Kracht VCA 0.04, Operating Instructions Manual

Page 1: ...Gear type flow meter VCA VCN VCG English 11 18 08 2021 Operating instructions Translation ...

Page 2: ...hnical data 13 4 1 General 13 4 2 Overview nominal sizes 14 4 3 Permissible temperature range 15 4 4 Material data 15 4 5 Weight 16 4 6 Dimensions 16 5 Transport and storage 17 5 1 General 17 5 2 Transport 17 5 3 Storage 17 5 4 Storage conditions 18 6 Installation 19 6 1 Important notes about explosion protection 19 6 2 Mechanical installation 20 6 2 1 Preparation 20 6 2 2 Plate connection 21 6 2 ...

Page 3: ...tion Media temperature 33 9 4 5 Inspection Check the potential compensation if existing 33 9 4 6 Inspection Condition of operating fluid 33 9 4 7 Audiometric monitoring Unusual noise 33 9 4 8 Cleaning 33 9 4 9 Visual inspection Leakages 33 9 4 10 Inspection Device temperature 34 9 4 11 Visual inspection Measuring unit status 34 9 4 12 Visual inspection Condition of housing parts 34 9 4 13 Visual i...

Page 4: ...vice and must be kept accessible for the personnel near the device at all times The device is manufactured in different versions Information about the version concerned in the individual case can be found on the device s type plate If you have any questions about these operating instructions please contact the manufac turer 1 2 Manufacturer address KRACHT GmbH Gewerbestraße 20 DE 58791 Werdohl Tel...

Page 5: ...ich would lead to death or severe bodily injury if not avoided CAUTION Identification of a low risk hazard which could lead to minor or medium bodily injury if not avoided ATTENTION Flagging of notices to prevent property damage NOTICE Identification of basic safety instructions Non compliance can lead to hazards for people and the device TIP Flagging of special user tips and other especially usef...

Page 6: ...l industrial atmospheres If there are any aggressive substances in the air always consult the manufacturer 5 The product may only be operated in compliance with these operating instructions and the applicable documents Deviating operating conditions require the express approval of the manufacturer 6 Use of the product for purposes other than those for which it is intended invalidates any warranty ...

Page 7: ...fluids Danger to life when handling hazardous fluids a Comply with the safety data sheets and regulations on handling the hazardous fluids b Collect and dispose of hazardous fluids so that no hazard is created for persons or the environment DANGER Rotating parts Danger of death due to body parts hair or clothing getting trapped or entangled a Before all work ensure that existing drives are voltage...

Page 8: ...NING Failure of pressure bearing parts due to overload Risk of injury from flying parts Risk of injury due to fluid spurting out a Use only connections and lines approved for the expected pressure range b Securely prevent the permissible pressures from being exceeded e g by using pressure relief valves or bursting discs c Pipelines must be designed in such a way that no tension e g caused by chang...

Page 9: ...s a pressure resistant amagnetic division between the sensor space and meas uring chamber During the rotation of the measuring unit by one tooth pitch a signal occurs per sensor that corresponds to the so called geometric tooth volume of Vgz A value that is stated in tech nical documents as the nominal volume to specify the unit size The 1 channel scan measures the flow but does not recognise its ...

Page 10: ...3 Device description Kracht GmbH 10 37 88025530002 11 3 2 Basic design 1 Cable socket 6 Housing 2 Equipment plug 7 Gears 3 Sensor 8 Plain bearing bush 4 Cover 9 Bearing journal 5 O ring 10 O ring ...

Page 11: ...ess steel 4 Housing Aluminium Gears Stainless steel 5 Housing Aluminium Gears Steel 5 Seal F FKM P FEP N NBR 6 Surface 1 painted 4 hardcoated 3 Without 5 anodized 7 Type of connection P Plate structure R Pipe connection 8 Sensor system 1 1 Sensor 3 Without 2 2 Sensors 4 2 Sensors protected against vibration and condensation 9 Electronics S Standard V without preamplifier for Plug in display unit S...

Page 12: ...3 Device description Kracht GmbH 12 37 88025530002 11 3 4 Special numbers Special number Description 40 Housing connection VCA 2 Whitworth pipe thread G 1 ...

Page 13: ... 14 Operating pressure p Permissible pressure loss Δpmax Fluid temperature ϑm Permissible temperature range 15 Ambient temperature ϑu Material Material data 15 Measuring accuracy Overview nominal sizes 14 Permissible size of foreign particles in the medium Permissible media Lubricating fluids without abrasive compon ents The medium must be compatible with the materials used in the device Please co...

