Teledyne 6200T - Sulfides Analyzer - Manual (Page 280)

Troubleshooting Model 6200T Total Sulfur Analyzer
280 Teledyne Analytical Instruments
You will need the following tools:
 Nutdriver, 5 /
16
 Nutdriver, 11 /
32
 Diagonal Cutter
 Philips head Screwdriver #2
You must obtain the following replacement parts kit from TAI:
 KIT000255 (AKIT, Retrofit, M501TS, TC Type S RPLCMN)
Once you have the right tools and parts, replace the thermocouple as follows:
1. Ensure power is removed from the M501TS Converter. If the Converter has
been operational you will need to wait for 2 hours for the Converter oven to cool
before continuing with the replacement of the thermocouple.
2. Remove the cover from the Converter chassis.
3. Unscrew the (4) nuts that secure the front panel to the chassis. They are located
just behind the Front Panel along the top.
4. Lower the Front Panel to gain easier access to the end of the quartz tube.
5. Unscrew the (3) nuts that secure the inner cover protecting the Heater Block and
quartz tube. Remove this cover.
6. Cut the tie-wrap that secures the thermocouple to the fitting at the end of the
quartz tube.
7. Loosen the Teflon fitting at the end of the quartz tube taking care not to put any
stress on the tube, and slide the fitting off the tube.
8. Remove the thermocouple.
9. Disconnect the thermocouple wires from the Temperature Controller.
Figure 12-20: Thermocouple
10. In preparation for installing the new thermocouple, look into the end of the
Heater Block. You will see that there is an indentation (cavity) in the fat part of
the quartz tube. This is where the thermocouple you are installing will reside.
Refer to Figure .