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Overpressure Leak Detector

1. 6 General Notes ideas la ee ea IF vae d e FF 6 Changing the operating method or the pressure Jevel rss sne rr sn renar Lnn nan 7 Operating Instructions ik a ta iE 7 Generali Notes aere dee EEGEN 7 Maintenances etit i Taf 8 Functional TOS UNG i ydyin isio EE Ee eee B oie a 8 ilest SCcOpez o bi Sa tn esset ter tti cde 8 Checking the Free Passage of Air in the Interstitial Space rr ennen rr nana 8 Testing the switch values eau 3 2 ciento o cd eerie alia ict eee oe Sect IFI anni 8 Testing the Tightness After Initial Operation and Repair 9 Testing the Tightness as Part of the Annual Function Test 9 Creating the Operating Conditions snanar ant nennen nennen nnns 9 RRE ie e EE 9 R N V N 9 r udis os rutin an davidson co a eiua ANA bailey RR KUN SNS SS ER 9 Diagram L PANAMA 10 M1 073 000 Installation example operating method 5 11 M2 073 000 Installation example operating method 5 12 M3 073 000 Installation example operating method 13 M4 073 000 Installation example operating method 14 SL 853 300 Wiring Diagram 0 nn rss ses rss ss ss AR RSS RAR ARSA RAR RKS nnne nnns 15 Appendix A
2. Determine the cause for the alarm correct it and then perform a function test for the leak detection system per the Functional Testing section on page 8 5 Inthe event of a malfunction only the red signal light will be lit up yellow is off Notify the manufacturer Removal For the removal of units which can cause an explosion risk the following points must be observed in particular e Follow applicable rules for electrical disconnection Make sure the unit is free of gas before and during removal work Seal any openings gas tight through which the explosion atmosphere can carry over Do not use spark producing electrical tools saws parting grinders etc for removal If this is unavoidable be certain to observe EN 1127 Uselow spark tools Avoid the buildup of electrostatic charges e g through friction Properly dispose of contaminated components possibly through outgassing Mark ng Electrical data Serial number Type ID Date of manufacture month year Manufacturer ID Statutorily specified symbols The connection s can be connected to areas that require devices of category 3 group Il G Ti to T3 hA to IIB pp 10 Diagrams Key for diagrams 01 02 06 05 09 14 19 24 1 24 2 24 3 25 29 30 44 45 51 57 59 14 69 70 71 76 77 88 99 102 103 104 105 106 Alarm signal light red Shut off valve Connecting coupling Fill Shut off va
3. will last for one year 50 litre gas cylinder Display from 0 to 7 10 litre gas cylinder Display 0 or 1 The smaller the above value the tighter the system The expression of these values depends on a number of factors including the setting for the supply pressure on the pressure reducer The above statement is therefore meant to be a guideline nominal value and cannot provide a final statement regarding the actual tightness of the system The following values mean 50 litre gas cylinder Display from 8 to 10 Gas cylinder will probably need to be changed before the year has passed 10 litre gas cylinder Display from 2 to 10 Gas cylinder will probably need to be changed before the year has passed Display from 15 Inquiry not possible generally set to operating method M 19 20 DECLARATION OF CONFORMITY This declaration applies to the OVER PRESSURE LEAK DETECTOR LD UPP 2 With this declaration Franklin Fueling Systems verifies the above mentioned leak detector complies with the protection requirements specified in EU directive 89 336 EEC for adjustment of statutory regulations of the member states electromagnetic compatibility or German law for electromagnetic compatibility EMVG from November 9 1992 section 1 This declaration applies to items produced according to the documentation technical description drawing s that is part of this declaration The following regulations were applied to eva
4. Secondary Contained pipes Fittings and Leak Detection Medium 16 Appendix B Switch and Pressure Values nnns 17 Appendix TD Technical Data nee nn enema 18 Appendix DP Evaluation of the display from the function Tightness 19 DECLARATION OF CONFORMITY Ann ARR LL anas ansa KEE 20 Work Sheet AB 820 500 edere di ee d 21 Pneumatic Connechons eene ert nnne nennen en KRKA LL FL on 21 Unit Mounting 23 Product Description The LD UPP 2 is an Over Pressure leak detector for secondary contained pipe work using pressurized air or inert gas as the leak detection medium The leak detector can be operated with a permanently connected gas cylinder operating method S static as well as a portable priming gas cylinder operating method M mobile Operative Range Requirements for the Interstitial Spaces Proof of pressure resistance of the interstitial space see Appendix B Column Test minimum test pressure of the interstitial space Proof of suitability of the interstitial space for Germany Proof of suitability from construction authority Tightness of the interstitial space see section 6 4 4 The number of interstitial spaces to be monitored depends on the total interstitial space volume According to EN 13160 10 m3 353 Cubi
