1. Initial calibration
Newly purchased or first-time torque wrenches should be initially calibrated before being put into use to ensure that their accuracy meets the requirements.
2. Regular calibration
Torque wrenches should be calibrated regularly depending on the frequency of use. It is generally recommended to calibrate at least once a year, but if used frequently, calibration may be required every six months or less.
3. Calibration after repair
Whenever the torque wrench is repaired or parts are replaced, it should be recalibrated to ensure that its accuracy is not affected.
4. Calibration after environmental changes
If the torque wrench is used under different temperature or humidity conditions, it may also need to be recalibrated, as these environmental factors may affect its measurement accuracy.
5. When the accuracy is suspected to be impaired
If the torque wrench readings are found to be unstable or significantly deviated during use, it should be calibrated immediately to eliminate accuracy problems.
By following the above calibration timing, you can ensure that the torque wrench is always in the best working condition, thereby improving work efficiency and safety.
