EAGLE 2 Operator’s Manual
Overview • 237
Appendix J: Methane Elimination Mode
Overview
For applications where methane is an interfering gas, you can set the EAGLE 2 to
eliminate most response to methane using methane elimination mode.
CAUTION:
The EAGLE 2 catalytic combustible sensor experiences a significant gas
response drop when it is changed from full response mode to methane
elimination mode. The EAGLE 2 must be calibrated in both full response
mode and in methane elimination mode to account for this. See
“Calibration” on page 240 for further instructions.
Monitoring in Methane Elimination Mode
To monitor an area using methane elimination mode, do the following:
1. Turn on the EAGLE 2 as described in “Start Up” on page 27.
2. Make sure that the EAGLE 2 catalytic combustible channel is set to monitor a gas in
which methane elimination is an option. For a list of these gases and a procedure to
select one, see “Configuring the Combustible Gas” on page 101. A common target
gas is hexane. Once a gas that allows for methane elimination is selected for the
catalytic combustible channel, the methane elimination mode screen becomes part of
Display Mode.
3. Use the DISPLAY button to enter Display Mode and to scroll through the screens
until you reach the Methane Elimination Mode screen. The current setting is
displayed.
4. Press and release the AIR
▲
YES or RANGE
▼
SHIFT button to toggle the setting to
ENABLED.
5. Press and release the POWER ENTER RESET button. The unit will save the setting
and proceed to the next menu item.
6. You will note that if methane elimination is enabled, the Catalytic Sensor Relative
Response screen no longer appears even if the relative response feature in Setup
Mode is turned on. While methane elimination is enabled, the Catalytic Sensor
Relative Response screen will not appear in Display Mode even if the relative
response feature in Setup Mode is enabled.
METHANE ELIMINATION
MODE
DISABLED
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