In the sleep mode, the analyzer will shut down the sensors and most of the processor functions in order to conserve battery power. The sleep mode is indicated by four dots (• • • • ) along the bottom of the display.
To return the analyzer to the Operate Mode, cycle the Power switch off and then on.
Auto Hold Function
The Auto Hold function allows the user to have the oxygen value hold in the display when the sample pump turns off. This function can be turned on or off in the parameter menu.
Battery Level Indicator
The level of battery power can be indicated by pressing the upper left hand corner of the analyzer display decal (just above the MENU button). Four chevrons (<<<<) indicate full battery charge. As the battery charge weakens, the number of displayed chevrons will decrease.
Battery Charging
Both the internal and external batteries may be charged by plugging the Power Supply/Charger into the POWER SUPPLY receptacle located at the bottom of the analyzer.
Filter
In order to prevent damage to the sensors or sample pump it is necessary to use the inline filter every time you are drawing a sample. The filter should be checked periodically and replaced if there are any signs dirt or discoloration in the filter.
The analyzer has a secondary, internal filter. Typically this filter will never need to be changed.
Oxygen Resolution Adjustment
The oxygen resolution adjustment is not functional with the SNACK O2 gas analyzer. Jumper J1 should remain open.
Sensor Life Indicator
The estimated remaining sensor life can be displayed by pressing the upper right hand corner of the analyzer display decal (just above the
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