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S E R V I C I N G T H E F I L T E R
Filter service frequency is dependent on the operating conditions. Continuous use, testing vehicles that have not been
warmed-up to normal operating temperature, or testing engines that have excessive emissions will require more
frequent filter service.
Figure 3: Filter Assemblies
The primary filter element is an unwoven, disposable material inside a disposable bowl. If debris builds up on the filter
material, becomes discolored and the sample flow is reduced, the filter and bowl should be replaced.
1.
Turn off power to the analyzer.
2.
Remove the water drain tubing from the bottom of the filter bowl.
3.
Remove the filter bowl by turning it counterclockwise.
4.
Replace the old filter and bowl with a new one. Use only Summit part number 12-01-05028 as a
replacement.
F R O N T P A N E L A N D E X T E R I O R
To maintain the appearance of the analyzer, periodically clean the exterior with a soft damp cloth. Use a mild detergent
to remove grease.
CAUTION
: DO NOT USE CLEANERS SUCH AS ACETONE, BENZENE, CARBON TETRACHLORIDE,
GASOLINE, OR TOLUENE, AS THEY CAN DAMAGE PLASTIC COMPONENTS AND AFFECT ANALYZER
ACCURACY IF THEY CONTAMINATE THE SAMPLING SYSTEM.
Gasoline, brake fluid, and penetrating oil spills should be immediately cleaned from the analyzer surface to protect its
finish.
O X Y G E N S E N S O R
The oxygen sensor used in the analyzer requires replacement every 12
months. Several faults can be caused by an
oxygen sensor defect, including:
Zero Failure in the after a zero procedure (manual or automatic).
General Failure. This may occur if the wire harness to the O
2
sensor is not connected.
NOTE: Once the shipping container can is opened, the sensor begins to deteriorate. Sensor life
in open air is six months, regardless of how often the analyzer is used.