TA I
NSTRUMENTS
TGA 2950 5–1
CHAPTER 5: Maintenance and
Diagnostics
Overview..................................................... 5-3
Routine Maintenance .................................. 5-4
Inspection ............................................. 5-4
Cleaning the Instrument ....................... 5-4
Cleaning the Furnace Housing .............5-5
TGA Standard Furnace Only ......... 5-5
Heat Exchanger .................................... 5-6
Maintaining Heat
Exchanger Coolant ........................ 5-6
Draining and Refilling
the Water Reservoir ....................... 5-6
Replacing the Thermocouple ...................... 5-9
Removing and
Reinstalling the Furnace ........................... 5-11
Furnace Removal ............................... 5-11
Furnace Replacement .........................5-14
Diagnosing Power Problems..................... 5-16
Fuses................................................... 5-16
Power Failures.................................... 5-18
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