Identifying Refrigerant Purity

CAUTION: THE PURITY OF THE SYSTEM REFRIGERANT SHOULD BE CONFIRMED BEFORE ANY OTHER DIAGNOSTICS ARE BEGUN. THE RI-2002DS REFRIGERANT IDENTIFIER HAS THE ABILITY TO IDENTIFY R-12, R134a, R-22, POTENTIALLY DANGEROUS HYDROCARBONS, AND NON-CONDENSABLE GASES (NCG) SUCH AS AIR. IF THE A/C SYSTEM CONTAINS ANYTHING LESS THAN 98 PERCENT PURE REFRIGERANT, THE REFRIGERANT IS CONSIDERED CONTAMINATED AND THE TEMPERATURE/PRESSURE CHARTS WILL NOT BE VALID. CONTAMINATED REFRIGERANT SHOULD NOT BE RECOVERED AS IT WILL CONTAMINATE THE RECOVERY MACHINE AND REFRIGERANT SUPPLY TANK. AIR IS NOT CONSIDERED A CONTAMINATE AS IT CAN BE PURGED.




1. Turn On refrigerant identifier and let it reach operating temperature (3-5 minutes).
2. When display reads "HOSE," and with the vehicle turned Off, attach the hose to the low side (suction) port and open service valves.
3. Press "ENTER" button.
4. The display will read "GAS" as a sample of refrigerant is taken and analyzed.
5. When analysis is complete, display will show, by percentage, the make-up of gases.
6. If refrigerant is less than 98 percent pure, the temperature/pressure charts will not be accurate for system diagnosis. If refrigerant is pure but contains air, system should be recovered and recharged with virgin refrigerant before proceeding.