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About loaders scale / forklift weighing instrument: Loader Scale / forklift is pivotally mounted at the front of the chassis by the boom, the link mechanism and the working device consisting of a loading bucket, shovel in the road, transport, unloading and leveling Self-propelled earth-moving machinery operations. If the dress appropriate work equipment, also can be dozing, lifting, handling timber and steel operations, is a remarkably wide range of construction machinery. Features and weighing meter loader loader self-important, short wheelbase, and always in the flow of job status, it is difficult to use the instrument fixed position cargo weighing it, otherwise it will affect the efficiency, therefore, to find a it completed the work process of goods weighing methods in order to better solve this problem. In general, the measurement accuracy requirements of the goods the higher the better, weighing error generally require about 0.1% to 0.5% . Loaders were loading the initial method using Bulk cargo measuring the proportion of the estimated draw lines to calculate the weight of goods loaded, there is a big error, randomness, inconvenience management and other features of this method. More equipment, will result in direct economic losses and overload transport; less loaded under load, it will reduce transportation efficiency and harm the interests of customers. At the same time, because the loader without leaving material handling weighing device also must rely on car transport or use weighbridge weighing, loading and unloading inefficient and very costly. With the development of railways, automobiles, ports and other logistics handling industry, the cargo load efficiency, security and accuracy of the increasingly high demand. Loader needs an advanced weighing system to achieve the accurate measurement of the loading process of the automatic cargo loading operation to strengthen management to prevent overload and underload, improve loading and unloading efficiency and effectiveness, to ensure the safety of the vehicle transport has a significant effectiveness. How it works: Loader weighing system is generally divided into two parts, signal acquisition and signal processing and display section. Signal acquisition is generally realized by a sensor or transducer, accurate signal acquisition is critical of the accuracy of the weighing of the loader. Loader weighing system, static weighing system used to retrofit existing loader or forklift, because the scene was not suitable weighing device, and the user needs to be measured for trade settlement, the view of the users of the conversion costs demand, usually use static measurement mode. Static measuring and weighing equipment consists of: pressure sensor (1 or 2, depending on the precision requirements) + Normal weighing indicator (optional printer if necessary) + mounting accessories (cited pressure pipe or process interfaces, etc.). General characteristics of static weighing: 1), each weighing when weighing hopper requires consistent position to ensure the accuracy of weighing, thus affecting the efficiency of the weighing; 2), the device features less, a lot of work needs Hand assist, such as recording, computing and the like; 3), applicable to short-term workplace, without a lot of data processing; 4), low cost, a number of individual business units or small units are more suitable; 5), few parameters involved , installation more convenient. Dynamic Weighing System for load metering stations, ports and other large units, should select the dynamic weighing systems to meet the rapid, continuous measurement and management of large amounts of data needs. Dynamic measuring and weighing equipment including: a pressure sensor (2) + dynamic control devices (with print function) + mounting accessories. The main features of dynamic measuring and weighing devices: 1), the cumulative load, weight set, display and overload alarm function; 2), single bucket weight and cumulative weighing, display; 3) truck model selection or input function, vehicle number input function; 4), operators, loaders and loading station ID code input function; 5), operation time (year, month, day, hour, minute) the record; 6), the operation of basic data storage, printing and query function; 7), dynamic sampling and mold burnt algorithm, dynamic calibration and dynamic weighing without stopping bucket lift during automatic weighing; 8), using a loader power. 9), dual hydraulic sensors and high-precision A / D converter, high accuracy. 10), you can set auto-zero or manually set to zero. Select the sensor according to the operating characteristics of the loader, the signal acquisition portion generally weighing sensors, pressure (hydraulic) sensors, pressure (hydraulic) transmitter are three, needs to stress that the sensor against overload, anti-vibration, insulation sex, and interference performance than better. A> the load cell sensor is generally used instead of pins used simultaneously to achieve the purpose of weighing. The program for the structural design and installation of high dimensional accuracy of the sensor requirements, so in actual operation often appear low accuracy, installation of replacement is inconvenient and other negative phenomena, and even a security incident, it has not been widely used. B> pressure (hydraulic) sensor, fluid pressure is converted to a weight loading bucket to complete the weighing operations, it is quick and easy modification, measurement accuracy of the device relative to the use of load cells greatly improved safety performance is guaranteed. C> pressure (hydraulic) transmitter sensor output signal is mV, and small signal transmission and processing time susceptible to interference, converted out of the weight easily lead to errors, the display portion is relatively high, the weighing accuracy more difficult to use high demand systems. Transmitter is a good solution to these problems, it is anti-jamming capability, the output signal is large (usually 4 ~ 20mA or 0-10VDC, 0-5VDC), so that the signal processing section and a display section requires greatly reduced, weighing accuracy of the system is also increased accordingly. Action applies to loaders (including forklifts) Automatic weight measurement, overload protection, workload management. You can weigh coal or coke, non-ferrous minerals, earth, granite or marble, sand, gravel, bricks, industrial and residential waste, excavation materials and construction materials such as adding. Applications: mining, railway stations, ports, docks, factories, garages and other wheeled loaders. Here are two suitable loader or forklift weighing devices pressure sensors, transmitters: A1, sputtered film pressure sensor (PPM-216A); This product uses the sputtered film technology combined loader weighing systems design features, mainly by measuring the hydraulic loader and then converted into the weight signal. The main features of the product: a, small size, light weight, can be directly during the installation; high b, accuracy, good long-term stability; c, anti-vibration, shock, overload good; d, corrosion resistance, high temperature, temperature drift Small A2, sputtering film pressure (hydraulic) transmitter (PPM-241A) PPM-241A same weight signal by measuring the oil collected, according to specific requirements of customers using digital signal processing circuit of the sensor. The product features: a, signal, easy conversion; high b, accuracy, good stability; c, anti-vibration, shock, overload capacity is good; strong d, anti-jamming capability; e, corrosion resistance, high temperature, temperature drift small; B1, resistance strain pressure sensor (commonly known as a patch sensor PPM-242L);