RKI Instruments EAGLE 2 Manual - Manual (Page 100)

90 • Calibrating Using the Auto Calibration Method EAGLE 2 Operator’s Manual
2. Install the probe on the EAGLE 2 inlet fitting. Make sure the probe is
complete with internal O-ring and membrane and that the two halves of
the probe are tightened firmly together to avoid leaks that can affect the
calibration. See Figure 19, “Replacing the Particle Filter and
Hydrophobic Filter Disk” on page 76 for an illustration of the internal
parts of the probe.
3. Move the cursor next to the AUTO CALIBRATION menu item by
using the AIR ▲ YES button.
4. Press and release the POWER ENTER RESET button to display the
Calibration Gas Values Screen.
The gas concentrations displayed in the Calibration Gas Values Screen
must match the gas concentrations listed on the 4-gas calibration cylinder.
If all concentrations match, go to Step 15.
If one or more concentrations do not match, continue with Step 5.
If you do not want to continue with the calibration, press and release the
DISPLAY ADJUST NO button to return to the Calibration Mode Screen.
NOTE: The RKI 4-gas cylinder typically contains 12% O
2
by volume.
When using the auto calibration method, be sure to set the “OXY”
auto calibration gas value to agree with the concentration listed on
the cylinder’s label, not zero.
CALIBRATION MODE
> AUTO CALIBRATION
SINGLE CALIBRATION
PERFORM AIR ADJUST
NORMAL OPERATION
CAL GAS VALUES
CH4 50 %LEL
OXY 12.0 vol%
H2S 25.0 ppm
CO 50 ppm
ENTER TO BEGIN CAL