source Test ProcedureST-39 – Regulation 8-7-302, and other associatedTest Procedures such as TP-201.1,TP-201.1A,TP-201.2,TP-201.3,TP-205 and TP-201.5.Our 8C175 ROOTS ® PX has a non-compensated,high frequency pulse transmitter using Solid Stateconstruction to eliminate mechanical switches formaximum reliability and minimized maintenance.A mechanical odometer is not included. Themeter maximum base rated capacity is 800 CFH.The 3M175 ROOTS ® Vapor Recovery Meterhas a direct reading odometer-type index withminimum increments of 0.02 cubic feet forminimum readability of 0.01 cubic feet. Precisionis ± 2 percent of the gas volume reading, orbetter. It is available with a low frequency(TPWS) or high frequency pulse output (CEX).The meter maximum base rated capacity is3,000 CFH.Features•Provides a non-compensated,high frequency pulse output• Designed for accuratemeasurement in low pressurerecovery systems• Electrical output signal ensuresmaximum reliability by using SolidState construction to eliminatemechanical switches•Available in two models: 8C175and 3M175Series B3-3M VRM CEXROOTS ® meterGDF Apparatus requires a low pressuredrop across the Gas Volume Meter. Theextremely low pressure drop characteristicof the ROOTS ® rotary positive displacementmeter makes it the most suitablefor these specialized applications. Our3M175 VRM does not exceed 1.10 inchesH2O at 3,000 CFH or 0.05 inches H2Oat a flowrate of 30 CFH.The 8C175 VRMdoes not exceed 0.70 inches H2O at 800CFH or 0.04 inches H2O at a flow rateof 16 CFH.All ROOTS ® Vapor Recovery Metersare supplied with a 7-point certifiedaccuracy curve resulting from testson a bell prover certified by NMi anddimensionally traceable to the NationalInstitute of Standards and Technology(NIST) and NMi.

Specifications: 8C VRM ROOTS ® meterUnits ImperialTemperature Range deg. F -40° to +140°Base Rating (Q max) acfh 800Max. Operating Pressure (MAOP) psig 175Leak Test (125%) (MAOP) psig 219Static Test ( 2 x MAOP) psig 350Rangeability (+/- 1%) ratio 22 : 1Rangeability (+/- 2%) ratio 67 : 1Start Rate cfh 1.13Stop Rate cfh 0.92Flow Rate @ 0.5" w.c., Gas cfh 696Differential,100% Flow in. w.c. 0.64Max. Pressurization Rate(*) psig/sec 5Max. Operating Speed rpm 3600Gear Ratio ratio No counterDisplaced Volume / Rev. cf 0.003703Pulse per Unit 1 cf = 270 pulsesOil - Not requiredNominal Pipe Size in. 1-1/2 NPTNet Weight lbs. 6For years, Dresser ROOTS ® Meters havebeen the preferred Vapor Recovery Meterto measure the volumetric flowratethrough the A/L adapter.HAZARDOUS LOCATIONINSTALLATION MUST BE IN ACCORDANCE WITH ANSI/ISA RP 12.6CNOTE:SIG CH–BACCESSORY MODEL R-3D FOR USE WITHROOTS ® GAS METERS MODEL aMba = FLOW RATE (MCFH) 1.5, 2, 3, 5, 7, 11, 16, 23, 38, 56 OR 102b = RATED PRESS (PSIG) 125, 175 OR 200INSTALL IN ACCORDANCE WITH THE BARRIER MANUFACTURESINSTRUCTIONS OR INSTALL IN ACCORDANCE WITH STAHLINSTRUCTION NUMBER RST 44 3/92HAZARDOUS LOCATIONMAG–COUPLED EL–XMTRACCESSORY MODEL R–3D+8 TO +16 VDC REDINSTALLATION MUST BE IN ACCORDANCE WITH ANSI/ISA RP 12.6CCOMSIG CH–AMAG–COUPLED EL–XMTRACCESSORY MODEL R–3BLACKWHITEBLUE3 1423 1423 142TYPICAL FIELD WIRING FOR ROOTS R–3DELECTRONIC TRANSMITTER WITH STAHL9001/01 –199–150–10 BARRIERSGROUNDING BUSNON – HAZARDOUS LOCATIONTYPICAL FIELD WIRING FOR ROOTS R–3DELECTRONIC TRANSMITTER WITH STAHL9001/01 –199–150–10 BARRIERSNON – HAZARDOUS LOCATION+8 TO +16 VDCCOM ASSOCIATEDAPPARATUSSIG IN CH–ASIG IN CH–BNOTE:SIGACCESSORY MODEL R-3 FOR USE WITHROOTS ® GAS METERS MODEL aMba = FLOW RATE (MCFH) 1.5, 2, 3, 5, 7, 11,16, 23, 38, 56, 102 OR 3.6b = RATED PRESS (PSIG) 125, 175, 200 OR 600 (3.6M ONLY)INSTALL IN ACCORDANCE WITH THE BARRIER MANUFACTURESINSTRUCTIONS OR INSTALL IN ACCORDANCE WITH STAHLINSTRUCTION NUMBER RST 44 3/92+8 TO +16 VDCCOMREDBLACKWHITE3 1423 142GROUNDING BUSMAXIMUM SAFE AREA VOLTAGE 250 V RMSFIELD WIRING DIAGRAMR–3, R–3D TRANSMITTERSINSTALLATIONS+8 TO +16 VDCCOM ASSOCIATEDAPPARATUSSIG IN CH–ACSKB83062-002DRAWING NUMBERB050843

