KRAL OMS Series Operating Instructions Manual
Flowmeters, low-viscosity liquids
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Summary of Contents for KRAL OMS Series
- Page 1 Operating instructions KRAL flowmeters. Series OMS Low-viscosity liquids OIO 30en-GB Edition 2019-04 Original instructions www.kral.at...
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Page 2: Table Of Contents
Table of contents 1 About this document ............. 4 7 Installation, removal ............ 21 General information ............ 4 Dangers during installation .......... 21 Target groups .............. 4 Dangers during removal.......... 21 Symbols................. 4 Installing the flowmeter .......... 21 1.3.1 Danger levels ............ 4 7.3.1 Protecting the flowmeter against soiling .. 21 1.3.2 Danger signs............. 5 7.3.2... - Page 3 Table of contents 15.3 Extension cable ............ 44 15.3.1 Function description........ 44 15.3.2 Technical data.......... 44 15.3.3 Connecting the extension cable...... 44 16 Appendix............... 45 16.1 Tightening torque for screws with metric screw threads and head contact surfaces .......... 45 16.2 Tightening torques for screw plugs with thread meas- ured in inches and elastomer seal....... 46 16.3 Tightening torques and widths for threaded rings .. 46 16.4 Contents of the Declaration of Conformity.... 46...
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Page 4: About This Document
1 About this document 1.1 General information 1 About this document 1.1 General information These instructions form part of the product and must be kept for future reference. Furthermore please observe the associated documents. 1.2 Target groups The instructions are intended for the following persons: o Persons who work with the product o Operator-owners who are responsible for the use of the product Information on the required qualification of the personnel is provided separately at the beginning of the... -
Page 5: Danger Signs
1 About this document 1.4 Associated documents 1.3.2 Danger signs Meaning Source and possible consequences of non-observance Electrical voltage Electrical voltage causes serious physical injury or death. Raised load Falling objects can result in serious physical injury or death. Heavy load Heavy loads can result in serious back problems. -
Page 6: Safety
2 Safety 2.1 Proper use 2 Safety 2.1 Proper use o Use the flowmeter solely for measuring the flow of liquids that do not contain any gas components or solid particles. o If coarse soiling, solid particles in the liquid or abrasive fine particles occur during operation, the flowmeter has to be protected additionally by a correspondingly dimensioned operating filter in the pipe system. -
Page 7: Dangers During Transportation
2 Safety 2.4 Dangers during transportation 2.4 Dangers during transportation The following safety instructions must be observed: o Have all work only carried out by authorized transport personnel. o Use intact and correctly dimensioned hoisting equipment. o Ensure that the means of transport is in a flawless state. o Ensure that the centre of gravity of the load is taken into consideration. -
Page 8: Dangers During Servicing
2 Safety 2.10 Dangers during servicing 2.10 Dangers during servicing The following safety instructions must be observed strictly: o Have all work only carried out by authorized qualified personnel. o To ensure the measuring precision, the measuring unit may only be replaced by the manufac- turer. -
Page 9: Identification
3 Identification 3.1 Type code 3 Identification 3.1 Type code Series Size OMS-020.CACABA.0001 Sensor equipment (pick up) Function of the sensor equipment Material of bearing Material of seal Fig. 1: Type code Mechanical connection Electrical connection Version index Item Designation Description Series Stainless steel Size... -
Page 10: Rating Plate
4 Technical data 3.2 Rating plate 3.2 Rating plate 1 Serial number 2 Construction year 3 K-factor 4 Preferred flow direction 5 Max. temperature 6 Series 7 Max. pressure Fig. 2: Rating plate 4 Technical data 4.1 Operating limits The values specified on the rating plate and the calibration certificate apply. The permissible operating limits of individual values influence each other so that every application is checked individually by the manufacturer when selecting the flowmeter. -
Page 11: Substitute Operating Data
4 Technical data 4.4 Substitute operating data Unit OMS-020 OMS-032 OMS-052 Pole number K-factor [P/l] 1280 Millimetres/pulse [ml/P] 0.782 2.14 7.04 Pulse frequency f2 (Q [Hz] 1170 1243 f2 (Q [Hz] rated f2 (Q [Hz] 12.8 15.6 16.6 Tab. 4: Additional maximum values when BEG 44 is used Unit OMS-020 OMS-032... -
Page 12: Dimensions And Weights
4 Technical data 4.6 Dimensions and weights 4.6 Dimensions and weights 4.6.1 Pipe thread (BSPP thread) M18x1 Pipe thread M18x1 Pick up hole G1/4" Temperature sensor hole Outer diameter Total length Length of the flowmeter without connections G1/4" Max. screw-in depth Fig. 4: Dimensional drawing pipe thread Unit OMS-020... -
