Lauper Instruments Mocon Ametek OX-TRAN 2/22 User manual

OX-TRAN Model 2/22 Operator’s Manual About This Manual
MOCON, Inc. Revision R i
Revision R
Part Number 143-195
OX-TRAN®
Model 2/22
Operator’s Manual
Gas-Detection
Lauper Instruments AG
Irisweg 16B
CH-3280 Murten
Tel. [phone]
[email protected]
www.lauper-instruments.ch

Safety Information OX-TRAN Model 2/22 Operator’s Manual
ii Revision R MOCON, Inc.
Trademarks & Patents
MOCON, COULOX, and OX-TRAN are registered trademarks of Mocon, Inc.
For information on applicable patents see:
https://www.ametekmocon.com/aboutus/legal/intellectualproperty
Copyright© 2021 MOCON, Inc. All rights reserved.

OX-TRAN Model 2/22 Operator’s Manual About This Manual
MOCON, Inc. Revision R iii
About This Manual
This manual explains how to set up and use the OX-TRAN Model 2/22 Oxygen Transmission Rate System.
This manual is designed for viewing electronically. Most references to other sections or chapters in this
document are hyperlinks which can be used to navigate to the referenced section.
Please use the following guide to get started with the system.
If You Want To Set Up the OX-TRAN Model 2/22
1. Prepare your test site.
See Appendix A “Site Preparation Instructions” starting on page A-1 in this manual.
2. Install the OX-TRAN components.
See Chapter 2 “Setting Up” starting on page 2-1 in this manual.
If You Want Some Background on How the System Works:
1. Get an overview of the system.
See Chapter 1 “Introduction” on page 1-1 in this manual.
2. Learn how the OX-TRAN measures oxygen transmission.
See Appendix D “Theory of Operation” on page D-1 in this manual.
3. Learn about the software.
See Chapter 4 “Using the Instrument Software” starting on page 4-1 in this manual.
If You Want To Get Started Measuring Oxygen Transmission Rate:
See Chapter 3 “Preparing for a Test” beginning on page 3-1, Chapter 5 “Testing Flat Films”
on page 5-1 and Chapter 6 “Testing Packages” on page 6-1.
If You Have Problems Operating the System:
1. If an error message appears on instrument screen see Chapter 8 “Troubleshooting”
beginning on page 8-1 in this manual.
2. If no error message appears but you have other problems, see Chapter 8 “Troubleshooting”
beginning on page 8-1 in this manual.
SERVICE NOTE:
Please do not hesitate to call MOCON in the USA at [phone]. We want you to receive the
best in product support services.

Safety Information OX-TRAN Model 2/22 Operator’s Manual
iv Revision R MOCON, Inc.
Safety Information
Be sure to read and understand this section and all other applicable chapters of the Operator's Manual and all
on-product safety signs before setting up, operating, and maintaining this analyzer.
Safety signs appear in this manual and on the analyzer. All safety signs are identified by the words WARNING and
CAUTION. These words signify the following:
•WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or
serious personal injury.
•CAUTION indicates a potentially hazardous situation which, if not avoided, may result in moderate
personal injury and/or possible damage to the analyzer and its components.
To avoid personal injury and equipment damage, observe the following precautions:
Installation Precautions
•Use appropriate precautions when lifting or moving the instrument. A two-person lift is recommended.
•The maximum pressure applied to the instrument from the Carrier and Test Gas tanks must not
exceed 29 psi (2 bar), or damage to the instrument will occur.
Operating Precautions
•To avoid plumbing contamination use only specified gas types at recommended operating pressures.
•Use only HPLC-grade water in the humidity generators.
•Use care to avoid splashing the RH sensor with any salt solution. The RH sensors can be irreparably
damaged by direct contact with salt solutions.
•Handle the RH probe carefully. The sensor housed in the probe is easily damaged.
•Do not expose the RH probe to an environment with RH greater than 90% RH.
Maintenance and Service Precautions
WARNING! HAZARDOUS VOLTAGES ARE PRESENT INSIDE THIS INSTRUMENT. SERVICE
SHOULD BE PERFORMED BY QUALIFIED PERSONNEL ONLY.
AVERTISSMENT: CET INSTRUMENT PRESENTE DES NIVEAUX DANGEREUX DE TENSION.
L'ENTRETIEN DOIT ETRE EFFECTUE PAR UN PERSONNEL QUALIFIE
UNIQUEMENT.
WARNING! Protection may be impaired if this device is not used in the manner specified.
•Maintenance and service should only be performed by qualified personnel.
•Make sure the instrument is powered OFF and unplugged from the power source before removing the
covers to perform any internal maintenance or service. Failure to do so can result in electrical shock,
which can cause injury or death.
•Failure to use proper safety equipment when mixing salt solution can result in frostbite or burn injuries.
Salt solutions should be prepared only by qualified people with proper safety equipment.

