The 6890 Series Gas Chromatograph
General warnings
12
Many parts are dangerously hot
Many parts of the GC operate at temperatures high enough to cause serious
burns. These parts include but are not limited to:
• The inlets
•The oven
•The detectors
• The column nuts attaching the column to an injection port or detector
You should always cool these areas of the GC to room temperature before
working on them. They will cool faster if you first set the temperature of the
heated zone to room temperature. Turn the zone off after it has reached the
setpoint. If you must perform maintenance on hot parts, use a wrench and wear
gloves. Whenever possible, cool the part of the instrument that you will be
maintaining before you begin working on it.
WARNING Be careful when working behind the instrument. During cooldown cycles, the
GC emits hot exhaust which can cause burns.
The insulation around the inlets, detectors, valve box, and the insulation cups
is made of refractory ceramic fibers. To avoid inhaling fiber particles, we
recommend the following safety procedures: ventilate your work area; wear
long sleeves, gloves, safety glasses, and a disposable dust/mist respirator;
dispose of insulation in a sealed plastic bag; wash your hands with mild soap
and cold water after handling the insulation.
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