EWM Digital Mini Torque Wrench

Mini Digital Torque Wrench Manual

I. Overview

1.1 Main uses and scope of application

Mini digital display wrench has a mini-type design, which is more suitable for narrow space operation. At the same time, it has powerful operation functions, including torque setting, unit setting, value storage, value clearing, value output and user calibration. Easy to operate and reduces operator requirements by installing a digital display. Suitable for bolt fastening and control in automobile industry, machinery industry, etc.

Second, the functional characteristics

2.1 large screen, backlight function;

2.2 ± 2% clockwise, ± 2.5% counterclockwise (20 ~ 100% of full scale);

2.3 Can be operated clockwise and counterclockwise;

2.4 The buzzer and LED trigger when the predetermined torque value is reached (peak-peak mode);

2.5 Four engineering units (N.m, kgf.cm, lbf.tf, lbf.in)

2.6 Measurement mode: three measurement modes: real-time mode, peak mode and preset mode.

2.7 999 sets of recordable values

2.8 5 minutes automatic shutdown

Function and name of each component

1.Quick release button 7.Start / zero button

2. Ratchet head (back of 1) 8. Confirm button

3.Steering paddle 9.Menu button

4.LED indicator 10.Down button

5.LCD screen 11.Grip

6.Up button

Product technical specifications

*: See comments at the end of the form

note:

* 1. The accuracy guarantee range is from 20% to 100% of the maximum operating value. Torque accuracy is a normal value. The calibration accuracy is based on the middle groove of the five grooves on the grip. To ensure accuracy, it is recommended to calibrate once a year.

* 2. Life test includes horizontal test and vertical test.

* 3. \"One time \" means apply the wrench from 0N.m to the maximum operating setting value of the wrench, and then return to 0N.m.

% 1, precautions before using a wrench

5.1, press \"C \" key to turn on the wrench power

5.2 After the power is turned on, before using, press \"C \" to reset the wrench

note:

1. If an external force has been applied to the wrench before the power is turned on, an offset value will be displayed on the screen after the power is turned on / reset.

2. \"N.m \" is the unit, which is loaded from EEPROM. Once the user changes the unit or mode, the EEPROM will always exist.

5.3 Wake the wrench during sleep

5.3.1. The wrench is for power saving, if there is no operation. It will enter sleep mode after about 5 minutes. Press \"C \" key to wake up the wrench

5.4, ​​low voltage protection

5.4.1. If the system detects that the battery voltage is lower than 2.2V, the wrench will cut off the power; when the wrench voltage is lower than 2.2V, the wrench will automatically shut down.

% 1, how to use

6.1 Start

Short press the\"\" P / C \"key to turn on the machine. If the battery power is insufficient after the start, it will automatically shut down and can be used normally after replacing the battery.

6.2 Unit switching

In the power-on state, in the non-setting interface of the user interface, press the\"U / S \" key to switch between the four engineering units.

6.3 Mode conversion

In the power on state, press \"\"Switchable mode conversion. Digital torque wrench has \" T \"real-time mode / \" P \"peak mode / \" Pre \"preset mode and so on.

A. Real-time mode

The real-time measurement mode follows the applied torque value in real time. When the torque is unloaded, the torque value is automatically reset to zero. When the LCD screen displays\"T\", it is in real-time mode, please press \"\"Key to switch working mode.

B, peak mode

In peak measurement mode, when torque is applied, the wrench will lock the maximum applied torque and display it on the LCD screen. When the torque is unloaded, the peak torque will be locked, and the LCD will not update the locked peak when it is reloaded. LCD display P is in peak mode, please press \"\"Key to switch working mode.

C, preset mode

In the power on state, press and hold \"\"Key to enter preset value setting, then you can press \"\"Key to increase the target value, or press \"\"Key, decrease the target value or preset value. After setting, press \" U / S \"key to save and exit. After the buzzer is turned on, when the preset target torque value is reached, the buzzer will beep long and red The light is on. Please press \"\"Key for preset mode switching.

6.4 Clear

In measurement mode, press \"P / C \" key to clear the force value directly. In preset or peak mode, press \"P / C \" key to clear the peak hold value to zero.

6.5 Data storage

Short press \"M \" key in the measurement interface to display \"\", It means the save was successful. \" Is displayed\", It means that the save failed. When the force value is zero, it cannot be saved, it will prompt \"\".

6.6 Data viewing

Press the\"\" P / C \"key to boot or in the user interface, press and hold the\"\"M \" key for a long time to view the saved data, and you can pass it in the data viewing interface. \"\"or\"\"Key to view the saved record. When viewing is complete, press \" M \"key to exit.

6.7 Data deletion

Press \"P / C \" key to turn on or in the measurement interface, press and hold \"M \" key to display the saved data, press \"U / S \" key to select the deletion method, \"ALL \" means Delete all at once, \"ONE \" means delete one by one. After selecting, press \"P / C \" key to delete the saved data.

6.8 Restore factory settings

The user can restore the instrument to factory settings through this function. Long press the\"\" U / S \"key to enter the system menu selection, short press the\"\"U / S \" key to select the\"RSET \" menu, then press\"\"\"Key to select the number 1 or 0. To restore the factory settings, select \" 1 \"and short press the\" U / S \"key to exit the system menu, that is, the product restores the factory settings. If not, select \" 0 \"After that, press the\" U / S \"key shortly to exit the system menu.

6.9 Buzzer function

Long press the\"\" U / S \"key to enter the system menu, then short press the\"\"U / S \" key to select the\"\" BUZZ \"option, short press \"The \"key selects whether to turn on the buzzer. If the buzzer is turned on, select \" 1 \"and short press the\" U / S \"key to exit the system menu, that is, the buzzer is turned on. If it is not turned on, select \"0 \" Short press \"U / S \" key to exit the system menu.

6.10 Display backlight function

Long press the\"\" U / S \"key to enter the system menu, then short press the\"\"U / S \" key to select the \"LTON \" option, short press \"\"Key to choose whether to turn on the backlight function. If you turn on the backlight function, select \" 1 \"and shortly press the\" U / S \"key to exit the system menu, that is, the backlight function is turned on. If not, select \" After 0 \", press the\" U / S \"key quickly to exit the system menu.

% 1, maintenance and storage

7.1 Calibration cycle, need to re-calibrate once a year.

7.2 Excessive torque may cause damage or loss of accuracy. Do not exceed the maximum torque range of 120%.

7.3 Do not shake the wrench violently, drop it on the ground or use a hammer to hit it randomly.

7.4 When the battery is low, please replace the battery in time.

7.5 Do not place the wrench in a place with high temperature, high humidity or direct sunlight.

7.6 Do not use a wrench near water.

7.7 If you accidentally wet the wrench, wipe it off immediately with a dry towel.

7.8 Do not use organic solvents to clean the wrench, such as alcohol or paint thinner.

7.9 Do not place the wrench near magnetic objects.

7.10 Do not place the wrench in a place with a lot of dust or sand. This will cause serious damage to the wrench.

7.11 Do not press on the LCD screen.

% 1, detail list of random attachments