Operating Basics 2
Operating Guide 25
To Start Up the GC
Successful operation begins with a properly installed and
maintained GC. The utility requirements for gases, power
supply, venting of hazardous chemicals, and required
operational clearances around the GC are detailed in the
Site Preparation Checklist and Site Preparation Guide.
1 Check gas source pressures. For required pressures, see
the Site Preparation Guide.
2 Turn on the carrier and detector gases at their sources
and open the local shutoff valves.
3 Turn on the GC power. Wait for Power on successful to be
displayed.
4 If removed, install the column.
5 Check that the column fittings are leak free.
6 Load the analytical method.
7 Wait for the detector(s) to stabilize before acquiring data.
The time required for the detector to reach a stable
condition depends on whether the detector was turned off
or its temperature was reduced while the detector
remained powered.
Detector type Stabilization time starting
from a reduced temperature
(hours)
Stabilization time starting
from detector off
(hours)
FID 2 4
TCD 2 4
uECD 4 18 to 24
FPD 2 12
NPD 4 18 to 24
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