Page 14: ...load alterna tions of the peak pressure 1x106 Measuring range 2 l min 0 02 4 0 08 10 0 25 10 1 65 1 200 3 240 Max pressure loss bar 10 16 Measuring accuracy starting from viscosity in mm s 2 20 3 20 2 5 20 1 20 2 5 20 Viscosity mm s 20 4000 1 3000 Lubricating properties of the operating fluid good Sound pressure level LpA dBA 60 1 See type key and type designation at device 2 The measuring range m...

Page 15: ...0 EPDM FEP with FKM core till 2019 FEP with silicone core from 2020 4 4 Material data Product name VCN VCG Nominal size 0 04 0 2 2 5 Bearing K U U M M Material 4 4 5 5 5 Mater ial Hous ing Cover Stainless steel 1 4462 EN GJS 400 15 GGG 40 Meas uring unit Stainless steel 1 4462 Stainless steel 1 4462 Case hardened steel 1 7139 Bearing Anti friction bearing steel Iglidur X Steel sintered bronze PTFE...

Page 16: ...riction bearing steel Iglidur X Steel sintered bronze PTFE Iglidur X Anti friction bearing steel Bearing pin Stain less steel 1 4462 Hardene d steel Stainless steel 1 4462 Hardene d steel Stain less steel 1 4462 Hardene d steel Stain less steel 1 4462 Type of bearing Ball bearing Plastic plain bear ings Multi layer friction bearings Plastic plain bearings Ball bearing 4 5 Weight Nominal size Produ...

Page 17: ...ng residual oil preserves the interior parts for up to 6 months Metallic exposed exterior parts are protected against corrosion by suitable conservation measures also up to 6 months In case of storage a dry dust free and low vibration environment is to be ensured The device is to be protected against influences from weather moisture and strong fluctuations of temperature The recommended storage co...

Page 18: ...ess a Protect endangered surfaces by means of suitable conservation measures b Comply with recommended storage conditions 5 4 Storage conditions TIP Recommended storage conditions a Storage temperature 5 C 25 C b Relative air humidity 70 c Protect elastomer parts from light especially direct sunlight d Protect elastomer parts from oxygen and ozone e Comply with maximum storage times of elastomeric...

Page 19: ... getting trapped or entangled a Before all work ensure that existing drives are voltage free and pressure free b Securely prevent restarting during all work DANGER Exposed electrical components Risk of fatal electric shock a Adhere to the special safety regulations for all work on electrical systems Switch off electrical systems and secure them against being switched on again b Work on electrical ...

Page 20: ...elines must be designed in such a way that no tension e g caused by changes in length due to fluctuations in temperature can be transferred to the product CAUTION Hot surfaces Burn injury to skin if touched a Take measures against accidental touching of hot surfaces 60 C 6 2 Mechanical installation 6 2 1 Preparation a Check the device for transport damage and dirt b Remove existing preservatives ð...

Page 21: ...skin if touched a Take measures against accidental touching of hot surfaces 60 C ATTENTION Dirt or small parts Dirt or small parts may cause damage or dysfunction to the device or the system a Before installing the device check the connection faces of the device for dirt or small parts and clean if necessary ...

Page 22: ...cient screw in depth of the fastening screws 1 Fastening screws Tightening torques Fastening screws Nominal size 0 2 2 5 Product name VCA VCA VCG VCG Screw size M8 M8 M12 Strength class 10 9 10 9 12 9 10 9 Tightening torques 13 Nm 52 Nm 69 Nm 120 Nm External manufacturer connection plate valve block NOTICE Use only connection plates or valve blocks from external manufacturers with specified sur fa...

Page 23: ...2 2 Operating voltage UB 24 V DC 20 Reverse polarity protection UB 12 V DC 20 Reverse polarity protection Impulse amplitude UA 0 8 UB UA 0 8 UB Impulse shape with sym metrical output signal Rectangular Pulse duty factor Channel 1 1 15 Rectangular Pulse duty factor Channel 1 1 15 Impuls offset between the two channels 90 30 90 30 Power requirement pb max 0 9 W 0 9 W Output power Channel Pa max 0 3 ...

Page 24: ...ct voltage b Please consult the manufacturer in cases of doubt ATTENTION The power supply line must match the used preamplifier 6 3 1 1 Plug assignment The terminal assignment for Channel 1 and 2 influences the displayed direction of rotation of the measuring unit 1 UB Brown 2 Channel 1 Green 3 Channel 2 Yellow 4 0 Volt White H1 Transmitter Channel 1 Red H2 Transmitter Channel 2 Red ...

