Operating Instructions KRAL Volumeter – OMH Series.
Contents
1. Finding Cause Remedy Increased running noises Incipient damage to bearing Replace bearing Leakage Damage to sealing Replace seals or dry sleeve Measured values not realistic see Fault table page 39 see Fault table page 39 Tab 1 Check table for required maintenance 1 Check the volumeter visually and acoustically every four weeks 2 Check for signs of wear as listed in the table above and eliminate the cause Recalibration of the volumeters In order to maintain the high degree of measuring accuracy KRAL recommends carrying out the first recalibration after about one year of operation The results reveal any wear starting on the measuring unit The interval at which recalibration is actually required depends strongly on the operating conditions of the device KRAL provides the factory calibration as standard If higher requirements are placed on the measuring instrument calibration in compliance with the KD Austrian Calibration Service to ISO IEC EN 17025 is also possible OIO 08en Edition 03 2012 Operating Instructions Mounting instructions OMH 13 Mounting instructions OMH 13 Removing seals and bearings 739 5 468 Fig 1 Fig 2 Fig 3 039 Distance sleeve 468 Supporting ring 817 2 Deep groove ball bearing 041 Sleeve 672 1 Large measuring screw 817 3 Deep groove ball bearing 062 Spacer 672 2 Small measuring screw 817 4 Deep groove ball bearing 080 1 Bearing cover 739 1 O ring 92. KRAL E KRAL Volumeter OMH Series Operating Instructions OIO 08en Edition 03 2012 Original operating instructions KRAL Volumeter OMH Series Table of contents About this document O Target groups O Symbols O Danger levels O Associated documents Safety O Proper use O Safety information Labeling O Type code O Rating plate Technical data O Operating limits Maximum values Substitute operating data O Sound pressure level O Dimensions and weights OMH with pipe thread OMH with DIN flange OMH with SAE flange O Load capacity Load capacity OMH 13 Load capacity OMH 20 Load capacity OMH 32 Load capacity OMH 52 Load capacity OMH 68 Load capacity OMH100 Function description O Description Rolling bearings Signal generation Linearization I Ma u ed Flow direction detection Transportation storage and disposal O Unpacking and checking the state of delivery O Lifting the volumeter E Storage O Preservation Preserving the volumeter Removing the preservative O Disposal Installation removal and connection O Safety instructions for installation KRW WwW O 18 18 19 19 19 20 20 20 21 22 22 OIO O8en Edition 03 2012 and removal O Installing the volumeter Installation types Protect the volumeter against contamination Connecting the volumeter to the pipe system O Electrical connection Safety instructions for
3. 100000 50000 10000 5000 2000 mm7 s 18 16 1000 14 12 000 h 10 C 500 8 QOU ojejeie j B 4 QOUU 200 r EAA a 100 50 241 10 l gt l 2 0 N De u x E in x D 7 0 y 140 210 280 350 420 490 560 630 700 770 840 910 980 1050 Ei m N 4 oi 50 100 150 yAl l P l l 100000 S 50ta 5000 2000 1000 mm s 500 3 2 C 200 1 100 50 10 2 0 5 105 140 175 210 245 280 315 350 oO l min amp ol 10 15 20 25 30 35 40 45 50 oO Short time operation Continuous operation Pressure loss Flow rate moO WwW gt Qrated The values apply for lubricating liquids at temperatures of up to 120 C Abrasive and aggressive liquids reduce the durability 16 OIO O8en Edition 03 2012 Operating Instructions Load capacity Load capacity OMH100 100000 50000 10000 5000 mm s 1000 500 C 200 100 50 10 5 E 2 T x D 20 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 NI Z 1 N 50 100 150 l a S l Ma NSI 100000 gt 50000 i 10000 5000 2000 1000 mm s 500 3 2 C 200 1 100 z i 2 o 3 D 20 100 200 300 400 5
4. Notice 821 1 and 821 2 are four point bearings Avoid damage to the threads Screw the socket screw 915 6 out again and remove the supporting rings 868 1 and 868 3 Remove the o ring 739 5 through the hole in the center from the bearing cover 080 1 see Fig 24 page 36 Mounting seals and bearings E 10 11 12 13 Operating Instructions OIO 08en Edition 03 2012 37 Insert the o ring 739 5 into the pick up hole Slide the circlips 870 1 870 3 and supporting rings 868 1 868 3 onto the large 672 1 and small 672 2 measuring screws Press the ball bearings 821 1 821 2 817 2 and 817 4 onto the large and small measuring screws Notice Press on only over the inner ring Pull the NORD LOCK wedge lock washer 904 2 and supporting disc 064 2 onto the socket screw 915 7 and grease the thread Notice Ensure that the NORD LOCK wedge lock washers are positioned correctly wedge surface to wedge surface see Fig 26 page 36 Mount the socket screw 915 7 with mounted wedge lock washer and supporting disc onto the small measuring screw 672 2 and tighten using the torque wrench Tightening torque see Tab 2 page 45 Slide the large and small measuring screws into the bearing cover 080 1 Mount the circlips 870 1 and 870 3 Slide the sleeve 041 onto the large measuring screw Press the pole wheel 259 on Pull the NORD LOCK wedge lock washer 904 1 and supporting disc 064 1 onto the socket screw 915 6 grease the thread Notice Ens
5. Operator owner O Keep these instructions available at the installation site for future reference warnings O Ensure that employees read and observe these instructions and the associated documents in particular the safety instructions and O Observe additional system specific directives and regulations Specialist personnel fitters O Read observe and follow these instructions and the associated Symbols documents in particular the safety instructions and warnings Symbol Meaning Warning personal injury Notice Procedures mechanical installation Procedures electrical installation Check or fault table nNAN D Request for action Danger levels Warning Danger level Consequences of non observances A Danger Immediate threat of danger Serious personal injury death A Warning Possible threat of danger Serious personal injury invalidity A Caution Potentially dangerous situation Slight personal injury Caution Potentially dangerous situation Material damage Operating Instructions OIO O8en Edition 03 2012 About this document About this document Associated documents Associated documents Calibration certificate Declaration of conformity according to EU Directive 2006 42 EC Manufacturer s declaration as per EU Directive 97 23 EC Corresponding operating instructions for pick ups Corresponding operating instructions for electronic equipment
6. Remove the socket screws 915 1 and 915 2 take off the bearing cover 080 2 Remove the o ring 739 2 Use light blows of a plastic tip hammer to drive the set of screws together with the bearing cover 080 1 out of the measuring housing 128 and pull out see Fig 14 page 33 Remove the o ring 739 1 Loosen the circlips 870 2 and 870 5 from recesses in the bearing cover see Fig 15 page 33 Screw out the socket screw 915 6 Remove the lock washer 904 1 and supporting disc 064 1 Overview see Fig 17 page 33 Turn in the socket screw 915 6 back completely in order to pull the pole wheel 259 and bearing cover 080 1 from the set of screws using a pulling off device Remove the spacer ring 056 Screw out the socket screw 915 6 Remove the measuring screws from the bearing cover 080 1 Screw out the socket screw 915 7 with lock washer 904 2 and supporting disc 064 2 at the small measuring screw 672 2 Remove the circlips 869 2 and 869 4 and supporting rings 868 2 and 868 4 from the large and small measuring screw Pull the bearings from the screws using the pulling off device Remove the o ring 739 5 and supporting ring 468 from the bearing cover 080 1 see Fig 16 page 33 Mounting seals and bearings Fig 18 Fig 19 080 1 Bearing cover 468 Supporting ring 739 5 O ring 868 3 Supporting ring 868 5 Supporting ring 870 2 Circlip 870 5 Circlip en two units if two pick up holes exist OIO 08en Edition 03 2012
