Related Manuals for KRAL OME Series
Summary of Contents for KRAL OME Series
- Page 1 Operating instructions KRAL Flowmeter. OME Series OIO 15en Edition 2020-05 Original instructions www.kral.at...
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Page 2: Table Of Contents
Table of contents About this document Installation, removal and connection □ □ Target groups Safety instructions for installation and removal □ Symbols used □ □ Installation Danger levels ▪ Installation types □ Further associated documents ▪ Preferred installation variant ▪ Recommendations for alternative installation variants Safety... -
Page 3: Target Groups
Target groups The operating instructions form part of the flowmeter. The operating instructions must be kept for future About this document reference. Furthermore please observe the associated documents. Target groups Target group Tasks □ Operator-owner Keep these instructions available at the installation site for future reference. -
Page 4: Further Associated Documents
Further associated documents Further associated documents Calibration certificate Declaration of conformity according to EU Directive 2006/42/EC Manufacturer's declaration as per EU Directive 2014/68/EU Corresponding operating instructions for pick ups Corresponding operating instructions for temperature sensor Corresponding operating instructions for electronic equipment OIO 15en Edition 2020-05 Operating Instructions... -
Page 5: Proper Use
Proper use Safety □ Use KRAL flowmeters of the OME series solely for flow measurement of lubricating liquids that are chemically neutral and do not contain any gas or solids content. □ Do not use flowmeters outside the operating limits specified on the rating plate and in the "Technical data"... -
Page 6: Type Code
Type code Type code Labeling 1 Series 2 Size 3 Sensor technology 4 Function of sensor technology OME-020.FAAABB.0001 5 Material of bearing 6 Material of seal 7 Mechanical connection 8 Electrical connection 9 Version index Fig. 1 Type code Item Designation Description Series... -
Page 7: Rating Plate
Rating plate Rating plate 1 Serial number 2 Construction year 3 K-factor 4 Preferred flow direction 5 Maximum temperature 6 Type ® 7 Maximum pressure Fig. 2 Rating plate Operating Instructions OIO 15en Edition 2020-05... -
Page 8: Operational Limits
Operational limits Operational limits Technical data The values specified on the rating plate and the calibration certificate apply. The permissible operational limits of individual values influence each other so that every application is checked individually by the manufacturer when selecting the flowmeter. If no operating data are provided by the orderer, standardized substitute operating data are used. -
Page 9: Noise Levels
KRAL flowmeters operate almost silently. Heating system A heating system is not installed at the factory. The customer can optionally fit OME-series KRAL flowmeters with a trace heating system. The manufacturer recommends heating systems for high- viscosity liquids that do not flow sufficiently if not heated, because bearing damage and destructive of the device may otherwise result. - Page 10 Heating system 1 Heat insulation 2 Trace heating 3 Pick up with connecting cable 4 Piping 5 Temperature sensor with connecting cable 6 Junction box 7 Flowmeter X Area stringently without heat insulation Fig. 2 Flowmeter with trace heating system CAUTION Defective pick up, temperature sensor or cabling due to exceeding of the maximum temperature.
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Page 11: Pipe Thread Connection
Dimensions and weights of OME with pipe thread connection Dimensions and weights of OME with pipe thread connection Pipe thread Flowmeter length without end Pick up hole connection Outside dimension Total length OME 13 OME 20 OME 32 OME 52 [inch] 1/2"... -
Page 12: Load Capacity
Load capacity Load capacity Load capacity OME 13 100000 50000 10000 5000 2000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 5000 2000 1000 A Short-time operation B Continuous operation C Pressure loss D Flow The values apply for lubricating liquids at temperatures of up to 120 °C. Abrasive and aggressive liquids reduce the durability. -
Page 13: Load Capacity Ome
Load capacity Load capacity OME 20 100000 50000 10000 5000 2000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 5000 2000 1000 10,5 13,5 A Short-time operation B Continuous operation C Pressure loss D Flow The values apply for lubricating liquids at temperatures of up to 120 °C. Abrasive and aggressive liquids reduce the durability. - Page 14 Load capacity Load capacity OME 32 100000 50000 10000 5000 2000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 10000 1000 5000 2000 A Short-time operation B Continuous operation C Pressure loss D Flow The values apply for lubricating liquids at temperatures of up to 120 °C. Abrasive and aggressive liquids reduce the durability.
