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Related Manuals for Lauper Instruments Mocon Ametek OX-TRAN 2/22
Summary of Contents for Lauper Instruments Mocon Ametek OX-TRAN 2/22
- Page 1 OX-TRAN Model 2/22 Operator’s Manual About This Manual OX-TRAN ® Model 2/22 Operator’s Manual Revision R Lauper Instruments AG Gas-Detection Irisweg 16B CH-3280 Murten Tel. +41 26 672 30 50 info@lauper-instruments.ch www.lauper-instruments.ch Part Number 143-195 MOCON, Inc. Revision R...
- Page 2 Safety Information OX-TRAN Model 2/22 Operator’s Manual 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. Revision R MOCON, Inc.
- Page 3 OX-TRAN Model 2/22 Operator’s Manual About This Manual 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.
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Page 4: Safety Information
Safety Information OX-TRAN Model 2/22 Operator’s Manual 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. -
Page 5: Table Of Contents
OX-TRAN Model 2/22 Operator’s Manual Table of Contents 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 .......................... - Page 6 Table of Contents OX-TRAN Model 2/22 Operator’s Manual 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 ..........................
- Page 7 OX-TRAN Model 2/22 Operator’s Manual Table of Contents 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 ......................
- Page 8 Table of Contents OX-TRAN Model 2/22 Operator’s Manual 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 ....................
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Page 9: Chapter 1: Introduction
OX-TRAN Model 2/22 Operator’s Manual Introduction 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 •... -
Page 10: Features
Introduction OX-TRAN Model 2/22 Operator’s Manual 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).* •... -
Page 11: Permeation Test Overview
OX-TRAN Model 2/22 Operator’s Manual Introduction Permeation Test Overview A “Permeation Test” consists of up to two phases that are performed using a Test Cell. The “Cell” may contain a flat film sample or be connected to a package fixture. The Test Phase (always present) is used to measure the transmission rate of the test sample. -
Page 12: Measuring An Oxygen Transmission Rate
Introduction OX-TRAN Model 2/22 Operator’s Manual Measuring an Oxygen Transmission Rate To make an accurate transmission rate measurement a known concentration Test Gas (usually 100% Oxygen) is applied to one side of the barrier material to be tested and the other side is swept with an oxygen free Carrier Gas (usually a nitrogen/hydrogen mix). -
Page 13: Chapter 2: Setting Up
OX-TRAN Model 2/22 Operator’s Manual Setting Up Chapter 2: Setting Up This chapter provides information on how to set up an OX-TRAN Model 2/22 and prepare it for use. Read this chapter to learn about: Unpacking the System • • Preparing for System Installation •... -
Page 14: Front Panel Parts And Controls
Setting Up OX-TRAN Model 2/22 Operator’s Manual Front Panel Parts and Controls The names and locations of the parts and controls located on the front of the instrument are shown in Figure 2-1, Figure 2-2 and Table 2.1. Figure 2-1: Front Panel Parts and Controls Revision R MOCON, Inc. -
Page 15: Figure 2-2: Front Panel Parts And Controls
OX-TRAN Model 2/22 Operator’s Manual Setting Up Figure 2-2: Front Panel Parts and Controls Item Name Description Cell B Load/Unload button This button is used to Load and Unload the Test Cell Cell B Status Indicator This indicator is used to show the Status of Cell B Cell A Load/Unload button This button is used to Load and Unload the Test Cell Cell A Status Indicator... -
Page 16: Back Panel Parts And Controls
Setting Up OX-TRAN Model 2/22 Operator’s Manual Back Panel Parts and Controls The names and locations of the parts and controls located on the back of the instrument are shown in Figure 2-3 and Table 2.2. Figure 2-3: Back Panel Parts and Controls Item Name Description... -
Page 17: Test Gas (Oxygen)
OX-TRAN Model 2/22 Operator’s Manual Setting Up Test Gas (Oxygen) The OX-TRAN Model 2/22 requires an oxygen test gas with a purity of at least 99.9%. The regulator (on the compressed gas cylinder) must be approved for oxygen use. The optional Regulator Assembly contains an approved Oxygen Regulator. -
Page 18: Connecting The Gas Lines
Setting Up OX-TRAN Model 2/22 Operator’s Manual Connecting the Gas Lines The OX-TRAN Model 2/22 has two gas inlets, one for connecting the Test Gas (oxygen) supply and the other for connecting the Carrier Gas (nitrogen/hydrogen) supply. These compression fittings are intended for use with 1/8”... - Page 19 OX-TRAN Model 2/22 Operator’s Manual Setting Up Follow these steps to connect the Test Gas supply lines: Remove the brass plug from the Test Gas fitting on the instrument back panel. Save the plug as it will be needed later. Cut a piece of tubing approximately 3 inches in length (33 cm).
