Model ELC-30S-H - Encardio Rite

INTRODUCTIONSTRAIN GAGE TYPE CENTREHOLE HIGHH CAPACITY LOAD CELLModel ELC-30S-HLoad cell is used to determine load inrock bolts, tiebacks,foundation anchors, cables or struts depending on theapplication.Encardio-rite model ELC-30S-H is also used for compressive loadmeasurement between structural members i.e. tunnel supports orat the junction between a beam and the top of a pile strut.FEATURESRugged&robustconstructionSuitablefor hostile&severe environmentTemperaturecompensatedEight or morestraingagesincorporatedtoreduce positioning effectAny standard strain gagebridge measuring read-outdevice canbe usedThe Encardio-rite model ELC-30S-H is a precision engineered highcapacity load cell with a central cylindrical hole. It is speciallydesigned for civil engineeringapplications. It is available incapacities ranging from3500 kN to 10000 kN.OVERVIEWThe centerhole load cell comprises of a cylinder of high strengthmartensitic stainless steel. It generally uses eight 350 Ohmresistance strain gages, wired to form a 700 Ohmbridge forcapacity 3500 kN and 5000 kN. For capacities above 5000 kN,sixteen 350Ohm resistance strain gages are used to form a 1400Ohm bridge.To minimize the effect of unevenn and eccentric loading, the straingages are equally spaced along the circumference. Load applied tothe cell can be measured by using any standard digital read-outunit suitable for resistance strain gage applications.The sectional area of the element is varied in the different capacityload cells to give approximatelythe samemillivolt output for avariation ofzero to full load.APPLICATIONSTo determine load in rockbolts, tiebacks, foundationnanchors, cables or strutsProof testing and longtermperformanceemonitoringofdifferentkind of anchorsystemsCompressiveloadmeasurementbetweenstructuralmembersi.e.tunnel supports or at thejunction between a beamandthe top of a pile strutUsedextensivelyforcorrelating data obtainedfromboreholeextensometerss

DIMENSIONSSPECIFICATIONSTypeResistive strain gageRange (kN/ID mm) 3500/185, 5000/202,7500/227, 10000/210, or asspecifiedOver range 120 %capacityNon linearity ± 1 % fs ( ± 0.5 % fs alsoavailable)Output1.5 mV/V ± 20 %Excitation10 V DC (max. 20VDC)Terminal resistance (3500/5000 kN)Input770 Ohm ± 5 %Output700 Ohm ± 1 %Terminal resistance (above 5000 kN)Input1540Ohm ± 5 %Output14000 Ohm ± 1 %Temperature limit-20 to80°CCable connectionFourcore shielded 5mlong/ /or as specifiedRequiredPortable read-out unit/accessoriesLogger*All specifications subject to change without priorr noticeORDERING INFORMATIONModelCapacity kN/IDELC-30S-H- X/YCapacity kN35005000750010000Centre hole loadcellD1(ID) D2(OD)Ht. (A)mm mm mm185 260 90202227210293315315150150150Load distribution/bearingplateWt.kgD1(ID)mmmD3/ /D2(OD) mmHt. (A)mmWt. kg11 185 250601134 202 295702036 227 315702142 210 3158028ENCARDIO-RITE ELECTRONICSPVT. LTD.A-7 IndustrialEstate, Talkatora Road, Lucknow, UP-226011, IndiaP +91 522 2661040, F +91 522 2662403, geotech@encardio.comInternational: P +91 522 2661044, www.encardio.comDATAA SHEET 1110-12 R02