Page 13: Pressure Bearing Capacity
4 Technical data 4.7 Pressure bearing capacity 4.7 Pressure bearing capacity 4.7.1 Pressure bearing capacity OMS-020 100000 50000 5000 2000 10000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 1000 5000 2000 10,5 13,5 Short-term operation Continuous operation Pressure loss Flow rate... -
Page 14: Pressure Bearing Capacity Oms-032
4 Technical data 4.7 Pressure bearing capacity 4.7.2 Pressure bearing capacity OMS-032 100000 50000 5000 2000 10000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 1000 5000 2000 Short-term operation Continuous operation Pressure loss Flow rate rated The values apply for lubricating liquids at temperatures up to 120 °C. -
Page 15: Pressure Bearing Capacity Oms-052
4 Technical data 4.7 Pressure bearing capacity 4.7.3 Pressure bearing capacity OMS-052 100000 50000 5000 2000 10000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 5000 1000 2000 17,5 52,5 87,5 122,5 157,5 Short-term operation Continuous operation Pressure loss Flow rate rated... -
Page 16: Function Description
5 Function description 5.1 Structure 5 Function description 5.1 Structure 2/2a Fig. 6: Structure of the flowmeter Connection Ball bearing floating bearing end Screw plug Measuring screw large Connection of temperature sensor Ball bearing fixed bearing end Bearing cover Pick up hole Measuring housing Pole wheel Measuring screw small... -
Page 17: Signal Generation
The flow direction can be determined by means of the additional phase-shifted signal and the incre- mental encoder positions available in the KRAL electronic unit and then taken into account for the cal- culation of the total values. Operating instructions... -
Page 18: Transportation, Storage
6 Transportation, storage 6.1 Dangers during transportation 6 Transportation, storage 6.1 Dangers during transportation The following safety instructions must be observed: o Have all work only carried out by authorized transport personnel. o Use intact and correctly dimensioned hoisting equipment. o Ensure that the means of transport is in a flawless state. -
Page 19: Storing The Flowmeter
6 Transportation, storage 6.5 Storing the flowmeter Requirement: ü Sufficiently dimensioned hoisting equipment ü The used hoisting equipment corresponding to the local rules and regulations for the prevention of accidents Fig. 7: Fastening of hoisting equipment - principle diagram Fasten hoisting equipment on the flowmeter. 6.5 Storing the flowmeter As a result of the calibration, the internal components of the flowmeter are wetted with calibration liquid that has a preservative effect. -
Page 20: Preserving The Inner Surfaces
6 Transportation, storage 6.6 Preservation 6.6.2 Preserving the inner surfaces Personnel qualification: o Trained personnel o Work clothing Personal protective equipment: o Protective gloves o Safety boots Close a connection of the flowmeter with a blind flange. Position the flowmeter vertically. Fill non-corrosive and resin-free oil into the pressure connection up to approx. -
Page 21: Installation, Removal
7 Installation, removal 7.1 Dangers during installation 7 Installation, removal 7.1 Dangers during installation The following safety instructions must be observed strictly: o Have all work only carried out by authorized qualified personnel. o Do not take apart the flowmeter. o Do not remove the protective caps from the dry sleeves. -
Page 22: Installation Types
7 Installation, removal 7.3 Installing the flowmeter 7.3.2 Installation types Flowmeters can be operated in different mounting positions. Both flow directions are possible. The preferred flow direction is indicated on the rating plate by means of a bright arrow Ä Identification, Page 9. Fig. 8: Installation types The arrow with dashed line identifies the preferred flow direction when an operating filter is used. -
Page 23: Installation Recommendation
7 Installation, removal 7.3 Installing the flowmeter 7.3.3 Installation recommendation In order to avoid measuring errors observe the following recommendations of the manufacturer when installing the flowmeter in the pipe system. Preferred installation variant: - Install the flowmeter vertically. - Route the flow from the bottom upwards. Recommendations for alternative installation variants Alternative installation variant: Source for measuring error:... -
Page 24: Removing The Flowmeter
7 Installation, removal 7.4 Removing the flowmeter 7.3.4 Installing the flowmeter Personnel qualification: o Fitter o Work clothing Personal protective equipment: o Protective gloves o Safety boots ATTENTION Measuring error through air pocket in the flowmeter. ► During installation ensure that the flowmeter is not installed at the highest point in the pipe system. ATTENTION Measuring error through a lack of counter-pressure. -
Page 25: Connection
