A weighbridge sensor is a type of load cell that is a device that converts a quality signal into a measurable electrical signal output. Common floor scale sensors are mostly resistance strain sensors. The sensor must first consider the actual working environment of the sensor. This is crucial for the correct selection of the sensor. It is related to the normal operation of the sensor, its safety and service life, and the reliability and safety of the entire scale.
Check the weight of the weighbridge sensor first depends on whether the cumulative flow display is in the jump word, whether the instantaneous flow has a display, such as the cumulative flow does not jump, the instantaneous flow does not display, and then check whether the weighbridge load is displayed, if there is no display, The sensor should be checked by a symmetric weight sensor.
Check the weight of the weighbridge sensor first depends on whether the cumulative flow display is in the jump word, whether the instantaneous flow has a display, such as the cumulative flow does not jump, the instantaneous flow does not display, and then check whether the weighbridge load is displayed, if there is no display, The sensor should be checked by a symmetric weight sensor.
First check whether the weighbridge leads have obvious short circuit and open circuit. Check the wiring when there is no such problem. The electronic truck scale load cell has ±6, ±58 four wires, whether it is 4-wire or 6-wire wiring. line. ±6: For the excitation voltage input terminal, the excitation voltage is provided by the accumulator, which should be 10~18V, and 10~12vDC is used more. The ± axis is the signal output, and the size should be 0~30MV. If the sensitivity of the load cell is 1, the value is between 0-20MV.
When the weighbridge is in normal use, the output of the belt does not exceed 15 MV when it is unloaded, and increases proportionally as the load increases. The ±6 of the 6-wire system is the compensation end, and this voltage is consistent with ±6. Therefore, it is a direct method to judge whether the load cell is good or bad.
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