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APPENDIX C – EXTERNAL VALVE SEQUENCER
The Picarro valve sequencer window appears as in Figure 1 below:
Figure 1 - Layout of the Picarro valve sequencer
Introduction
The Picarro analyzer can control two types of valves:
• Solenoid valve(s): DC voltage powered valve with normally open (NO) and
normally closed (NC) positions. These can be either 2-way or 3-way
valves.
• Rotary Selector valve: digitally controlled valve used to send selected flow
from one of many inputs (up to 32) into the analyzer
Both types of valves can be simultaneously controlled through a common
software interface called the 'External Valve Sequencer' which is available from
the Tools menu in the GUI.
Picarro G2302 Analyzer User's Guide
Rev. B 1/14/11
27
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