5. ary adjust pressure with pressure control valve Gas Cylinder tank volume for operating method S 1 Agas oylinder containing 10 to 50 litres can be used up to a interstitial space volume 5m 2 For more than 5 m a gas cylinder containing 50 litres must be used Power Specifications 1 Power supply According to label 2 Fixed wiring i e no plug or switch connections 3 Regulations of power supply companies must be adhered to Terminal layout see also SL 853 300 Connection Terminals Power supply Reserved with internal magnetic valve External signal in the event of an alarm there will be a line voltage present is turned off by activating the audible alarm key 3 4 5 6 11 12 Dry relay contacts opened in case of alarm or loss of power 17 18 For operating method M when the pressure backfeed is required is not reached these connections have 12 V Suitable for connection of a relay 12 V to activate an alarm Reserved with internal sensor Power Connections Initial Operation Repair General Notes 1 Observe all guidelines listed earlier 2 Flush the interstitial space with inert gas when walls of storage medium are not considered impermeable 3 lfaleak detector is operated on a pipeline that is already in operation special protective measures must be taken for example testing of free gases in the leak detector and or the interstitial space Ad
6. c feet may not be exceeded For reasons of control of the tightness of interstitial spaces it is recommended not to exceed 4 m 141 cubic feet For pipes The pipe length per pipe duct to be monitored may not exceed 2500 m 2734 yards and must correspond with the specifications for the approval of the pipe Pipes Secondary contained pipes made of metal or plastic in factory or on site construction Operating method S for surface and underground installed secondary contained pipes Operating method M only for applications with temperature variations of less than 10 C for example secondary contained pipes installed underground or indoors no hot media Fittings Secondary contained fittings made of metal or plastic in factory or on site construction Operating method S for surface and underground installed secondary contained fittings Operating method M only for applications with temperature variations of less than 10 C for example secondary contained fittings used underground or indoors no hot media Liquid to be conveyed and leak detection medium Liquids which are hazardous to the environment including those with flash points below 55 C Limitations result in accordance with Appendix A from liquid to be conveyed and the leak detection medium that is used The conveyed product may not react with the leak detection medium The pipe fitting shall be resistant against the conveyed p
7. ditional measures may be necessary depending on the local conditions and must be assessed by qualified personnel 4 After completion of the pneumatic connection connect power 5 Ascertain lighting of Operation and Alarm signal lights and the audible alarm Turn off the audible alarm if necessary With operating method S the power supply activates the automatic backfeed 6 Pressure build up filling the interstitial space Press the Fill key and hold down for about 5 seconds until the yellow signal light is blinking The magnetic valve will open to quickly fill the interstitial space When the specified pressure has been reached the filling process is turned off and the yellow signal light will go out With very large interstitial spaces it may be necessary to switch gas cylinders Note If no pressure buildup is achieved with the gas cylinder connected the leak must be located and corrected check the settings for the pressure reducer as well if necessary Note Display on the leak detector begins with 150 mbar pressure 7 t may be necessary to press the Fill key repeatedly to achieve complete filling of the interstitial space 8 Check all connections for leaks with a foaming agent 9 Function test per the Functional Testing section Changing the operating method or the pressure level 1 Switch settings 1 9 are designed to select the level of pressure Switch setting 10 is designed to select t