7. The following safety instructions must be observed during all the work gt All the work may only be carried out by authorized qualified personnel gt Wear protective clothing during all the work gt Replacement of the measuring unit consisting of the set of screws rolling bearings and pole wheel may only be carried out in the factory gt The volumeter has to be recalibrated after the measuring unit or the rolling bearings have been replaced gt Observe the pick up operating instructions when replacing the pick up insert gt Do not twist the dry sleeve The guarantee for the KRAL volumeter expires if the red sealing point is damaged Also observe the general drawings during all the work at the volumeter see General drawings page 40 Required maintenance KRAL volumeters are fundamentally maintenance free If the operating limits are observed see Technical data page 7 no significant change in the characteristics can be established even after years of use in many cases Conditions lying clearly above the nominal flow rate can however result in excessive wear In the case of liquids with higher abrasiveness e g heavy oil with catalyst residues plastic components with fillers etc strongly accelerated wear can occur in the volumeter Notice In case of doubt we recommend the first inspection of the volumeter after twelve weeks operation time Signs of progressive wear of individual volumeter elements
8. 1 OMH 32 100 mm 0 34 Tab 1 Mesh width of the operating filter Checking the function Test Procedure Installation Check the flow direction of the volumeter Check the installation and installation position of the pick ups Check for leaks at the pipe threading flange under operating pressure Electrical installation gt Observe the operating instructions for pick ups and electronic equipment Power supply Observe the operating instructions for pick ups and electronic equipment Tab 2 Function check table Commissioning the volumeter Prerequisite O The ambient conditions correspond to the operating data see Technical data page 7 Volumeter connection to the pipe system is free of mechanical stress Pipe system is free of contamination and dirt particles Pipe system deaerated E L E O Shut off devices in the supply and discharge lines opened OIO 08en Edition 03 2012 Operating Instructions Switching off the volumeter Va CAUTION Measuring error when pressure drops below the minimum pressure at the outlet Operation gt Ensure that the liquid does not flow freely out of the volumeter CAUTION Measuring error through gas inclusion in the pipe system gt Before commissioning make sure that the volumeter is filled Deaerate the pipe system Switch on the system The volumeter measures when the pick up generates a signal Switching off the volumeter
9. 43 55 77 8 84 33 www kral at E Mail kral kral at
10. Deep groove ball bearing 869 4 817 2 Deep groove ball bearing 6722 817 4 817 3 Deep groove ball bearing 817 4 Deep groove ball bearing 869 2 Circlip ID Zan d 869 4 Circlip N 904 1 Lock washer Io Co 904 2 Lock washer 915 6 Socket screw 915 7 Socket screw two units if two pick up holes exist m only for OMH 32 Fig 9 Prerequisites L L L Volumeter removed from system End connections consisting of socket screws flanges and seals removed Pick up inserts removed Take off the bearing cover 080 1 and remove the o ring 739 1 Remove the o ring 739 5 and supporting ring 468 through the hole in the middle of the bearing cover see Fig 7 page 31 Pull the distance sleeve 039 together with the set of screws out of the measuring housing see Fig 8 page 31 Remove the circlips 869 2 and 869 4 from the large and small measuring screws 5 Screw out the socket screws 915 6 and 915 7 and remove the lock washers 904 1 904 2 and Operating Instructions OIO 08en Edition 03 2012 31 supporting discs 064 1 064 2 Overview see Fig 9 page 31 Turn in the socket screw 915 6 back completely in order to pull the pole wheel 259 and spacer ring 056 from the large measuring screw 672 1 using a pulling off device Remove the socket screw 915 6 again Pull the ball bearings from the screws using the pulling off device Maintenance Maintenance Mounting instructions OMH 20 32 Mounting seals and bearings NN N
11. OIO 08en Edition 03 2012 Operating Instructions Proper use Proper use E E Use KRAL volumeters of the OMH series solely for flow measurement of lubricating liquids that are chemically neutral and do not contain any gas or solids content KRAL volumeters require the operation with clean liquids If coarse contamination solid particles in the liquid or abrasive fine particles occur during operation the volumeter has to be protected additio nally by a correspondingly dimensioned operating filter in the pipe system see Cleaning the pipe system page 26 Only use volumeters within the operating limits specified on the rating plate and in the Technical data section Deviating operating data can result in damage to the volumeter In the case of opera ting data that does not agree with the specifications on the rating plate please contact KRAL Strong changes to the flow rate e g rapid shutdown pulsations cause marked pressure differen ces on the volumeter and can damage the measuring unit The pressure loss of the volumeter must not exceed the values given in the section Technical data see Load capacity page 12 Safety information The following safety instructions must be observed Operating Instructions OIO O8en Edition 03 2012 5 O No liability is accepted for damage arising through non observance of the operating instruc tions Read the operating instructions carefully and observe them
12. OX SK AR gt 739 5 L N S x Q Korehe RZS OY amp 039 Distance sleeve A Grooved insert pin 080 1 Bearing cover 468 Supporting ring 739 5 O ring two units if two pick up holes exist 1 Press the ball bearings 817 1 817 2 817 3 and 817 4 onto the large 672 1 and small 672 2 measuring Screw Notice Press on only over the inner ring 2 Slide the spacer ring 056 onto the large measuring screw 672 1 Press the pole wheel 259 on Pull the NORD LOCK wedge lock washers 904 1 and 904 2 and supporting discs 064 1 and 064 2 onto the socket screws 915 6 and 915 7 and grease the thread Notice Ensure that the NORD LOCK wedge lock washers are positioned correctly wedge surface to wedge surface see Fig 10 page 32 4 Mount the socket screws 915 6 and 915 7 onto the large and small measuring screws and tighten using the torque wrench Tightening torque see Tab 2 page 45 5 Mount the circlips 869 2 and 869 4 on the floating bearing side 6 Slide the set of screws in the measuring housing Slide the distance sleeve 039 into the hole of the small measuring screw 672 2 see Fig 11 page 32 7 Lay the supporting ring 468 and o ring 739 5 through the hole in the middle of the bearing cover into the pick up hole see Fig 12 page 32 Correct position of supporting ring and o ring see Fig 13 page 32 8 Insert the o ring 739 1 into the bearing cover 080 1 9 Place the bearing cov
