RKI Instruments EAGLE 2 Manual - Manual (Page 251)

EAGLE 2 Operator’s Manual Infrared Methane Calibration • 241
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.
2. Use the AIR ▲ YES or RANGE ▼ SHIFT button to toggle to the desired
setting.
If set to DISABLED, the gas readings 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.
Infrared Methane Calibration
An infrared methane channel can be calibrated using the auto calibration
method or the single calibration method. To calibrate an infrared methane
channel using the single calibration method, see “Calibrating Using the
Single Calibration Method” on page 64 and follow the instructions for
calibrating a single channel. If your instrument is a multi-channel instrument
that includes an infrared methane channel, RKI Instruments, Inc.
recommends using the auto calibration method for convenience. The
calibration instructions below show a 5 channel instrument which has the
four standard channels, LEL/oxygen/H
2
S/CO, and an infrared methane
channel configured for autoranging.
The standard factory calibration for the autoranging infrared methane sensor
is to 50 %LEL. If your instrument is configured for autoranging and you need
CAT (LEL) SENSOR
ENABLED