8. dup check the switch values for Alarm OFF and Backfeed here Filling OFF c Record the values d Remove the gas cylinder The test is considered passed if the specifications per Appendix B have been met Disconnect the measuring instrument Open all shut off cocks in the connection s Testing the Tightness After Initial Operation and Repair 1 Insert the test measuring instrument into the test coupling 2 The test measuring instrument will display the current pressure 3 The tightness check is approved for one year of trouble free operation if the following conditions have been met Operating method S The test time per 100 litre interstitial space volume is 8 minutes 1 mbar pressure loss is permitted within this specified test time If a pressure loss of 1 mbar cannot be measured this will result in the multiplication of the pressure loss according to the same multiplication of the test time Example Interstitial space volume 1500 litres Test time with 1 mbar measurable pressure loss 1500 100 x 8 7 120 minutes Test time with 10 mbar measurable pressure loss 120 x 10 1200 minutes 20 hours Operating method Determine the difference between the measured values for Backfeed Fill OFF and Alarm ON and convert into mbar x 1000 Divide the calculated value by 8760 This results in a maximum tolerated pressure loss per hour to prevent triggering of an alarm befor
9. e in the case of a leakage proceed as in Item E Unit Mounting Dimensions To remove the cover To open the cover BxHxT 266 x 217 x 110 Dimension Drilling 23 2011 FFS 408001012 rev 1 d Franklin Fueling Systems www franklinfueling com 3760 Marsh Road Madison WI 53718 U S A Tel 41 608 838 8786 Fax 1 608 838 6433 Tel USA amp Canada 1 800 225 9787 Tel M xico 001 800 738 7610 Franklin Fueling Systems GmbH Rudolf Diesel Strasse 20 e 54516 Wittlich GERMANY Tel 449 6571 105 380 e Fax 449 6571 105 510 Franklin Fueling Systems LTD 8 Olympus Close Whitehouse Industrial Estate Ipswich Suffolk IP1 SUN United Kingdom Tel 44 1473 243300 Fax 44 1473 243301
10. e one year has passed If the determined value cannot be measured this will result in the multiplication of the pressure loss according to the same multiplication of the test time Example Difference between the above named switch values 1 75 bar value measured onsite 1 75x 1000 1750 1750 8760 0 2 mbar h approved pressure loss The measuring instrument onsite shows only one value of 5 mbar This means the readability is 25 times 5 0 2 This extends the test time to 25 hours 4 Disconnect the test measuring instrument after the tightness test has been completed Testing the Tightness as Part of the Annual Function Test 1 Perform an Inquiry of Tightness Procedure See page 4 2 Evaluate the displayed value visible on the display for 10 seconds per Appendix DP This appendix serves informational purposes only and is not part of the permit Creating the Operating Conditions 1 Seal the housing and the test valve s at the end of the interstitial space pointing away from the leak detector with lead 2 If shut off cocks have been installed in the connections they must be sealed if connected to an interstitial space with lead in an opened position 3 Make sure that for operating method S the gas cylinder is filled sufficiently Alarm I Malfunction 1 Red and yellow signal lights light up the audible signal sounds 2 Turn the audible signal off Inform the installation company immediately 4
11. he alarm The triggered alarm will go off shortly after letting go of the key Testing the Optical and Audible Alarm Press the audible alarm key and hold down about 10 seconds The alarm will be triggered until the key is released This inquiry is only possible if the pressure in the system has exceeded the Alarm OFF pressure Inquiry for Tightness of the Monitored System Press the audible alarm key and hold down until the red LED is flashing quickly Release the key and press again The display shows a value for the tightness Refer to Testing the Tightness as Part of the Annual Function Test page 9 10 seconds after displaying this value the leak detector will return to normal operation This inquiry can only be performed in operating method S The leak detector must have performed at least one automatic backfeed interval in normal operation i e without manual activation of the filling function to achieve a valid statement Alarm Filling audible Device activated Condition alarm malfunction verified ON ON ON ON OFF ON BLINKING ON BLINKING ON BLINKING ON ON OFF Depending upon pressure and or audible signal on or off Installation Instructions General Notes Only qualified service companies must be used for installation Comply with relevant regulations for prevention of accidents Comply with Explosion Protection Regulations when necessary Compliance with the relevant traff
