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CONTENTS
3.1.2 Over-Range Flammable Gas Alarm Function ...
...............................................................................3-1
3.1.3 Oxygen (O
2
) Alarm Limits ............................ 3-1
3.1.4 Toxic Alarm Limits .........................................3-2
3.2 ACKNOWLEDGE GAS ALARMS ......................... 3-4
3.3 HIGH FLAMMABLE GAS OVER-RANGE ALARM ....
....................................................................................3-5
3.4 FAULT ALARMS ................................................... 3-7
3.4.1 Low Battery ..................................................3-7
3.4.2 Zero Fault ..................................................... 3-7
3.4.3 Zero Fault - Only applicable to instruments with
CO2 sensor tted ...................................................3-9
3.4.4 Sensor Fault ............................................... 3-10
3.4.5 Sample Fault (Pumped Instruments Only) .3-12
3.4.6 Calibration Expired ..................................... 3-13
3.4.7 Service Required ........................................3-13
OPERATOR MAINTENANCE ............................... 4-1
4.1 CLEANING ........................................................... 4-1
4.2 FILTER REPLACEMENT .....................................4-1
4.2.1 Sensor Grille Filter........................................4-2
4.2.2 Sample Inlet Filter ........................................4-4
4.2.3 In-line Hydrophobic Filter (Accessory) .........4-6
4.3 BATTERY PACKS ................................................4-8
4.3.1 Charging (Rechargeable) Battery Pack........4-8
4.3.2 Removing and Replacing a Battery Pack ...4-14
4.3.3 Replacing Alkaline Batteries .......................4-16
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