Gear Type Flow Meter VC - KRACHT Corp

1 Gear Type Flow MeterVC Gear Type Flow Meter VCKRACHT CORP. 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 Housing2 Cover3 Gear4 Preamplifier5 Connector6 Sensor7 Bearing assembly The measuring gears are driven by the liquid flow on the principle of a gear motor. The gears run without contact in the measuring chamber. The bearing elements are low-friction ball or plain bearings. The movement of the gears is sampled without contactby means of two sensors located in the cover. Between sensor compartment and measuring chamberis located a pressure-resistant, non-magnetic separatorplate. When the measuring mechanism rotates by one tooth pitch, the sensor emits a signal which correspondsto the geometrical tooth volume Vgz. The signal is converted into a square-wave signal by the preamplifier. The two-channel sampling permits better resolution as well as recognition of the flow Type Flow Meter VCConstruction and FunctionKRACHT CORP.

2 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 Type Flow Meter VCTypical ApplicationsApplicationMediumVersionSeri esFlow rate measurementoil, brake fluid, skydrol, dieselcast iron(hydraulic test stand)lubricatingball bearingslow viscosityminimal clearances1 Oil meteringgear oilcast iron(metering plant)lubricatingball bearingsmedium viscosityincreased clearances2 Consumption measurementoffset inkcast iron(Printing press)lubricatingbronze plain bearingshigh viscositylarge clearances3 Ratio controlpolyol + isocyanate, adhesives, resin, siliconcast iron(2 component plant)low lubricitycarbide plain bearingsmedium viscosityincreased clearances4 Batching controlclear lacquer, cavity waxesstainless steel(lacquering plant)low lubricitycarbide plain bearingsmedium viscosityincreased clearances5 Flow rate measurementsolventstainless steel(lacquering plant)lubricatingball bearingslow viscosityminimal clearances6 For fluids with a low viscosity and poor lubricity a hybrid ball bearing (with ceramic balls)is a available for sizes VC , VC , VC and VC meters with hydrid ball bearing are available in cast iron (series 7) and stainless steel (series 8).

3 Product Characteristics Optimized for individual applications because the series have been rendered media-specific by means of differing clearances, bearing variantsand materials. Wide measuring ranges with sizes graduated tomeet specific requirements. Measurement independent of viscosity within the specified ranges Low pressure drop High-response measurement High working pressure Low noise emission High-precision measurement with outstanding reproducibility Temperature-independent output signals over a widetemperature range High degree of accuracy, even with low flow rates at the bottom end of the measuring range High working reliability of the electronics Easy to use terminal of the preamplifier Working indication of the electronic Sensor system and preamplifier in EMC-compatible design Explosion-proof version available for all volume countersKRACHT CORP. 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 Characteristics The accuracy figures quoted by KRACHT refer to the geometric tooth volume Vgz, that is to say the percentage deviation applies to the current value in each case.

4 The linearity error over the entire measuring range is < % Reproducibility of a measured value is < % + %Vgz= % + %Vgz= % Accuracy checking forms part of quality inspection in every case. On request the result of the test will be documentedin the form of an accuracy characteristic curve; an example relating to a series 1 VC 1 is given below. The accuracy values quoted by KRACHT are confirmedby the DKD (German Calibration Service).Volume per pulseVolume per pulseFlow rate QGPMFlow rate QGPMcm3cm3 Gear Type Flow Meter VCKRACHT CORP. 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 Type Flow Meter VCKRACHT CORP. 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 CharacteristicsDesign gear motorConnection type plate mounting / pipe connectionMounting positionoptionalFlow directionoptionalViscosity cSt, (according to series)Max.

