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Load Link™ III Installation Manual
Contents
1. 2 2 44428 3 3 Wiring Load Links to Junction 3 3 Plastic J nctlon ep RECEN 34 Stainless Steel Junction BOX 3 4 Wiring Junction Boxes Together and to Signal Processor 3 5 Leveling Vessel multi point support installation 3 7 Trimming Output multi point support installation sese 3 8 Chapter 4 System 4 1 INTFOGUCUION TE 41 Live Load GaliDration 2 LABA 4 1 Manual GallDration 2 53 a 42 Chapter 5 Troubleshooting 5 1 Problem 1 Small Amplitude Changes or Erratic Fluctuations in Display Readings 5 1 Problem 2 Repeatable Drift over 24 hour Period 5 2 Problem Sudden Change in Display Reading or Frequent Recalibration Required 5 2 Appendix A Product Specifications A 1 Appendix Kistler Morse Service B 1 Product Warranty Dm B 1 a nn NN na B 1 Return Material Authoriz
2. ININUM 8 JAOW3N Ol 5539034 JHL 5 NILH U HON3MM ONY AQOH NO LAN NOISS3HdMOO ONY 4835 0086 INULA LHOILKITI NWA JHL 1 ONY ANVNOLVIS ATHN3SSV It ANN OYO JHL 3SOH WO SONULLI AT NGSSY ANN 151 LON OG SNIHOVIIY NAHM HOSS300Nd TWNOIS JHL OL ONII3AYuL 5 1N3A3Hd OF 862 ALY NO INVIYIS 0 XTLIVYIS 3OSS320Nd LY AHLN3 9114 53294805 OL SONILLLI NO 5 5 0 SINIO LINGNOD TIW 19 SONILLII LINONOD FSN LInQNOO SAYTI CIM OL 04410345 ISIMYIHLO 5531 0 SILON 405532084 1 5 OL WOldAL Ane NON 10 40 ALON indino 28 WNINMEL Z i QvO3 ct Ill ANIT avon 7vNINH3 ANA QvO3 s3ovd YOLYDIGNI OL 2 ALON 335 03SN SI 9NILLII LH UXT M3WOLSh2 039915 19130 GUION TNNIMH3L Wf ANA INT VOT tt ANA GYOT XNA QvO1 N 3015 vf S4 C9 Appendix Technical Drawings
3. k 5 7 oad Lin Load CS Cad Link Ato a le Terminal typical 4 places O O see Terminal Detail Below 1 Exc Red 2 3 4 Exc Black 5 Sig Green 6 Sig White 6066095050 8 Shield Terminal Detail rotated Figure 3 9 Wiring Load Links to Stainless Steel Junction Box Wiring Junction Boxes Together and to Signal Processor The fittings for wiring junction boxes to the other junction boxes and signal processor are described below Plastic junction box non trimming There are two versions of the plastic junction box enclosure The enclosure has one or two large holes in the bottom 1 One large hole conduited installation The large hole accommodates a 3 4 conduit fitting 2 Twolarge holes non conduited installation The two large holes are equipped with PG13 5 cable fittings Stainless steel summing junction box trimming The hole in the bottom accommodates 2 conduit fitting Chapter 3 Hardware Installation Notes 1 K Mrecommends the use of conduit for wiring the junction box to other junction boxes and signal processor K M requires the use of cable trays for non conduited installations 2 The procedure below assumes the conduit cable tray has been installed 3 Seal all conduit fittings against water entry Install drain holes at conduit cable tray lowest elevation s to allow condensation to drain 4 To wire junctio
4. Safety Cable N Elevation View Figure 3 3 Four Point Support Installation Installation Procedure WARNING 1 Use proper supports to prevent the vessel from tipping or falling during installation Do not put all the vessel load on one Load Link for a three or four point system 2 Install safety cable for each Load Link as shown in Figure 3 4 Empty the vessel 2 Locate each Load Link so the cable cannot be snagged or chafed and can be easily routed to the junction box 3 See Table 3 1 and Install Load Link and hardware Refer to Technical Drawings for typical mounting arrangements and hardware Install the Load Link with the K M label right side up Use steel rod cable or chain to connect the Load Link to the vessel and overhead support Lock threaded connections with jam nuts CAUTION Do not attach the Load Link directly to the vessel or overhead support K M requires the use of hardware such as rod end bearings eye bolts clevises etc to minimize side loading and torque forces on the Load Link Hardware can be supplied by the customer or is available from K M Thread Maximum pees Engagement SL3 050 1 4 6mm to 20 in Ibs SLM3 020 1 2 12mm 2 2Nem 1 4 6mm to 12 12mm 40 in Ibs 4 5Nem 1 2 12mm to 5 16mm 200 in Ibs 22 5 800 in Ibs 90 SL3 002K SL3 003K SLM3 001K SL3 005K 5 16mm to
5. Perform this procedure while the vessel is still empty 1 Disconnect the Sig Sig wires for all Load Links 2 Turn all trim pots counter clockwise to the maximum excitation setting 3 Hang acalibrated test weight off of one Load Link as close to the Load Link support point as possible As a minimum use a test weight equal to 25 of the rated load for one Load Link The larger the test weight the more accurate the system CAUTION The test weight plus the dead weight supported by the Load Link must not exceed the Load Link s rated load 4 Using the DMM measure and record the voltage output across that Load Link s Sig and Sig leads 5 Remove the test weight 6 Repeat Steps 3 through 5 for each Load Link for this vessel Load Link Output with Test Weight mV Load Link 2 has the lowest output Do not adjust the trim for Load Link 2 Using the calibrated test weight adjust the trim for each of the other Load Links until they have output of 6 00 mV See Figure 3 13 Reviewing the recorded voltage outputs determine which Load Link has the lowest output Do not adjust the trim for this Load Link For each of the remaining Load Links A Hang the calibrated test weight off of the Load Link at the same position as in Step 3 B Using the DMM measure the voltage output across that Load Link s Sig and Sig leads while adjusting the corresponding trim pot Adjust the trim pot until the vo
6. Exc leads Verify the resistance is between 346 5 and 400 ohms Measure the resistance across the Sig and Sig leads Verify the resistance is between 346 5 and 353 5 ohms Measure resistance across the following e Sig and Exc leads 454 and Exc leads Verify these are within 1 ohm of each other 5 Measure resistance across the following Sig and Exc leads e 454 and Exc leads Verify these are within 1 ohm of each other 6 Repeat Steps 1 through 5 for each Load Link If any reading for any Load Link is outside the specifications described above contact K M for assis tance before proceeding with installation Method 2 Measuring Output 1 2 Place the Load Link on a stable surface Wire the Load Link to the signal processor but do not connect the Sig and Sig leads Apply power to the signal processor Using the DMM measure the voltage across the Load Link s Sig and Sig leads Verify the no load output is 0 1 of Rated Full Scale Output Assuming 10 V excitation 0 1 of Rated Full Scale Output is 040 3 mV Repeat Steps 1 through 4 for each Load Link If the reading for any Load Link is outside the specifications described above contact K M for assis tance before proceeding with installation Chapter 3 Hardware Installation Chapter 3 Hardware Installation Introduction This chapter describes installation and wiring of Load Link 1115 and junction boxes F
