EAGLE 2 Operator’s Manual
Infrared Hydrocarbon Calibration • 229
calibrated to 10 %vol isobutane.
To use the auto calibration method to calibrate a multi-channel instrument that includes an
infrared hydrocarbon channel, do the following:
1. See “Calibration Supplies and Equipment” on page 55 for a description of the
necessary calibration supplies. In addition to an appropriate multi-gas cylinder that is
used to calibrate any active standard channels, you will also need a cylinder to
calibrate the infrared hydrocarbon channel. See Table 33 on page 236 for available
cylinders. Make sure your calibration cylinder is appropriate for the infrared
hydrocarbon detection range.
2. Find a fresh-air environment. This is an environment free of toxic or combustible
gases and of normal oxygen content (20.9%).
3. While in Measuring Mode, press and hold the RANGE
▼
SHIFT button, then press
the DISPLAY ADJUST NO button and release both buttons.
4. If the unit prompts you for the password, enter it by using the AIR
▲
YES and
RANGE
▼
SHIFT buttons to select each password number and then pressing and
releasing POWER ENTER RESET to enter the number and move on to the next one.
5. The Calibration Mode Screen displays with the cursor next to
AUTO
CALIBRATION
.
6. Move the cursor to the
PERFORM AIR ADJUST
menu item by using the RANGE
▼
SHIFT button.
7. Press and release the POWER ENTER RESET button. The following screen appears.
8. Press and release the AIR
▲
YES button to continue.
If you do not want to continue, press the DISPLAY ADJUST NO button and the unit
will return to the Calibration Mode Screen.
CALIBRATION MODE
> AUTO CALIBRATION
SINGLE CALIBRATION
PERFORM AIR ADJUST
NORMAL OPERATION
CALIBRATION MODE
AUTO CALIBRATION
SINGLE CALIBRATION
> PERFORM AIR ADJUST
NORMAL OPERATION
PERFORM
AIR ADJUST?
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