12. he operating method DIP Switch 2 The operating method M or S can be set or changed at the construction site by changing the position of switch number 10 on the switchboard Operating method S Operating method 3 Switch settings for pressure levels switches 1 9 are shown in Appendix B 4 Ifthe switch settings 1 9 are changed at the construction site it must be assured that the set pressure level does not exceed the set pressure for the overpressure valve Operating Instructions General Notes If the leak detection system has been properly installed and is free of leaks trouble free operation can be assumed Leak detector electric cannot be turned off With operating method even very small leaks will trigger the alarm n the event of an alarm determine the cause and correct it immediately The leak detector must be disconnected from power for any repairs to be performed on the leak detector Aloss of power is indicated by the Operating signal light going off A loss of power to the relay contacts if used for alarm transmission triggers the alarm After the power loss the green signal light lights up again and the dry relay contacts no longer generate an alarm unless the power loss has caused the pressure to drop below the alarm pressure Use operating method M For secondary contained pipes fittings installed underground or indo
13. iances produced according to the documentation in accordance with internal GM documentation technical description with drawings which are constituents of this declaration Evaluation of the product was accomplished The following documents were used for this purpose EN 1127 1 1997 EN 13463 1 2001 EN 13160 1 2003 The ignition hazard of analysis risk evaluation indicated no further hazards Work Sheet AB 820 500 Pneumatic connections A Flare type fitting for flare type pipes Lubricate the O rings Place the intermediate ring loosely in the threaded connection piece Push the union nut and the thrust collar over the pipe Tighten the union nut manually Tighten the union nut until clearly increased force is needed Finished assembly turn by a further 74 of a revolution 9 guide co m B Clamping ring threaded fitting for plastic and metal pipes Insert the support sleeve into the end of the pipe Insert the pipe with support sleeve as far as it will go Tighten the thread until strong resistance can be clearly felt Lightly loosen the nut Tighten the nut until resistance can be felt nut must exactly match the thread of the basic body 5 om C Olive threaded fitting for plastic and metal pipes Insert the reinforcing sleeve into the end of the pipe Knock in the reinforcing sleeve Push the union nut and the olive over the end of the pipe Screw the union nut by hand until you feel a
14. ic regulations is required when transporting gas cylinders to and from the construction site The gas cylinder must be protected from falling over at the construction site Provide sufficient ventilation if the operation is performed in enclosed spaces Attach information sign Provide a test valve on the end facing away from the leak detector at the end of the pipe s or fitting s Before entering inspection chambers test the oxygen content and flush the inspection chamber if necessary Personal Protective Equipment The parts listed here refer in particular to safety when working with systems that may be subject to risk of explosion If work is performed in areas in which an explosive atmosphere may be expected the minimum required equipment is as follows Suitable clothing risk of electrostatic charge Suitable tools in accordance with EN 1127 Suitable gas warning equipment calibrated to the existing vapor air mixture Work should be performed only at a concentration of 5096 below the lower flammable limit follow local codes if applicable Measuring equipment to determine the oxygen content Ex O Meter Installation of the Leak Detector The Leak Detector is normally mounted on walls with plugs and screws This can be in a dry room or outdoors in a suitable protection box If installed in a protection box additional outdoor signal or alarm forwarding via dry relay contacts to a switchboard or
15. ion directive The risk evaluation was performed based on the table in Appendix B informative for EN 13160 If the evaluation of the device categories has different results due to operational regulations or for any other reasons the use of the leak detector must be checked separately Walls of storage medium Overpressure valve for Operating Suggested leak detection medium interstitial space method or use of the leak detector prohibited Permeable e g unlined plastic M Use prohibited pipe TIT Use prohibited Not permeable e g UPP pipe Exists Inert gas air pressure approved to EN14125 meg Does not exist Inert gas air pressure m metgas 1 The leak detector with inert gas can only be used for this application if the operator assesses the interstitial space to be a zone 2 N The use of air pressure does not present any problems with interstitial spaces for pipes fittings with a medium transporting area that is not permanently filled with products e g filling lines When air pressure is used for interstitial spaces of pipes fittings with a medium transporting area that is permanently filled with product it must be assured that the product conveying equipment e g pumps is suitable for zone 0 because in the event of a leak air will be pressed into the product transporting system If the pressure supply is from a pressure gas bottle the pressure gas bottle must be equipped with residual pressu
