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Related Manuals for KRAL OME Compact Series
Summary of Contents for KRAL OME Compact Series
- Page 1 Operating instructions KRAL flowmeters. OME Compact series OIO 20en-GB Edition 2022-01 Original instructions www.kral.at...
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Page 2: Table Of Contents
Table of contents 1 About this document ............. 4 Installing the flowmeter .......... 17 8.3.1 Protecting the flowmeter against soiling .. 17 General information ............ 4 8.3.2 Installation types.......... 18 Target groups .............. 4 8.3.3 Installation recommendation...... 19 Symbols................. 4 8.3.4 Installing the flowmeter........ 20 1.3.1 Danger levels ............ 4 Removing the flowmeter .......... 20 1.3.2 Danger signs............. 4... - Page 3 Table of contents 17.2 Tightening torques for screw plugs with thread measured in inches and elastomer seal ...... 37 17.3 Contents of the Declaration of Conformity.... 38 Operating instructions OIO 20en-GB Edition 2022-01...
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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 Persons who work with the product must be qualified. -
Page 5: Symbols In This Document
2 Safety 1.4 Associated documents Meaning Source and possible consequences of non-observance Risk of slipping Discharging pumped liquid and oils on the foundation or tread surfaces can cause falls with serious physical injury or death. Flammable sub- Discharging pumped liquid and oils can be easily inflammable and can stances result in serious burns. -
Page 6: Obligations Of The Operator-Owner
If pressurised or energised components are damaged, shut down the flow meter immediately. Re- place the components or flow meter. o Housing and flanges of the OME series KRAL flow meter are anodised. When installing the flow meter in a pipeline, electrical interruptions to the earthed pipeline system cannot be ruled out. A possible interruption of the earthing must therefore be taken into account by the operator. -
Page 7: Identification
3 Identification 3.1 Type code 3 Identification 3.1 Type code Series Size Sensor equipment (pick up) OME-020.JDAAFD.0001 Function of the sensor equipment Bearing material Seal material Mechanical connection Fig. 1: Type code Electrical connection Version index Item Designation Description Series Economy Size Corresponds to the diameter of the measuring screw large in [mm] Sensor equipment... -
Page 8: Technical Data
4 Technical data 4.1 Operating limits 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 9: Substitute Operating Data
4 Technical data 4.4 Substitute operating data 4.4 Substitute operating data The following table shows standardised values for the flow rate, temperature and viscosity. These val- ues can be used at the same time as maximum values without impairing the service life of the flow- meter. -
Page 10: Ome With Compact Sensor (Din Flange)
4 Technical data 4.6 Dimensions and weights 4.6.2 OME with Smart Solution electronic unit (BSPP thread) Pipe thread External dimensions without Smart Solution Total length Length of the flowmeter without connections Overall height Fig. 5: Scale drawing OME with Smart Solution electronic unit and pipe thread connection Size Parameter... -
Page 11: Ome With Smart Solution Electronic Unit (Din Flange)
4 Technical data 4.6 Dimensions and weights 4.6.4 OME with Smart Solution electronic unit (DIN flange) Flange nominal diameter Outer diameter Total length Length of the flowmeter without connections Overall height Fig. 7: Scale drawing OME with Smart Solution electronic unit and DIN flange connection Size Parameter Unit... -
Page 12: Compact Sensor Specification
4 Technical data 4.7 Compact sensor specification 4.7 Compact sensor specification Specification Unit Data Double pick up o Operating principle Magneto-resistive o Output circuit Push-pull o Short-circuit protection o Reverse polarity protection o Max. output current per signal [mA] o Frequency range [kHz] 0 – 25 o Supply voltage... -
Page 13: Function Description
5 Function description 5.1 Structure 5 Function description 5.1 Structure Fig. 8: Flowmeter structure Connection Ball bearing Compact sensor/Smart Solution electronic unit Measuring housing Small measuring screw Large measuring screw 5.2 Functional principle Flowmeters belong to the group of rotating displacement meters as screw meters. The pumped liquid makes the measuring unit rotate. -
