1. 直觀的方法——數(shù)顯力矩扳手主電路板上元件較多，很多故障是由短路、斷路、連接不良、插塞接觸、零件角焊等原因造成的。因此，當(dāng)標(biāo)度失敗時(shí)，應(yīng)先用直觀的感覺:視覺、聽覺、聽覺、觸覺等方法來檢查電路板。
1. Intuitive method - there are many components on the main circuit board of the digital torque wrench, and many faults are caused by short circuit, open circuit, poor connection, plug contact, part fillet welding and other reasons. Therefore, when the price scale fails, we should first check the circuit board with intuitive feeling: vision, hearing, hearing, touch and other methods.
2. 比較與替代法——在故障檢測過程中，借助儀器將數(shù)顯力矩扳手與刻度進(jìn)行比較，以便快速發(fā)現(xiàn)故障。另外，如果準(zhǔn)備工作的傳感器、電路板、電源、鑰匙板等部件有損壞的嫌疑，用準(zhǔn)備好的部件更換，然后觀察結(jié)果是否有變化。如果顯示正常，則表示原來的組件有問題。該方法可以快速、準(zhǔn)確地判斷故障點(diǎn)。
2. comparison and substitution method: in the process of fault detection, the digital display torque wrench is compared with the scale by means of the instrument, so as to find the fault quickly. In addition, if the prepared sensor, circuit board, power supply, key board and other components are suspected of damage, replace them with the prepared components, and then observe whether the results change. If the display is normal, there is a problem with the original component. This method can judge the fault point quickly and accurately.
3.電壓測量方法——數(shù)字顯示力矩扳手通過電路元件，對芯片各管角度的工作電壓進(jìn)行測量并與正常值比較，電壓變化較大的地方故障。
3. Voltage measurement method: the digital display torque wrench measures the working voltage of each tube angle of the chip through the circuit element, and compares with the normal value, the local fault with large voltage change.
4. 短路和開路方法——短路方法是將電路的一部分短路，用數(shù)字顯示扭力扳手然后通過示波器或萬用表的測試結(jié)果來確定故障點(diǎn)。開路方法是斷開電路的一部分，用萬用表測量電阻、電壓或電流來確定故障點(diǎn)。
4. Short circuit and open circuit method - the short circuit method is to short a part of the circuit, use the torque wrench with digital display and then determine the fault point through the test results of oscilloscope or multimeter. The open circuit method is to disconnect a part of the circuit and use a multimeter to measure the resistance, voltage or current to determine the fault point.
數(shù)顯力矩扳手是一種精密的測量儀器，特別要注意以下幾點(diǎn):
Digital torque wrench is a kind of precise measuring instrument, especially the following points should be paid attention to:
1. 數(shù)字顯示力矩扳手具有良好的防振、防雨性能，但應(yīng)避免劇烈的振動和長時(shí)間的降雨，特別是在吊秤脫離掛鉤的情況下。
1. The digital display torque wrench has good anti vibration and rainproof performance, but it should avoid violent vibration and long-term rainfall, especially when the scale is separated from the hook.
2. 當(dāng)數(shù)字顯示力矩扳手需要在高溫環(huán)境下工作時(shí)，應(yīng)注意數(shù)字顯示力矩扳手不能長時(shí)間停留在高溫區(qū)域。一般的原理是如果吊秤外殼不熱(70℃)，不會對吊秤產(chǎn)生不良的影響。
2. When the digital display torque wrench needs to work in the high temperature environment, it should be noted that the digital display torque wrench cannot stay in the high temperature area for a long time. The general principle is that if the shell of the scale is not hot (70 ℃), it will not have a bad impact on the scale.
3.避免過載，避免傳感器損壞。
3. Avoid overload and sensor damage.
4. 貯存于配套的包裝盒內(nèi)，貯存處應(yīng)通風(fēng)，相對濕度不超過85%
4. It shall be stored in the matched packing box, and the storage place shall be ventilated, with the relative humidity no more than 85%
This article is organized and published by the manufacturer of electric torque wrench. For more information, please refer to the official website: http://laddervpn.cn
