E8500 Instruction & Operations Manual
version 1.010
Page 38 of 45
CHAPTER 12
MAINTENANCE
The E8500 emissions analyzer is a sophisticated analytical instrument designed to
perform accurate emissions measurements. However, because the analyzer is a
portable, field use instrument that can be used in many environments, care must be
taken to prevent physical and environmental abuse to help maintain trouble-free
operation.
There are four components that will require periodic inspection or replacement. These
are:
1. The disposable fiber line filter for particulates, located inside the drawer
compartment of the analyzer
2. The disposable round disk condensation filter for moisture, also located inside
the drawer compartment, behind the fiber line filter
3. Gas sensor periodic replacement
4. Printer paper replacement
A. Fiber Line Filter and Condensation Disk Filter replacement
The disposable fiber line filter is located inside the drawer compartment to the left of the
chiller assembly. Its function is to prevent soot, smoke, & dust particles from reaching
the analyzer pump and sensors. The disk condensation filter is also located in the same
area behind the fiber line filter. Its function is to prevent any residual water from
penetrating into the sensor area.
You must replace the filters when they become discolored or show any signs of cracks.
Never operate the analyzer without the filters.
Frequency of filter replacement depends on the type of fuel burned in the combustion
process being measured and the hours of active use.
To replace the filters pull out the drawer compartment and disconnect the two pieces of
flexible tubing that hold the respective filters in place. If you are replacing the disk filter
make sure that the filter’s lettering is facing the front of the drawer.
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