Page 14: Linearization
The flow direction can be determined via the phase-shifted signal and the incremental encoder posi- tions available in an external KRAL electronic unit, and then taken into account when calculating the total values. The compact sensor is also equipped with a temperature sensor. The current density of the medium flowing through can be calculated with the help of a density table stored in the electronics. -
Page 15: Transporting Flowmeters
6 Transportation, storage 6.4 Transporting flowmeters 6.4 Transporting flowmeters WARNING Risk of injury and damage to equipment through falling and toppling parts. ► Use intact and correctly dimensioned hoisting equipment in accordance with the total weight to be transported. ► Select the lift points for the hoisting equipment in accordance with the centre of gravity and the weight distribution. -
Page 16: Preservation
7 Preservation 7.1 Preservation table 7 Preservation 7.1 Preservation table Preservation has to be carried out additionally under the following conditions: Type of delivery Condition Standard delivery o Storage time exceeding six weeks o Unfavourable storage conditions such as high humidity, salty air, etc. -
Page 17: Installation, Removal
8 Installation, removal 8.1 Dangers during installation CAUTION Risk of injury through discharging preservative. ► Wear personal protective equipment during all the work. ► Collect any discharging preservative safely and dispose of it in an environmentally compatible manner in accordance with the applicable local regulations. Remove one of the blind flanges. -
Page 18: Installation Types
8 Installation, removal 8.3 Installing the flowmeter 8.3.2 Installation types Flowmeters can be operated in different installation positions. Both flow directions are possible. The preferred flow direction is indicated on the rating plate by means of an arrow Ä Identification, Page 7. Fig. 10: Installation types The arrow with dashed line identifies the preferred flow direction when an operating filter is used. -
Page 19: Installation Recommendation
8 Installation, removal 8.3 Installing the flowmeter 8.3.3 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 20: Removing The Flowmeter
8 Installation, removal 8.4 Removing the flowmeter 8.3.4 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 21: Connection
Observe the instructions for connecting the compact sensor or the Smart Solution electronic unit Ä Servicing, Page 25. o Housing and flanges of the OME series KRAL flow meter are anodised. When installing the flow meter in a pipeline, electrical interruptions to the earthed pipeline system cannot be ruled out. A possible interruption of the earthing must therefore be taken into account by the operator. -
Page 22: Connecting The Flow Meter Electrically
10 Operation 9.3 Connecting the flow meter electrically ATTENTION Damage to device when the pipe threading is screwed in too far. ► Observe the thread length of the flowmeter. ► Use a standard cutting ring screw connection. Note 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. -
Page 23: Checking The Function
10 Operation 10.2 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 operating filter, see the following table. -
Page 24: Decommissioning
11 Maintenance 10.3 Decommissioning 10.3 Decommissioning 10.3.1 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 25: Maintaining Flowmeters
12 Servicing 11.2 Maintaining flowmeters 11.2 Maintaining flowmeters The following table lists signs of progressive wear of individual elements of the flowmeter: Finding Cause Elimination Increased running noises Incipient damage to bearing Replace the bearing. Leakage Damage to sealing Replace the seals or dry sleeve. Measured values not realistic Ä... -
Page 26: Flowmeter
12 Servicing 12.2 Flowmeter 12.2 Flowmeter 12.2.1 Removing seals and ball bearings Personnel qualification: o Fitter o Work clothing Personal protective equipment: o Protective gloves o Safety boots o Extractor Aids: Requirement: ü Flowmeter removed from system On the outlet side remove the socket screws 1, take off the end cover 2 and O-ring 3. Remove the screw set with ball bearings and spacer sleeve 4 from the measuring housing 7. -
Page 27: Installing Seals And Ball Bearings
