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Instrument Maintenance
Cap
ATTENTION
220
2. Disconnect the pneumatic tubing attached to both ends of the scrubber's inner
tubing.
3. One end is connected to the sample particulate filter assembly and the other end is
connected to the reaction cell assembly.
4. Both ends are made of the 1/8" black Teflon tubing.
5. Cap one end of the hydrocarbon scrubber.
6. Attach the pressurized air source to the other end of the scrubber inner tubing with
the leak check fixture in line.
Scrubber
Figure 8-4: Hydrocarbon Scrubber Leak check Setup
7. Use the needle valve to adjust the air input until the gauge reads 15 psiA.
Do not exceed a pressure of more than 15 psia.
Do not pull the vacuum through the scrubber.
8. Close the shut-off valve.
9. Wait 5 minutes.
If the gauge pressure drops >1 psi within 5 minutes, then the hydrocarbon scrubber has
an internal leak and must be replaced. Contact Teledyne ML's Customer Service.
06807A(DCNxxxx)
Teledyne ML - T100 UV Fluorescence SO2 Analyzer
Leak Check
Fixture
COULD DAMAGE INSTRUMENT
Pump
or
Pressurized Air
Source
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