Page 25: ... account especially with large line volumes b Check all fastening screws on the product c Fill the unit with media 7 3 Further operation start up a Open existing shut off elements upstream and downstream of the device b Adjust pressure relief valves in the system installed for lowest opening pressure c Run the device for a few minutes depressurised or with low pressure d Vent the system at the hig...

Page 26: ...s a con tinual flow of fluid through the measuring unit TIP A lack of signalling can point to a blocked measuring unit ATTENTION Pressure increase due to blocked measuring unit Pressure increase in front of the unit can lead to damage to the unit and or plant a In case of the absence of the signal take the unit or the plant out of service ...

Page 27: ...ll work DANGER Exposed electrical components Risk of fatal electric shock a Adhere to the special safety regulations for all work on electrical systems Switch off electrical systems and secure them against being switched on again b Work on electrical systems may only be carried out by a qualified electrician c Use only connection lines that are resistant to ambient influences and media WARNING Uns...

Page 28: ...nts upstream and downstream of the device c Open existing drain elements and loosen connection lines Collect and dispose of dis charging medium so that no hazard arises for persons or environment d Dismantle the device ð Pull the plug off the housing ð Plate structure Release the unit from the connection plate ð Pipe connection Loosen the pipe connections from the unit and if applicable take the u...

Page 29: ...restarting during all work DANGER Exposed electrical components Risk of fatal electric shock a Adhere to the special safety regulations for all work on electrical systems Switch off electrical systems and secure them against being switched on again b Work on electrical systems may only be carried out by a qualified electrician c Use only connection lines that are resistant to ambient influences an...

Page 30: ... accordance with the local stipulations NOTICE Protective equipment and notices After maintenance and or repair reattach all protective devices and notices removed in the process to their original position 9 2 1 Cleaning Desposits in the measuring device ATTENTION Leaks or increased wear Damaged gasket faces and gears lead to leaks and faults in later operation a When disassembling housing compone...

Page 31: ...during operation the type scope and interval of the maintenance work may deviate from the recommendations A mandatory maintenance plan must be drawn up by the installer operating company TIP In the course of preventive maintenance it is advisable to replace wearing parts before the wear limit is reached With the appropriate expertise and sufficient equipment the repair can also be carried out by t...

Page 32: ... 2 9 4 7 Audiometric monitoring Un usual noise 1 9 4 8 Cleaning 1 9 4 9 Visual inspection Leakages 1 9 4 2 Inspection Discharge flow 2 9 4 3 Inspection Operating pres sure 2 9 4 4 Inspection Media temperat ure 2 9 4 5 Inspection Check the poten tial compensation if existing 2 9 4 6 Inspection Condition of op erating fluid 2 9 4 10 Inspection Device temperat ure 2 9 4 11 Visual inspection Measuring...

Page 33: ... temperature is too high or too low check the product components Comply with the product specific data sheets operating instructions 9 4 5 Inspection Check the potential compensation if existing Check potential equalization for tight fit and function 9 4 6 Inspection Condition of operating fluid Pay attention to colour dark colouring odour and milky turbidity Replace operating fluid if necessary 9...

Page 34: ...posits in the measuring device 30 9 4 12 Visual inspection Condition of housing parts In this case attention must be paid to the housing parts of the product 9 4 13 Visual inspection Bearing status In this case attention must be paid to the bearing of the product Cleaning Desposits in the measuring device 30 9 4 14 Replace Other seals Cleaning Desposits in the measuring device 30 9 4 15 Cleaning D...

Page 35: ...tched on again b Work on electrical systems may only be carried out by a qualified electrician c Use only connection lines that are resistant to ambient influences and media DANGER Rotating parts Danger of death due to body parts hair or clothing getting trapped or entangled a Before all work ensure that existing drives are voltage free and pressure free b Securely prevent restarting during all wo...

Page 36: ...cleaned before the return If this should not be possible the safety data sheet of the hazardous material is to be provided beforehand Repair by equipment builder operator If corresponding expertise and sufficient equipment is available the equipment builder oper ator can also make the repairs Please consult the manufacturer about this a If required request spare parts lists and assembly drawings f...

Page 37: ...efective Sensor defective No LED display illumin ates Power failure Check the supply cable Check the fuses Measuring unit is blocked Put the device out of operation immediately Products with bearings K C or H Repairs by manufacturer Products with bearings G or B Clean the device Seal failure Leakage O ring in the housing is defect ive Products with bearings K C or H Repairs by manufacturer Product...