Detector Maintenance Method - Agilent Technologies 8355 Sulfur User Manual

Detector Maintenance Method

SCD and NCD User Manual
It is good practice to create a maintenance method for the GC
that prepares the GC and detector for maintenance. Load this
method before performing maintenance.
A maintenance method for the SCD should do the following:
1
Turn off the heater and burner to allow them to cool.
2
Turn off all hydrogen flows.
3
Leave on the oxidizer and ozone supply gases.
4
Turn off the ozone generator.
5
Leave on the vacuum pump.
6
Keep (helium) carrier gas flowing.
7
Set the oven to 30 °C to minimize column bleed.
8
Cool any other parts of the GC (oven, inlet, and so forth) as
needed.
A maintenance method for the NCD should do the following:
1
Turn off the heater and burner to allow them to cool.
2
Turn off the hydrogen flow.
3
Leave on the oxidizer and ozone supply gases.
4
Turn off the ozone generator.
5
Leave on the vacuum pump.
6
Keep (helium) carrier gas flowing.
7
Set the oven to 30 °C to minimize column bleed.
8
Cool any other parts of the GC (oven, inlet, and so forth) as
needed.
Allow heated zones to cool to < 40 °C for safe handling.
5
Maintenance
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