RKI Instruments Inert Gas Testing Eagle with Two Pumps - Manual (Page 52)

46 • Calibration Eagle Instruction Manual
4. Press the POWER/ENTER button. The Single Calibration screen
displays for the channel you selected. The gas reading flashes.
5. Connect the tubing from the regulator to the Eagle’s probe.
NOTE: The combustible gas sensor is a general hydrocarbon sensor
that responds to most flammable vapors and gases; the
response will vary depending upon the substance. For best
results, calibrate the Eagle to the target gas or vapor.
6. If necessary, use the AIR/▲ (increase) and SHIFT/▼ (decrease)
buttons to adjust the reading to match the concentration listed on
the calibration cylinder.
7. Press the POWER/ENTER button to set the span value. SINGLE
CALIBRATION END displays, then the Single Calibration menu
displays.
8. Disconnect the tubing from the probe.
9. Repeat steps 3 through 8 for any other channels you want to
calibrate. Make sure you use an appropriate calibration cylinder
for each channel.
CAUTION: When calibrating the oxygen channel, verify the concentration
of oxygen listed on the cylinder’s label. For oxygen-free samples
(100% nitrogen for example), set the oxygen span setting to
0.0%.
10. After the last channel is calibrated, disconnect the calibration
tubing from the probe, then unscrew the regulator from the
calibration cylinder.
11. With the Single Calibration menu displayed, press the SHIFT/▼
button until the prompt is next to the last channel, then press the
SHIFT/▼ button again. The
ESCAPE message displays.
12. Press the POWER/ENTER button to return to the Calibration
menu.
13. Press the SHIFT/▼ button to place the prompt next to the
NORMAL OPERATION menu option, then press the POWER/
ENTER button to return to the normal screen.
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