Specifications

MODEL 300 COMBUSTION ANALYZER
Instruction 24-9223 5-7
5.4 CLEANING THE GAS SAMPLING SYSTEM
If the combustion analyzer is used on either coal or oil fired burners,
particulates can accumulate within the probe and sampling hoses. These
particulates may, in time, build up and cause a restriction in the gas
sampling system. While using the combustion analyzer, the type of fuels
that cause the most dirt and how often the system needs to be cleaned
will become evident.
5.4.1 Cleaning the Probe and its Sampling Hose
Equipment Needed
• Small Allen-Wrench Set • Alcohol
• Hammer • Mild Detergent
• Center Punch • Pipe Cleaners
• Open-End Wrench, 1/2" • Clean Rags
• Particulate Trap Key Wrench • Method of forcing water through
(supplied with analyzer) probe’s sampling hose (see text)
• Gallon Bucket Filled with Clean • Source of Compressed Air
Water (optional)
Procedure
1. Turn off analyzer.
WARNING!
The probe’s particulate trap may contain hot and mildly acidic
water. Take the necessary precautions to avoid being burned.
2. Remove sampling hose from filter/trap, and unplug thermocouple
connector from control panel.
3. See Fig. 5-4 and disassemble the probe in the following manner:
a. Using a hammer and center punch, remove roll pin.
b. Using Allen wrenches, remove Allen screws that secure probe-tube
retainer to probe handle.
c. Remove gas sampling hose from particulate trap.