EAGLE 2 Operator’s Manual
TC Calibration • 187
TC Calibration
A TC channel can be calibrated using the auto calibration method or the single calibration
method. To calibrate a TC channel using the single calibration method, see “Calibrating
Using the Single Calibration Method” on page 62 and follow the instructions for
calibrating a single channel. If your instrument is a multi-channel instrument that includes
one or more TC channels, 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 a TC channel configured
for 0-100 %vol CH
4
. To use the auto calibration method to calibrate a multi-channel
instrument that includes a TC 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 TC channel. See Table 22 on page 199 for available cylinders. Make sure
your calibration cylinder is appropriate for the TC detection range.
If the EAGLE 2 is intended for use in a landfill, RKI Instruments, Inc. recommends
using the carbon dioxide/methane mix calibration cylinder because it is representative
of gases present in a landfill.
NOTE:
If your instrument has more than one TC sensor, you will need a calibration
cylinder for each sensor.
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
.
CALIBRATION MODE
> AUTO CALIBRATION
SINGLE CALIBRATION
PERFORM AIR ADJUST
NORMAL OPERATION
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