As the electric torsional shear wrench is a high-frequency application tool, in order to improve the measurement accuracy, it is necessary to calibrate and check the tool regularly, and configure the electric torsional shear wrench equipment that meets the use requirements. At present, the electric torsional shear wrench is mainly calibrated by the calibrator, and the calibrator needs to be checked regularly. Since 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 occasion. Before use, pay attention to check the accuracy of the electric torsion shear wrench, and adjust the calibration and maintenance frequency according to the use frequency. Usually at least once a year, use maintenance and management means to ensure the accuracy of electric torsion shear wrench.

电动扭剪扳手主要用于安装紧固件，例如螺栓，螺钉和螺母。通过扭矩控制，确保了螺纹的拧紧，并且不会因扭矩过大而损坏螺纹。因此，有必要使用电动扭剪扳手进行扭矩值固定操作，在施加过程中需要预先设置固定扭矩值。当达到设定值时，电动扭剪扳手将发出提醒信息，可以感觉到手部振动或听到“喀哒”声，即扭矩已完成。当扭矩值达到固定位置时，无需继续施加力。请勿使用冲击力，停止施加力后，各个零件复位。施加扭矩时，将手握在电动扭剪扳手手柄的中间刻度线上，并仅在电动扭剪扳手指示的方向上施加力，同时施力方向应在±15°以内（垂直方向和水平方向）。

Electric torque shear wrench is mainly used to install fasteners, such as bolts, screws and nuts. Through torque control, the tightening of the thread is ensured, and the thread will not be damaged due to excessive torque. Therefore, it is necessary to use the electric torsion shear wrench to fix the torque value, and the fixed torque value needs to be set in advance during the application process. When the set value is reached, the electric torsion shear wrench will send out a reminder message. You can feel the hand vibration or hear the "click" sound, that is, the torque has been completed. When the torque value reaches the fixed position, no further force is required. 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 torsion shear wrench, and apply force only in the direction indicated by the electric torsion shear wrench, and the force application direction shall be within ± 15 ° (vertical and horizontal).

根据紧固件的强度和扭矩用以使用合适量程的扳手，并且不允许超过扳手的适用范围。扳手在使用前需要调零，无荷载时注意对扭矩扳手指针的检查，看指针是否在零标度值上，如果不是则需要对其进行调整。为确保读数准确，在使用过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，并稳定地施加力。当指针指向扭矩值时，禁止用力过大，否则会出现误差值。测量完成后，旋转旋钮将指针返回到零位，以便进行下一个应用。作为测量工具，必须注意保护电动扭剪扳手。禁止进行扔掷、震动以及敲击。

A wrench with appropriate range shall be used according to the strength and torque of fasteners, and it is not allowed to exceed the application range of the wrench. The wrench needs to be zeroed before use. When there is no load, pay attention to the inspection of the pointer of the torque wrench to see whether the pointer is on the zero scale value. If not, it needs to be adjusted. In order to ensure accurate reading, hold the handle of the wrench with one hand during use, keep the torque wrench at right angles to the tension, and apply force stably. When the pointer points to the torque value, do not apply too much force, otherwise the error value will appear. After the measurement, turn the knob to return the pointer to zero for the next application. As a measuring tool, care must be taken to protect the electric torsion shear wrench. Throwing, shaking and knocking are prohibited.