13. Operating Instructions Mounting instructions OMH 52 68 10 11 12 13 14 Operating Instructions OIO O8en Edition 03 2012 35 Lay the supporting ring 468 and o ring 739 5 through the hole in the middle of the bearing cover into the pick up hole see Fig 18 page 34 Correct position of supporting ring and o ring see Fig 19 page 34 Slide the circlips 870 2 870 5 and supporting rings 868 3 868 5 onto the small measuring screw 672 2 and large measuring screw 672 1 Observe the sequence Correct position of circlip and supporting ring at OMH 52 see Fig 20 page 34 Press the ball bearings 818 1 and 817 2 onto the large measuring screw and ball bearings 818 2 and 817 4 onto the small measuring screw Notice Press the angular contact ball bearings on in X layout Press the ball bearings on only over the inner ring Pull the NORD LOCK wedge lock washer 904 2 and supporting disc 064 2 onto the socket screw 915 7 and grease the thread Notice Ensure that the NORD LOCK wedge lock washers are positioned correctly wedge surface to wedge surface see Fig 21 page 34 Pull the socket screw 915 7 with mounted washers onto the small measuring screw 672 2 using the torque wrench Tightening torque see Tab 2 page 45 Slide the large and small measuring screws into the bearing cover 080 1 Mount the circlips 870 5 and 870 2 Slide the spacer 056 onto the large measuring screw Press the pole wheel 259 on Pull the NORD LOCK
14. Safety instruction for switching off the volumeter Pay attention to the following when switching off the volumeter O Strong changes to the flow rate e g rapid shutdown pulsations cause marked pressure differences on the volumeter and can damage the measuring unit The pressure loss of the volumeter must not exceed the values given in the chapter Technical data see Load capacity page 12 The limit values shown in the following table must not be exceeded even for a short time OMH 13 OMH20 OMH32 OMH52 OMH68 OMH100 Tab 3 Pressure loss limits Switching off the volumeter When the flow through the volumeter is stopped the generation of the signal stops automatically No further measures are required to switch off Recommissioning the volumeter Prerequisite O The requirements for commissioning are met see Commissioning page 26 CAUTION Damage to device through hard gummy or crystallized liquid in the volumeter gt Before commissioning ensure that there is no hard gummy or crystallized liquid in the volumeter Disassemble and clean the volumeter before recommissioning or gt Heat up the liquid during standstill by means of a heating system 2 Switch on the system Under the requirements mentioned above the volumeter is ready for operation at any time Operating Instructions OIO O8en Edition 03 2012 27 Maintenance Safety instructions L NE 28 Safety instructions
15. bearings 817 3 and 817 4 onto the small measuring screw 672 2 Notice Press the ball bearings on only over the inner ring Press the pole wheel 259 onto the large measuring screw Lay the supporting ring 468 and o ring 739 5 through the hole in the middle of the bearing cover into the pick up hole see Fig 4 page 30 Correct position of supporting ring and o ring see Fig 5 page 30 Push the screw set into the measuring housing 128 paying attention to the configuration Slide the distance sleeve 039 into the hole of the small measuring screw 672 2 see Fig 6 page 30 Insert the o ring 739 1 into the measuring housing Lay on the spacer 062 ensuring that it is positioned correctly see Fig 2 page 29 Place the bearing cover 080 1 onto the measuring housing ensuring that the grooved insert pins A in the measuring housing fit into the corresponding holes Tighten the socket screws 915 1 Mount the flange cover while pretensioning the oiled screws crosswise Tightening torque see Tab 2 page 45 OIO 08en Edition 03 2012 Operating Instructions Mounting instructions OMH 20 32 Mounting instructions OMH 20 32 Removing seals and bearings 039 Distance sleeve 056 Spacer ring 064 1 Supporting disc 064 2 Supporting disc i _ 080 1 Bearing cover _ calli 128 Measuring housing lt 259 Pole wheel 468 Supporting ring 672 1 Large measuring screw 672 2 Small measuring screw 739 5 O ring Fig 7 Fig 8 817 1
16. end This preferred direction is based on the aim to position the pick up of the low pressure end for the case that the volumeter is blocked Linearization The calibration certificate contains a mean K factor that has been determined for the flow range 10 1 and that can therefore be used across a wide flow range However the K factor shows slightly different values at different flow rates These are also documented in the enclosed calibration certificate If highest measuring precision is required it is therefore advisable especially at strongly varying flow rates to take these different values into consideration by means of a Linearization The K factors are therefore fed into a suitable electronic unit across several interpolation values of the flow rate The K factor relevant for the flow rate being measured is then determined by means of linear interpolation between the two nearest interpolation values The viscosity dependence of the K factors must also be taken into account These are determined during calibration at a viscosity of approximately 4 2 mm s The influence of the flow rate on the K factor decreases at higher viscosities so that the mean K factor can then also be used in a considerably larger flow range without noteworthy errors Flow direction detection Systems with a changing flow direction as well as systems with pressure pulsations that can also cause a reversal of the flow direction require the use of a second pick
17. flange connection Operating Instructions OIO O8en Edition 03 2012 D Outer diameter L3 Flange thickness DN Nominal diameter flange L2 Volumeter length without 11 Technical data O Load capacity 8 Load capacity O Load capacity OMH 13 C C QO 100000 50000 10000 5000 2000 mm s 18 1000 16 14 12 10 000 h r 500 8 6 QUU 4 B 0000 200 j Ey EF 1 I Q000 100 2 l 50 10 i l ae a u E T R x D 01 14 2 3 4 5 6 7 8 9 140 U 2 13 14 15 1_i sl Si SS 1 NR 50 100 150 vz l N I Z S l N s 100000 SAI 50000 10000 5000 2000 1000 mm2 s 500 2 C 200 1 100 T 50 Short time operation Continuous operation Pressure loss Flow rate moO WwW gt Qrated The values apply for lubricating liquids at temperatures of up to 120 C Abrasive and aggressive liquids reduce the durability 12 OIO 08en Edition 03 2012 Operating Instructions Load capacity Load capacity OMH 20 100000 50000 10000 5000 2000 1000 mm s 18 16 14 1000 h 12 500 10 C 8 QUU 6 B JUOU 200 4 zz oo
