Table of Contents
INTRODUCTION ................................................................................................................................................................... 1
Contacting Envent Engineering Ltd ......................................................................................................................................... 1
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Canada Office: (Main) ........................................................................................................................................... 1
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USA Office: ............................................................................................................................................................ 1
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China Office: ......................................................................................................................................................... 2
Warranty & Liability Statements ............................................................................................................................................. 2
Limitation of Warranty ............................................................................................................................................................ 2
Disclaimer ................................................................................................................................................................................ 3
Key Symbols ............................................................................................................................................................................. 3
Warnings & Cautions ............................................................................................................................................................... 3
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Warning & Cautions for 330S & 331S H
2
S Analyzers ............................................................................................ 4
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Warning & Cautions for 330S Analyzer Only ........................................................................................................ 5
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Warning & Cautions for 331S H
2
S Analyzer Only .................................................................................................. 5
Analyzer Specifications ............................................................................................................................................................ 6
PRINCIPLE OF OPERATION ................................................................................................................................................... 8
Physical Reaction ..................................................................................................................................................................... 8
Analysis Cycles ......................................................................................................................................................................... 9
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Dual Sensor Analysis cycle (SDS): ........................................................................................................................ 11
INSTALLATION ................................................................................................................................................................... 12
Installation Requirements ..................................................................................................................................................... 12
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Electrical Requirements ...................................................................................................................................... 12
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Location for the System ...................................................................................................................................... 12
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Space Requirements ........................................................................................................................................... 13
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Sample Point Selection ....................................................................................................................................... 14
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Sample inlet & sample sweep ............................................................................................................................. 14
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Vent line .............................................................................................................................................................. 14
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Sample Volume & Flow Rate .............................................................................................................................. 15
Installation of Analyzer Components .................................................................................................................................... 16
Analog Outputs ...................................................................................................................................................................... 16
Sample Chamber ................................................................................................................................................................... 18
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Sensor Block ........................................................................................................................................................ 18
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Window & Gasket ............................................................................................................................................... 18
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Aperture Strip ..................................................................................................................................................... 19
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Humidifier Unit ................................................................................................................................................... 19
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Eductor Block ...................................................................................................................................................... 21
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