Steel Platform Truck Scale

"1.9.\n\n1.12.\n\n1.19.\n\n1.20.\n\n1.21.\n\n1.22.\n\n1.23,\n\nThe weighbridge shall have a minimum calculated \u201cr\u201d factor 0f 2.94\n\nThe weighbridge shall be designed to have a span deflection ratio that is not less than 1:1,100\nwhen legal highway loading is applied at mid-span of module.\n\nThe weighbridge shall consist of three (3) factory- welded platforms, providing an unobstructed\nweighing surface of 72' (actual) long by 11' (actual) wide.\n\nThe weighbridge shall have a 16\u201d minimum elevation profile and provide a minimum\nunderneath clearance of 5.5\u201d between foundation floor and bottom of weighbridge (or\nsufficient to meet compliance with State and Local Weights and Measures)\n\nThe weighbridge shall be constructed utilizing ASTM-A36 structural steel WF-Beam, sized,\nand arranged for proper strength and able to withstand the stress and loads which result\nwhen vehicles drive onto and off the scale. Weighbridges constructed with bent flat steel\nplate used

as a structural steel member is not acceptable.\n\nThe weighbridge shall be welded in accordance with the requirements of AWS D1.1 by welders\nthat are internally certified and adhere to strict quality standards as outlined in the B-TEK\nQuality Manual that complies with the requirements of ISO-9001:2000.\n\nNo field assembly or welding of individual weighbridges shall be necessary or allowed.\n\nThe weighbridge modules shall include heavy mounting base plates for the load cells.\n\nThe weighbridge modules shall be cleaned prior to the application of any coating or paint to\nremove oil, mill scale, rust, dirt, and other contaminants.\n\nThe weighbridge assembly shall be steel shot blasted to meet standard SSPC-SP6\nrequirements for commercial blast cleaning of unpainted or painted steel surfaces.\n\nThe weighbridge shall be protected by a two-component, high-solids, epoxy primer applied to\na dry film thickness of 2-3 mils, followed by a two-component, polyurethane top-coat applied\n\nto a dry film thickness of 2-3 mils.\n\nOnce cured, the painted weighbridge shall undergo a dry film thickness testing to insure\nproper paint coverage in all areas.\n\nAdditional field painting other than touchup painting of damaged surfaces shall not be required.\n\nLoad cell base plates shall be flush mounted to the concrete piers and anchored using\nexpansion wedge anchor bolts. A minimum of %\u201d x 7\u201d anchor bolts are required.\n\nThe weighbridge shall not require the setting of grout plates for leveling. Grout plates or\nembedded items in the foundation concrete are not allowed.\n" "1.29.\n\n1.30.\n\n1.31.\n\nThe weighbridge shall have amaximum deck thickness of 10-1/2\u201d.\n\nThe weighbridge shall be a WF-Beam bridge design with a minimum of 3/8\u201d thick checkered\nsteel deck plate that is supported with a minimum of (8) longitudinal 10\u201d WF-Beams.\nWeighbridge designs using primary understructure components made of bent plates or\nchannels or tubing are not acceptable.\n\nEach WF-Beam in the weighbridge shall be stitch-welded to the deck plate above. Continuous\nwelding of weighbridge structure that creates sealed cavities or pockets is not acceptable.\n\nThe weighbridge shall be designed to accommodate over 2,000,000 trucks with a DTA of 60,000\nbs. without degradation of the weighbridge or compromising the structuralintegrity.\n\nStructural steel elements of 72\u2019 x 11\u2019 weighbridges shall have a combined minimum weight of\n28,000 Ib. not including sight rail or other options. Weighbridge BOM may be requested to\nconfirm actual build weight.\n\nThe weighbridge shall be available with optional bolt-on safety guiderails (Guide rails are\noptional for surface installations)\n\n1.29.1. The guiderails shall utilize aminimum of 3.5\" diameter SCH 40 pipe.\n\n1.29.2. The guiderails shall be painted yellow for increased driver visibility.\n\n1.29.3. The guide rail assemblies shall bolt to brackets that are welded to the outside beams of\nthe weighbridge and a minimum of 3 bolts shall be used to attach each rail assembly.\nGuide rails that are clamped, wedged, or welded to the weighbridge shall not be\npermitted.\n\nThe weighbridge structure shall be warranted for aminimum of 5-Years.\n\nThe scale shall be a B-TEK Scales Model: CT-7211-DT or equivalent.\n" "SECTION 2.0 - LOAD CELLS AND JUNCTION BOX\n\nLoad cells shall be B-TEK Scales Model: CPD-M Digital or equivalent. CPD-M Digital cells utilize (8) strain\ngages to prevent problems with side loading, end-loading, and torque loading. Many competitive shear\nbeam type load cells are not well suited to handle dynamic loading conditions frequently experienced on\nmost truck scale applications. These types of sensors were designed to be loaded precisely vertical and\ndo not handle side load forces efficiently. Shear beam style load cells are not acceptable.\n\n2.0 - General Provisions\n\n2.\n\n2.2.\n\n2.3;\n\n2.4.\n\n2.3;\n\n2.6;\n\n2:1:\n\n2.8.\n\n2.9.\n\n2.10.\n\n2.11.\n\n2.12.\n\nLoad cells shall be of the Digital (RS-485 output) type and have a minimum capacity of 77,000 Ib.\neach with an overload safety factor of 150%. Traditional analog (low level mV output) load cells\nare not acceptable.\n\nLoad cells shall have a Digital RS-485 output that is not susceptible to electrical or radio\nfrequency noise / interference. Load cells shall have an operating temperature range of at least\n-30C to +70C.\n\nLoad cells shall store their individual calibration data such that in the case of the weight indicator\nbeing replaced, the data can be uploaded into the weight indicator. This feature allows for the\nscale to not need recalibration after weight indicator replacement.\n\nLoad cells shall have a hermetically sealed design to meet NEMA 6P / IP68 / IP69K standards for\nmoisture ingression and water submersion protection.\n\nThe load cells shall have a diagnostic system that allows individual load cell outputs to be visible\nfrom the scale weight indicator.\n\nLoad cells shall be easily serviceable / removable by jacking the weighbridge approximately\n1\u201d. The load cells shall not be bolted to the stand.\n\nLoad cell mounting parts shall consist of hardenedg, stainless alloy components that allow a\nfree-floating platform. Load cell assemblies that require links / loops or other type of\nsuspension system will not be allowed.\n\nJunction boxes shall be constructed of stainless steel with aNEMA 4X rating and include a\nremovable cover with gasket that is secured with screws and include a single directional\nmembrane vent.\n\nLoad cell cables shall be removable from the cell body for ease of replacement. The\nconnector will be rated IP69K and the attached cable will have both a braided metal sheath\nas well as an addition clear poly coating for moisture protection.\n\nSurge voltage and lightning protection will be provided as standard for protection of load cells\nand junction box.\n\nLoad cells shall have a minimum 5-year warranty against defects in materials and\nworkmanship and failure resulting from lightning or surge voltages. The warranty shall cover\nall costs associated with replacement cell, travel, mileage, and on-site labor.\n\nThe load cells shall be B-TEK Model: CPD-M or equivalent.\n"