18. wedge lock washer 904 1 and supporting disc 064 1 onto the socket screw 915 6 and grease the thread see installation step 4 Pull the socket screw 915 6 with mounted washers onto the large measuring screw 672 1 using the torque wrench Tightening torque see Tab 2 page 45 Mount the supporting rings 868 2 and 868 4 and circlips 869 2 and 869 4 on the floating bearing side Lay the o ring 739 2 into the bearing cover 080 2 and fasten with socket screws 915 2 to the measuring housing 128 Insert the o ring 739 1 into the bearing cover 080 1 Slide the bearing cover 080 1 with premounted measuring unit consisting of set of screws bearings and pole wheel into the measuring housing 128 tighten the socket screws 915 1 Mount the flange cover while pretensioning the oiled screws crosswise Tightening torque see Tab 2 page 45 Maintenance Maintenance Mounting instructions OMH100 36 Mounting instructions OMH100 Removing seals and bearings 915 6 041 064 1 064 2 080 1 128 259 672 1 672 2 739 1 064 2 9 041 904 1 259 064 1 870 3 Sleeve 739 5 O ring Supporting disc 817 2 Deep groove ball bearing Supporting disc 817 4 Deep groove ball bearing Bearing cover Measuring housing Pole wheel Large measuring screw Small measuring screw O ring Prerequisites O Volumeter removed from the system O End connections consisting of socket screws flanges and seals removed O Pick up inserts removed 8
19. 0 1690 1760 1949 1920 13 Qmin 12 2 12 8 16 9 17 6 19 5 19 2 Observe the flow range If the value lies below Q refer to the operating instructions of the corresponding pick up Tab 3 Additional maximum values using BEG 45 OMH 20 OMH 32 OMH52 OMH68 OMH100 Number of poles 7296 2560 1014 302 167 87 6 0 137 0 391 0 986 3 311 5 988 11 416 P I ml P K factor Milliliters per pulse Pulse frequency f4 Qmax Hz 1824 1920 2535 2643 2923 4380 f4 Qrated 1216 1280 1690 1762 1948 2920 f4 Qmin 12 2 12 8 16 9 17 6 19 5 29 2 Tab 4 Additional maximum values using BEG 53A Substitute operating data The following table shows standardized values of the flow rate temperature and viscosity These values can be used at the same time as maximum values without impairing the service life of the volumeter In addition the operating limits of the corresponding end connection of the sealing material and of the pick ups are to be observed OMH 13 OMH20 OMH32 OMH52 OMH68 OMH100 Flow rate OF l min 10 30 100 350 700 2000 Orica 10 30 100 350 700 2000 Orn 0 2 0 6 2 7 14 40 Pressure max bar 420 420 420 420 420 250 Temperature min max C 20 120 Viscosity min max mm2 s 1 200 Tab 5 Substitute operating data Sound pressure level KRAL volumeters operate almost silently 8 OIO
20. 00 600 700 800 900 1000 S amp S 1 5 10 15 20 25 30 35 40 45 50 A Short time operation B Continuous operation C Pressure loss D Flow rate E Orated The values apply for lubricating liquids at temperatures of up to 120 C Abrasive and aggressive liquids reduce the durability Operating Instructions OIO O8en Edition 03 2012 17 Technical data Function description Description Description Fig 1 Structure of the volumeter OMH series 1 Connection 6 Measuring screw large 2 Bearing cover 7 Ball bearing fixed bearing side 3 Measuring housing 8 Pick up hole 4 Measuring screw small 9 Pole wheel 5 Ball bearing floating bearing side KRAL volumeters belong as screw meters to the group of rotating displacement meters The fluid current makes the measuring unit rotate The displacement effect results from the continuous filling axial displacement and discharge of the volumes that are formed by the measuring housing and measuring unit The measured liquid flows around and lubricates all the rotating parts Thanks to the displacement principle the volumeter does not require inlet and smoothing sections in its supply and discharge Depending on the customer requirements the volumeters can be equipped with suitable end connections for connection to various flanges Rolling bearings The measuring unit is maintained without contact and with a low degree of friction in the housing of the KRAL volumeter by means of precisio
21. 08en Edition 03 2012 Operating Instructions Dimensions and weights Dimensions and weights OMH with pipe thread G Pipe thread M18x1 Pick up hole D Outer diameter L1 Total length L2 Volumeter length without connections T Screw in depth max Fig 1 Dimensional drawing OMH with pipe tread OMH 13 OMH 20 OMH 32 OMH 52 OMH 68 OMH100 mm 150 fres fess feao ans Tson E im je je dm soa Im je je ee je ea Tab 6 Dimensions and weights Pipe thread connection Operating Instructions OIO O8en Edition 03 2012 Technical data Technical data OMH with DIN flange 10 OMH with DIN flange DN Nominal diameter flange M18x1 Pick up hole D Outer diameter L1 Total length L2 Volumeter length without connections L3 Flange thickness TK Pitch circle Fig 2 Dimensional drawing OMH with DIN flange OMH 13 OMH 20 OMH 32 OMH 52 OMH 68 OMH100 Tab 7 Dimensions and weights DIN flange connection OIO 08en Edition 03 2012 Operating Instructions OMH with DIN flange OMH with SAE flange M18x1 Pick up hole L1 Total length connections Fig 3 Dimensional drawing OMH with SAE flange DN Class D L1 L2 L3 Mass OMH 13 1 Y 20 OMH 32 OMH 52 OMH 68 inc ps 1000 sooo 6000 eooo son fmm oo fas feo fee Tess fmm iso fies ess feao fees e es s o jas mi 8 e o o fs 7 e e e Tab 8 Dimensions and weights SAE
22. 15 1 Socket screws 128 Measuring housing 739 5 O ring 259 Pole wheel 817 1 Deep groove ball bearing two units if two pick up holes exist Prerequisites E L L Operating Instructions OIO 08en Edition 03 2012 29 Volumeter removed from system End connections consisting of socket screws flanges and seals removed Pick up inserts removed Remove the socket screws 915 1 take off the bearing cover 080 1 Remove the o ring 739 5 and supporting ring 468 through the hole in the middle of the bearing cover see Fig 1 page 29 Remove the spacer 062 and o ring 739 1 pull the screw set together with distance sleeve 039 from the measuring housing 128 Take the combination into account to ensure subsequent assembly see Fig 2 page 29 Pull the pole wheel 259 ball bearing 817 1 sleeve 041 and ball bearing 817 2 from the large measuring screw 672 1 and the ball bearings 817 3 and 817 4 from the small measuring screw 672 2 see Fig 3 page 29 Maintenance Maintenance Mounting instructions OMH 13 30 Mounting seals and bearings 080 1 Q u J Fig 6 039 Distance sleeve A Grooved insert pin 080 1 Bearing cover 468 Supporting ring 739 5 O ring two units if two pick up holes exist 1 Slide the sleeve 041 onto the large measuring screw 672 1 while taking the mounting direction into account see Fig 3 page 29 Press the ball bearings 817 1 and 817 2 onto the large measuring screw 672 1 and the ball
23. 21 1 821 2 868 1 868 2 868 3 868 4 Four point bearings Four point bearings Supporting ring Supporting ring Supporting ring Supporting ring OIO O8en Edition 03 2012 869 2 869 4 870 1 870 3 904 1 904 2 915 6 915 7 868 3 904 2 p 2 y 57 u Circlip Circlip Circlip Circlip Lock washer Lock washer Socket screw Socket screw Operating Instructions Mounting instructions OMH100 BI 9 10 Remove the socket screws 915 1 and 915 2 take off the bearing cover 080 2 Remove the o ring 739 2 Use light blows of a plastic tip hammer to drive the set of screws together with the bearing cover 080 1 out of the measuring housing 128 see Fig 22 page 36 and pull out Remove the o ring 739 1 Loosen the circlips 870 1 and 870 3 from recesses in the bearing cover see Fig 23 page 36 screw out the socket screw 915 6 Remove the lock washer 904 1 and supporting disc 064 1 Turn in the socket screw 915 6 back completely in order to pull the pole wheel 259 and bearing cover 080 1 from the set of screws using a pulling off device Remove the sleeve 041 Overview see Fig 25 page 36 Remove the measuring screws from the bearing cover 080 1 Screw out the socket screw 915 7 with lock washer 904 2 and supporting disc 064 2 at the small measuring screw 672 2 Remove the circlips 869 2 869 4 and supporting rings 868 2 868 4 from the measuring screws Pull the bearings from the screws using the pulling off device
