Changing The H 2 S  So - Teledyne T101 Operation Manual

Teledyne ML – T101 Operation Manual
8.3.5.3. Changing the H
The converter operates at 315º C. Severe burns can result if the
assembly is not allowed to cool. Do not handle the assembly until it is at
Converter Efficiency = 490.3 ÷ 499.1
Converter Efficiency = 0.982 (98.2%)
10. It is recommended that the H
replaced if the converter efficiency falls below 96% or whatever efficiency
rating is specified by local regulatory requirements.
S  SO
2 2
S  SO
The H converter is located in the center of the instrument, see Figure 3-5 for
2 2
location, and Figure 8-3 for the assembly. The converter is designed for replacement of
the cartridge only; the heater with built-in thermocouple can be reused.
Turn off the analyzer power, remove the cover and allow the converter to
•
cool.
Remove the top lid of the converter as well as the top layers of the
•
insulation until the converter cartridge can be seen.
room temperature. This may take several hours.
Remove the tube fittings from the converter.
•
Disconnect the power and the thermocouple of the converter. Unscrew
•
the grounding clamp of the power leads with a Phillips-head screw driver.
Remove the converter assembly (cartridge and band heater) from the
•
can. Make a note of the orientation of the tubes relative to the heater
cartridge.
• Unscrew the band heater and loosen it, take out the old converter
cartridge.
S  SO
2 2
Converter Catalyst Material
CAUTION
Instrument Maintenance
converter catalyst material be
207