OX-TRAN Model 2/22 Operator’s Manual Table of Contents
MOCON, Inc. Revision R v
Table of Contents
About This Manual ........................................................................................................................................iii
Safety Information........................................................................................................................................ iv
Chapter 1: Introduction..............................................................................................................................1-1
Features...............................................................................................................................................1-2
Permeation Test Overview ...................................................................................................................1-3
Individual Zero Phase.....................................................................................................................1-3
Conditioning the Sample ................................................................................................................1-3
ReZero State..................................................................................................................................1-3
Cell Examination State ...................................................................................................................1-3
Bypass State ..................................................................................................................................1-3
Test Completion .............................................................................................................................1-3
Report Generation..........................................................................................................................1-3
Measuring an Oxygen Transmission Rate............................................................................................1-4
Testing Films and Packages ................................................................................................................1-4
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.............................................................................................................2-4
Test Gas (Oxygen)...............................................................................................................................2-5
Carrier Gas (Nitrogen)..........................................................................................................................2-5
Gas Distribution Systems .....................................................................................................................2-5
Connecting the Gas Lines ....................................................................................................................2-6
Setting the Gas Supply Pressures........................................................................................................2-8
System Outgassing ..............................................................................................................................2-8
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 for your Films and Packages.......................................................................3-2
The Examination Time....................................................................................................................3-2
The ReZero Frequency ..................................................................................................................3-2
The Sample Conditioning Time ......................................................................................................3-3
Individual Zero Processing .............................................................................................................3-3
Determining When to Stop a Test...................................................................................................3-4
Choosing a Test Method ......................................................................................................................3-4
The Auto Test Method ....................................................................................................................3-4
The Advanced Test Method............................................................................................................3-4
Saved Test Methods ......................................................................................................................3-4
Using Test Sequencing ........................................................................................................................3-4
Chapter 4: Using the Instrument Software.................................................................................................4-1
Software Features................................................................................................................................4-1
Instrument Software Structure and Organization..................................................................................4-2

Table of Contents OX-TRAN Model 2/22 Operator’s Manual
vi Revision R MOCON, Inc.
Chapter 5: Testing Flat Film Samples .......................................................................................................5-1
Testing Suggestions.............................................................................................................................5-1
Preparing for a Film Test......................................................................................................................5-2
Sample Size.........................................................................................................................................5-2
Using Masks ........................................................................................................................................5-2
Orienting the Sample ...........................................................................................................................5-3
Humidified Testing ...............................................................................................................................5-4
Filling the Humidifiers...........................................................................................................................5-4
Filling the Humidifiers during a Test .....................................................................................................5-4
Mounting a Sample in the Test Cell......................................................................................................5-6
Loading and Unloading the Test Cell....................................................................................................5-7
Setting Up and Starting a Film Test......................................................................................................5-8
Monitoring and Controlling a Film Test .................................................................................................5-8
Chapter 6: Testing Packages....................................................................................................................6-1
Testing Suggestions.............................................................................................................................6-1
Preparing the Instrument for a Package Test .......................................................................................6-2
Package Testing Methods....................................................................................................................6-3
Testing using Ambient Conditions ..................................................................................................6-3
Package Conditioning.....................................................................................................................6-3
Testing using an Environmental Chamber......................................................................................6-3
Package Mounting Methods.................................................................................................................6-4
Mounting Bottles, Cups and Trays using a Package Plate..............................................................6-4
Mounting Pouches and Bags..........................................................................................................6-5
Supplying a Test Gas...........................................................................................................................6-6
Using Ambient Air for the Test Gas ................................................................................................6-6
Using a Compressed Gas for the Test Gas ....................................................................................6-6
Setting Up and Starting a Package Test...............................................................................................6-8
Monitoring and Controlling a Package Test ..........................................................................................6-8
Chapter 7: Maintenance............................................................................................................................7-1
Cleaning the Instrument .......................................................................................................................7-1
Cleaning the Air Filters.........................................................................................................................7-2
Cleaning the Test Cells ........................................................................................................................7-3
Maintaining the Test Cells ....................................................................................................................7-3
Drying Out the Humidifiers ...................................................................................................................7-3
Test Cell Components and Part Numbers ............................................................................................7-4
Maintaining the Oxygen (Coulox) Sensor .............................................................................................7-5
Verifying Oxygen Sensor (Coulox) Performance ............................................................................7-5
Replacing the Coulox Sensor .........................................................................................................7-5
Maximizing Coulox Sensor Life ......................................................................................................7-5
System Standby...................................................................................................................................7-6
System Shutdown for Storage or Repair ..............................................................................................7-6
Chapter 8: Troubleshooting.......................................................................................................................8-1
Error Messages and Warnings .............................................................................................................8-1
Troubleshooting Testing Problems .......................................................................................................8-1
Recovering from a Sensor Over-Range Condition................................................................................8-2
Recovering from a Power Failure .........................................................................................................8-2
Chapter 9: Specifications ..........................................................................................................................9-1
Physical Specifications.........................................................................................................................9-1
Environmental Requirements ...............................................................................................................9-1
Electrical Requirements .......................................................................................................................9-1
Gas Supply Requirements ...................................................................................................................9-2

