depletes over time, the number of displayed chevrons will decrease. It is recommended that the sensor is replaced when two or fewer chevrons are displayed.

Calibration

Oxygen Sensor (O2)

Electrochemical sensors degrade slowly over time. For optimal performance and to ensure accuracy, it is recommended that the oxygen sensor be span calibrated daily using normal outside atmosphere air (20.9% O2). Use the following steps to calibrate the oxygen sensor.

1.Turn on the analyzer and allow it to warm up for at least one (1) minute. Ensure the Sleep Mode Timeout is set greater than one minute.

2.Press the SAMPLE button to turn on the sample pump. Allow the pump to draw

in outside atmosphere air (20.9% O2) for thirty (30) seconds or until the oxygen reading has stabilized.

3.If oxygen reading is greater than +/- 0.3% of the sampled air, then CAL adjust is

recommended. Press the MENU button to enter the Program Mode. The LCD will display: O2 CAL?.

4. Press the YES/NO button. The LCD will display: O2 XX.XX. Press the arrow buttons to adjust the O2 value to read 20.90.

5.Press the SAVE button to save the calibration value and to exit the Program Mode.

Maintenance and Adjustments

Opening / Closing The Analyzer Case

From time to time it will be necessary to open the analyzer case to perform maintenance and/or replace the oxygen sensor. The following procedure is a step by step guide to opening the analyzer. Read through the entire procedure before attempting to open the analyzer case.

Keep in mind that the top half of the case is connected to the bottom half by a non- detachable ribbon cable. Great care should be taken when handling the opened analyzer.

1.To open the analyzer, place the Power switch to the OFF position and place the analyzer face-down on a padded, flat surface.

2.Using a phillips screwdriver, completely remove the six (6) screws from the back of the analyzer.

Teledyne Analytical Instruments

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Teledyne pjnmoo385 Calibration, Maintenance and Adjustments, Oxygen Sensor O2, Opening / Closing The Analyzer Case

pjnmoo385 specifications

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