Specifications: 3M VRM ROOTS ® meterUNITS ImperialTemperature Range deg. F -40 to +140Base Rating (Q Max.) acfh 3000Max. Operating Pressure (MAOP) psig 175Leak Test (125% MAOP) psig 219Static Test (2 x MAOP) psig 350Rangeability +/- 1% ratio 76:1Rangeability +/- 2% ratio 139:1Start Rate cfh 2.1Stop Rate cfh 1.8Flow Rate @ 0.5” w.c., Gas cfh 2580Avg. Differential, 100% Flow in. w.c. 1.05Max. Pressurization Rate psig/sec 5Max. Operating Speed rpm 2000Gear Ratio ratio 400:1Displaced Volume/Revolution cf 0.025Nominal Pipe Size in. 2Flange-to-Flange in. 6-3/4Flange Connection ANSI 150#FFBolts per Flange qty. 4Bolt Size 1 in. 5/8 - 11Flange Bolt Hole Depth in. 15/16Bolt Torque: Lubricated/Non-Lub. ft.-lb. 55/60Oil Capacity – Side Inlet oz. 1.251Oil Capacity – Top InletBolt Length varies by application.oz. 7.65HAZARDOUS LOCATIONINSTALLATION MUST BE IN ACCORDANCE WITH ANSI/ISA RP 12.6OR NEC ANSI/NFPA 79, ARTICLE 504.FOR INSTALLATION IN CANADA, INSTALL IN ACCORDANCE WITH THECANADIAN ELECTRICAL CODE, PART 1.MAG COUPLED EL-XMTRACCESSORY MODEL CEXUSE CSA APPROVED POSITIVE BARRIERSHAVING THE FOLLOWING PARAMETERS:28 Vdc (Max), 300 ohms (Min)EXAMPLE: MTL787S(CONNECTIONS SHOWN IN DIAGRAM)NON-HAZARDOUS LOCATIONMAXIMUM SAFE AREA VOLTAGE 250V RMSCAUTION: ASSOCIATED APPARATUS MUST NOTSUPPLY VOLTAGE EXCEEDING 30 VOLTSOR CURRENT IN EXCESS OF 10 MILI-AMPSJ112ABSIGCOM(WHT)(BLKSHIELD341MTL787S2SHIELDGROUNDING BUSASSOCIATED APPARATUS+3 TO +30 VDC,

Technical Data: 8C VRM ROOTS ® MeterDIMENSIONS8C VRM C L M N O P R Approx. WeightVRCPX 8.18 3.55 3.40 1.23 3.31 4.75 1.66 5.2 lbSIDEVIEWINLET1 - 18 NPT - 2 PLUGS4SENSOR HOUSING34- 16 UNF-2B121 - 11 NPTFRONTVIEWPR O OTSMODELB/MSERIAL8 CNO.1 cf =270 pulsesRPMAXQMAXDRESSER, INC.HOUSTON, TEXAS, U.S.AMET E RGASFLOWSIGHT GLASS34 - 16 UNF-2BMade in U.S.A.MeasurementPLUG- 16 UNC-2BPLUG34 - 16 UNF-2BDISCHARGEN34CMLORThis is an Oil Free MeterDrawing BO57797-000DIMENSIONS3M VRM C L M N O P R Approx. WeightVRCPX 18.03 5.66 12.375 7 6.97 6.75 3.48 26.5 lbs5/8-11 UNC-2B X 15/16 FULL THRDZ = NO. OF HOLESWINLETDISCHARGEXYORPNMLCTo order:Specify meter Series, Size and Type (i.e. 3M175 VRM Series B3 ROOTS ® meter).8C175PX, 8C175CTR, 3M175CTR, 3M175 CPWS*, 3M175CEX.*Specify Single or Dual Connectors and Connector Type (MS Circular, Conduit or Cable Gland).8C15CTR VRM is available but is not currently CARB approved.Contact the Factory for other available information, options, or special requests.Drawing D054670-000Dresser Roots Meters & InstrumentsPower Equipment Company2011 Williamsburg Road, Richmond, VA 23231website: www.peconet.comDresser, Inc.US Ph: 804-236-3800 Fax: 804-236-3882©2005 Dresser, Inc.ROOTS is a registered trademark of Dresser, Inc.TS:8CVRM/3MVRM4.05