OX-TRAN Model 2/22 Operator’s Manual Table of Contents
MOCON, Inc. Revision R vii
Environmental Chamber Specifications................................................................................................9-2
Operational Capabilities .......................................................................................................................9-3
Appendix A: Site Preparation Instructions ................................................................................................ A-1
Appendix B: Spare Parts.......................................................................................................................... B-1
Appendix C: Warranty and Service Policies ............................................................................................. C-1
Appendix D: Theory of Operation............................................................................................................. D-1
How the Oxygen Sensor Works .......................................................................................................... D-1
How the Transmission Rate is measured ............................................................................................ D-1
Factors that Affect the Transmission Rate of a Barrier Material........................................................... D-2
Barrier Temperature ...................................................................................................................... D-2
Test Gas Driving Force.................................................................................................................. D-2
Barometric Pressure...................................................................................................................... D-2
Relative Humidity .......................................................................................................................... D-2
How a Humidified Test Gas is Generated............................................................................................ D-3
How the ReZero Cell Works................................................................................................................ D-3
How the Auto-Test Method Works....................................................................................................... D-4
How Sequential Testing Works ........................................................................................................... D-4
Appendix E: Electrical and Plumbing Diagrams ....................................................................................... E-1
Appendix F: Preparing RH Calibration Standards .....................................................................................F-7
RH Calibration Equipment....................................................................................................................F-7
Choosing a Salt Solution ......................................................................................................................F-7
Preparing a High Level Calibration Standard........................................................................................F-8
Preparing a Low Level Calibration Standard ........................................................................................F-8
Preparing a Saturated Salt Solution .....................................................................................................F-8
Appendix G: Permeant Sensor Adjustment .............................................................................................. G-1
Permeant Sensor Performance Check ................................................................................................ G-1
Performing a Permeant Sensor Adjustment ........................................................................................ G-1
Permeant Sensor Adjustment Test Setup ........................................................................................... G-2
Appendix H: Compliance.......................................................................................................................... H-1