8 Connection 8.1 Dangers during connection work Drain the pipe system or divert the pumped liquid via bypass. Remove the flowmeter. Attach protective covers in front of connecting flanges. For storage of the flowmeter Ä Transportation, storage, Page 18 and Ä Preservation, Page 19. 8 Connection 8.1 Dangers during connection work The following safety instructions must be observed strictly:... -
Page 26: Connecting The Pick Up
9 Operation 8.3 Connecting the pick up Notice The screw-in length of the piping may not exceed the threaded length of the flowmeter, since the flow cross-section is narrowed and internal components can be damaged. Remove the protective covers and store them. Place the piping in position and support the weight of the piping. -
Page 27: Checking The Function
9 Operation 9.2 Commissioning ATTENTION Damage to device through usage of an incorrect flushing liquid. ► Under no circumstances may water or superheated steam be used to flush the pipe system. Flushing via bypass: Close the shut-off devices before and after the flowmeter. - or - Flushing via flowmeter: Install the operating filter in front of the flowmeter, while observing the mesh width of the operat-... -
Page 28: Decommissioning
9 Operation 9.3 Decommissioning 9.3 Decommissioning 9.3.1 Switching off the flowmeter ATTENTION Damage to the measuring unit. In the case of strong changes to the flow rate (for example, rapid shutdown, pulsations, etc.) there is a danger of excessive pressure differences. ►... -
Page 29: Maintenance
10 Maintenance 10.1 Required maintenance 10 Maintenance 10.1 Required maintenance Flowmeters are fundamentally maintenance-free. Under observance of the operating limits Ä Tech- nical data, Page 10, no significant change in the characteristics could be established, even after years of use in many cases. Stresses lying clearly above the rated flow rate can, however, result in excessive wear. -
Page 30: Servicing
11 Servicing 11.1 Dangers during servicing 11 Servicing 11.1 Dangers during servicing The following safety instructions must be observed strictly: o Have all work only carried out by authorized qualified personnel. o To ensure the measuring precision, the measuring unit may only be replaced by the manufac- turer. -
Page 31: Installing Seals And Bearings Oms-020/Oms-032
11 Servicing 11.2 Replacing seals and bearings 672.2 817.3 064.2 869.4 904.2 817.4 915.7 869.2 064.1*** 915.6 817.2 904.1 672.1 817.1 Remove the circlips 869.2 and 869.4 from the measuring screw large 672.1 and measuring screw small 672.2. Screw out the socket screws 915.6 and 915.7 and remove the wedge lock washers 904.1, 904.2 and supporting rings 064.1*** (only OMS-032) 064.2. -
Page 32: Removing Seals And Bearings Oms-052
11 Servicing 11.2 Replacing seals and bearings Press on the ball bearings 817.3 and 817.4 only over the inner rings on the measuring screw small 672.2. Slide the distance ring 056 on the measuring screw large 672.1, press on the pole wheel 259. Pull the wedge lock washers 904.1 and 904.2 and supporting rings 064.1*** (only OMS-032) and 064.2 onto the socket screws 915.6 and 915.7. - Page 33 11 Servicing 11.2 Replacing seals and bearings 080.1 739.1 Drive the screw set together with the bearing cover 080.1 out of the measuring housing 128 using light blows of a plastic hammer and pull out. 064.2 672.2 904.2 915.7 672.1 904.1 080.1 064.1 915.6 Screw out the socket screw 915.6 with wedge lock washer 904.1 and supporting ring 064.1 at the...
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Page 34: Installing Seals And Bearings Oms-052
11 Servicing 11.2 Replacing seals and bearings Take out the distance ring 054 and pull the ball bearings 817.3 and 817.4 out of the bearing cover using an extractor. Remove the circlips 869.2 and 869.4 and the support rings 868.2 and 868.4 from the measuring screws. Pull the ball bearings 817.1 and 817.2 from the measuring screws by using the extractor. 11.2.4 Installing seals and bearings OMS-052 Personnel qualification: o Fitter... -
Page 35: Disposal
12 Disposal 12.1 Dangers during disposal Apply Loctite 242 to the socket screws 915.7, install on the measuring screw small with mounted washers and tighten with torque Ä Appendix, Page 45. Slide the distance ring 056 on the measuring screw large 672.1. Press on the pole wheel 259. Pull the wedge lock washer 904.1 and supporting ring 064.1 onto the socket screw 915.6. -
Page 36: Troubleshooting
13 Troubleshooting 13.1 Possible faults Faults can have different causes. The following tables list the symptoms of a fault, the possible causes and measures for troubleshooting. In the case of faults please contact the manufacturer. Under services@kral.at. Identification Fault Flowmeter leaks... - Page 37 13 Troubleshooting 13.2 Troubleshooting Fault identifica- Cause Remedy tion Increase the inlet pressure. – – – 4 – Viscosity of the liquid too high Increase the temperature. When doing so observe the temperature range. – – 3 – – Flow rate too low Increase the flow rate.
