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Jun 2001
Before Servicing the Instrument
Agilent 6890 Gas Chromatograph Service Manual
110 Safety
Before servicing the various components of the 6890 GC, observe the following
safety precautions.
Cautions
Follow the precautions below when servicing the instrument to avoid data
loss or damage to the instrument.
Printed circuit boards
Whe n st orin g or in be tween han dlin g of P CB s (Pr in te d Cir cu it B oa rds ), al ways
place them in static control envelopes or enclosures.
Always make sure you are properly grounded (e.g., wearing an ESD strap)
before handling electro–static sensitive components such as printed circuit
boards.
Voltage carrying components
When disconnecting plugs, pull on the plug, not its wires. Pulling on the wires
may cause breakage.
Columns
Do not shut off column flow when the oven temperature is high or you may
damage the column.
TCD Detector
Do not turn off carrier flow to a TCD detector while the detector is still on or
you risk damaging the filament.
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