Elitech LMC-100F+ Refrigerant Heat Pump Scale Digital HVAC Charging Recovery Scale 110Lbs/50Kg, Resolution 2g

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. ( When “C 0” displays, the "STABLE" sign is on at the same time. If "STABLE" flashes, it indicates that the signal is unstable. )
5. When "C 0" is displayed, and "STABLE" is displayed stably, zero calibration is completed. The scale will then display "C 30" and enter the full-range calibration;
6. Put 30Kg weight (or objects of 30kg exactly) on the center of the scale, wait for the "Stable" sign to show, then all calibration is completed. The scale will enter into weighing status automatically.
PS. Objects or weights used for calibration should be very accurate at 30kg. The accuracy of the scale depends on the accuracy of the calibrated weight. The scale range of LMC-100F is 50KG, and the weight of 30KG is used for calibration.