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Page 20: Setting The Gas Supply Pressures
Setting Up OX-TRAN Model 2/22 Operator’s Manual Setting the Gas Supply Pressures Set the Gas Supply Pressures as follows: Set the Carrier Gas cylinder or main line regulator pressure to 35 psi. Set the Test Gas cylinder or main line regulator pressure to 35 psi. Set the pressure on the Carrier Gas regulator-tee so that the gauge reads 25 psi. -
Page 21: Chapter 3: Preparing For A Test
OX-TRAN Model 2/22 Operator’s Manual Preparing for a Test Chapter 3: Preparing for a Test This chapter provides information on how to prepare for a permeation test. Read this chapter to learn about: Testing Basics • • How Barrier Properties Affect Testing •... -
Page 22: Testing Mixed Barriers
Preparing for a Test OX-TRAN Model 2/22 Operator’s Manual Testing Mixed Barriers Simultaneously testing barriers with widely divergent transmission rates is not recommended. The data for both samples may not be accurate when there is a large difference in the two transmission rates. If during a test there is a large difference in the transmission rates, set one cell to Idle and continue testing the other one. -
Page 23: The Sample Conditioning Time
OX-TRAN Model 2/22 Operator’s Manual Preparing for a Test The Sample Conditioning Time When you condition a sample in the test cell, carrier gas and test gases are routed to the test cell as they are during testing. However, the carrier gas is not routed to the Coulox sensor. This conditioning period allows a sample barrier to acclimate to the conditions within the test cell. -
Page 24: Determining When To Stop A Test
Preparing for a Test OX-TRAN Model 2/22 Operator’s Manual Determining When to Stop a Test The setting used for the “Test Mode” parameter determines how and when a transmission rate test is stopped (Test Completion). Four different methods of stopping a transmission rate test are provided. The four methods are: “Continuous”, “Standard”, “Convergence By Cycles”... -
Page 25: Chapter 4: Using The Instrument Software
OX-TRAN Model 2/22 Operator’s Manual Using the Instrument Software Chapter 4: Using the Instrument Software This chapter provides an overview of the software system used to operate the OX-TRAN Model 2/22. Detailed information on how to use the instrument software can be found in the Instrument Help System. Read this chapter to learn about: •... -
Page 26: Instrument Software Structure And Organization
Using the Instrument Software OX-TRAN Model 2/22 Operator’s Manual Instrument Software Structure and Organization All of the User Interface and Instrument Control functions of your permeation system are accessed through the Instrument Software. The User Interface consists of a Title bar, an Icon bar, and the Workspace The “Title”... -
Page 27: Chapter 5: Testing Flat Film Samples
OX-TRAN Model 2/22 Operator’s Manual Testing Flat Films Chapter 5: Testing Flat Film Samples This chapter contains information on how to test flat film samples. Suggestions on how to maximize the accuracy of your results and procedures describing how to perform the test are discussed. Read this chapter to learn about: •... -
Page 28: Preparing For A Film Test
Testing Flat Films OX-TRAN Model 2/22 Operator’s Manual Preparing for a Film Test Before a test can be conducted there are a number of tasks that must be performed: The samples to be tested must be prepared. The samples must be mounted in a Test Cell and Loaded into the instrument. Finally, if the test requires a Generated RH the Humidifiers must be checked and filled if necessary. -
Page 29: Orienting The Sample
OX-TRAN Model 2/22 Operator’s Manual Testing Flat Films Orienting the Sample When mounting test samples, orientation can be important. Edge leakage or oxidation on some materials can affect the test result. It is important to place the “barrier side towards the carrier”. Follow the guidelines below to minimize edge leakage and oxidation effects. -
Page 30: Humidified Testing
Testing Flat Films OX-TRAN Model 2/22 Operator’s Manual Humidified Testing The OX-TRAN Model 2/22 has the capability of generating a controlled RH from 0 to 90% for both the carrier gas and the test gas. Humidified Carrier and Test Gases are created by moving pressurized gas through a humidifier filled with HPLC-grade water and mixing the wet gas with a dry gas in the appropriate ratios. -
Page 31: Figure 5-1: Humidifier Fill Port And Controls
OX-TRAN Model 2/22 Operator’s Manual Testing Flat Films Figure 5-1: Humidifier Fill Port and Controls Item Name Description Water Reservoir - Carrier Gas Window showing the Carrier Gas Reservoir water level Drain/Fill Valve - Carrier Gas The screw used to open & close the Carrier Gas Drain/Fill Valve Reservoir Fill Line The maximum level to which the reservoir should be filled. -
Page 32: Mounting A Sample In The Test Cell
Testing Flat Films OX-TRAN Model 2/22 Operator’s Manual Mounting a Sample in the Test Cell Follow the instructions below to mount a film sample in the Test Cell: Note: For information on cutting and preparing the film samples refer to the sections on “Sample Size”, “Using Masks”... -
Page 33: Loading And Unloading The Test Cell
OX-TRAN Model 2/22 Operator’s Manual Testing Flat Films Loading and Unloading the Test Cell The OX-TRAN Model 2/22 uses a pneumatic system to clamp, unclamp and eject the Test Cell. The Test cell must be manually loaded and unloaded from the instrument. To Unload the Test Cell from the Cell Tray follow the instructions below (refer to Figure 5-3): Press the Cell Load/Unload button on the front of the instrument (see Figure 2-1). -
Page 34: Setting Up And Starting A Film Test
Testing Flat Films OX-TRAN Model 2/22 Operator’s Manual Setting Up and Starting a Film Test After the samples are loaded and the instrument is ready there are a number of test parameters that must be set. There are two types of test parameters, cell parameters and instrument parameters. Cell Parameters are specific to each cell (Sample ID, Sample Thickness). -
Page 35: Chapter 6: Testing Packages
OX-TRAN Model 2/22 Operator’s Manual Testing Packages Chapter 6: Testing Packages This chapter contains information on how to test packages. Suggestions on how to maximize the accuracy of your results and procedures describing how prepare for and perform a package test are discussed. