RKI Instruments Gas Tracer - Manual (Page 130)

122 • Using Maintenance Mode Gas Tracer Operator’s Manual
Performing a Fresh Air Adjustment
1. Confirm you are in a fresh air environment that is free of toxic and
combustible gases and of normal oxygen concentration, 20.9%.
2. Use the AIR▲ or (SHIFT)▼ buttons to navigate to the AIR CAL
menu option.
3. Press and release the POWER ENTER button to enter AIR CAL.
The current gas readings are displayed.
4. Hold down the AIR▲ button. The unit will prompt you to continue
holding the AIR▲ button.
MAINTENANCE
AIR CAL
0
20.9
0
%LEL
%
ppm
MAINTENANCE
CH
4
O
2
PUSH AIR
CO
AIr
CAL
MAINTENANCE
HOLD AIR