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Part 1. Electronic Pneumatic Control (EPC) Flow and Pressure Control
Detectors
Figure 10 Internal/external plumbing: FPD with EPC
For more details, see the Detectors volume.
Gas configuration
The GC assumes that hydrogen is plumbed to the FID, FPD and NPD H
2
locations
and that air is plumbed to the air locations (see the labels on the EPC gas
modules).
Some locations allow a choice of gases. In these cases (mostly makeup gases),
you must identify the gas using the [Config] process.
Makeup gas
You can select either constant makeup flow or constant (makeup + column)
flow. See the Detectors volume for details, since they vary with the detector type.
Vent
Emission zone
Window
Wavelength
filter
Air
H
2
Makeup
Filter
frits
Proportional
valves
Pressure
sensors
Restrictors
Shield