Combustion Display – Menu Page 3

The combustion display shows the current reading in % excess oxygen.  Also shown is the relative flow rate of the sample by a fuel gauge on the left-hand side of the screen.  The sample pump may be turned on or off by pressing the circular arrow key.

This screen is not intended to measure oxygen as accurately as a probe.  It is intended only to serve as a method of checking to see if there is oxygen contamination in the sample.  This sensor measures oxygen to a tenth of a percent, where a probe will provide accuracy in the parts per million.