7. Non Conduited Installation Plastic Junction Box First Junction Box See Detail A for wiring Note Wiring between Load Links and Junction Boxes not shown for clarity To Next Junction Box or Signal Processor Conduited Installation Stainless Steel Junction Box TB1 Plastic Junction Box c c o 2 5 Sx 90 1 Red 2 2 om S 2 Sense Brown 2 3 Sense Blue 5895229252 4 Exc Black uo 6 CU E 5 Sig Green 6 Sig White 7 8 Shield Stainless Steel Junction Box Detail Wiring Connection Figure 3 11 Wiring Junction Boxes Together 3 6 Leveling Vessel multi point support installation Leveling the vessel distributes the weight evenly on all the Load Links increasing system accuracy Perform this procedure while the vessel is still empty 1 Check if Leveling Needed A Disconnect the Sig and Sig wires for all Load Links B Using the DMM measure and record the dead weight voltage output across one Load Link s Sig and Sig leads The output must be positive If you observe a negative output 1 Check the wiring Ensure the wires are connected to the correct terminals 2 If the wiring is correct and you still observe a negative output the vessel may be tilted Vessel tilting shifts the load onto some Load Links while putt
8. SQOM SNIVHO SIININGNNNAL S343 INILIN STINOVHS SY HONS 53 55300 INULYOddNS TIV 931519395 ISIMYIHLO SSIINN SALON ITINIYHS ANN Qva 4 135 NOLLVTWLSNI 1N33344I0 A HW3SSV 3T ongNanL 5 E EB ANT OVOT C5 Appendix Technical Drawings Appendix Technical Drawings SlivlL3d LO3NNOOHSINI ANIT PG 009 INIT AVOT uid XOG F INO ONISN NOLLYTIVISNI LINGNOD V NMOHS NIYHO 1358 9 135534 OL dandans SONI TVNOLJO HLM ANIT QYO1 LYOddNS 1YLNOZIBOH TISSA NPA NMOHS NIYHO TYNIIS OL 180445 TVINOZIHOH TASSA AL JWG Si NOLONM 5 5 5 NOLIN SNOISH3A LIMONOD NON S 61 SOMd GIIS SONINZdO CISNNN SAAL TW LV NO 38 LSM NOLONN L03NNOON3INI 8214 9 VIO 062 CHSS3A IHI 518 HO SIO3 HO ONAOM AB ONIDOYNS TYLNIQOOY SIUM OL 3OVMYO 01 HIHA 216 OL STAVI HOYLLV 580 38 CINOHS SIJLIYYd ONY 5
9. e If any reading is less than infinite short is indicated proceed to Step 5 to identify location e If no short is indicated proceed to next junction box in daisy chain Disconnect cable connecting it to other junction boxes and check resistances Repeat for each junction box down chain until short is located proceed to Step 5 5 Disconnect cable for one Load Link from identified junction box With one lead to earth ground place other lead ona wire from Load Link cable and check resistance Repeat for each wire in cable If any reading is less than infinite short is indicated Replace shorted Load Link e Ifno short is indicated disconnect another Load Link cable from junction box and check resistances Repeat for each Load Link wired to junction box until short is located Replace shorted Load Link Explanation Fluctuations can be caused by problems with signal processor Problem Likely to be Noticed Shortly after initial installation or on system that previously functioned correctly Solution Check signal processor excitation voltage and incoming AC voltage for accuracy and stability refer to signal processor manual Problem 2 Repeatable Drift over 24 hour Period Explanation Periodic drift is most likely caused by vessel thermal expansion due to the sun s radiation or a vessel s response to its own heating cycles Problem Likely to be Noticed Shortly after initial installation or
10. Plastic Junction Box 34 TBI EX S S EX S S SH Load Link Load Link Terminal Terminal Load Link Load Link Terminal Terminal Cable typical 4 places See Terminal Detail Below EX S S EX SH Red Shield Green Black White Terminal Detail Figure 3 8 Wiring Load Links to Plastic Junction Box Stainless Steel Junction Box 1 2 Open the junction box cover See Figure 3 9 Thread the Load Link cable through a fitting in the side of the box closest to the terminal you will be using for the Load Link Leave an ad equate length of cable between the Load Link and fitting to provide a drip loop Connect the wires from the Load Link to the terminal Perform Steps 2 and 3 for each Load Link you wire to this junction box up to four Tighten the choker fittings to seal the openings Close the junction box cover if not ready to begin wiring the junction boxes signal processor together to ensure no moisture enters the box Q cf mao iini UTE gg Pasa Link Terminal A Bop T Load Link Load Link Terminal m pees Terminal i 47 E 2222 EX DU
11. Span current live load 3 Add known quantity of material to the vessel Ensure all material has stopped moving before proceeding 4 Input Hi Span Hi Span Lo Span Added Weight Example You are using three 5 000 Ib capacity Load Links to monitor a vessel The vessel is empty contains 0 Ibs of material The vessel can hold a maximum of 10 000 Ibs You plan to add 3 000 Ibs of material gt 25 of 10 000 105 to the vessel Following the Live Load calibration procedure Current live load 0 Ibs Lo Span current live load 0 Ibs Add 3 000 Ibs of material Hi Span Lo Span Added Weight 0 lbs 3 000 Ibs 3 000 Ibs Baron Note Hi Span and Lo Span establish the slope and location of the calibration line Weight Signal Counts Figure 4 1 Live Load Calibration by Adding or Removing a Known Quantity of Material Chapter 4 System Calibration Removing Material See 1 Record the current live load 2 Input Hi Span Hi Span current live load 3 Remove known quantity of material from the vessel Ensure all material has stopped moving before proceeding Input Lo Span Lo Span Hi Span Removed Weight gt Example You are using three 5 000 Ib capacity Load Links to monitor a vessel The vessel currently contains 4 000 Ibs of material The vessel can hold a maximum of 10 000 Ibs You plan to remove 3 000 Ibs of material 22596 of 10 000 Ibs from the vessel Following the Live Load calibrati
