Robinair 16009 DiscovR R134a Refrigerant Identifier - Manual (Page 8)

© 2007 Robinair
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8. After analyzing the refrigerant, a PASS or FAIL LED flashes:
a. A flashing PASS LED indicates the refrigerant is 95%
pure or better.
b. A flashing FAIL LED indicates the refrigerant is less
than 95% pure.
c. The EXCESS AIR LED will light with either a PASS or
FAIL LED if the unit has detected a large amount of air
in the refrigerant.
Note: The indication of excess air may be the result of oil or
other contaminants trapped in the brass filter.
9. Disconnect the sample hose from the vehicle to prevent
refrigerant loss.
10. Press the NEXT button.
11. The CALIBRATING LED flashes:
a. Fully squeeze the rubber calibration bulb five (5) times.
b. The unit may now be disconnected from the vehicle;
or press the NEXT button to begin another gas test.
Operating Instructions cont’d