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Page 15: Load Capacity Ome
Load capacity Load capacity OME 52 100000 50000 5000 10000 2000 1000 1000 h 5000 h 10000 h 30000 h 100000 50000 2000 1000 10000 5000 17,5 52,5 87,5 122,5 157,5 A Short-time operation B Continuous operation C Pressure loss D Flow The values apply for lubricating liquids at temperatures of up to 120 °C. -
Page 16: Description
3 Measuring screw small 6 Measuring screw large KRAL flowmeters belong as screw meters to the group of rotating displacement meters. In a screw meter a special form allows an almost tight engagement of two intermeshing screws 3, 6 to be achieved. -
Page 17: Signal Generation
Signal generation Signal generation A pick up samples the measuring pulses directly on the screw. The pick up generates a specific number of pulses per flow volume unit - depending on the size and working point. This device-specific characteristic is called the K-factor (unit: Pulse/Liter) and can be found on the rating plate and the enclosed calibration certificate. -
Page 18: Linearization
Temperature compensation If the KRAL flowmeter is additionally equipped with a temperature sensor, the current density of the flowing liquid can be calculated from this measured value by means of a density table stored in the flow management unit. -
Page 19: Unpacking And Checking The State Of Delivery
Unpacking and checking the state of delivery Transportation, storage and disposal 1. On delivery unpack the KRAL flowmeter and check for damage during transportation. 2. Report damage during transportation immediately to the manufacturer. 3. Store the supplied pick ups and temperature sensors for the installation. -
Page 20: Load Capacity Ome
Disposal Removing the preservation Aids: □ Solvents suitable for the preservative oil □ Vessels to collect the preservative oil WARNING Risk of injury through emitted preservative oil. ► Wear protective clothing during all the work on the flowmeter. ► Open the blind flange carefully in order to reduce any pressure that may exist in the flowmeter. ►... -
Page 21: Safety Instructions For Installation And Removal
"Trace heating system", page 9. Installation KRAL flowmeters can be operated in any installation position. Notice: Both directions of flow are possible. The preferred flow direction is indicated on the rating plate by means of a bright arrow, see Fig. -
Page 22: Preferred Installation Variant
Installation Preferred installation variant Flow vertically from bottom to top ► Preferred installation variant. Recommendations for alternative installation variants Flow vertically from top to bottom No vertical installation with open outlet ► Ensure that the liquid does not flow freely out ►... -
Page 23: Protect The Flowmeter Against Soiling
"Installation", page 21. Protect the flowmeter against soiling KRAL flowmeter as rotating displacement meters need pure liquids for operation. In case of impurities, solid content or abrasive fine particles in the liquid during operation, the flowmeter has to be protected additionally by a correspondingly dimensioned operating filter in the pipe system. -
Page 24: Installing The Flowmeter
Installation 1 Linear offset 2 Vertical offset 3 Angular offset Fig. 3 Incorrect flange connections Installing the flowmeter CAUTION Damage to the flowmeter through impurities in the pipe system. ► Ensure that the pipe system has been cleaned carefully. ► During welding work attach cover plates in front of the connecting flanges. ►... -
Page 25: Electrical Connection
Electrical connection Electrical connection Safety instructions for electrical installation The following safety instructions must be observed during the electrical installation: □ The following qualifications are required for the electrical connection: ▪ Practical electrotechnical training ▪ Knowledge of the safety guidelines at the workplace ▪... -
Page 26: Function Test
Function test Function test Operation Test Procedure Installation ► Check the installation position of the flowmeter with regard to the flow direction. ► Check the installation and installation position of the pick ups and of the temperature sensor. ► Check the pipe threading/flange and the temperature sensors for leaks under operating pressure. -
