UEi EAGLE C125, EAGLE C127 Quick Start Manual

C125 & C127 SENSOR CALIBRATION & REPLACEMENT

QUICK START GUIDE

Calibration Instructions;

Note: Disclaimer of Liability

These instructions are prepared for use by trade professionals familiar with gas analysis and detection,
and are familiar or have experience in calibrating gas measurement systems. They are intended to be
as complete and simple as possible to eliminate the chance for error. Certain factors related to analyzer
field recalibration are beyond the control of UEi, and the user should be aware of these factors such as
proper delivery of gas to the analyzer during calibration, the age of the calibration gas, and the accura­cy of the calibration gas.

By using these instructions to recalibrate your instrument, you assume all risks and liability associated
with the measurement of carbon monoxide (CO) gas concentrations.

Indemnification

To the extent permitted by applicable law, by using these instructions to recalibrate your analyzer, you
agree to defend, indemnify, and hold harmless, UEi, its agencies, officers, employees, representatives,
and agents from and against all claims and expenses, including attorneys’ fees, arising out of the use of
this material.

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SENSOR CALIBRATION & REPLACEMENT QUICK START GUIDE .

SENSOR REPLACEMENT

1. Tools required to replace the
sensor include a standard
Phillips screw driver and a
source of calibration gas.

5. Remove the two screws
securing the case halves
together.

2. Remove the protective boot
from the instrument.

6. Separate the case by gently
pressing up on the front
housing with pulling the top
apart.

3. Remove the water trap by
sliding down and then away
from the housing.

7. Lift the main circuit board up

and away from the instrument.

4. Remove the batteries.

a. Be careful of the wiring

harness that powers the pump
and connects to the battery
compartment.

8. Place the instrument on a flat
surface with the circuit board
positioned as shown.

9. Remove the four screws
holding the sensor cover
in place.

10. Remove the sensor cover.

11. Lift the sensor to be replaced
out of the manifold.

a. Sensor located at the top is

O2, and the bottom
position is CO.