As the electric wrench is a high-frequency application tool, in order to improve the measurement accuracy, it is necessary to calibrate and inspect the tool regularly, and configure the electric wrench equipment to meet the use requirements. At present, the electric torque wrench is mainly calibrated by the calibrator, which needs to be checked regularly. Because the calibration environment is a laboratory environment, it is very different from the field operation environment. In order to ensure the effectiveness of calibration management, it is necessary to refer to the actual use site for management, and the error is not affected by the use of occasions. Before use, pay attention to check the accuracy of the electric wrench, and adjust the frequency of calibration and maintenance according to the frequency of use. Usually not less than once a year, the use of maintenance management means to ensure the accuracy of electric torque wrench.

電動(dòng)扭剪扳手的正確使用方法：

The correct use of the electric wrench is as follows:

電動(dòng)扭剪扳手主要用于安裝緊固件，例如螺栓，螺釘和螺母。通過(guò)扭矩控制，確保了螺紋的擰緊，并且不會(huì)因扭矩過(guò)大而損壞螺紋。因此，有必要使用電動(dòng)扭剪扳手進(jìn)行扭矩值固定操作。

Electric wrench is mainly used to install fasteners, such as bolts, screws and nuts. Through torque control, the tightening of thread is ensured, and the thread will not be damaged due to excessive torque. Therefore, it is necessary to use the electric wrench to fix the torque value.

在施加過(guò)程中需要預(yù)先設(shè)置固定扭矩值。當(dāng)達(dá)到設(shè)定值時(shí)，電動(dòng)扭剪扳手將發(fā)出提醒信息，可以感覺(jué)到手部振動(dòng)或聽(tīng)到“喀噠”聲，即扭矩已完成。當(dāng)扭矩值達(dá)到固定位置時(shí)，無(wú)需繼續(xù)施加力。請(qǐng)勿使用沖擊力，停止施加力后，各個(gè)零件復(fù)位。施加扭矩時(shí)，將手握在電動(dòng)扭剪扳手手柄的中間刻度線上，并僅在電動(dòng)扭剪扳手指示的方向上施加力，同時(shí)施力方向應(yīng)在±15°以?xún)?nèi)（垂直方向和水平方向）。

In the process of application, the fixed torque value needs to be set in advance. When the set value is reached, the electric wrench will send out a reminder message, and you can feel the hand vibration or hear the "click" sound, that is, the torque has been completed. When the torque value reaches a fixed position, there is no need to continue to apply force. Do not use impact force. After the force is stopped, all parts will be reset. When applying torque, hold your hand on the middle scale line of the handle of the electric torsional shear wrench, and apply force only in the direction indicated by the electric torsional shear wrench. At the same time, the force application direction should be within ± 15 degrees (vertical direction and horizontal direction).

根據(jù)緊固件的強(qiáng)度和扭矩用以使用合適量程的扳手，并且不允許超過(guò)扳手的適用范圍。扳手在使用前需要調(diào)零，無(wú)荷載時(shí)注意對(duì)扭矩扳手指針的檢查，看指針是否在零標(biāo)度值上，如果不是則需要對(duì)其進(jìn)行調(diào)整。

According to the strength and torque of the fastener, the wrench with appropriate range shall be used, and the application scope of the wrench shall not be exceeded. The wrench needs to be adjusted to zero before use. When there is no load, pay attention to check the pointer of the torque wrench to see whether the pointer is on the zero scale value. If not, it needs to be adjusted.

為確保讀數(shù)準(zhǔn)確，在使用過(guò)程中需要用一只手握住扳手的手柄，使扭矩扳手和拉力保持直角，并穩(wěn)定地施加力。當(dāng)指針指向扭矩值時(shí)，禁止用力過(guò)大，否則會(huì)出現(xiàn)誤差值。測(cè)量完成后，旋轉(zhuǎn)旋鈕將指針?lè)祷氐搅阄?，以便進(jìn)行下一個(gè)應(yīng)用。作為測(cè)量工具，必須注意保護(hù)電動(dòng)扭剪扳手。禁止進(jìn)行扔擲、震動(dòng)以及敲擊等。

In order to ensure accurate reading, it is necessary to hold the handle of the wrench with one hand in the process of use, so that the torque wrench and the tension are kept at right angles, and the force is applied stably. When the pointer points to the torque value, do not use too much force, otherwise the error value will appear. After the measurement, rotate the knob to return the pointer to the zero position for the next application. As a measuring tool, we must pay attention to protect the electric wrench. Throwing, shaking and knocking are prohibited.