Teledyne 6200T - Sulfides Analyzer - Manual (Page 279)

6200T Total Sulfur Analyzer Troubleshooting
Teledyen Analytical Instruments 279
12.8.3. 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 is
included in case rebuilding of this assembly is required. The assembly is shown in
Figure 12-19.
Figure 112-19: Diluter Flow Block Assembly
12.8.4. Thermocouple Replacement
Continuous operation at 1000 ºC will eventually degrade the performance of the
thermocouple used to sense the temperature of the quartz oven. The following
instructions describe how to install a new thermocouple into the Converter Heater
Block. This is a replacement thermocouple (KIT000255). The following instructions
provide the necessary information to remove the existing thermocouple and replace it
with the new one supplied in Kit 255.