16. luate the product regarding electromagnetic compatibility EN 50081 1998 Emission EN 61 000 3 2 EN 64 000 3 3 EN 61 000 6 2 1999 Resistance to jamming With this declaration Franklin Fueling Systems verifies that the above mentioned leak detector corresponds with protection requirements specified in the EU directive 73 23 EEC for the adjustment of the statutory regulations of the member states regarding electrical operating means for use within certain voltage limits or in the 1st regulation of the device safety laws from June 11 1979 This declaration applies to items that are produced according to The documentation technical description drawing s that is part of this declaration The following regulations were applied to evaluate the product regarding its use within certain voltage limits EN60335 1 1988 EN61010 1 1993 EN61010 A1 1992 With this declaration Franklin Fueling Systems verifies that the above mentioned leak detector corresponds with protection requirements specified in the EC Directive 94 9 EEC for alignment of the legal regulations of the member states for equipment and protective systems for intended use in explosion hazard areas or in the 2d Code on the Equipment Protection Law dated 12 December 1996 The leak detector may be connected with its pneumatic components to monitoring chambers of tanks requiring equipment regarding category 3 This declaration applies for appl
17. lve The range of settings for the pressure reducer to be used must be selected in correspondence with the application or the pressure to be set see appendix B Gas cylinder and pressure reducer function test and initial operation 1 Remove the protective cover after the gas cylinder has been set up securely 2 Install the pressure reducer on the cylinder 3 Close the shut off valve on the pressure reducer 4 Install the connection between the leak detector and the pressure reducer 5 Turn the pressure control valve all the way back 6 Open the cylinder shut off valve if necessary check seal between pressure reducer and cylinder 7 Setthe pressure on the pressure reducer according to Appendix B with the pressure control valve on the pressure reducer adjust after pressure build up if necessary 8 After completion of the function test with operating method or to change the cylinder Close the shut off valve on the pressure reducer Close the cylinder shut off valve Remove the pressure reducer from the cylinder Attention Gas will escape until the pressure reducer has no pressure Install protective cover on cylinder 9 For cylinder change continue with Secure setup then remove protective cover Install pressure reducer if necessary Check seal between pressure reducer and cylinder Open oylinder shut off valve Open shut off valve on the pressure reducer and if necess
18. lve on the pressure reducer Operating signal light green Pressure reducer Gas cylinder Fine wire fuse Exterior Signal T1A Fine wire fuse Transformer T32mA Fine wire fuse Magnetic valve T8OmA Bottle stop valve Key Fill Housing Magnetic valve Signal light Backfeed Test coupling Test valve Relay Pressure Leak Detector Buzzer Overpressure valve Audible alarm key Main circuit board Pressure control valve Secondary contained pipe secondary contained fittings or combination of both Inspection chamber Pressure sensor Display Operational network e g air nitrogen Control unit Contacts for serial data transmission M1 073 000 Installation example operating method S ES M2 073 000 Installation example operating method S Installation example operating method M3 073 000 13 Installation example operating method M4 073 000 A 14 SL 853 300 Wiring Diagram 16 Appendix A Secondary Contained Pipes Fittings and Leak Detection Medium For conveying products with a flash point of gt 55 C air or inert gas can be used as long as the leak detection medium is compatible with the product The following statements apply only to applications to transport liquids with flash points of less than 55 C The following statements are based on a risk evaluation according to the directive 94 9 EEC explos