12. cover 2 See Figure 3 7 Place a plastic washer on the watertight fitting Thread the Load Link cable through a cap and watertight fitting Leave an adequate length of cable between the Load Link and fitting to provide a drip loop 3 Spread a generous bead of sealant around the watertight fitting s threads CAUTION Only use Sikaflex 1A polyurethane sealant or Dow Corning RTV 739 or RTV 738 Other sealants may contain acetic acid which is harmful to sensors and electronics 4 Inthe bottom of the junction box locate one of the four small holes closest to the terminal you will be using for that Load Link Screw the fitting into the hole 5 See Figure 3 8 Connect the Load Link wires to a terminal TB2 TB3 TB4 or TB5 6 Tighten the fitting cap to seal the openings 7 Perform Steps 2 through 6 for each Load Link you wire to this junction box up to four 8 Spread a generous bead of sealant Sikaflex 1A polyurethane sealant or Dow Corning RTV 739 or RTV 738 around the threads of the plug for each small hole in the junction box not being used Screw a plug into each small hole 9 Replace the junction box cover and screws if not ready to begin wiring the junction boxes signal processor together to ensure no moisture enters the box Small Hole N Sealant Watertight Fitting amp Cap lt Plastic Washer Load Link Cable Figure 3 7 Inserting Load Link Cable through Watertight Fitting
13. on system that functioned correctly in cool or overcast weather Solution 1 If periodic drift is outside specifications Appendix A contact K M 2 Ifkeeping long term records take readings at same time each day to minimize error Problem 3 Sudden Change in Display Reading or Frequent Recalibration Required Explanation A single broken Load Link can cause indi cated weight to shift up or down by a large amount up to 10090 of full scale live load Problem Likely to be Noticed On system that previously functioned correctly Solution Using a DMM check voltage output for individual Load Links 1 Remove one Load Link s Sig and Sig wires from junction box terminal 2 Measure voltage across Load Link s Sig and Sig leads Verify output is within 30 mV Assuming 10 V excitation 3 Repeat Steps 1 and 2 for each suspect Load Link If any reading is outside specified range Load Link may be damaged check Load Link resistance to verify see Problem 1 Explanation Change in weight reading can be caused by material buildup on Load Link s horizontal surfaces Problem Likely to be Noticed On system that previously functioned correctly Solution Remove material from Load Link s horizontal surfaces Explanation Sudden change in weight reading can be caused by problems with signal processor Problem Likely to be Noticed Shortly after initial installation or on system that prev
14. on the transducer Manual Conventions Three kinds of special explanations appear throughout the manual WARNING CAUTION and Note The format and signifi cance of each is defined below WARNING Possible danger to people Injury may result if this information is ignored CAUTION Possible risk to the product The Load Link other equipment may be damaged if this information is ignored Note Contains additional information about a step or feature critical to the installation or operation of the Load Link III Chapter 1 Introduction Chapter 2 Pre Check Procedures Chapter 2 Pre Check Procedures Introduction This chapter describes the pre check procedures for the Load Link III Verifying the application and checking the Load Links before installation will ensure installation of properly working equipment that will provide accurate monitoring of vessel contents Application Verification Prior to ordering the Load Links you should have completed the Application Data Form KM 97 5016A A copy of the completed form was returned to you with both the order acknowledg ment and equipment shipment If you cannot locate the form contact K M to get another copy before you proceed Review the information on the form now to verify the application details Order Verification Prior to beginning installation verify that your order is complete and assemble a
15. 1000 in Ibs SLM3 002K 3 4 19mm 113N m Table 8 1 Thread Engagement and Torque 1 2 12mm to 5 8 16mm 4 e o Safety Cable Figure 3 4 Installation Example See Figure 3 4 Install a safety cable connecting it above and below the Load Link assembly Leave enough slack in the cable to allow free movement of the Load Link For three and four point installations A Repeat Steps 3 and 4 to install the remaining Load Links B Complete installation by installing field wiring and leveling the vessel as de scribed below After leveling vessel install safety wires on any screw connections shackles etc to prevent the hardware from coming loose For single point installations Install safety wires on any screw connections shackles etc to prevent the hardware from coming loose Mounting Junction Box Note 1 2 Mounting hardware for the junction box is not supplied by K M K M recommends Plastic box 88 32 socket head cap screws and flat washers Stainless steel box 4 20 stainless steel hex head bolt and nut 1 4 stainless steel washer and lock washer The instructions below reflect these recommendations Plastic junction box Remove the cover See Figure 3 5 or 3 6 as applicable Hold the junction box at the desired mounting location ensuring it is close enough to the Load Link s to allow a drip loop in the Load Link cable Mark the moun
16. 1A polyurethane sealant or Dow Corning RTV 739 or RTV 738 Tape electrical or masking Consult K M for lengths over 200 61m Junction Box Hardware and Tools Plastic Junction Box 29 drill bit 8 32 2 flute spiral point tap 8 32 socket head cap screws 8 flat washers 16 inner diameter he outer diameter 9 64 Allen wrench Stainless Steel Junction Box 7 drill bit 14 20 2 flute spiral point tap 14 20 stainless steel hex head bolt and nut stainless steel flat washers and lock washer 1 4 Allen wrench Chapter 2 Pre Check Procedures CAUTION Only use Sikaflex 1A polyurethane sealant or Dow Corning RTV 739 or RTV 738 Other sealants may contain acetic acid which is harmful to sensors and electronics Checking Equipment Visual Check Visually inspect all equipment in the order including Load Links junction boxes and signal processors to verify they have not been damaged during shipment If any item has been damaged contact K M for a replacement Functional Check Perform a functional check of all the Load Links before installation to verify they have not been damaged during shipment Select one of the functional check methods described below Method 1 Measuring Resistance 1 Place the Load Link on a stable surface Disconnect the Load Link from the signal processor if previously wired Using the DMM measure the resistance across the Load Link s Exc and