24. EC Declaration of conformity EC Declaration of conformity Appendix KRAL Pumpen Volumeter EC DECLARATION OF CONFORMITY for machinery in accordance with Annex Il 1 A Directive 2006 42 EC Translation of the original declaration Manufacturer of the machinery KRAL AG Bildgasse 40 A 6890 Lustenau Description of the machinery Pump Pump station Volumeter Type Serial number KRAL AG declares that this machinery fulfils all the relevant provisions of Directive 2006 42 EC Only those components are missing that are used to connect the machinery at its site of use flanged connections with the piping system if applicable fastening means at the base of the product and for pumps pump stations the connection to the source of energy and motion motor or voltage supply of the motor The special technical file in accordance with Annex VII Part A of the Directive has been drawn up Person authorized to draw up this declaration and to compile the relevant technical file in accordance with Annex VII Part A Directive 2006 42 EC Christoph Schneider Dr Ing KRAL AG Bildgasse 40 A 6890 Lustenau Lustenau on i A 2 l Dr Ing Christoph Schneider Technical Head 46 OIO 08en Edition 03 2012 Operating Instructions Notes Notes Operating Instructions OIO O8en Edition 03 2012 47 Appendix KRAL AG Bildgasse 40 Industrie Nord 6890 Lustenau Austria Tel 43 55 77 8 66 44 0 Fax
25. Fr 0000 100 2 l 50 10 2 01 5 EPES EEE IE EN Vv E N T N D 03 3 N 6 9 12 145 18 2 24 27 30 33 36 39 42 45 S Se 4 50 100 150 vl A I a I s l N 100000 nl 50000 NI 10000 5000 2000 1000 500 mm2 s 3 2 c 200 1 100 50 10 2 o0 5 T D 03 15 3 45 6 7 5 9 105 12 135 15 Ss 4 5 10 15 20 2 30 35 40 45 50 Short time operation Continuous operation Pressure loss Flow rate moO wW gt Qrated The values apply for lubricating liquids at temperatures of up to 120 C Abrasive and aggressive liquids reduce the durability Operating Instructions OIO O8en Edition 03 2012 13 Technical data Load capacity Load capacity OMH 32 100000 50000 10000 5000 2000 mm7 s 18 Technical data 1000 16 14 12 10 C 500 6 0000 0000 200 100 50 bar 100 110 120 130 140 150 LOON NI fe S E Ea ET WERNER OER d 50 100 150 oO l min h a N oa a amp A ol D o ao 100000 x 50000 NI 10000 5000 2000 1000 mm s 500 c 200 1 100 50 bar oO l min o o N N o amp amp or A A O o 10 15 20 25 30 35 40 45 50 oO Short time operation Continuous operation Pressure loss Flow
26. The operator owner is responsible for the observance of the operating instructions Installation removal and installation work may only be carried out by specialist personnel Volumeters wear to different degrees depending on the respective operating conditions pul sations temperature Do not continue to use volumeters that are operated contrary to specifications or after damage Check the volumeters regularly Shut down damaged volumeters and replace worn volumeters immediately In order for the warranty to remain valid corrective maintenance carried out during the war ranty period requires the express permission of the manufacturer Observe the general regulations for the prevention of accidents as well as the local safety and operating instructions Observe the valid national and international standards and specifications of the installation location In case of systems with an increased potential of danger to humans and or machines the fai lure of a volumeter may not lead to injuries or damage to property Always equip systems with an increased potential of danger with alarm equipment and or bypass Maintain and check the protective alarm equipment regularly The pumped liquids can be dangerous e g hot dangerous to health poisonous combusti ble Observe the safety conditions for handling dangerous materials The pumped liquids can be subject to pressure and can cause damage and or personal injury shoul
27. and disposal Aids O Solvents or industrial cleaners suitable for the pumped liquid WARNING Danger of poisoning and environmental damage from the pumped liquid Wear protective clothing during all the work on the volumeter Before disposing of the volumeter collect the discharging pumped liquid and dispose of in accordance with the locally applicable regulations Before disposing of the volumeter neutralize the residues of the pumped liquid in the volumeter 1 Disassemble the volumeter 2 Clean residues of the pumped liquid from the individual parts 3 Separate sealing elements made of elastomer from the volumeter and dispose of them in the resi dual waste 4 Recycle cast iron and steel parts 22 OIO 08en Edition 03 2012 Operating Instructions Safety instructions for installation and removal L Operating Instructions OIO 08en Edition 03 2012 23 Safety instructions for installation and removal The following safety instructions must be observed O KRAL volumeters are precision measuring devices Ensure cleanliness and take care during installation and removal Do not take apart the volumeter Do not remove the protective caps from the dry sleeves during installation Put the protective caps on the dry sleeves during removal Vvv Installing the volumeter KRAL volumeters of the OMH series can be operated in any installation position Notice Both flow directions are possib
28. d leaks occur Safety Labeling Type code Type code CUA OMH 20 807845 BEV 13 fo fo Fig 1 Type code Series Size Version index End connection Pick up Amplifier ona A WN Item Designation Description 1 Series OMH high pressure 2 Size corresponds to the diameter of the large measuring screw in mm 3 Version index for internal administration 4 End connection manufacturer specific indexing 5 Pick up 44 BEG 44 45 BEG 45 53 BEG 53A 6 Amplifier BEV 13 only in combination with pick up BEG 45 Rating plate 1 2 3 E OMH 52 708244 Fig 2 Rating plate D imax 420 bar 6890 Lustenau ees KRA Volumeten Serial number Construction year K factor Preferred flow direction Maximum temperature Type Maximum pressure NO on PB OND OIO 08en Edition 03 2012 Operating Instructions Operating limits 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 volumeter If no operating data are provided by the orderer standardized substitute operating data are used Maximum values The following table shows the respective maximum values that however may not occur simul taneously In addition the operating limits of the corresponding end connection of