12 Servicing 12.2 Flowmeter 12.2.2 Installing seals and ball bearings Personnel qualification: o Fitter o Work clothing Personal protective equipment: o Protective gloves o Safety boots o Torque wrench Aids: Insert the O-ring 14 into the measuring housing 7. Position the end cover 13, tighten the socket screws 12 with torque. -
Page 28: Compact Sensor
12 Servicing 12.3 Compact sensor 12.3 Compact sensor 12.3.1 Removing the sensor insert Loosen the cable gland from the cover of the compact sensor 2. Loosen the cylinder screws 1, remove the cover of the compact sensor and the flat gasket 3. Pull the PCB connector 4 off the upper board 6. Loosen the screws 5 and remove the upper board. -
Page 29: Check The Function Of The Compact Sensor
12 Servicing 12.3 Compact sensor Clean the sensor bore in the measuring housing 10. Remove the protective foil from new heat conducting foil 9 and stick the heat conducting foil at the bottom of the sensor bore, Insert the lower board 8 into the sensor bore and screw it tight with hexagonal spacers 7. Fit the upper board 6 and fix it with screws 5. -
Page 30: Smart Solution Electronic Unit
12 Servicing 12.4 Smart Solution electronic unit 12.4 Smart Solution electronic unit 12.4.1 Removing the Smart Solution electronics unit Loosen the Phillips screws 1 and remove the cover 2 of the Smart Solution electronics unit. Loosen the plug connection between the upper board 4 and the cable connection 5. Undo the socket screws 3 and remove the upper board. -
Page 31: Installing The Smart Solution Electronics Unit
12 Servicing 12.4 Smart Solution electronic unit 12.4.2 Installing the Smart Solution electronics unit Install the sensor insert 11, see Installing the sensor insert. Place the housing 8 on the flat gasket 9 and screw it tight with socket screws 7. Guide the cable connection 5 through the holes in the housing and tighten with hexagon nuts 6 with a torque of 2 Nm. -
Page 32: Disposal
14.1 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 event of a fault please contact the manufacturer at services@kral.at. Fault Flowmeter leaks No flow rate... -
Page 33: Troubleshooting
14 Troubleshooting 14.2 Troubleshooting 14.2 Troubleshooting Fault identification Cause Remedy 1 – – – – – – Seal preload too low Preload the screws. 1 – – – – – Seal damaged Replace the seal. Check the chemical resistance of the seal. –... - Page 34 14 Troubleshooting 14.2 Troubleshooting Fault identification Cause Remedy – – 3 – 5 – – Insufficient filling amount Use a flowmeter with a suitable size. Use OMG series. – – – – 5 – – Significant deviations in operating data Use a flowmeter from a suitable series.
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Page 35: Spare Parts
15 Spare parts 15.1 Maintenance kit OME 13 - 52 15 Spare parts 15.1 Maintenance kit OME 13 - 52 Note The maintenance kit contains only the numbered parts and is only supplied complete. 739.2 739.1 817.4 817.3 817.2 817.1 Fig. 11: Maintenance kit OME 13 - 52 Qty. -
Page 36: Smart Solution Electronic Unit
16 Accessories 16.1 Trace heating The installation of a factory-fitted heating system is not intended. Optionally, KRAL OME series flow- meters can be equipped with a trace heating system provided by the customer. The manufacturer re- commends heating systems for high-viscosity liquids that do not flow sufficiently if not heated, since this can lead to bearing damage and destruction of the unit. -
Page 37: Appendix
17 Appendix 17.1 Tightening torques for screws with metric screw threads with and without wedge lock washers 17 Appendix 17.1 Tightening torques for screws with metric screw threads with and without wedge lock washers Tightening torque [Nm] Screws with head contact surface Countersunk screws Stainless steel screws A2 and A4 Thread 5.6... - Page 38 17 Appendix 17.3 Contents of the Declaration of Conformity 17.3 Contents of the Declaration of Conformity The products described in these instructions are machinery in the sense of the Directive 2006/42/EC. The original of the EC Declaration of Conformity is enclosed with the machinery at delivery. The machinery fulfils all the relevant provisions of the following directives: Number Name...
- Page 39 Notes Operating instructions OIO 20en-GB Edition 2022-01...
- Page 40 KRAL GmbH, 6890 Lustenau, Austria, Tel.: +43/5577/86644-0, E-Mail: kral@kral.at www.kral.at...
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