19. nect the pressure tank per the Gas Cylinder and Pressure Reducer function test and initial operation section on page 5 b Activate Fill c Build up pressure to specified pressure Check the pressure on the pressure reducer during the filling procedure test pressure may not be exceeded and adjust if necessary d Once the filling process has been completed close the shut off valve on the pressure reducer and disconnect the test measuring instrument and the air cylinder Testing the switch values 1 If several interstitial spaces are connected through one distribution system close all shutoff cocks on the distributor except for the shut off cock for the interstitial space with which the test is performed Insert a manometer into the test coupling Open the test valve at the end of the interstitial space included in the test pointing away from the leak detector Check the switch values for Automatic Backfeed or Backfeed required the yellow signal light is lit up and for Alarm ON Record the values Close the test valve Operating method S During the pressure buildup automatic filling check the switch values for Alarm OFF and Backfeed OFF activate Fill if necessary Record the values Operating method M Connect the gas cylinder per the Gas Cylinder and Pressure Reducer function test and initial operation section on page 5 a Activate Fill b During the pressure buil
20. o Franklin Fueling Systems Overpressure Leak Detector Installation and User Manual Model LD UPP 2 Franklin Fueling Systems 3760 Marsh Rd Madison WI 53718 USA Tel 1 608 838 8786 800 225 9787 Fax 1 608 838 6433 www franklinfueling com Contents Product Description M 3 Operative Range E E eta 3 Requirements for the Interstitial Spaces ss nanna 3 pes e 3 RULLO EE 3 Liquid to be conveyed and leak detection medium 3 Functional Description A e t pee aaa 3 Normal Operation ni etuer deer oe tet 3 Function incase of a leak iere a ledere geb Le cet ab etd eee quaa 3 Description of indicator Lights 4 Overpressure valve ue e DR tee aad a odd ded aee EEN 4 Operating functions through kees 4 Installation Instructions rr 5 General Notes a sid i nee tio ee e a dete dte ue ee TY et LT 5 Personal Protective Equipment rr n nn 5 Installation of the Leak Detector ann 5 Guidelines for Installation of connections leak detector interstitial 5 Selection of the pressure reducer rr 5 Gas cylinder and pressure reducer function test and initial 5 Gas cylinder tank volume for operating method ET 6 Power Specification Sicani o erro RU RO HE Eee rta dt a dote 6 Initial Operation 22 5
21. ors per the Operative range section Use operating method S For secondary contained pipes fittings installed above or underground Feed pressure must be at least 1 bar lower than the minimum alarm pressure Use of medium pressure air as the leak detection medium Air pressure can always be used with transport media having a flash point above 55 C For transport media with a flash point below 55 only if their explosive vapor air mixtures can be assigned to temperature code T1 to T3 and gas group 1IA or II B and if they have an inner wall that is not permeable for media that can lead to the development of explosive vapor air mixtures Use of nitrogen as the leak detection medium Follow guidelines in Appendix A Maintenance Maintenance work and function tests must be performed by qualified personnel only Once a year to ensure functional and operational safety Follow guidelines in the Test Scope section Compliance with the conditions per Installation and Initial Operation Repair sections must also be tested Perform tightness testing per the Testing the Tightness After Initial Operation and Repair section Functional Testing The functional and operational safety tests must be performed After each initial operation Once a year After each repair Test Scope 1 Coordinate the work to be performed with those responsible for operation on site if necessary 2 Observe the safety instr
22. re monitoring In case of a notification fall below the set residual pressure the pressure gas bottle is to be refilled or replaced with a full one Appendix B Switch and Pressure Values If possible leak detectors that are operated with operating method M should be operated without overpressure valves Tvpe iti Poor P Application B Position of DIP PR F DM LD UPP 2 switch bar bar 1 Monitor double Unpres 2 8 0 15 6 5 0 2 73 4 2 5 wall filling lines surized and double wall suction lines Monitor double 3 8 0 2 7 5 0 2 gt 4 5 3 5 wall pressure The following abbreviations are used in the table Pg Maximum operating pressure in the inner pipe transportation pressure dynamic pressure pressure due to geodetic height differences Switch value Alarm ON the alarm will be triggered at this pressure level Pia Switch value Alarm OFF alarm will be deactivated if this value is exceeded P Ba 7250 mbar Pp Switch value Backfeed OFF specified pressure PPE Switch value Backfeed ON Ppa 7250 mbar Popvi Specified pressure to activate overpressure valve 1 interstitial space Pupy2 Specified pressure to activate overpressure valve 2 supply P Minimum test pressure of interstitial space The overpressure valve DV1 can be omitted if it can be assured that the pressure in the interstitial space will not exceed the test pressure e g thro
