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Electronic scales with PSI sensors measure temperature and pressure changes in a vehicle's air suspension. It relays this data to a receiver hardwired into the cab, or wirelessly to a handheld unit, which interprets the data and displays an approximate axle weight or gross vehicle weight.
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Load-cell scales are based on electronic load cell transducers, and can be mechanical or strain-gauge. There is a wide variety of scale types that can be built with load cell technology. Typically load cells are used in payload scales for vehicles with spring suspension.
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are devices for determining the approximate loaded weight of a truck. For many types of trucks, knowing the loaded weight is important for operating safely and maximising payload whilst avoiding fines for overloading. On-board scales use either
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Load scales for air-ride applications that show on-the-ground weight in pounds (LBS) or kilograms (KG) instead of standard PSI. These non-electric gauges are analog (dial-face) with versions that can calibrate for accuracy.
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The convenience of being able to weigh at the loading site is a key factor in the popularity of on-board scales. This ability eliminates the costs associated with using an
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to calculate the weight on the vehicle axles. Operating the truck at its optimal payload ensures that the owner minimises his running costs whilst maximising his profit.
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Air-suspension PSI gauges are used on commercial trucks and semi-trailers where accurate weights are not as critical.
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