Page 27: Switching Off The Flowmeter
Switching off the flowmeter Switching off the flowmeter Safety instruction for switching off the flowmeter Pay attention to the following when switching off the flowmeter: □ Strong changes to the flow rate (e.g. rapid shutdown, pulsations ...) cause marked pressure differences on the flowmeter and can damage the measuring unit. -
Page 28: Re-Calibration Of The Flowmeters
Recalibration and maintenance of your KRAL flowmeter ensures its measuring precision and technical functionality. The manufacturer provides the factory calibration as standard. If higher requirements are placed on the measuring instrument, an accredited calibration according to EN ISO/IEC 17025 is also possible. -
Page 29: Mounting Instructions
Mounting instructions Mounting instructions General drawing 915.2* 070.2* 739.2 739.1 070.1* 915.1* 064** 739.3** 817.4 672.2 817.3 817.2 672.1 817.1 Fig. 1 Exploded view OME 13 / 20 / 32 / 52 Distance sleeve 739.2 O-ring 064** Supporting ring 739.3** O-ring 070.1* End cover... -
Page 30: Removing Seals And Bearings
Mounting instructions Removing seals and bearings Installing seals and bearings Prerequisites: Prerequisites: □ □ Flowmeter removed from system Replacement parts available □ Sensors removed 1. Insert the O-ring 739.2 into the measuring housing 128. Place on the end cover 070.2*, tighten the socket screws 915.2* with torque, 1. -
Page 31: Possible Faults
Possible faults Faults can have different causes. The following tables list the symptoms of a fault, the possible causes Troubleshooting and measures for elimination. Possible faults Fault Possible cause / Remedy □ Flowmeter leaks 1, 2, 10 □ No flow 3, 11, 12, 24, 26, 27 □... - Page 32 Troubleshooting Possible cause Remedy Flow rate too low ► Increase the flow rate - or - ► Use a suitable flowmeter size - or - ► Use linearization, while observing the electronic operating instructions. Flow rate too high ► Reduce the flow rate - or - ►...
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Page 33: General Drawings
General drawings General drawings Appendix 915.2* 070.2* 739.2 739.1 070.1* 915.1* 064** 739.3** 817.4 672.2 817.3 817.2 672.1 817.1 Fig. 1 Exploded view OME 13 – 52 Pipe thread connection 915.4* 115.2* 739.2 115.1* 739.1 915.3* 739.3** 064** 817.4 672.2 817.3 817.2 672.1... -
Page 34: Spare Parts
Spare parts Spare parts Pos. no. Part Pos. no. Part Distance sleeve 739.2 O-ring 064** Supporting ring 739.3** O-ring 070.1* End cover 817.1 Deep-groove ball bearing 070.2* End cover 817.2 Deep-groove ball bearing 115.1* Flange 817.3 Deep-groove ball bearing 115.2* Flange 817.4 Deep-groove ball bearing... -
Page 35: Accessories
As an option the manufacturer offers a junction box that facilitates the electrical connection of the various sensors for the flowmeters of the OME series. Up to three sensors can be connected. The sensor cables are combined to form a multi-strand connecting cable which can be supplied as well optionally if required. -
Page 36: Mounting The Junction Box
Accessories Mounting the junction box Mounting the junction box on OME 13 - 32 Mounting the junction box on OME 52 Figure shows OME 20 as an example 1. Disconnect the cables of the pick up and the 1. Dismantle the junction box lid 7. temperature sensor 1. -
Page 37: Connecting The Extension Cable
Accessories Connecting the extension cable Normally the line length does not influence the functional efficiency of the sensors. However, we recommend not extending the connection cable of the junction box beyond a maximum length of 100 m. Extension cable as well as cable plug and cable box are available as accessories from the manufacturer. -
Page 38: Contents Of The Ec Declaration Of Conformity
Contents of the EC Declaration of Conformity Contents of the EC Declaration of Conformity The flowmeters described in these operating 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 fulfills all the relevant provisions of the following directives: Number Name... -
Page 39: Notes
Notes Notes Operating Instructions OIO 15en Edition 2020-05... - Page 40 KRAL GmbH, 6890 Lustenau, Austria, Tel.: +43 / 55 77 / 8 66 44 - 0, E-Mail: kral@kral.at www.kral.at...
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