23. re in the interstitial space is monitored with a pressure sensor in the leak detector Any minor leaks lead to decreased pressure which will be egualized during operating method 5 For operating method M the requirements for the tightness of the interstitial space s and the connection s must be set very high to assure trouble free operation for one year Function in case of a leak If there is a leak in the inner or outer wall gas will leak from the interstitial space The pressure falls When the switch value Backfeed ON is reached in operating method S the backfeed will be activated and the specified pressure will be built up again If the leakage rate is greater than the limited backfeed rate the pressure will continue to fall to alarm pressure An optical and audible alarm will be triggered when the alarm pressure is reached which will open the dry relay contacts An additional relay can be used for operating method to establish dry relay contacts when the specified pressure backfeed required is not reached Overpressure valve If the interstitial space has sufficient pressure resistance refer to Appendix B an overpressure valve will not be supplied If overpressure valves are used the test pressure of the interstitial space represents the layout basis for the set pressure for the overpressure valve This means that overpressure valves from higher pressure levels can be used for a certain pre
24. roduct Proof of this will be required by third parties standards operators manufacturer of pipe fitting Functional Description The Over Pressure leak detector LD UPP 2 monitors both walls of the secondary contained system for leaks The monitoring pressure during operation is higher than any pressure on the inner or outer wall so that leaks will be indicated through falling pressure Inert gas or air from a pressure tank or an operational network can be used as leak detection media If air is used it must be dried to less than 1096 relative humidity The current pressure is shown on the display in mbar bar or PSI Changing the bar and PSI settings is performed at the factory This can also be changed on site following coordination with the manufacturer Values of less than 150 mbar or less than 2 18 PSI will not be displayed Values between 100 and 990 mbar will be displayed in mbar and without decimal Values from 1 bar are displayed in bar with two or from 10 bar with one decimal Values in PSI are displayed with one or two decimals Switch and pressure values A list of switch values is shown in Appendix B Normal Operation The normal operation condition is achieved during initial operation by building up pressure to the specified pressure through the gas cylinder connected to the leak detector using operating method S or the priming gas cylinder if using operating method M The existing pressu
25. similar device can be added DO NOT install the Leak Detector in an area classified as hazardous danger of explosions Lead through into and out of the dome shaft or inspection chambers for connections shall be closed gas tight Guidelines for Installation of connections leak detector interstitial space Use metal generally Copper or plastic pipes with a minimum pressure resistance corresponding with the test pressure in the interstitial space Also applies to fittings and screwed connections Note temperature range especially with use of plastic e Inside clearance at least 4 mm for inert gas as leak detection medium at least 6 mm for air as leak detection medium 50 m should not be exceeded significantly If 50m is exceeded install pipe with greater inside clearance using transition pieces The full cross section must be maintained Do not crush or bend If necessary install commercial plastic pipe fittings with specified bend radii Metal or plastic tubes that are installed underground or above ground should be installed inside a conduit Close the protective pipe gas tight and protect it from moisture Avoid the buildup of electrostatic charges eg During the pulling of lines Grounding in accordance with valid regulations For details regarding connection systems see worksheet AB 820 500 Selection of the pressure reducer The pressure reducer must have an integrated overpressure va
26. ssure level alarm pressure as well refer to Appendix B The overpressure valve 1 interstitial space must be used if a pressure increase exceeding the test pressure for example warming can occur and or the set pressure on the pressure reducer is higher than the test pressure of the interstitial space The overpressure valve 2 supply must be used if the set pressure of the overpressure valve integrated in the pressure reducer is higher than the test pressure of the interstitial space Description of indicator Lights Operating Backfeed Signal Lights Condition active or required OPERATION Green ON ON ALARM Red OFF OFF BACKFEED Yellow OFF ON Operating functions through keys Turning Off the Audible Alarm Press Audible Alarm key once audible signal turns off the red LED blinks Pressing the key again will turn the audible signal on This function is not available during normal operation and function errors Filling the Interstitial Space With Leak Detector Medium Press Fill key and hold down for about 5 seconds until the yellow LED is blinking The filling process has been activated When the specified pressure has been reached the yellow signal light will go out and the filling process is turned off If the pressure falls due to pressure equalizing processes the filling process can be reactivated to fill the interstitial space completely Holding this key down for more than 10 seconds will trigger t