17. 3000 WNULITB AINO SONVISISSY 10 1 TYN3N39 SI ONIMYYO SIHL Saho seann SIVAObddY 7TIVL3Q NOILOANNOD 881 nu 281 4001 TEVI NIONGSNVUL 1333 070 Q38 38d sv XO8 MIHLO NMOHS NIYHO SAVHA I3SSNO TISS3A 01 05 SONJ 008 VNOLLdO HLA MIINOSNYUL Il INT 01 3oN38313M NMOHS NIVHO WY38 1509975 W1LNOZRIOH TJSS3A OL LON SONLLLIS esj N 29nS 14 Ag ATHW3SSY NOUONIY CALON 3SIMMIHLO SSIINN MINOLSNO AB 5 SLAVA TIY zh 03410345 3SWenHLO SSZINN SALON WY38 LYOddNS IVINOZIHOH T3SS3A INO NISN WvHOVId IOANNOOUSLNI 391108 SEBONGSNYAL MNN avon 9 dn sv 05832084 TVNOIS OL NIA Gariddns XO8 4007 TIGYO WONGSNVEL we 1334 0 03HM 3td ANIT G O1 MOI C 7 Appendix Technical Drawings Appendix Technical Drawings OBL dalvloy SHJBMDN Nid 550018 01 Z 1 ALON NMOHS v 21 1 30018 IVNIWH3L NOILSANNOS INdINO LndinO 53534030 104100 SISY3YONI 35Wo0710
18. 40345 3SMUGHLO SSIINN SY 5 IBILI TIVLSNI 538 10018 5 HIHLO OL ILHOM TISSIA ININUIISNYAL NO 8 4405 AG 5 LNIWINNSYIN 3SNVO AVA 13 SYIGOVI SNOLLIINNOO SALNHO 2510 TAAN SI T3SS3A TUNA 51804405 NO NOISN3L ISNMOY SY SNIMOLINOM GAR 804 NOLVOION WAN NEANG v ISN AINO SINOdANS NO Z 59 NO ill ANA QVOT INO AINO SNITIVISNI N3HM WOMJ 5531 MO AW G I SI SINALNO 5 ill ANIT N33ML38 3 3440 ONIGVSY OS NOISNAL 3HL LSNray TI3SS3A 5 11 INT INO SNOW ONITIVISNI 0 SLUOddNS TISSIA 30 1110 3HL OL INOI 38 CINCHS SLMOddNS 5 30 YIBANN JHL 55110538 1538 304 CGLNGIMLSIO St LNALNOD 511 MO SI TJSS3A JHL JYNS JAYA ONINJSOO NOLA SONI GOX SIATIO NIINOSNYAL QvO1 SLNN 5 SaTxONENANL IN3A3Hd OL SNY3A JIGVLINS NIHLO WO 310201 SYM ALi4YS 3501 SNOUWIMVA LHOI3H L3SSND T3SS3A 304 31VSN3dWOO OL S3149ngNHhL SLON IHL ONISN SUZINOSNYWI il QvOT NO NOISN3L 3HL 15NMOY WLAG 834 H3HLO HOY3 WOUJ IVNOOVIG LON 6135509 18044115 TISSIA 1 NO TIWISNI U3Sn SLYOdANS 318YlSff QY SYIINOSNYAUL Ill ANTI JO NOUYNIBMOO Y Ji
19. 9 Load Link 111 Installation Manual CAUTION It is essential that all instructions in this manual be followed precisely to ensure proper operation of the equipment 97 1132 01 Rev May 2000 The content of this document is the intellectual property of Kistler Morse Corporation Any reproduction or translation of this document without the written authorization of a Kistler Morse corporate officer is prohibited CAUTION Follow these rules if welding is done on the vessel after installation of the Load Link Ill The electrical current of the welder may pass through the Load Link causing damage to the transducer and possibly to the signal processor To avoid damage follow these precautions 1 Disconnect the Load Link cables from the signal processor 2 Ground the welder as close to the welding joint as possible The welding ground must be between the Load Link and the weld joint to prevent the welding current from going through the Load Link to earth ground Note High temperatures can damage the Load Link If you are welding in the vicinity of a Load Link monitor the temperature of the metal adjacent to the Load Link If it becomes too hot to touch stop welding immediately and remove the Load Link before continuing Prior to reinstalling the Load Link verify that no damage has occurred by checking the resistance Load Link and SVS 2000 are trademarks of Kistler Morse Corporation All other trademarks are t
20. DNIHDI3M ONIUNG ONISNIMS MOMI T3SS3A LN3A3Nd 01 SY SOON ISN 01 Q3rlddv WONHJ LN3AJUd 01 Sv 51404405 5 NO STSAMS TIVLSNI 1538 JHL HOS ATIVOLLEGA 9NYH 5 51804405 SYIINGSNY2L li INT OYOT IHL SY 583 34415 ONY S320YH8 TIVISNI SuOMH3 5 ISNYI HOIHM LAIKS AYW SOYOT CHSS3A 15 4 XILI SMY38 LYOddNS 135500 T3SS3A JHL dl ALIOYdYO SLI SIWU S SI ALIHO3LNE HOSN3S NOLLYTIWLSNI 9 Hl ANIT QVO1 NO T3SS3A JHL JO 1H9 34 TVLOL 9NYH LON 00 S330nOSNYuL G3LVI3N39 SQVYOT XO0HS 3AISS3OX3 3HL SY 5 5 11 WNT QvOT 3HL OL GaHOWLLY SI LI N3HM T3SS3A LON 00 SH3OnSNYMI SNITIYISNI 380438 T3SS3A ALdAS TISSIA INLWOddNS ONY ONILJT N3HM 5 AL3iVS N3dOMd 3S ONY SL33HS 20 33S SNOLLS3O9fIS INOAYI ONY ONIN 303 GALON 3SMUIHLO SSIINN MIWOLSNI G3riddnis SldYd TIY mwowaw ole sv NGYI 81404406 009 8 RIVHO INAY 303 NMOHS NOWYTWISNI 13559 NMOHS NOLLVTIVISN 135502 C7 J 0 b M3ODOSNVAL H ANN OYOT NMOHS
21. NOLYTIVASNI 135519 SY AMS 5 M ANIT IYOT N 38038 SY ALAIS Rm dariddns 28 QvO1 saovid 532816 131343 QN3 004 ONY SKIN 6 S30V1d LAN X901 JAYI 01 GCIM T3NNYHO 4 VEE 01 030734 T3NNVHO SIM S39V1d WiHSV A C3N3QUVH C3N3QUYH 3NY8J Qi Q3OT3A TINNYHO 530614 Z LAN ONITIA3I 539814 2 LNN INTAN 1904405 ONY LON a l8vlenrav HLIM ONILNNOW ANIT OVO 13883A 9 18084405 18045 NEVISO dal TSSA SALLY SIA3ITO W ALIY 3ONYuv319 5270 ONUSMU 1 OL Wv38 OL Su3N343LS TTM Nid M3LLO9 ONY Nid SATO HLW 55 SATIO TVNOILAO QN3 AYIB LUOddNS C3 Appendix Technical Drawings C4 Appendix Technical Drawings ALIOVdVO YOSN3IS ALIIVdVI YOSN3IS HSITON3 5 38 ST3AMMS 5 35 JHL 39YWYO YO SUOUNI ONIHIOM ISNYI TIM ONLSIAL HO ONIGN38 OL 3284 38 LSAW SANJ ATION NOSN3S JO 3 WOHINY 10N OQ YALLIG NO YOSNIS FHL SY ALIOVdYO JHL 3AYH GINOHS 013 5 18 9
22. Solution Reduce drift or oscillation by setting count by and averaging appropriately on the signal processor refer to signal processor manual Explanation Fluctuations can be caused by mechanical binding in supports Binding may have resulted from hanging equipment on vessel after initial Load Link installation Problem Likely to be Noticed Shortly after initial installation or on system that previously functioned correctly Solution Check for binding in eye nuts shackles etc If necessary re level vessel refer to Leveling Vessel in Chapter 3j Hardware Installation Explanation Fluctuations can be caused by moisture in cable conduit junction boxes or PCBs Problem Likely to be Noticed On system that previously functioned correctly Solution Check conduit junction boxes and PCBs for water contamination Find water entry source and correct problem Dry witha hair drier Remove replace corroded parts and materials CAUTION If using sealant to eliminate water entry use Sikaflex 1A polyurethane sealant or Dow Corning RTV 739 or RTV 738 Other sealants may contain acetic acid which is harmful to sensors and electronics Explanation Fluctuations can be caused by a damaged Load Link Problem Likely to be Noticed Shortly after initial installation or on system that previously functioned correctly Solution Using a DMM check resistance for individual Load Links 1 Remove one Load L