29. electrical installation Connection for the pick ups O Removing the volumeter Operation O Commissioning Cleaning the pipe system Checking the function Commissioning the volumeter O Switching off the volumeter Safety instruction for switching off the volumeter Switching off the volumeter O Recommissioning the volumeter Maintenance O Safety instructions O Required maintenance O Recalibration of the volumeters L Mounting instructions OMH 13 Removing seals and bearings Mounting seals and bearings O Mounting instructions OMH 20 32 Removing seals and bearings Mounting seals and bearings O Mounting instructions OMH 52 68 Removing seals and bearings Mounting seals and bearings O Mounting instructions OMH100 Removing seals and bearings Mounting seals and bearings Troubleshooting O Possible faults O Troubleshooting Appendix O General drawings Parts list Tightening torques EC Declaration of conformity Er 12 Eas Notes 23 23 23 24 24 25 25 25 25 26 26 26 26 27 27 27 27 28 28 28 29 29 30 31 31 32 33 33 34 36 37 38 38 40 44 45 46 47 Operating Instructions Target groups The operating instructions form part of the volumeter and must be kept for future reference Furthermore please observe the associated documents KRAL Volumeter is a registered trademark of KRAL AG Target groups Target group
30. er 080 1 onto the measuring housing ensuring that the grooved insert pins A in the measuring housing fit into the corresponding holes 10 Mount the flange cover while pretensioning the oiled screws crosswise Tightening torque see Tab 2 page 45 32 OIO 08en Edition 03 2012 Operating Instructions Mounting instructions OMH 52 68 Mounting instructions OMH 52 68 Removing seals and bearings 056 064 1 064 2 080 1 128 259 468 672 1 672 2 739 1 739 2 Spacer ring Supporting disc Supporting disc Bearing cover Measuring housing Pole wheel Supporting ring 739 5 817 2 817 4 818 1 818 2 Large measuring screw 868 2 Small measuring screw 868 3 O ring O ring Prerequisites 1 Volumeter removed from the system O End connections consisting of socket screws flanges and seals removed O Pick up inserts removed Operating Instructions 868 4 868 5 904 2 915 7 064 2 O ring Deep groove ball bearing Deep groove ball bearing Angular contact ball bearings Angular contact ball bearings Supporting ring Supporting ring Supporting ring Supporting ring OIO O8en Edition 03 2012 869 2 869 4 870 2 870 5 904 1 904 2 915 6 915 7 kk 739 5 468 817 2 869 2 Circlip Circlip Circlip Circlip Lock washer Lock washer Socket screw Socket screw two units if two pick up holes exist 33 Maintenance Maintenance Mounting instructions OMH 52 68 Va 34
31. h gt Use another feed pump Carry out changes to the system OIO 08en Edition 03 2012 Operating Instructions Troubleshooting No Cause Remedy 18 Counter pressure too low Increase the counter pressure 19 Flow rate fluctuations too high Ensure a continuous flow rate by taking suitable measures use of a different pump valve damper etc or Smoothen the indication while observing the electronic operating instructions 20 Filling amount too low Use a suitable volumeter size gt Use a suitable volumeter type 21 Strongly deviating operating data gt Use a suitable volumeter gt Adapt the operating data to the volumeter 22 Wear at the measuring unit and bea Renew the measuring unit ring gt Replace the bearing Filter out the abrasive materials 23 Sluggishness through deposits Disassemble the volumeter and clean it carefully 24 Flow impaired at the system end gt Check whether the fluid flows in the system pump in operation slide valve opened etc Check whether shut off devices before and after the volumeter are opened 25 Volumeter switched to bypass Switch the volumeter to through flow Tab 1 Fault table Operating Instructions OIO O8en Edition 03 2012 39 Troubleshooting Appendix General drawings 40 General drawings Fig 1 Exploded view OMH 13 OIO O8en Edition 03 2012 Operating Instruct
32. ions General drawings 2 904 1 064 1 Fig 2 Exploded view OMH 20 32 Operating Instructions OIO 08en Edition 03 2012 41 Appendix General drawings Appendix 915 6 064 1 Fig 3 Exploded view OMH 52 68 42 OIO 08en Edition 03 2012 Operating Instructions General drawings 915 6 064 1 Fig 4 Exploded view OMH100 Operating Instructions OIO 08en Edition 03 2012 43 Appendix Appendix Parts list Parts list Pos no Part 039 Distance sleeve 817 2 Deep groove ball bearing 041 Sleeve 817 3 Deep groove ball bearing 056 Spacer 817 4 Deep groove ball bearing 062 Spacer 818 1 Angular contact ball bearings 064 1 Supporting disc 818 2 Angular contact ball bearings 064 1 Supporting disc 821 1 Four point bearing 064 2 Supporting disc 821 2 Four point bearing 080 1 Bearing cover 868 1 Supporting ring 080 2 Bearing cover 868 2 Supporting ring 107 1 Pipe threaded flange 868 3 Supporting ring 107 2 Pipe threaded flange 868 4 Supporting ring 115 1 Flange 868 5 Supporting ring 115 2 Flange 868 6 Supporting ring 128 Measuring housing 869 2 Circlip 259 Pole wheel 869 4 Circlip 468 Supporting ring 870 1 Circlip 597 1 Screw plug 870 2 Circlip 597 2 Screw plug 904 1 Lock washer 672 1 Measuring screw large 904 2 Lock washer 672 2 Measuring screw sma
33. ive and resin free oil up to approx 1 cm under the connection at the top while turning the measuring unit slowly 4 Close the upper connection with a blind flange 5 Apply non corrosive and resin free oil to all the plain and unpainted parts of the outer housing After about 6 months storage check the oil level in the volumeter and if necessary top up oil Check the preservation of the outer housing and if necessary apply oil to the parts again Notice Store the preserved volumeter cool and dry and protect it against direct sunlight Notice After a longer storage time we recommend a recalibration of the volumeter see Recalibration of the volumeters page 28 Transportation storage and disposal Disposal Removing the preservative Aids O Solvents suitable for the preservative oil O Vessels to collect the preservative oil WARNING Risk of injury through emitted preservative oil gt Wear protective clothing during all the work on the volumeter gt Remove the blind flange with caution to relieve any pressure inside the volumeter Collect the emitted oil safely and dispose of it in an environmentally compatible manner Remove one of the blind flanges Drain the volumeter collecting the preservative oil in a suitable vessel Remove the second blind flange Use a solvent to remove the residual oil or gt Rinse the volumeter with pumped liquid Pon gt Disposal Transportation storage
34. le The preferred flow direction is indicated on the rating plate by means of a bright arrow see Fig 2 page 6 Installation types Fig 1 OMH installation types The arrow with dashed line identifies the preferred flow direction when an operating filter is used Installation type Properties 1 O Without bypass O Small space requirements O With or without operating filter O Dismantling of the volumeter only with interruption of operation 2 O Manual bypass O Bypass is opened manually O With or without operating filter O Dismantling of the volumeter only with interruption of operation 3 O Bypass with 3 stop valves for flange O Dismantling of the volumeter without connection interruption of operation O With or without operating filter 4 O Bypass with 3 stop valves for pipe thread O Dismantling of the volumeter without connection interruption of operation O With or without operating filter O Minimally higher pressure loss Tab 1 OMH installation types Installation removal and connection Installation removal and connection Installing the volumeter 24 L VA Protect the volumeter against contamination Notice In order to protect the volumeter against contamination we generally recommend the installation of an operating filter mesh width see Tab 1 page 26 CAUTION Damage through impurities in the pipe system gt During welding work attach protective covers in front of the c
