Varian 450-GC, User Manual

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Detectors – Pulsed Flame Photometric Detector (PFPD) Detectors – Pulsed Flame Photometric Detector (PFPD)
Page: Page: 364 364 User User Manual Manual 450-GC 450-GC Varian, Varian, Inc. Inc.
PFPD Gas Flow Diagram with PFPD Gas Flow Diagram with EFC15 EFC15
Refer to the following figure when adjusting the flow Refer to the following figure when adjusting the flow rates of the gases to rates of the gases to
the PFPD. the PFPD.
Item Description Item Description
1 1 Air1 Air1 mass mass flow flow controller controller
2 2 Air2 Air2 mass mass flow flow controller controller
3 3 Center Center flow flow tee tee
4 4 Hydrogen Hydrogen mass mass flow flow controller controller
5 5 Split Split valve valve
6 6 Wall Wall flow flow (H (H
2 2
+ Air1 + Air2) + Air1 + Air2)
7 7 Center Center flow flow (H (H
2 2
+ Air1) + Air1)
8 8 Igniter Igniter cap cap