The premise of load cell replacement is that the axis of the applied force coincides with the axis of the sensor, we should know one thing, that is, with the increase of the additional load, the microvolt/indexing signal output by the sensor decreases.
Regarding the electromechanical scale with an S-shaped sensor installed in the second transmission linkage, we should pay attention to whether the length of the connecting rod after re-installing the sensor is consistent with the original length, and we should also ensure that the first transmission lever is horizontal and the connecting rod and the first transmission lever are straight at an angle of 90 degrees. If there is an error, it will affect the accuracy and sensitivity of the scale. If the length of the link is too long, it will show the phenomenon of "big scale", too long is not so short? The phenomenon of "small scales" will appear. At the same time, it should also be noted that the linkage is in a free suspension state, and it cannot conflict with other objects, so as not to affect the sensitivity of the scale.
This point is often ignored, thinking that there is a proportional relationship between the two, in fact it is not, the replacement sensor should be as much as possible and the original sensor load is the same, if you want to change the load is larger, you have to see if the weighing appearance of the electronic scale can be adjusted, if you can't adjust, then don't change, it is still the original load, because the microvolt / indexing signal output of the sensor with a large load becomes smaller, can not be full-scale output, display, dial adjustment can not achieve the intention, so that it can not be used, if it can be adjusted, then the problem is not big.
Whether it is an electronic scale or an electromechanical scale, after replacing the sensor, it can only be used after passing the verification. In the debugging of the electromechanical scale after replacing the sensor, it should be carried out according to the weighing display appearance manual on the basis of the accurate debugging of the mechanical scale.
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