Ways to prevent cheating on the electronic truck scale are as follows:
A, through the display instrument reserve base, in order to achieve the purpose of replenish onr's stock in fewer total weight, such as trucks gross weight of 15 tons, 5 tons tare weight, net weight should be 10 tons, and will display instrument reserved negative after the base number (assuming for 1 ton), then the truck weighing 14 tons gross weight becomes, when such goods net weight becomes 9 tons, ate 1 ton. Because it is simple to operate, convenient, is the outlaw to use more of a cheating method. At the same time, the department of pounds and illegal traders inside and outside collusion, collusion is the prerequisite for the success of this method of cheating. The prevention method is: as long as the consignor checks whether the display meter is zero before weighing, if it is not zero, it can be reset by "zero" or "peel" button before weighing.
Second, by placing bricks, earth and other hard objects at the bottom of the weigher body, the principle of reaction force is used to achieve the purpose of reducing the total weight when the weigher is received. As we all know, when the truck arrived at the bearing surface of electronic truck scale, will be on gravity to each ChengChongDian weighing sensor, then the output of the sensor will generate voltage signal, through the operational amplifier, A/D converted the digital signal and sent to the central processor for processing, finally through the display instrument, due to the weight of the truck is vertical downward, if at this time in the bottom of the truck scale cushions to A certain height of bricks or clump, is bound to produce an upward force, to reduce the sensor output signal and make the actual weight of the instrument shows van also decreased accordingly.
Three, through the remote control of the increase and decrease of the key, control the output of the sensor, so that the display of the display instrument is controlled, to large, small, to achieve the purpose of the scale buckle.
Four, through the instrument calibration program, change the normal weighing scales, such as load 10 tons of standard weight, through the range calibration method changes the display value of 10 tons, achieve the goal of grams weigh his buckle, any instrument calibration procedure, for the first time after installation verification, said after range shall be mostly, make the scale weighing error within the tolerance prescribed by the state, as long as the scale were certified before they can use, at the same time, local metrological verification institutions will lead seal, banned touch on instrument, seal, such as damage, the scale of the qualified or failure. To calibrate the range, it is bound to break the seal, so as long as we strictly measure the management personnel seal, we can put an end to this kind of cheating phenomenon. However, there are also some instruments that cannot be lead-sealed. They are entered into the calibration program through password or plug. As long as the password and calibration program are known, the weighing size of the scale can be changed at will.
The above analysis hopes to be helpful to you.
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