Maintenance | 3000ZA | |
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Maintenance
5.1 Routine Maintenance
Aside from normal cleaning and checking for leaks at the gas connections, routine maintenance is limited to replacing the sensor and fuses, and recalibration. For recalibration, see Section 4.4 Calibration.
WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS MANUAL.
5.2 Cell Replacement
The ZrO2 sensor is a sealed transducer with no electrolyte to change or electrodes to clean. When the cell reaches the end of its useful life, it is replaced. The spent sensor should be discarded according to local regulations.
5.2.1 Removing the Sensor
The ZrO2 sensor is located inside the nylon cell block behind the front panel.
To remove an existing cell (refer to Figure
1.Remove power to the instrument by unplugging the power cord at the power source.
2.Open the front panel door by pressing the release button on the top right corner of the door all the way in with a narrow gauge tool.
3.Unscrew the collar on the top assembly of the cell block from the bottom section of the cell block assembly. The sensor is attached to pin sockets on the bottom assembly.
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