Table of Contents OX-TRAN Model 2/22 Operator’s Manual
viii Revision R MOCON, Inc.
Figures
Figure 1-1: OX-TRAN Model 2/22 System ................................................................................................1-1
Figure 1-2: The OX-TRAN Model 2/22 Test Cell .......................................................................................1-4
Figure 2-1: Front Panel Parts and Controls ...............................................................................................2-2
Figure 2-2: Front Panel Parts and Controls ...............................................................................................2-3
Figure 2-3: Back Panel Parts and Controls ...............................................................................................2-4
Figure 2-4: System Plumbing Connection Diagram...................................................................................2-5
Figure 5-1: Humidifier Fill Port and Controls..............................................................................................5-5
Figure 5-2: Mounting a Film Sample .........................................................................................................5-6
Figure 5-3: Loading the Test Cell ..............................................................................................................5-7
Figure 6-1: Installing the Package Adapter Cell ........................................................................................6-2
Figure 6-2: Using a Package Mounting Plate ............................................................................................6-4
Figure 6-3: Pouches and Bags - Bottom Mount.........................................................................................6-5
Figure 6-4: Pouches and Bags - Top Mount..............................................................................................6-5
Figure 6-5: Supplying a Test Gas..............................................................................................................6-7
Figure 7-1: The Air Filter ...........................................................................................................................7-2
Figure 7-2: Test Cell Components ............................................................................................................7-4
Figure E-1: Plumbing Diagram Page 1................................................................................................... E-2
Figure E-2: Plumbing Diagram Page 2................................................................................................... E-3
Figure E-3: Electrical Diagram Page 1................................................................................................ E-4
Figure E-4: Electrical Diagram Page 2 ................................................................................................... E-5
Figure E-5: Electrical Diagram Page 3................................................................................................ E-6
Tables
Table 2.1: Front Panel Parts and Controls ................................................................................................2-3
Table 2.2: Back Panel Parts and Controls.................................................................................................2-4
Table 5.1: Humidifier Port and Controls ....................................................................................................5-5
Table 7.1: Test Cell Components..............................................................................................................7-4
Table 9.1: Physical Specifications.............................................................................................................9-1
Table 9.2: Environmental Requirements ...................................................................................................9-1
Table 9.3: Electrical Specifications............................................................................................................9-1
Table 9.4: Gas Supply Specifications........................................................................................................9-2
Table 9.5: Environmental Chamber Specifications ....................................................................................9-2
Table 9.6: Operational Capabilities - Ox-Tran 2/22 Model H .....................................................................9-3
Table 9.7: Operational Capabilities - Ox-Tran 2/22 Model L......................................................................9-3
Table 9.8: Operational Capabilities - Ox-Tran 2/22 Model 10X..................................................................9-4
Table F.1: Salt Solution Humidity Standards in Percent RH ......................................................................F-7

OX-TRAN Model 2/22 Operator’s Manual Introduction
MOCON, Inc. Revision R 1-1
Chapter 1:Introduction
This chapter provides a brief overview of the OX-TRAN Model 2/22 Oxygen Transmission Rate System.
Read this chapter to get an overview of:
•The features of the OX-TRAN Model 2/22 system
•A summary of basic steps in a permeation test
•A summary of how a Oxygen Transmission Rate measurement is performed
•A summary of how Film and Package testing is performed
Figure 1-1: OX-TRAN Model 2/22 System

Introduction OX-TRAN Model 2/22 Operator’s Manual
1-2 Revision R MOCON, Inc.
Features
The following features of the OX-TRAN Model 2/22 Oxygen Transmission Rate System make it very
versatile and easy to use:
•Fully automatic (Hands Off) testing.
•Reduced test times (less total time to achieve a Test Result).*
•Improved Repeatability specification (2.5 times improvement over OX-TRAN 2/21 H).
•Enhanced patented, humidified and low maintenance Coulox oxygen sensor.
•Removable test cell for faster film mounting.
•Pneumatically clamped test cells.
•TruSeal™ test cells for increased performance.
•Automatic control of the Test Cell Temperature.
•Automatic control of Pressure, Flow and RH.
•Automatic Barometric Pressure compensation.
•Package Testing Adapter (Optional).
•Carrier Purge feature for package testing.
•Fast changeover from Wet to Dry testing.
•Advanced oxygen sensor over-range protection.
•Advanced Gas Saver function reduces gas consumption.
•Advanced automatic testing features simplify testing Barriers with unknown properties.
•Automatic Test Sequencing (perform a sequence of tests at different RH and temperatures).
•Automatically save and print Test Results.
•Internal storage of at least 100 Test Results.
•Integrated and intuitive touch screen operator interface.
•Remote Access and Control (requires optional Perm-Net Light software).
•Standard Ethernet port (100T).
•Dual USB 2.0 ports (for connection of keyboard, mouse or memory devices).
*Compared to the OX-TRAN Model 2/21 series