23. ation B 2 Address and Telephone Numbers B 2 Appendix C Technical Drawings C 1 Table of Contents Chapter 1 Introduction Chapter 1 Introduction Figure 1 1 K M Load Link III Equipment Description The Load Link III Figure 1 1 is a highly sensitive direct support strain gage load cell used to determine the weight of material contained in storage vessels One or more Load Link Ills mount on structural supports and the vessel is suspended from them As weight is added to or removed from the vessel each Load Link experiences strain changes proportional to the changes in weight and produces a voltage output proportional to those changes A signal processor then converts this output to a weight value for display and control Load Link III capacities range from 50 Ibs to 5 000 105 22 to 2268kg Refer to for Load Link III specifications Because the Load Link mounts outside the vessel it never comes in contact with the material inside the vessel The Load Link Ill is rugged can operate in industrial environ ments and requires no periodic maintenance Used in many different industries the Load Link can weigh any type of material The Load Link Ill is available with optional installation hardware designed to ease installation and minimize side loading and twisting forces
24. dditional equipment needed for the installation Load Link Order The following are included with the order for each vessel quantities dependent on application Load Link III Junction Box plastic or stainless steel Plastic Junction 63 1282 terminal board Watertight fittings 4 Watertight plugs for any cable openings that will not be used Sikaflex 1A polyurethane sealant and Material Safety Data Sheet MSDS Stainless Steel Summing Junction Box with fittings and trimming terminal board If any items are missing from the order contact K M before proceeding Substituting parts without K M approval may cause system problems and will void the warranty Note A signal processor and its manual are required to calibrate the system These may be part of your order or you may be planning to use the Load Links with an existing signal processor Installation Equipment The following are needed to install Load Links Lifting equipment Tape measure Marking pen Drill motor Wrenches Mounting hardware Safety cable Digital Multimeter DMM 41 2 digit recommended Junction Box and Field Wiring Equipment The following are needed to install junction boxes and perform field wiring Drill motor Tap handle Tapping fluid Screwdriver Belden 83556 22 gage 6 conductor shielded interconnect cable or equivalent up to 200 61m length Conduit and fittings or cable tray Caulking gun Sikaflex
25. e Manual calibration procedure 1 Counts mV 13421 from signal processor 2 Rated load for one Load Link is 5 000 Ibs 3 From the three calibration certificates 5 3 003 S 3 001 S 2 998 S average 3 003 3 001 2 998 3 3 001 mV V Excitation Voltage 10 V Current live load 0 Ibs Calculate the values for the calibration Scale Factor Weight Rated Load x Number of Supports 5 000 Ibs x 3 15 000 Ibs Scale Factor Counts S x Excitation Voltage x Counts mV 3 001 mV V x 10 V x 13421 cnts mV 402 764 Counts Zero Cal current live load 0 Ibs our Note Scale Factor Counts and Scale Factor Weight establish the slope of the Manual calibration line Zero_Cal establishes the location of the line Scale Factor Weight Scale Factor Weight Slopes Gm Scale Factor Counts Weight Signal in Counts Figure 4 2 Manual Calibration Line Chapter 5 Troubleshooting Chapter 5 Troubleshooting This chapter describes some common problems For each problem one or more possible explanations are listed For each explanation an indication of when the problem is likely to be noticed and suggested solutions are provided Problem 1 Small Amplitude Changes or Erratic Fluctuations in Display Readings Explanation Small amplitude drift or oscillation with peak to peak disturbance of 0 1 to 0 3 of full scale is normal Problem Likely to be Noticed Shortly after initial installation
26. ensions Appendix Kistler Morse Service Appendix Kistler Morse Service Product Warranty Acomplete unabridged copy of our product warranty is available upon request from Kistler Morse A summary of the warranty subject to the terms and conditions listed fully in the warranty follows K M warrants the equipment to be free from defects in material and workmanship for one year from date of shipment to original user K M will replace or repair at our option any part found to be defective Buyer must return any part claimed defective to K M transportation prepaid Service K M maintains a fully trained staff of field service personnel who are capable of provid ing you with complete product assistance Our field service staff is based in Bothell Washington USA corporate headquarters and Antwerp Belgium European office Phone Consultation Our Field Service staff provides the following services by telephone via our regular and toll free number toll free in USA and Canada only Technical application and troubleshooting assistance e Spare parts assistance Warranty replacement assistance On Site Consultation 5 Field Service staff can provide addi tional services at your request Contact K M at the closest office for rate and scheduling information for the following services e Technical application startup and troubleshooting assistance on site Trainin
27. g on site or at our corporate office Service calls Equipment updates to our latest configuration General descriptions of some of these standard services follow Of course if your service needs vary from those described we are available to discuss them with you Installation Startup Assistance and On Site Training Note Load Link installation field wiring conduit installation and junction box and signal processor mounting must be performed by the customer The AC power must be connected to the signal processor but not energized prior to K M beginning work The system will be powered up and checked for proper electrical operation For best results K M requires moving a known amount of material such as a truckload for Live Load calibration Live Load calibration will be performed if actual material or weight devices can be moved If itis not possible to move material a Manual calibration will be per formed Recommendations for the optimal performance of the system will be provided On site training will include simulation of the Live Load calibration process if Live Load calibration can not be performed while K M is on site and instruction covering operation and maintenance of the system Appendix Kistler Morse Service Troubleshooting K M will troubleshoot systems for mechanical electrical calibration and wiring errors Normal component repairs will be made and wiring errors will be corrected i
