可調(diào)式扭力扳手也叫預置式扭矩扳手，這款扳手具有預設扭矩數(shù)值和聲響報警的特點，操作起來也是比較簡單的，例如螺栓只需要擰10N.m的力，直接在扳手上設置，到達預設數(shù)值時，“喀嚓”聲響報警，停止用力即可，操作完成。
Adjustable torque wrench is also known as preset torque wrench. This wrench has the characteristics of preset torque value and sound alarm, and it is relatively simple to operate. For example, the bolt only needs to be screwed by 10N. M, and it can be set directly on the wrench. When the preset value is reached, the "click" sound alarm will sound, and the operation can be completed.
可調(diào)式扭力扳手組成及原理：
Composition and principle of adjustable torque wrench:
可調(diào)式扭力扳手一種以高壓氣泵為動力源的扭矩扳手。是由一個或兩個有力的氣動馬達來驅(qū)動帶有三層或更多周轉(zhuǎn)齒輪的扭矩倍增器。 經(jīng)由調(diào)整氣體壓力來控制扭矩大小，為允許特定的扭矩需求設定，每臺工具都配有專用的氣壓先對扭矩的對照圖表和校正報告。且為能更進一步的應用，氣動扭矩扳手可同時搭配扭矩傳感器，時輸出的扭矩更。在獲得所需的扭矩后可使用合適的回路系統(tǒng)以手動或自動來關閉氣源。
The adjustable torque wrench is a torque wrench with high pressure air pump as power source. A torque multiplier with three or more epicyclic gears is driven by one or two powerful pneumatic motors. The torque is controlled by adjusting the gas pressure. In order to allow the specific torque demand setting, each tool is equipped with a special air pressure, and the torque comparison chart and calibration report are provided. For further application, pneumatic torque wrench can be combined with torque sensor at the same time, and the output torque is more. After the required torque is obtained, the air source can be closed manually or automatically by using a suitable loop system.
可調(diào)式扭力扳手是由兩部分組成的，扳手桿和可換頭。在下圖中我們可以看到只要確定扳手方隼的尺寸，就可以更換各式各樣的頭部，出色大的拓寬了扭力扳手的工位需求。
Adjustable torque wrench is composed of two parts, wrench rod and replaceable head. In the figure below, we can see that as long as the size of the wrench square falcon is determined, all kinds of heads can be replaced, which greatly widens the working position requirements of torque wrench.
可調(diào)式扭力扳手特點：
Adjustable torque wrench features:
1、開機自檢及自動置零；面板式軟件調(diào)校及雙向線性修正。
1. Post and automatic zero setting; panel software adjustment and bidirectional linear correction.
2、無信號兩分鐘自動關機；存儲功能300組數(shù)據(jù)。
2. It can automatically shut down for two minutes without signal and store 300 groups of data.
3、扭力方向和欠壓提示。
3. Torque direction and undervoltage indication.
4、防蝕按鍵、低耗電和長期穩(wěn)定性設計。
4. Anti corrosion button, low power consumption and long-term stability design.
5、三種測量單位切換。
5. Switching of three measurement units.
6、三種工作模式(峰值、跟蹤、預置)切換。
6. Three working modes (peak value, tracking and preset) are switched.
7、任意報警值設置聲光報警。
7. Set sound and light alarm for any alarm value.
8、背光顯示，有按鍵或有較大值變化會亮背光，無操作20秒自動關閉。
8. Backlight display: the backlight will be on if there is a key or a large value change, and it will be turned off automatically after 20 seconds without operation.
可調(diào)式扭力扳手是屬于高精密儀器的，有一些事項還是要注意下：
Adjustable torque wrench belongs to high precision instrument. There are some matters needing attention:
1、使用中請勿強烈沖擊。
1. Please do not make strong impact during use.
2、不能當榔頭使用，敲擊工件。
2. Can not be used as a hammer, knock the workpiece.
3、扳手報警后請勿繼續(xù)施力。
3. Do not continue to apply force after the wrench alarm.
4、使用前請檢查扳手上的箭頭是否同施力方向一致，如果不一致請將扳手頭旋轉(zhuǎn)180度重新安裝。
4. Before use, please check whether the arrow on the wrench is consistent with the force application direction. If not, please rotate the wrench head 180 degrees to install again.
5、請勿自行拆卸扳手各部件，以免破壞精度影響使用。
5. Do not disassemble the parts of the wrench by yourself, so as to avoid damaging the accuracy and affecting the use.
6、預置式扭力扳手，使用完后，應把扭力值調(diào)至零位放置，以保持扳手精度，延長使用壽命。
6. After using the preset torque wrench, the torque value should be adjusted to zero position to maintain the accuracy of the wrench and prolong its service life.