35. ll 915 1 Socket screws 739 1 O Ring 915 2 Socket screws 739 2 O Ring 915 3 Socket screws 739 3 O Ring 915 4 Socket screws 739 4 O Ring 915 5 Socket screws 739 5 O Ring 915 6 Socket screw 739 5 O Ring 915 7 Socket screw 817 1 Deep groove ball bearing parts for pipe thread or flange connection alternatively two units if two pick up holes exist only for OMH 32 Tab 1 Spare Parts 44 OIO O8en Edition 03 2012 Operating Instructions Tightening torques Tightening torques Tightening torque Nm for screws with metric threads head contact surfaces wedge lock washers 8 8 Rust proof A4 70 class 70 Property Stainless steel screws A2 and A4 Property class 80 with thread measured in inches Screw plugs with elastomer seal Thread Galvanized stainless steel G 1 8 13 M4 2 9 4 1 2 3 3 2 G 1 4 30 M5 6 0 18 0 4 8 6 0 3 9 3 5 4 7 G 3 8 60 M6 95 14 7 6 10 3 6 9 6 8 G 1 2 80 M8 23 1 34 184 25 17 16 22 G 3 4 120 M 10 46 68 36 8 47 33 32 43 G 1 200 M 12 80 117 64 84 56 56 75 G 1 1 4 400 M 14 127 186 101 133 89 G 1 1 2 450 M16 194 285 155 1204 136 135 180 Se EEE a ea ee E reduced tightening torque M 20 392 558 313 399 267 280 370 when screwing into aluminum Tab 2 Tightening torques Operating Instructions OIO O8en Edition 03 2012 45 Appendix
36. llowing qualifications are required for the electrical connection Practical electrotechnical training Knowledge of the safety guidelines at the workplace Knowledge of the electrotechnical safety guidelines gt The connecting lines of the connections for pick ups are to be shielded and laid separately from the supply and measuring lines gt Ensure that the power supply is correct gt Observe the operating instructions for pick ups and electronic equipment Connection for the pick ups The volumeter can be equipped with two pick ups for flow direction detection The first signal measures the flow rate the second signal determines the flow direction The pick ups have to be connected correctly in order to obtain the correct values The connections are marked on the volumeter housing with 1 and 2 This marking depends on the preferred flow direction in accordance with the arrow on the rating plate see Fig 2 page 6 In the case of a flow direction contrary to the preferred flow direction the connections have to be swapped in order to obtain a correct signal CAUTION Measuring error through incorrectly mounted pick ups gt Ensure that the pick ups are mounted at the correct position gt Observe the corresponding operating instructions for pick ups Removing the volumeter Prerequisite O System switched off Aids O Vessels for leaking pumped liquid WARNING Risk of injury through emitted hot poiso
37. n rolling bearings The bearing point at the pole wheel end is realized as a fixed bearing Depending on the respective size the following bearings are used O Single row deep groove ball bearings O Paired angular contact ball bearings O Four point bearings The bearing point at the opposite end of the measuring unit is realized as a floating bearing with a movable deep groove ball bearing at all sizes OIO 08en Edition 03 2012 Operating Instructions Signal generation Signal generation A pole wheel 9 whose pole is sampled by a pick up is affixed at the fixed bearing side of the large measuring screw 6 This 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 is specified on the rating plate as well as on the enclosed calibration certificate Possible formats of the signals are O PNP O Push pull Function description Depending on the design of the pick up either cylindrical pole wheels with embedded magnets or toothed metal disks with varying tooth density can be used higher number of poles higher K factor Various types of pick ups can be used depending on the application operating temperature required frequencies O Pick ups based on the Hall effect O Magnetic pick ups The rating plate of the KRAL volumeter lists a preferred flow direction at which the pick up lies on the flow off
38. nous or corrosive pumped liquid when removing the volumeter gt Observe the safety regulations for handling dangerous liquids gt Ensure that the volumeter is not under pressure Collect the emitted pumped liquid safely and dispose of it in an environmentally compatible manner 1 In case of operation at higher temperatures wait until the device has cooled down to the ambient temperature Drain the pipe system or divert the fuel via the bypass Dismantle the volumeter Apply the protective cover Observe the chapters Storage and Preserving on the subject of storing the volumeter oP SN Installation removal and connection Operation Commissioning Commissioning Cleaning the pipe system To protect the volumeter against contamination clean the complete pipe system carefully before commissioning Possibilities O Rinsing via bypass O Rinsing with volumeter CAUTION Damage to equipment through usage of an incorrect rinsing medium Under no circumstances may water or superheated steam be used to rinse the pipe system Rinsing via bypass Close the shut off devices before and after the volumeter or gt Rinsing with volumeter An operating filter has to be installed before the volumeter Take the mesh width of the filter into account see Tab 1 The mesh width of the operating filter is relevant to the size of the volumeter Volumeter size Mesh width max OMH 13 20 mm 0
39. onnecting flanges gt Ensure when welding that welding beads and abrasive dust cannot get into the pipe system and the volumeter After the connecting work clean the pipe system thoroughly see Cleaning the pipe system page 26 Connecting the volumeter to the pipe system The connection of the volumeter to the pipe system must be stress free A Fig 2 Flange connections CAUTION Danger of damage to the device or impaired functionality through mechanical stresses gt Ensure that the volumeter mounting on the pipe system is free of mechanical stress CAUTION Damage to device when the pipe threading is screwed in too far Observe the thread length of the volumeter Use a standard cutting ring screwed connection 1 Remove the protective covers and store them 2 Install the volumeter stress free in the pipe system while taking the preferred flow direction into account and ensure that the connections of the pick ups remain accessible 3 The screw in length of the piping may not exceed the threaded length of the volumeter since the flow cross section is narrowed and internal components can be damaged OIO 08en Edition 03 2012 Operating Instructions Electrical connection Operating Instructions OIO O8en Edition 03 2012 25 Electrical connection Safety instructions for electrical installation Observe the following safety instructions during the electrical installation O The fo