28. he property of their respective owners Table of Contents Table of Contents Chapter 1 Introduction 1 1 Equipment Description aa ANG ANG AA AGARANG 1 1 Manual 5 Mem ie 1 1 Chapter 2 Pre Check Procedures 2 1 pM HEIDE 2 1 ApplicatioriVerlfiCatiOni e iioi E Rr dte rece Ip ve pei ente 2 1 o Canine 2 1 Order tian atte Ain 2 1 Installation Equipment 2 1 Junction Box and Field Wiring Equipment 2 1 Checking Equipment 2 2 Visual Gheckzus Naka pie tte E naan 2 2 Functional CHECK 422 o utes 22225222 tec lied tese meer at or dete 2 2 Chapter 3 Hardware Installation 3 1 giaa el e tentat Eee Ea Ed t a ee es 3 1 Vessel Preparation e e cela 3 1 installing Load LINKS posit ead i e eet 3 1 Installation uence caer RI ERE ee een Pag eaten 3 1 Installation Procedure eeu eee ee eei t eee 3 2 Mounting
29. ing other Load Link s in a no load or compression load condition This can occur in cases of unequal support length unequal support beam stiff ness or extreme thermal deformation Proceed to Step 2 to level the vessel C Repeat Step B for each Load Link D Calculate the output range Output Range largest output smallest output The output range must be less than 5 of rated output For a system with 10 V excitation the output range must be less than 1 5 mV 3 0 mV V x 10 V x 0 05 1 5 mV In the example in Figure 3 12 Load Links 1 2 and 4 meet this requirement while Load Link 3 does not Load Link Dead Weight Output mV 121102 2 4600 Maximum allowable output range 1 5 mV for 10 excitation Chapter 3 Hardware Installation E Ifthe installation meets the criteria described above each output is positive and output range is less than 1 5 mV the vesselis sufficiently level e If sufficiently level proceed to Step 3 If not sufficiently level proceed to Step 2 to level the vessel 2 Level Vessel A Loosen the connections between the Load Links and the vessel B Usethe turnbuckle or adjust the cable chain rod length as required to adjust the weight distribution on the Load Links Shortening the support length increases the weight on the Load Link Lengthening the support length decreases the weight on the Load Link Note Adjusting support length on one L
30. ink s wires from junction box terminal 2 Measure Load Link resistances and verify they meet these requirements Leads Sig and Sig 346 5 353 5 ohms Sig and Exc Within 1 ohm 5 and Exc of each other Sig and Exc of each other If any reading is outside specifications Load Link is damaged and must be replaced 3 RepeatStep 2 for each suspect Load Link until damaged Load Link is located Chapter 5 Troubleshooting Explanation Fluctuations can be caused by a short to ground Problem Likely to be Noticed Shortly after initial installation or on system that previously functioned correctly Solution Using a DMM check for shorts to ground 1 Set DMM resistance scale to accommo date maximum measured range 2 Disconnect junction box cable from signal processor 3 With one lead to earth ground place other lead on a wire from disconnected cable and check resistance Repeat for each wire in cable e lf any reading is less than infinite i e there is resistance short is indicated proceed to Step 4 to identify location Ifno short is indicated investigate other explanations for problem 4 Starting with junction box closest to signal processor in daisy chain discon nect cable that connects junction box to other junction boxes With one lead to earth ground place other lead on a wire from disconnected cable and check resistance Repeat for each wire in cable
31. iously functioned correctly Solution Check signal processor excitation voltage and incoming AC voltage for accuracy and stability refer to signal processor manual Chapter 5 Troubleshooting Chapter 5 Troubleshooting 5 4 Appendix A Product Specifications Appendix A Product Specifications Overload Rating Functional Integrity 150 of Rated Capacity Mechanical Integrity 400 of Rated Capacity Input Excitation Voltage Recommended 10 VDC Maximum 15 VDC Input Resistance 350 50 3 5 Ohms Output Non linearity 0 05 of Rated Output Hysteresis 0 03 of Rated Output Non repeatability 0 02 of Rated Output Creep after 20 minutes 0 03 of Rated Output determined at rated capacity performance at reduced loads proportional to applied load Nominal Output 3 mV V 0 1 Zero Balance 1 of Rated Output Output Resistance 350 3 5 Ohms Environmental Operating Temperature Range 65 to 200 F 55 to 90 C Compensated Temperature Range 0 to 150 F 15 to 65 Temperature Effect on Rated Output 0 08 Reading 100 F 55 6 C Temperature Effect on Zero 0 15 of Reading 100 F 55 6 C Materials SL3 050 through SL3 001K and SLM3 020 through SLM3 500 Anodized aluminum SL3 002K through SL3 005K and SLM3 001K through SLM3 002K Electroless nickel plated steel Insulation Resistance Bridge to Case gt 5000 Megohms Electrical Connections SL3 050 through SL3 250 and SLM3 020 th
32. ltage output matches the lowest output from Step 7 C Remove the test weight D Repeat Steps A through C for each of the remaining Load Links Reconnect the Sig and Sig wires for all Load Links to the junction box terminals Figure 3 13 Example Recording and Analysis of Output for Trimming Chapter 4 System Calibration Chapter 4 System Calibration Introduction This chapter describes general procedures for calibrating the Load Link Ill system Before calibrating you must install a signal processor Refer to the signal processor manual for the procedures to input calibration parameters There are two calibration methods Live Load calibration set lo span and hi span while moving material into or out of the vessel This is the preferred method e Manual calibration set scale factor counts scale factor weight and zero calibration value without moving material Live Load calibration requires you to move a known quantity of material into or out of the vessel while performing the procedure The quantity of material moved must be at least 25 of the vessel s total capacity to provide best accuracy Live Load calibration is also based on the material weight currently in the vessel Manual calibration allows you to start using the System as soon as Load Links junction boxes and signal processor are installed and wired even if you cannot move any or enough material now Manual calibration val
