How to choose the range of a weighing module
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For example, there is a device on site; the weight of the device itself is 1 ton, while the weight of the material it handles is 3 tons. What range should be chosen? When selecting the range, does one need to take into account the pressure exerted on the device by the pipes connected to it? How do people determine the appropriate range when designing such systems?
When selecting the range of the weighing module, the weight of the equipment, the weight of the materials, and any additional loads should be taken into consideration. In your example, the device itself weighs 1 ton, and the material weighs 3 tons; therefore, a range of at least 4 tons is required. To ensure sufficient safety margin and accuracy, a range slightly greater than the maximum load is usually chosen, such as 5 tons or 6 tons. Furthermore, it is indeed necessary to consider the additional static or dynamic pressure that the pipes connecting the equipment may exert on it, as well as other possible influencing factors such as temperature and vibration. During design, factors such as peak load, operating conditions, expected frequency of use, and accuracy requirements also need to be evaluated in order to select the appropriate range and corresponding weighing module. .
The operation quality is generally between 1/3 and 2/3 of the range; here, a larger range doesn’t have much impact – what matters most is the measurement accuracy, as it determines the operational capability. For example, if it’s CL1.0, there is a 1% measurement error, and it depends on whether the process can accept such an error level. The stress at the connection points of various devices: for devices that have weighing modules attached to their supports, the inlet and outlet pipelines of such devices, especially those used for pushing forces, exert stress on the device. Moreover, if there is vibration inside the device, the weight measurement data will be unstable. The solution is to install flexible connectors on all inlet and outlet pipelines in order to eliminate this stress.