5 Pressure drop pmax= 16 bar / 230 psiWorking working pressurePeak pressureSound Resolutionsizetooth-Standard-High pressureStandard- High pressurepressurevolumeversionversion (/79)versionversion (/79)levelVgZpmaxpmaxp^p^LAImpulse / lcm3bar / psibar / psibar / psibar / psi dB (A)Impulse / / 5800 480 / 6960 < 6040, , / 5800 480 / 6960 < 6025, , / 5800 480 / 6960 < 6010, , / 5800 480 / 6960 < 604, , / 5800 480 / 6960 < 702, , / 5800 480 / 6960 < , / 4570400 / 5800350 / 5080480 / 6960< , / 4570400 / 5800350 / 5080480 / 6960< / 5800 480 / 6960 < / 5800 480 / 6960 < Type Flow Meter VCKRACHT CORP. 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 Temperature RangesSealing materialsSeriesFKMEPDMFEPFFKMA mbient temperature-- 15 C .. + 80 C-- 30 C .. + 80 C-- 30 C .. + 80 C-- 15 C .. + 80 C+ 5 F .. + 176 F-- 22 F.

6 + 176 F-- 22 F .. + 176 F+ 5 F .. + 176 F1, 2, 6, 7, 8-- 15 C .. + 120 C-- 30 C .. + 120 C-- 30 C .. + 120 C-- 15 C .. + 120 CMedium temperature+ 5 F .. + 248 F-- 22 F .. + 248 F-- 22 F .. + 248 F+ 5 F .. + 248 Ffor standard version3, 4, 5--15 C .. +80 C--30 C .. +80 C--30 C .. +80 C--15 C .. +80 C+ 5 F .. + 176 F-- 22 F .. + 176 F-- 22 F .. + 176 F+ 5 F .. + 176 F1, 2, 6, 7, 8-- 15 C .. + 150 C-- 30 C .. + 130 C-- 30 C .. + 150 C-- 15 C .. + 150 CMedium temperature+ 5 F .. + 302 F-- 22 F .. + 266 F-- 22 F .. + 302 F+ 5 F .. + 302 Ffor high temperature version3, 4, 5on requeston requeston requeston requestfor high temperature PLUS version1, 2, 6, 7, 8-- 15 C .. + 150 C -- 30 C .. + 220 C*-- 15 C .. + 220 C*+ 5 F .. + 302 F-- 22 F .. + 428 F*+ 5 F .. + 428 F*1, 2, 6, 7, 8--15 C .. +80 C--30 C .. +80 C--30 C .. +80 C--15 C .. +80 CMedium temperatur+ 5 F.

7 + 176 F-- 22 F .. + 176 F-- 22 F .. + 176 F+ 5 F .. + 176 Ffor-version3, 4, 5--15 C .. +80 C--30 C .. +80 C--30 C .. +80 C--15 C .. +80 C+ 5 F .. + 176 F-- 22 F .. + 176 F-- 22 F .. + 176 F+ 5 F .. + 176 Ffor -version 1, 2, 6, 7, 8 -- 30 C .. + 200 Chigh temperature PLUS-- 22 F .. + 392 F*for sizes VC .. VC max. +180 C / + 356 FSeries Selection / Summary of VariantsSeries12345678 Material housingSpheroidal cast ironSpheroidalSpheroidalSpheroidalstainl essstainlessSpheroidalstainlessEN-GJS-40 0-15cast ironcast ironcast ironsteelsteelcast ironsteel(/79 EN-GJS-600-3)EN-GJS-400-15EN-GJS-400-15 gearssteelsteelsteelsteelstainless steel stainless steelsteelstainless bearingsball bearingsbronze-carbidecarbidestainless steelhybridhybridplain bearingsplain bearingsplain bearingsball bearingsplain bearingsball bearigsConnectionPPPPP/RP/RPP/RMax. perm. foreign particle2030503030202020size in the medium ( m)Accuracy % % 1 % % % % 1 % 1 %(from measuring value)at 20 cStat 50 cSt at 100 cSt at 100 cSt at 100 cSt at 20 cSt at 20 cSt at 20 cStNominalStarting Measuring rangesizepoint atl/ - 2 2* - - - - - * - - - - 4 - - - - - - - 8 - 8 - - - - - - - - - - 16 - - - - - - - - - - - 40 - 30 - - - - - - - - - - 160 - - - 160 - - - - - - 2501 801 - 1601 - 1601 - 250 - - - - - - - 600 - - 700 - 185*Measuring accuracy 3 %.