33. n boxes together and to the signal processor use Belden 83556 22 gage 6 conductor shielded interconnect cable or equivalent For lengths over 200 61m length consult K M 5 When wiring cable to terminals strip back 3 76mm of cable sheathing to expose the wires inside Strip 1 4 6mm of insulation from the end of each of the conductor wires 6 All wiring routed between junction boxes and signal processor must be continuous no splices 1 Remove open the junction box cover Conduited installation Install conduit fitting in the bottom of the junction box Non conduited installation See Figure 3 10 Spread a generous bead of sealant around the sides of the PG13 5 cable fittings Install the fittings in the two large holes in the bottom of the junction box CAUTION Only use Sikaflex 1A polyurethane sealant or Dow Corning RTV 739 or RTV 738 Other sealants may contain acetic acid which is harmful to sensors and electronics Large Hole typical Sealant Note After cable is PG13 5 Fitting 4 connected to terminals tighten cap until cable amp glands in fitting seal around cable Cable Figure 3 10 Inserting Interconnect Cable through PG13 5 Fitting and Cap Chapter 3 Hardware Installation 2 See Figure 3 11 Route the cable through Repeat Steps 3 and 4 until all junction the fitting in
34. ncluding replacement of non repairable printed circuit boards Service Calls K M will perform on site repair replacement services Return Material Authorization If a part needs to be sent to the factory for repair contact K M s corporate office and request a Return Material Authorization RMA number The RMA number identifies the part and the owner and must be included with the part when it is shipped to the factory Address and Telephone Numbers Corporate Office Kistler Morse Corporation 19021 120th Avenue NE Bothell WA 98011 9511 Telephone 425 486 6600 Toll Free U S A and Canada 800 426 9010 Fax 425 402 1500 www kistler morse com European Office Kistler Morse Corporation Rucaplein 531 B 2610 Antwerp Belgium Telephone 32 3 218 99 99 Fax 32 3 230 78 76 Appendix Technical Drawings Appendix C Technical Drawings This appendix contains the following technical drawings for the Load Link III Drawing No Drawing Title I LC SCELL 01 Load Link III Transducer Installation Details and General Layout I LC SCELL 02 Load Link 111 Transducer Interconnect Details Appendix Technical Drawings Appendix Technical Drawings 4 1VH3N30 1iV13O0 NOILVTIVLSNI ANIT avol SIN3N3ONVHHV ONILNNOW IV ldAL V Tiviad 11086 VM 909 AV SMOBING siya 411
35. oad Link affects the weight distribution on all the Load Links C Re tighten the connections between the Load Links and the vessel D RepeatStep 1 rechecking the voltage output of all the Load Links and recalculating the Output Range largest output smallest output E RepeatSteps 2A through 2D until the installation meets the criteria for weight distribution 3 Complete Installation A Reconnect the Sig and Sig wires for all Load Links to the junction box terminals B Install safety wires on any screw connections shackles etc to prevent the hardware from coming loose Actual output range 4 Output 3 Output 6 15 mV 3 30 mV 2 85 mV All Load Links meet the requirement that all output changes must be positive Load Links 1 2 and 4 meet the requirement that the output be within a 1 5 mV range Load Link 3 does not meet the requirement and its small output indicates it is carrying much less weight than the other Load Links The vessel must be leveled to distribute the weight more evenly over all the Load Links Figure 3 12 Example Recording and Analysis of Output for Level Check Chapter 3 Hardware Installation Trimming Output multi point support installation Trimming equalizes the output from all Load Links supporting the vessel Trimming is necessary if a high accuracy weighing system is required Note that only the stainless steel summing junction box has trimming capability
36. ollow all instructions carefully to ensure proper operation of the system Vessel Preparation There are two aspects to successful use of Load Links properly functioning Load Links and appropriate vessel support characteristics Review the following list of error sources and make the recommended corrections before you install the Load Links Hidden load bearing structures such as discharge chutes or plumbing supported by the floor can reduce loads on the vessel supports Install flexible couplings to minimize this problem Cross connecting structures such as catwalks and manifolds can transfer loads from adjacent vessels Install slip joint or flex couplings to minimize this problem Shock loads can damage the Load Link Install protective barriers or stops to prevent vehicles from hitting the vessel For three and four point support installations Support beams must be of equal size and or stiffness If one beam deflects more than the other s it may transfer excessive weight to the other Load Links possibly overloading them Installing Load Links Installation Type There are three installation types See Figure 3 1 Single point supports are often used for vessels containing liquids Bumpers check rods or cables are required to limit accidental side motion Ensure the bumpers check rods or cables do not cause friction and do not restrain vertical movement of the vessel Use r
37. on procedure Current live load 4 000 Ibs Hi Span current live load 4 000 165 Remove 3 000 Ibs of material Lo Span Hi Span Removed Weight 4 000 Ibs 3 000 Ibs 1 000 Ibs Manual Calibration Note K M s SVS 2000 signal processor performs a manual calibration automatically with Quick Config See Figure 4 2 1 Refer to the signal processor manual to determine how to obtain the A D converter sensitivity expressed in Counts mV Record this value Record the Rated Load for one Load Link From the calibration certificate that came with each Load Link record the Load Link sensitivity S for each Load Link The sensitivity has units of mV V Calculate and record the average sensitiv ity if the system has multiple Load Links Indicated Weight live load Zero_Cal Counts Scale Factor 4 Record the excitation voltage for the system typically 10 V Record the current live load in the vessel Calculate the Manual calibration values Scale Factor Weight Rated Load Ibs or kg x Number of Supports Scale Factor Counts S mV V x Excitation Voltage V x Counts mV Zero_Cal current live load lbs or kg 7 Refer to the signal processor manual to input Scale Factor Weight Scale Factor Counts and Zero_ Cal nm Example You are using three 5 000 Ib capacity Load Links to monitor a vessel The vessel is empty contains O Ibs of material Following th
