Table of Contents
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AQUATRAN Model 3/40 Operator's Manual
Table of Contents
About This Manual ........................................................................................................................................ iii
Safety Information ........................................................................................................................................ iv
Chapter 1: Introduction.............................................................................................................................. 1-1
Features ............................................................................................................................................... 1-2
Measuring a Water Vapor Transmission Rate ...................................................................................... 1-3
Permeation Test Overview ................................................................................................................... 1-6
Individual Zero Phase ..................................................................................................................... 1-6
Conditioning the Sample ................................................................................................................ 1-6
ReZero State .................................................................................................................................. 1-6
Cell Examination State ................................................................................................................... 1-6
Bypass State .................................................................................................................................. 1-6
Test Completion ............................................................................................................................. 1-6
Report Generation .......................................................................................................................... 1-6
Chapter 2: Setting Up ............................................................................................................................... 2-1
Unpacking the System ......................................................................................................................... 2-1
Preparing for Installation ...................................................................................................................... 2-1
Front Panel Parts and Controls ............................................................................................................ 2-2
Back Panel Parts and Controls ............................................................................................................. 2-3
Inner Chamber Parts and Controls ....................................................................................................... 2-5
Carrier Gas (Nitrogen) .......................................................................................................................... 2-6
Compressed Air Supply ........................................................................................................................ 2-6
Gas Distribution System ....................................................................................................................... 2-6
Connecting the Gas Lines .................................................................................................................... 2-7
Connecting the Compressed Air Supply ......................................................................................... 2-8
Connecting the Test Gas Water Supply ............................................................................................... 2-8
Setting the Gas Supply Pressures ........................................................................................................ 2-9
System Outgassing ............................................................................................................................ 2-10
Chapter 3: Preparing for a Test ................................................................................................................. 3-1
Testing Basics ...................................................................................................................................... 3-1
How Barrier Properties Affect Testing .................................................................................................. 3-1
Testing Very Good Barriers ............................................................................................................ 3-1
Testing Very Poor Barriers ............................................................................................................. 3-1
Testing Mixed Barriers .................................................................................................................... 3-2
Testing Moisture Sensitive Barriers ................................................................................................ 3-2
Developing Test Methods ..................................................................................................................... 3-2
The Examination Time .................................................................................................................... 3-2
The ReZero Frequency .................................................................................................................. 3-2
Individual Zero Processing ............................................................................................................. 3-3
Purging the Sample ........................................................................................................................ 3-3
Conditioning the Sample ................................................................................................................ 3-5
Using the Reference Check Function ............................................................................................. 3-6
Determining When to Stop a Test ................................................................................................... 3-6
Choosing a Test Method ...................................................................................................................... 3-6
The Auto Test Method .................................................................................................................... 3-6
The Advanced Test Method............................................................................................................ 3-6
Saved Test Methods ...................................................................................................................... 3-7
Using Test Sequencing ........................................................................................................................ 3-7
Humidified Environment Testing ........................................................................................................... 3-7
MOCON, Inc.
Revision D
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