定扭矩电动扭矩扳手使用方法：
Use method of fixed torque electric wrench:
1、根据工作所需扭矩值要求，确定预置扭矩值。
1. Determine the preset torque value according to the required torque value.
2、预置扭矩值时，将六角调节钥匙插入扳手尾端，然后旋转，调节标尺刻线至所需扭矩值。调节好后，将钥匙拉出。
2. When presetting the torque value, insert the hexagonal adjusting key into the end of the wrench, then rotate and adjust the ruler's marking to the required torque value. After adjusting, pull out the key.
3、在扳手方榫上装上相应套筒，并套住紧固件，再在手柄上平稳地施加扭矩至额定扭矩。当拧紧到发出信号“嗒”的一声（已达到预置扭矩值）止，一次作业完毕。
3. Install the corresponding sleeve on the square tenon of the wrench, and cover the fastener, then apply the torque to the rated torque smoothly on the handle. When tightened to the signal "click" (reached the preset torque value), one operation is completed.
力矩扳手选购参数标准
Standard for Selection and Purchase Parameters of Torque Spanners
1、手柄人体工程学优化设计，握持舒适，大大降低高强度操作 力矩扳手 时产生的疲劳感。
1. Optimum design of handle ergonomics, comfortable grip, greatly reducing the fatigue of high-strength operating torque wrench.
2、双刻度尺，可精确设定扭矩值。
2. Double scale, which can accurately set the torque value.
3、达到设定扭矩值时，发出清晰的报讯声，并且在手柄上可感觉到轻微震动。
3. When the set torque value is reached, a clear signal is emitted and a slight vibration can be felt on the handle.
4、锁定环靠近虎口处，可避免误操作改变设定扭矩值。
4. Locking ring is close to tiger mouth, which can avoid misoperation and change the set torque value.
5、扳手长度：990MM。
5. Spanner length: 990MM.
6、驱动方尺寸3/4英寸。
6. Driver size is 3/4 inch.
7、比较小刻度间隔1。
7. Minimum scale interval 1.
8、应用力矩应在扳手的扭力范围40%至90%之内。
8. The applied torque should be within 40% to 90% of the wrench's torsion range.
9、按扭力要求锁紧螺母。
9. Lock nuts according to torsion requirement.
