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, R-134A, R-22, POTENTIALLY DANGEROUS HYDROCARBONS, AND NON-CONDENSABLE GASES (NCG) SUCH AS AIR. IP 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 the refrigerant identifier and let it reach operating temperature (3-5 minutes).
2. When the display reads "HOSE," and with the vehicle turned Of{ attach the hose to the low side (suction) port and open the service valves.
3. Press the "ENTER" button.
4. The display will read "GAS" as a sample of refrigerant is taken and analyzed.
5. When analysis is complete the display will show, by percentage, the make-up of the gas.
6. If the refrigerant is less than 98 percent pure the temperature/pressure charts will not be accurate for system diagnosis. If the refrigerant is pure but contains air, the system should be recovered and recharged with virgin refrigerant before proceeding.