Electronic truck scales have been found to have severe digital drift during use, sometimes as high as hundreds of kilograms. What should we do with this situation? Shanghai professional truck scale manufacturers introduce the handling method of truck scale digital drift in detail.
1. When measuring the sensor with a multimeter, open the junction box and find that the junction box is not tightly closed, and the junction box has water droplets, so it is determined that the junction box is a problem.
2. Check the instrument (check with the simulator). The instrument was found to be normal and there was no fault.
3. Dry the junction box with a blower and seal it again. The meter does not drift.
The electronic truck scale carrier is a combination of three sections. What should I do if the display value is unstable?
1. Open the main junction box of the scale and remove a set of signal lines ( sensors 1 , 2 , 3 , 4 ). The instrument is still faulty, and the instrument is reconnected after the breakpoint ( sensors 1 , 2 , 3 , 4 ) ), remove another set of signal lines ( sensors 5 , 6 , 7 , and 8 ). After the meter is turned on, the display value is stable, and the junction box and sensor No. 1 are normal ( sensors 1 , 2 , 3 , and 4 ).
2 , with the simulator single instrument, the instrument display is very stable, and then connected to the scale body, the fault is reproduced, and then connected to the simulator, the display value is stable, the instrument confirms no fault.
3. In the bus box, reconnect the signal line of the junction box No. 2 , open the junction box No. 2 ( sensor No. 5.6.7.8 ), observe the terminal board without moisture, and measure the output signals of the four sensors are normal. After the instrument is turned on, the display is unstable. Replace the new terminal block and connect the signal cable. After the instrument is turned on, the display will be stable. Replace the replaced terminal block. After the instrument is turned on, the display is unstable. Then replace the new connection board and the instrument display is stable. Make sure that the No. 2 terminal block is faulty. After replacing the terminal block, it shows unstable troubleshooting.
The above is the processing method of the electronic truck scale that the Eagle brand weighed to introduce the numerical instability. I believe everyone knows. Shanghai Weighing Apparatus Factory is a state-owned enterprise. In 2002 , due to institutional reform, it was changed to Shanghai Eagle Brand Weighing Apparatus Co., Ltd.! Specializing in the production of various types of electronic scales, electronic truck scales, hook scales, electronic floor scales, 1 ton -150 tons of weighbridge.
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