Digital manual torsion spring testing machine

1、 Function
The ZBN series digital torsion spring testing machine is an intelligent and multifunctional measuring instrument designed and manufactured for testing and inspecting various torsion springs. It has the characteristics of simple operation, high precision, comprehensive functions, and easy portability, and is widely used in various industries such as electrical, light industry, mechanical manufacturing, and scientific research institutions.

2、 Specification parameters
1. Measurement parameters:
Model Maximum Test Torque Measurement Range Minimum Reading Value (N · mm)
ZBN-500A 500 mN﹒m 5～500 （mN﹒m） 0.01 mN﹒m
ZBN-1000A 1000 mN﹒m 10～1000 （mN﹒m） 0.1 mN﹒m
ZBN-2000A 2000 mN﹒m 20～2000 （mN﹒m） 0.1 mN﹒m
ZBN-3000A 3000 mN﹒m 30～3000 （mN﹒m） 0.1 mN﹒m
ZBN-5000A 5000 mN﹒m 50～5000 （mN﹒m） 0.1 mN﹒m
ZBN-1 1 N﹒m 0．01～1 （N﹒m） 0.0001 N﹒m
ZBN-2 2 N﹒m 0．02～2 （N﹒m） 0.0001 N﹒m
ZBN-3 3 N﹒m 0．03～3 （N﹒m） 0.0001 N﹒m
ZBN-5 5 N﹒m 0．05～5 （N﹒m） 0.0001 N﹒m
ZBN-10 10 N﹒m 0．1～10 （N﹒m） 0.001 N﹒m
ZBN-20 20 N﹒m 0．2～20 （N﹒m） 0.001 N﹒m
2. Angle resolution: 0.1 °.
3. Torque disc diameter: 100mm.
4. The height of the tested spring is less than 80mm.
5. The maximum reading value of the twist angle is 9999.9 °.

3、 Main features
1. High precision, high resolution, fast sampling speed, and large screen display.
2. Adopting high-precision torque sensors with torque direction display. High precision rotary encoder for arbitrary angle measurement.
3. You can freely set the upper and lower limit torque values, as well as the maximum and minimum rotation angle values. When the set value exceeds the set range, the text will flash and the buzzer will sound an alarm.
4. Three parameter displays (torque value, rotation angle, spring stiffness)
4. Three units can be converted to each other for selection (N • m, kgf • cm, Ib • in).
5. Real time, peak, and automatic peak modes can be switched freely.
6. The USB interface is used to communicate with the PC, and the synchronous testing function can be connected to a computer for testing. The computer displays the test torque, angle torque, time angle and time curve graphs synchronously, as well as detailed measurement parameter records during the testing process, which can be saved, printed, and used for various analyses.
7. Peak holding, automatic release function, and free setting of release time.
8. Large storage capacity, capable of storing 99 sets of test data.
9. Automatic shutdown function without operation, time can be freely set.
4、 Product schematic diagram


5、 Button Description
1. ON/OFF button: can be used to turn on and off the device.
2. Angle reset button: During real-time measurement, pressing this button can correct the angle zero point.
3. View key: This key allows you to view stored measurement data on the measurement interface.
4. Reset key: During real-time measurement, pressing this key can correct the torque zero point. During peak and automatic peak periods, pressing this key can clear the peak and restore to zero; When viewing the interface, press this key to clear the current stored measurement values, and long press this key to clear all stored measurement values. In the user settings interface, press this key to return to the previous interface without saving data.
5. Peak key: used to switch between real-time, peak, and automatic peak measurement modes in the measurement interface, and has an upward function in the settings interface. On the viewing interface, press this key to view the previous data.
6. Save button: used to save measurement data in the measurement interface, and has a downward function in the settings interface. On the viewing interface, press this key to view the next data.
7. Print button: In the measurement interface, press this button to print the stored measurement values (except for those without printing function). It has a left shift function in the settings interface.
8. Unit key: Used to switch between N • m, kgf • cm, and Ib • in units on the measurement interface. It has a right shift function in the settings interface.
9. Settings key: Users can enter the settings menu through this key on the measurement interface and save data by pressing this key when setting data.