93
The Column Oven
Fast chromatography
Fast chromatography
The 6890 GC has several options for increasing throughput and cycle time. These
are the fast heating oven (optional in some countries), the oven insert for fast
chromatography (see page 94), and cryogenic cooling (see page 97).
Fast-heating oven
The fast-heating oven requires the following:
• A GC equipped with a fast-heating oven. A fast heating oven is standard with
most 200–240 V power option GCs. A GC ordered for the United States, Cana-
da, Switzerland, China, and Australia must be ordered with the fast heating
oven option, or must be converted (contact Agilent service).
• The electric service must be capable of providing ≥ 200 V at ≥ 15 amperes.
• In the United States, the electric service must be 240 V.
Configuring the oven
GCs ordered with the fast-heating oven will be properly configured from the
factory. If you convert a regular oven to a fast-heating oven, and have the correct
electric service installed, you will need to configure the GC to use the new oven
heater properly.
WARNING Do not perform this procedure unless your GC meets all of the criteria listed
under “Fast-heating oven” above. Conversion from a regular to fast-heating oven
(and the reverse) requires replacement of the oven heater, internal fuses, and
power circuitry by qualified Agilent personnel. Changing the oven configuration
at the keypad without making the proper hardware changes can damage your
instrument and may present a fire hazard.
1. Press [Config], scroll to [Instrument], and press [Enter].
2. To change the oven type, press [.][.], then [Mode/Type].
3. Select the correct oven type (fast or regular), then press [Enter].
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