Teledyne API – Model T108 Addendum to T100 Manual
Troubleshooting and Service
07268C DCN8258
17
use it to measure CO
2
flow. Or use a flowmeter such as a soap bubble, or BIOS – DryCal
flowmeter that measures volume flow
2.
Allow the T108 to stabilize at span for at least 30 minutes.
3.
Check the converter efficiency by adjusting the converter’s temperature controller set point:
Starting at the converters normal set-point of 1000
o
C, lower the set-point temperature of the
Converter in 5
o
C increments (allowing 10 minutes minimum settling time between
increments) until a drop of approximately 5% of Full Scale is observed. Note the Thermal
Converter temperature at this point.
Verify that the converter efficiency does not drop by 5% until the temperature has dropped by
at least 40
o
C,
Return the temperature set point to 1000
o
C.
2.4 SAMPLE DILUTER MAINTENANCE
The sample diluter is used to inject a small amount of ambient air into the sample stream to provide
oxygen for the converter. The diluter is located on the inside rear panel of the SO
2
analyzer. It consists of
a stainless steel block and 2 orifices to control the amount of sample and air that is blended.
There should be no periodic maintenance required on this assembly, but a diagram (Figure 2-1) is
included in case rebuilding of this assembly is required.
Figure 2-1. Diluter Flow Block Assembly
Summary of Contents for T108 Series
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