The TIF TIF9055 Automatic Slimline Electronic Charging/Recovery Scale allows you to quickly, efficiently and automatically charge refrigerant into, or recover refrigerant from, any air conditioning or refrigeration system. It is the most accurate and cost effective method of dispensing refrigerant. The Advanced Charge and Recovery Modes calculate the maximum Charge/Recovery available for you by taking into consideration the cylinder tare weight and the maximum weight capacity of the tank. The Advanced Charge and Recovery Modes calculate the maximum Charge/Recovery available for you by taking into consideration the cylinder tare weight and the maximum weight capacity of the tank.