Technical specification of essae weighbridge
- 1. Specification of PLATFORM MAKE OF STEEL: Jindal Steel MATERIAL SPECIFICATION: IS 2062 Fe 540 TYPES OF BEAMS: U Beams/Welded Madular Design & End Block PROTECTION: Antiskid with Anti Corrosion Airless Epoxy Painting with 70 Microns DESIGN OF PLATFORM: 1. Each module shall be seal welded including top plate and contain 3 Nos of U Beam. a. Each Module designed to take CLC of 40 Ton (Concentrated Load Capacity) 2. Depth of module shall be 268 mm and width shall be 1500 mm. 3. Complete structure is fabricated using High tensile plates of grade IS: 2062:2006 E 410 /BSK 46 steel having min yield strength of 410 Mpa (Normal MS plates are 250 Mpa). 4. All welding is done using High tensile wires (ER 90S- G) which is compatible to the grade of high tensile grade of steel. 5. Other specifications are as follows: a. Structures shall be shot blasted to SA 2 ½ b. Finish shall be epoxy painted to 120 DFT (color Phirozy blue ) c. All bolts connecting End Block and Module shall be Zinc plated M 20 – Gr 10.9
- 2. Specification of LOAD CELL GRADE Rated Capacities Rated output Total Error* Zero Return after 30 mins Temperature Effect : On Output : On Zero Zero Balance Temperature range : Operating : Compensated Safe Overload Ultimate Overload Excitation : Recommended : Maximum Input impedance Output Impedance Insulation Impedance Deflection at Rated Capacity Weight : Construction : Environmental Protection Cable E 40klb 3.0 mV/V ±0.25% 0.050±% of Applied Load 0.050±% of Applied Load 0.004±% of Applied Load/*C 0.007±% of Rated output/*C 3.0± of Rated Output -30Deg. C to + 80 Deg. C -10 Deg. C to + 40 Deg. C 150% of rated capacity 300% of Rated Capacity 10 Volts AC or DC 15 Volts AC or DC 780±20 Ohms 705±5 Ohms >1000 Mega Ohms <0.4 mm 10-25klb : 2.5 kg, 40klb : 5.0 kg, 50-75klb : 8.5 kg Electroless Nickel Plated Alloy steel IP68 4 Core, 14 Strand stainless steel braided cable
- 3. Specification of INDICATOR Features Stable Weight Output. Fully Stainless Steel Body (table Mounting). Complete Protection against electro-magnetic radio and frequency interface. Exceeds OIML Class III. Built-in RS232 Communication. Vacuum Fluorescent Display. Selectable Resolution up to 1 in 15,000. Selectable Auto Zero Tracking. Selectable Tare Limit up to Full Scale. Selectable Load Cell Sensitivity. Specification Capacity : Programmable up to 6 digits. Increment : Programmable 1, 2, 5, or 10. Display Resolution : Maximum 1 in 15,000. Operating Temperature : -10ºC to +55ºC. Operating Humidity : 15 to 93% RH. Speed of A/D Conversion : Selectable up to 12 times per sec. max or 5Hz Non Linearity : 0.016% of Full Scale or Less Repeatability : 0.016% of Applied Load Internal Resolutions : 1/100,000. Communications : Built-in RS 232C. Communication protocol : Selectable to either Half or Full Duplex. Speed of Communication : Selectable from 1200 to 9600 bps. Display type : vacuum Florescent Display. Number of Digits : Seven Height of Display : 0.5 inch Input Voltage : 240V. 50Hz. Power Consumption : 1.2 watts/hour. Keys Available Display Annunciators : ON/OFF, Re-Zero, Tare. Digitizer, Digit Selection, Digit Increment, Accumulation Print Key : Overflow, Tare Indication, Zero Stability & Weight Salient Features No Computer Required Can store up to 20,000 records Direct print without computer Graphical LCD Display with pleasant green backlight Factory Calibration Restore Function.
- 4. Specification of SURGE PROTECTION CUM JUNCTION BOX Protects Load cells against surges caused by lightning. Repeated auto-resetting operation without maintenance. Reliable protection through high surge absorption capacity Weather proof enclosure No effect on system accuracy Specifications Nominal Excitation Voltage : 20 V dc Maximum Excitation Voltage : 32 V dc Peak Impulse Current(8/20ms) : 10kA Leakage Current : 10µA at 32 V dc Ambient Working Temperature : -20ºC to +60ºC Ambient Storage Temperature : -30ºC to +70ºC Humidity : 5% to 95% RH (Non- Condensing) Weight : 1.5kg