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Maintenance
5.2.4 Installing a New Micro-Fuel Cell
It is important to minimize the amount of time that a Teledyne
Percent Oxygen Sensor is exposed to air during the installation process.
The quicker the sensor can be installed into the unit, the faster your TAI
O
sensor will recover to low O
2
This section describes the procedures for removing and installing a
conventional percent oxygen sensor such as the B1C, B3C, A5C, etc.
CAUTION:
DO NOT TOUCH THE SENSING SURFACE OF THE
CELL. IT IS COVERED WITH A DELICATE TEFLON
MEMBRANE THAT CAN LEAK WHEN PUNCTURED.
THE SENSOR MUST BE REPLACED IF THE
MEMBRANE IS DAMAGED.
The cell is a slip-fit into the opening in the cell holder. Place the
cell on the holder with the screen side facing down and push into place.
Note: There is a small location hole drilled in the holder. This
hole mates with a guide pin on the bottom rear of the cell
block. The hole in the cell block holder must align with the
guide pin on the cell block.
1. Remove power from instrument if possible.
2. Remove the old sensor (if installed) from the analyser.
3. For a 3000RS-P it is not necessary to purge with a gas during
sensor replacement, but span gas can be used to prepare for
calibration.
4. Remove sensor from its bag storage.
5. Remove sensor shorting button.
6. Place sensor on sensor holder so that the gold contact plate of
the sensor is facing up towards the sky. Place the cell on the
holder with the screen side facing down and push into place.
7. With the MFC installed in the holder, install items inside the
cell block in order show shown in Figure 5-2.
8. Drop latch to secure holder in place.
9. Purge system with sample or span gas.
10. Power-up.
Teledyne Analytical Instruments
measurement levels.
2
3000RS-P
110
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