186 • Start Up and Normal Operation
EAGLE 2 Operator’s Manual
Start Up and Normal Operation
For instructions to startup and use an EAGLE 2 that includes a TC sensor, reference “Start
Up” on page 27, “Measuring Mode, Normal Operation” on page 33, and “Measuring
Mode, Alarms” on page 38. Follow these instructions keeping the following in mind:
•
The TC sensor is used to monitor combustible gases above their LEL (lower explosive
limit). When monitoring the target gas in %volume, be aware that you may be
monitoring gas levels that are potentially explosive.
Catalytic (LEL) Sensor Screen
When either a TC sensor or an infrared combustible sensor is installed in an EAGLE 2
along with a catalytic combustible LEL sensor, the user has the option of turning off the
catalytic combustible LEL sensor in Display Mode. If the unit is going to be used for
sampling known high-levels of combustible gas or in areas with known catalytic sensor
poisons such as silicone vapors, the catalytic combustible sensor should be turned off.
Even though this sensor has its own protective shut off, exposure to high levels of
combustible gas can still stress the catalytic LEL sensor. The catalytic LEL sensor can be
enabled or disabled in the Catalytic (LEL) Sensor screen in Display Mode. The default
setting is enabled. To change the setting, do the following:
NOTE:
The Catalytic (LEL) Sensor setting is reset when the EAGLE 2 is turned off.
When the EAGLE 2 is turned on, this setting is always ENABLED.
1. Use the DISPLAY ADJUST NO button to enter Display Mode and scroll to the
Catalytic (LEL) Sensor screen. The current setting will be flashing. The screen below
indicates the warning that appears when a TC sensor and a catalytic LEL sensor are
both installed. Since the TC sensor only reads in %volume, if the catalytic LEL sensor
is disabled, there will be no alarms for the LEL range.
2. Use the AIR
▲
YES or RANGE
▼
SHIFT button to toggle to the desired setting.
If set to DISABLED, the gas reading for the catalytic LEL channel will be replaced
by dashes (---).
3. Press and release POWER ENTER RESET to save the setting and return to the main
menu.
4. Use the DISPLAY ADJUST NO button to scroll through the rest of Display Mode
and enter Normal Operation.
CAT (LEL) SENSOR
* * * WARNING * * *
NO LEL ALARMS IF
CAT (LEL) IS DISABLED
ENABLED
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