27. stop Press the pipe against the stop in the inner cone Tighten the union nut by approx 1 5 revolutions pipe must not turn Loosen the union nut check whether the pipe visibly projects from under the cutting ring it doesn t matter if the clamping ring can be turned 8 Retighten the union nut using normal force pim gv m ox 21 22 D Quick action fitting for PA and PUR tubes Make a right angled cut in the PA pipe Loosen the union nut and push it over the end of the pipe Push the pipe onto the nipple up to where the thread begins Tighten the union nut by hand Further tighten the union nut using a wrench until clearly increased force is needed approx 1 to 2 revolutions NOT suitable for PE pipes ooe w o gt E Tube connections socket 4 and 6 mm for EXCESS PRESSURE 1 Push wire or screw clip over the tube 2 Push the tube onto the Cu pipe or the tube socket if necessary heat or dampen PVC tube tube must fit tightly all the way round 3 Wire clip clamp tightly using pliers and push onto the joint 4 Screw clip push the clip over the joint and tighten it using a screwdriver care must be taken that the clip is a smooth tight fit F Tube connections socket 4 and 6 mm for VACUUM For vacuum applications where there is no excess pressure on the connection lines even in the case of a leakage proceed as in item 5 but without clips For vacuum applications where excess pressure could aris
28. uctions for working with the liquid to be conveyed 3 Checkthe test valve at the end of the interstitial space pointing away from the leak detector for contamination and clean if necessary 4 Check the free passage of air or nitrogen in the interstitial space see below 5 Check the switch values see below 6 Check tightness following initial operation or repair see below 7 Check tightness as part of the annual function test see below 8 Creating the Operating Conditions see below 9 Aqualified person must complete a test report confirming functional and operational safety Checking the Free Passage of Air in the Interstitial Space If several interstitial spaces are connected in parallel each one must be checked for passage 1 Insert a measuring instrument into the test coupling The current pressure in the interstitial space will be displayed 2 Open the test valve for the first connected interstitial space 3 Check that the measuring instrument registers a pressure drop 4 Close the test valve 5 Repeat procedure from steps 2 to 4 for each additional test valve for the interstitial space s connected to this leak detector Note With operating method S if automatic back feed is activated during this process perform the filling process and then continue the test o With operating method M the pressure that has fallen due to the test must be egualized as follows a Con
29. ugh warming and that the set pressure on the pressure reducer is lower than the test pressure of the interstitial space If pressure valves DV1 from higher pressure levels are used sufficient pressure resistance of the interstitial space shall be guaranteed The overpressure valve DV2 can be omitted if the test pressure of the interstitial space is higher than the specified pressure of the overpressure valve integrated in the pressure reducer 17 Appendix TD Technical Data 18 1 Electrical data Input capacity without external signal 230V 50Hz 20W Switching contact load terminals AS 23V 50Hz 1A Switch contact load dry relay contacts Max 230V 50z 2A Min 10V 10mA External fuse protection of the leak detector Max 10A Overvoltage category LL nn ness 2 2 Pneumatic Data Requirements for the Test Measuring Instrument Nominal Size cn a aet dE Ba une atleast 100 Class precisiOn2 5 ttti gts cessit tud at least 1 6 End scale Value ueu iW TW ea a suitable depending on pressure level Appendix DP Evaluation of the display from the function Tightness Test The tightness test as part of the annual function test is described on page 9 As long as the value shown on the display does NOT exceed the following nominal values it can be assumed that the system is so tight that the gas cylinder being used 200 bar filling

Overpressure Leak Detector

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