<b>Functions</b><br> <b>Weighing operation:</b><br> The scale is designed for total weight of refrigerant tank no more than 100Kg.<br> 1. Take out the scale from the package, place it on firm and level surface, and press  on the platform.<br> 2. Press button  on the platform.<br> 3. Take out the hand-held device, press the “POWER” button on the hand-held device until the buzzer beeps once, indicating self-test is completed.<br> 4. Wait until signal is connected. If yes, the screen displays icon ; If no, it displays .<br> 5. Press “UNIT” to switch between “Kg”, “Oz” and “Lb”.<br> 6. Press “ZERO” to deduct tare.<br> 7. Place the refrigerant tank in the center of the scale platform; zero it again to display the weight of refrigerant.<br> 8. Observe the change of refrigerant weight real time during charging and recovery. <br> <b>Parameters</b><br> Max weighing:100kg (220Lb)<br> Resolution:LMC-210:5g<br> Accuracy: ±0.05% rdg+10g<br> Power supply: hand-held device: 5 AAA alkaline batteries; scale platform: 5 AA alkaline batteries<br> Duration: 40 hours<br> Operating temperature: -10℃~40℃<br> Storage temperature: -15℃~50℃<br> Temperature fluctuation range: 5℃/h<br> Relative humidity: 50~85%<br> Product size: 271*271*74 mm<br>