In this video I show how to calibrate the electronic head tensioner ProsPro MT-300 also named Alpha M8 (same machine, different brands).
The steps are:
- hold down "enter button" and power on the machine
- default tension 45LB will appear
- using an electronic weight dynamometer pull the string and check the value
- align the value reader in the dynamometer on the monitor until the values are the same
- press "enter" button to confirm (take out the string before the gripper turns back)
- done.