38. otational restraints to prevent the vessel from rotating and unscrewing hardware Do not use single point supports for vessels containing solids because off center loading may occur Off center loading shifts the center of gravity and causes the vessel to contact the bumpers resulting in erroneous readings Ha pE JH cc e Bumper Plan View Safety 7 Support Beam Cable Note Installation details not shown See Figure 3 4 TI LC Scell 01 in Appendix C for details Elevation View Figure 3 1 Single Point Support Installation Chapter 3 Hardware Installation e See Figure 3 2 Three point support installation distributes vessel weight on three Load Links Use turnbuckles to control the support length ensuring each Load Link carries a proportional share of weight Support Beams See Plan View Support Beam Load Link Ill Safety Cable Note Installation details not shown See Figure 3 4 and TI LC Scell 01 in Appendix C for details Elevation View Figure 3 2 Three Point Support Installation e See Figure 3 3 Four point support installation distributes vessel weight on four Load Links Use turnbuckles to control the support length ensuring each Load Link carries a proportional share of weight LN E Support Beams Plan View Support Beam Note Installation NG Load details not shown Link III See Figure 3 4 and TI LC Scell 01 in Appendix C for details
39. rough SLM3 100 Standard 4 connector shielded cable AWG28 10 ft 3m long Option length up to 100 ft 30m 513 500 through SL3 005K and SLM3 200 through SLM3 002K Standard 4 connector shielded rugged cable PVC Jacket AWG22 10 ft 3m long Option length up to 100 ft 30m Cable all models Red Exc Color Function i Wht Sig FHed Excitation Shield Capacities and Dimensions ee Table 1 A 1 Appendix Product Specifications Capacity Dimensions Rated 513 050 50 105 212 2in ein 1 4 28 UNF 2B 22kg 64mm 51mm 22mm 1 4 deep top and bottom SL3 100 21 2 in 2 in 3 4 in 1 4 28 UNF 2B SL3 250 250 lbs 64mm 51mm 19mm 1 4 deep top and bottom 113kg SL3 500 500 Ibs 227kg SL3 750 750 Ibs 340kg SL3 001K 1000 Ibs 2in 1 4in 12 20 UNF 2B 454kg 76mm 51mm 32mm 1 2 deep top and bottom SL3 002K 2000 Ibs 907kg SL3 003K 3000 Ibs 1361kg SL3 005K 5000 Ibs 5 8 18 UNF 2B 2268kg 89mm 64mm 44mm 5 8 deep top and bottom aa am SLM3 020 20kg 64mm 51mm 22mm M6x1 6H top and bottom 50kg SLM3 200 SLM3 500 76mm 51mm 32mm M12x1 75 6H top and bottom SLM3 001K 1000kg SLM3 002K 2000kg M16x2 6H top and bottom Note Install the Load Link with the Kistler Morse label right side up Table 1 Load Link III Capacities and Dim
40. ting holes Chapter 3 Hardware Installation Center Mounting Holes for Curved Surfaces 2 places Outside Mounting Holes for Flat Surfaces 4 places Figure 3 5 Plastic non trimming Junction Box Mounting Mounting Holes 4 places Figure 3 6 Stainless Steel trimming Junction Box Mounting Drill and tap the mounting holes Plastic Box 29 drill bit 8 32 tap Stainless Steel Box 7 drill bit 4 20 tap Mount the junction box with recom mended hardware Tighten until snug Plastic junction box Replace the junction box cover if not ready to begin wiring to ensure no moisture enters the junction box B e Wiring Load Links to Junction Box The junction box accommodates up to four Load Links from one vessel However multiple junction boxes may be required for multi point installations if all the Load Link cables cannot reach one box The two types of junction boxes are described below Plastic junction box non trimming The four small holes in the bottom are for wiring Load Links to the junction box Stainless steel summing junction box trimming This is used for highest accuracy applications where trimming is required The four holes in the sides are for wiring Load Links to the junction box Chapter 3 Hardware Installation Procedures are provided below for wiring both types of junction box Plastic Junction Box 1 Remove the junction box
41. to the junction box farthest boxes for the vessel are wired together from the signal processor Connect wires Route the cable from the last junction from the cable to the output terminal TB1 box through conduit cable tray to the in plastic junction box Indicator in signal processor Refer to the signal stainless steel junction box processor manual for wiring the junction 3 Route the cable through conduit cable box to the signal processor One vessel tray to the next junction box Estimate the takes up one channel in the signal required length of cable to the terminal processor the channel shows the strip allowing a little extra for strain relief average value from all the Load Links Cut the excess cable Connect wires from supporting the vessel the cable to the output terminal Note 4 Route another cable through the fitting l A into this junction box and attach wires to Ground the cable shield only at the the output terminal signal processor First Junction Boxy See Detail A for wiring Note Wiring between Load Links and Junction Boxes not shown for clarity To Next Junction Box or Signal Conduited Installation Plastic Junction Box DET _ First See Detail A for wiring Junction Box m N Note Wiring between Load Links and Interconnect Cable typical Junction Boxes not shown for clarity Cable Tray To Next Junction Box or Signal Processor From First Junction Box
42. ues are based on system parameters including sensor sensitivity rated load and signal processor A D converter sensitivity These values are known can be calculated or can be obtained from the signal processor Manual calibration is also based on the material weight currently in the vessel Note that manual calibration does not take into account the actual response to changes in weight Theoretically a change in weight results in a proportional change in digital counts However the structure s actual Indicated Weight Hi Span Added or Removed Known Quantity Lo Span response to weight and interaction with piping catwalks roof discharge chutes etc prevents the system from achieving theoreti cal values Manual calibration is a good start but to obtain the highest accuracy perform a Live Load calibration when scheduling permits you to move material into or out of the vessel The following sections provide procedures for performing Live Load and Manual calibrations Live Load Calibration Live Load calibration can be performed by adding or removing a known quantity of material from the vessel The quantity of material moved must be at least 25 of the vessel s total capacity The procedures for both Live Load calibration methods follow Note Refer to the signal processor manual to input Lo Span and Hi Span Adding Material See Figure 4 1 1 Record the current live load 2 Input Lo Span Lo
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