The sensitive element of the force sensor is a strain gauge. When leaving the factory, the force sensor defaults to a positive value for tension and a negative value for pressure. The force sensor is equipped with both a hook for pulling force and a flat-head thrust component for thrust, which is convenient for students' experiments and can be easily connected to the trolley.
(1) Zero calibration function: Long press the zero setting button to zero the sensor;
(2) The positive and negative of the switching force is the direction: short press the zero-setting key, the work light next to the zero-setting key is on, and the switching is completed;
(3) The measuring end hook or flat head of the sensor should not be overtightened, which will affect the measured value;
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