one. Electronic truck scale selection: mainly based on the national foreign trade settlement electronic truck scale verification procedures and the actual use of the factory requirements to determine the parameters of electronic truck scale.

two. The main parameters and requirements of digital electronic truck scale are explained.

1. Maximum weighing: 100t (the maximum gross weight of the truck: tare + net weight)

2. Check the scale value: 50kg. Or 20Kg (statutory approval of the minimum scale value) If the test sub-scale value: 50kg election, the test allowable error, such as 20t weight, scale tolerance 25kg If the test scale value: Election 20kg, then the test to allow the error, such as 20t weight, the scale allows only 10kg error for some of the producers to write is to show the scale value: truck scale verification procedures clearly defined, check the name on the nameplate written on the test index Value, and show the scale value of the country does not recognize. Test division value: 20kg (recommended choice, foreign trade settlement, high precision. Small error, reduce trade disputes) So, but the test division value selected, test sub-degree. The accuracy of the sensor is determined

3. Rated by the number of: 50001) Maximum weighing / test scale value = 100t / 50kg = 20002) Maximum weighing / test scale value = 100t / 20kg = 5000

The accuracy of the sensor: usually 1000; 2000; 3000; 4000; 5000; 6000 test sub-number if selected: the largest weighing / test scale value = 100t / 50kg = 2000, the accuracy of the sensor ≥ 2000 test division ; If the election: the maximum weighing / test scale value = 100t / 20kg = 5000, the accuracy of the sensor ≥ 5000 test sub-degree can be; in order to prevent shoddy, with 3000 test sub-degree sensor to fill 5000 test sub-degree sensor , To provide 5000 test sub-degree sensor production license to confirm.

5. Electronic truck scale Comprehensive protection class: IP69KIP68: continuous flooding: can be in a specific condition for a short time can be immersed in water, there should not be able to cause damage to the amount of water, but the sensor can not be washed with water gun. IP69K: , The water is 14 ~ 16l / min, the water pressure 800 ~ 1000kpa, the water temperature can be ~ 60 ° C, in any direction from the test object 100 ~ 150mm distance washed 30 seconds due to the site dust, and can only be installed in the shallow foundation pit, In order to reduce the daily maintenance costs, it is impossible to lift the crane with a crane to clean up the garbage, can only use high pressure water gun rushed to the pit pit garbage, but also take into account the shallow foundation pit truck summer big two, the sensor may be immersed in water, the highest summer temperature More than 50 degrees. Comprehensive consideration: the choice of IP69K more reasonable, reducing the failure rate, reducing the damage to the accessories so that the long-term stable and reliable truck.

6. Sensor connection form: no junction box type with terminal box, because the domestic junction box can not reach IP69K level and no certificate

7. Truck scale bearing platform: