The display may show other than 0.00 mm, even though the power is on when you use the digital linear gauge sensor for the first time or you have not been used them for several months. It is because the battery is electrically discharged so please recharge the battery.

 

Charging (restoration) method

1. Connect to the AC adapter and turn off the power. And then charge the battery for 16 hours or more.

2. After charging, please press the reset switch and power switch at the same time to reset the system.