Elitech Product User Manual - Elitech UK » Refrigerant Scale

English 1. When the power is off, empty the scale and keep the scale on a level surface; 2. Press the ZT button first, and then press the POWER button, keep pressing; 3. After the screen is turned on, release the POWER button, and keep pressing the Z/T button at the same time; 4. When the screen displays "C 0", release the Z/T button....