Calibration device is a high-precision static Electronic scales, mainly used for physical verification of hopper scales, its accuracy is much higher than the hanging code calibration, which can make the complex, time-consuming, laborious and physical verification of hopper scales to realize the alternative weights operation, is the bulk measurement of the management and trade settlement of indispensable supporting equipment.

Belonging to the hopper scale calibration device, in particular, a realization of the hopper scale without weights calibration device, including in the hopper is set up below the hopper metering module composed of evenly distributed symmetrical hopper scales, in the hopper on both sides of the symmetrical door-shaped calibration frame were set up on the two sides of the hopper hopper wall are fixed to the symmetrical level of the cantilevered loading plate, and loading plate from the door-shaped calibration frame out of the door-shaped calibration frame is located in the door-shaped calibration frame. The loading plate is installed with a jack, a pad and a manometer in sequence from bottom to top, and the top surface of the manometer is matched with the crossbeam of the door-shaped calibration frame, in which the center axes of the jack, the manometer and the symmetrical hopper sensor coincide. This structure is reasonable and can simplify the process of calibrating the scale, reduce the labor intensity, improve the work efficiency and improve the calibration accuracy.

Method Steps

1、before use, first and pressure meter supporting jack placed in the force measuring machine for calibration.

2、the pressure meter placed on top of the loading plate of the hopper scale weighing module, the jack is placed between the frame of the force measuring instrument, adjust the position of the three, so that the jack item, force measuring instrument and hopper scale load cell of the three ZX axis coincide.

3、through the supporting force gauge, fine-tune the jacks, so that each point is subject to a point of force and each point is balanced.

4、Operate the force measuring instrument of hopper scale, make the meter display zero.

5、Calibrate the weight to be added, calculate the average weight to be added at each point, according to the matching force gauge display, while uniformly adjusting the jack loading. Supporting force gauge shows the required weight, after stabilization, should be as fast as possible to calibrate the hopper scale force gauge.

6、calibration is complete, the jack or loaded, or unloaded, compared with the supporting force gauge and hopper scale force gauge in the weight of the value of the stalls, calculated the accuracy of the hopper scale.