8 Linearity %Gear Type Flow Meter VCSpecial VersionsSpecial IDSeriesDescription551 8version with aluminium connection box and preamplifier VV12with Cannon plug711 8version with Hirschmann connector and round connector M 12 x 1741 8version with Hirschmann connector and preamplifier VV12for 12 Volt power supply ( 16 Volt)791VC 3 and VC 5 in high pressure version (400 bar / 5800 psi)1551VC 3 and VC 5 in high pressure version (400 bar / 5800 psi)Skydrol resistant, with aluminium connection box and Cannon resistant, with aluminium connection box and Cannon KeyOrdering exampleVC F1P S / ..Special ID (-- 30 C .. + 120 C / -- 22 F .. + 248 F)Hhigh temperature(-- 30 C .. + 150 C / -- 22 F .. + 302 F)Khigh temperaturePLUS(-- 30 C .. + 220 C / -- 22 F .. + 428 F)Vwithout preamplifier (for plug-in display SD1)Xintrinsically safe (ATEX)(switching amplifier has to be ordered separately)KXhigh temperature PLUS ATEX(-- 30 C.)

9 + 200 C / -- 22 F .. + 392 F)(switching amplifier has to be ordered separately)Connection typeP Plate mountingR Pipe connectionSeries1 2 3 4 5 6 7 8see series selectionProduct codeNominal 1 3 5 12 16 SealFFKMEEPDMPFEPKFFKM means:Nominal size / Seal FKM /Series 1 / Plate mounting / Electronic standardKRACHT CORP. 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 Type Flow Meter VCKRACHT CORP. 8600 S Wilkinson Way Unit A Perrysburg, OH 43551 USA P +1 419 874 1000 F +1 419 874 1006 output channel 224 Volt (brown)Channel 1 (green)Channel 2 (yellow)0 Volt (white)Signal outputchannel 2 Signal CharacteristicsChannel IArising edgeB one pulse(corr. to flow rate of geom. tooth volume Vgz)C falling edgeD ON phaseE OFF phaseF pulse duty factor 1 : 1 15 %ChannelIIG channel offsetH flow direction 1K reversal of flow directionJ flow direction 2 Electrical CharacteristicsNumber ofmeasuring channels2 Operating voltageUop= 12.

10 30 VDCpolarizedPulse amplitudeUA UBPulse shape withsymm. output signalsquare wavepulse duty factor / channel1:1 15 %Signal outputPNP (NPN on request)Pulse offset betweentwo channels90 30 Power requirementPb max= WOutput power/channelPa max= Wshort-circuit-proofDegree of protectionIP 65 DIN 40050 Electrical Connection(4) Channel 1 (black)(1) 24 V (brown)(3) 0 V (blue)(2) Channel 2 (white)Standard version / High temperature versionHigh temperature PLUS versionElectrical connection (Round connector M 12 x 1/4-pin)1011 12789456123123 Safe areaK 130II (2) G [EEx ia] IIC PTB 03 ATEX 2094 XII 2 GD EEx ia IICT4 PTB 03 ATEX 2249 VCPotentially explosive atmosphereChannel 224 Volt7, 8 and 9 jumperedshieldgreenyellow0 VoltwhitebrownyellowgreenPAbrownwhiteCha nnel 1 Technical Data of Switching Amplifier K-130 / 3-E-10 Power supplySupply voltage cl. 7 (L+), cl. 10 (L--)DC 24 Volt 20 % Ripple content white Wss< 10 %Outputs (non-intrinsically safe)Characteristics cl.