SEKURE SX-3100LCD Manuel de l'opérateur Page 362

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350 GAS ANALYZER
INSTALLING NEW O2 SENSOR
The software indicates when the O2 (oxygen) sensor requires replacement. The normal
life expectancy is one year. The sensor degrades in the presence of oxygen. Because of
this, replacement sensors should remain in a sealed package until needed in order to
maximize sensor life.
To replace the O2S Sensor, do the following:
1. Precondition the sensor: Open oxygen sensor package 5 to 10 hours prior to
installation. If the sensor is calibrated immediately after exposure to air, it may drift.
2. While the Gas Analyzer is shut off, replace the old sensor with the new sensor;
remember to reconnect the O2S cable to the oxygen sensor.
3. Discard the old oxygen sensor.
4. Perform a Leak Test (5 from the <MAINTENANCE> menu) to check system
integrity.
5. Run the <INSTALL O2 SENS> by selecting 6 from the <MAINTENANCE> menu.
O
2
SENSOR
"O" RING
FIGURE 12. Replacing the Oxygen Sensor
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