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Page 38: Spare Parts
14 Spare parts 14.1 Spare parts 14 Spare parts 14.1 Spare parts 915.4* 115.2* 739.4* 115.1* 739.3* 915.3* 915.2* 070.2 739.2 739.1 070.1 597.1 739.5** 817.4 869.4 672.2 817.3 904.2 064.2 915.7 915.1* 869.2 672.1 817.2 817.1 904.1 915.6 064.1*** Fig. 9: Exploded drawing OMS-020 and OMS-032 Operating instructions OIO 30en-GB Edition 2019-04... - Page 39 14 Spare parts 14.1 Spare parts 915.4 107.2* 739.4 739.3 107.1* 915.3 597.2 080.2 739.2 597.1 739.1 080.1 915.2 915.1 868.4 869.4 817.2 672.2 057.2 739.5** 818.2 064.2 915.7 869.2 817.1 868.2 672.1 057.1 818.1 904.1 915.6 Fig. 10: Exploded drawing OMS-052 Operating instructions OIO 30en-GB Edition 2019-04...
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Page 40: Accessories
15 Accessories 15.1 Heating Item No. Part Item No. Part Distance sleeve 739.4 O-ring Sleeve 739.4* O-ring Distance ring 739.5** O-ring Distance ring 817.1 Deep-groove ball bearing 057.1 Threaded ring 817.2 Deep-groove ball bearing 057.2 Threaded ring 817.3 Deep-groove ball bearing Spacer 817.4 Deep-groove ball bearing... -
Page 41: Technical Data Of The Electrical Heating System
15 Accessories 15.1 Heating 15.1.2 Technical data of the electrical heating system Unit OMS-020 OMS-032 OMS-052 Heating output Voltage [V AC] Frequency [Hz] Wire cross-section 3 x 0.75 Cable length for tubular pipe cartridge Tab. 15: Electrical heating system 15.1.3 Technical data of the fluid heating system Unit OMS-020 OMS-032... -
Page 42: Junction Box
15 Accessories 15.1 Heating Installing the fluid heating system Personnel qualification: o Fitter o Work clothing Personal protective equipment: o Protective gloves o Safety boots ATTENTION Damage to equipment through the use of water or steam as a heating liquid. ►... -
Page 43: Function Description
15 Accessories 15.2 Junction box 15.2 Junction box 15.2.1 Function description For the flowmeters of the series OMS the manufacturer offers a junction box. This simplifies the elec- trical connection of the various sensors. 15.2.2 Technical data Unit UZA 09 UZA 10 UZA 11 Suitable for... -
Page 44: Extension Cable
15 Accessories 15.3 Extension cable 0 V Q 0 V Q 24 V Q 24 V Q Sig.1 Q Sig.1 Q 0 V Q 24 V Q Sig.2 Q Sig.2 Q Com. t Com. t Com. t Sig. t Com. t Sig. -
Page 45: Appendix
16 Appendix 16.1 Tightening torque for screws with metric screw threads and head contact surfaces DANGER Risk of death resulting from electric shock. ► Ensure that the electrical power supply is de-energized and is secured against being switched back on. ►... -
Page 46: Tightening Torques For Screw Plugs With Thread Measured In Inches And Elastomer Seal
16 Appendix 16.2 Tightening torques for screw plugs with thread measured in inches and elastomer seal 16.2 Tightening torques for screw plugs with thread measured in inches and elastomer seal Tightening torque [Nm] Thread Galvanized + stainless steel G 1/8" 13.0 G 1/4"... - Page 47 Directory of figures Directory of figures Fig. 1 Type code..................................Fig. 2 Rating plate ................................... Fig. 3 Pressure pulses................................Fig. 4 Dimensional drawing pipe thread ..........................Fig. 5 Dimensional drawing DIN flange ........................... Fig. 6 Structure of the flowmeter ............................. Fig.
- Page 48 KRAL AG, 6890 Lustenau, Austria, Tel.: +43/5577/86644-0, E-Mail: kral@kral.at www.kral.at...
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