40. rate moo wW gt Qrated The values apply for lubricating liquids at temperatures of up to 120 C Abrasive and aggressive liquids reduce the durability 14 OIO O8en Edition 03 2012 Operating Instructions Load capacity Load capacity OMH 52 100000 50000 10000 18 5000 2000 mm s 16 14 12 10 bar 1000 h Oo l min ad ol amp ol a ol 140 175 210 245 280 31 350 385 420 455 490 525 P a ao 100000 NI 50000 10000 5000 2000 1000 100 mm s 500 bar oO l min amp N eo O ol N oO a Short time operation Continuous operation Pressure loss Flow rate moO WwW gt Qrated 150 1000 500 200 100 50 10 The values apply for lubricating liquids at temperatures of up to 120 C Abrasive and aggressive liquids reduce the durability Operating Instructions OIO O8en Edition 03 2012 15 Technical data Technical data Load capacity Load capacity OMH 68
41. se Remedy 1 Seal preload too low gt Preload the screws 2 Seal damaged gt Replace the seal Check the chemical resistance of the seal 3 Foreign particles in the liquid and or Disassemble the volumeter and clean it volumeter gt Use the commissioning filter 4 Pick up not positioned correctly Position the pick up correctly observing the pick up operating instructions 5 Pick up not connected correctly Check the connection of the pick up Check the power supply for the pick up while obser ving the pick up operating instructions 6 Pick up defective Check the function of the pick up while observing the pick up operating instructions 7 Dry sleeve not adjusted correctly gt Set the dry sleeve correctly while observing the pick up operating instructions 8 Dry sleeve destroyed gt Replace dry sleeve please contact KRAL for infor mation 10 Feed pressure too low Increase the feed pressure 11 Viscosity of the liquid too high Increase the temperature while observing the per missible temperature range 13 Flow rate too low Increase the flow rate or Use a suitable volumeter size or gt Use linearization while observing the electronic operating instructions 14 Flow rate too high gt Reduce the flow rate or Use a suitable volumeter size 15 Airlocks Deaerate the system and check for leaks 16 Outgassing Increase the system pressure gt Reduce the temperature 17 Pulsations too hig
42. that has a preservative effect In addition a special anticorrosive agent is sprayed onto the interior of the devices before being dispatched The connections of the volumeter are fitted with protective covers Unless otherwise specified the external components of the volumeter are preserved with a single coat PU based two component paint The preservation applied at the factory will protect the volumeter for up to six weeks if it is stored in a dry and clean location KRAL offers a long term preservation for storage times of up to 60 months In the case of long term preservation the volumeter is additionally packed in hermetically sealing anti corrosion paper OIO 08en Edition 03 2012 Operating Instructions Preservation Sim Operating Instructions OIO O8en Edition 03 2012 21 CAUTION Damage to device through corrosion if stored improperly and during longer standstills Protect the volumeters against corrosion during long standstills Observe the sections Storage and Preservation Preservation Preservation has to be carried out in the following cases O Standard delivery for storage periods exceeding six weeks and in case of adverse storage condi tions such as high humidity salty air etc O Delivery with long term preservation if the packaging has been opened or damaged Preserving the volumeter 1 Close a connection of the volumeter with a blind flange 2 Place the volumeter vertically 3 Fill non corros
43. the sealing material and of the pick ups are to be observed OMH 13 OMH20 OMH32 OMH52 OMH68 OMH100 Flow rate Oax l min 15 45 150 525 1050 3000 Qed 10 30 100 350 700 2000 een 0 1 0 3 1 0 35 7 0 20 0 Pressure max bar 420 420 420 420 420 250 Temperature min max C 20 200 Viscosity min max Imm s 11 1000000 Measuring chamber volume ml U 1 64 6 25 25 6 112 7 251 3 833 3 Rotation speed nOn min 19120 7200 5850 4658 4182 3600 N Qrated 6090 4800 3900 3105 2784 2400 Qe 61 48 39 31 28 24 Tab 1 Maximum values K2 OMH 13 OMH 20 OMH100 Number of poles 4 8 12 16 20 28 K factor P I 2432 1280 468 142 79 6 33 6 Milliliters per pulse ml P 0 411 0 782 2 14 7 04 12 56 29 76 Pulse frequency OTa Hz 608 960 1170 1243 1393 1680 f2 Orated 405 640 780 828 929 1120 f2 Qmin 4 1 6 4 7 8 8 3 9 3 11 2 Tab 2 Additional maximum values using BEG 44 Operating Instructions OIO O8en Edition 03 2012 Technical data Technical data Sound pressure level K3 OMH 13 OMH20 OMH32 OMH52 OMH68 OMH100 Number of poles 12 16 26 34 42 48 K factor P I 7296 2560 1014 302 167 57 6 Milliliters per pulse ml P 0 137 0 391 0 99 3 31 5 98 17 36 Pulse frequency 13 Qmax Hz 1824 1920 2535 2640 2927 2880 f3 Qratea 1216 128
44. up see Connection for the pick ups page 25 This additional phase offset signal and the incremental encoding inputs available in the KRAL electronic unit can be used to determine the flow direction and to take it into consideration when calculating the total values Operating Instructions OIO O8en Edition 03 2012 19 Va Transportation storage and disposal Unpacking and checking the state of delivery Unpacking and checking the state of delivery On delivery unpack the KRAL volumeter and check for damage during transportation Report damage during transportation immediately to the manufacturer Store the supplied pick ups for the installation Dispose of packing material in accordance with the locally applicable regulations pe Ny a Lifting the volumeter Fig 1 Attachment of hoisting equipment schematic dia grams WARNING Risk of injury and or damage to device should the volumeter fall 20 gt Use intact and correctly dimensioned hoisting equipment suitable for the weight to be lifted gt Choose the attachment points of the hoisting equpipment according to the center of gravity and weight distribution gt Always use at least two slings gt Do not stand under raised loads gt Attach the hoisting equipment to the volumeter see Fig 1 page 20 and lift the volumeter Storage As a result of the calibration the internal components of the volumeter are wetted with calibration liquid
45. ure that the NORD LOCK wedge lock washers are positioned correctly wedge surface to wedge surface see installation step 4 Tighten the socket screw 915 6 on the large measuring screw using the torque wrench Tightening torque see Tab 2 page 45 Mount the supporting rings 868 2 868 4 and circlips 869 2 869 4 on the floating bearing side Insert the o ring 739 2 into the bearing cover 080 2 Place the bearing cover 080 2 onto the measuring housing 128 Tighten the socket screws 915 2 Insert the o ring 739 1 into the bearing cover 080 1 Slide the bearing cover 080 1 with premounted measuring unit consisting of set of screws bearings and pole wheel into the measuring housing 128 tighten the socket screws 915 1 Mount the flange cover while pretensioning the oiled screws crosswise Tightening torque see Tab 2 page 45 Maintenance Troubleshooting Possible faults 38 M Possible faults Faults can have different causes The following tables list the symptoms of a fault the possible causes and measures for troubleshooting Fault Cause Remedy O Volumeter leaks 1 2 8 O No flow rate 3 10 22 24 25 O Negative flow rate 5 17 19 O Volumeter does not generate a pulse 3 4 5 6 7 8 10 13 20 22 24 25 O Pressure loss too high 11 14 22 23 O Measured values not realistic 3 4 5 6 7 15 16 17 18 19 20 21 22 23 Troubleshooting No Cau
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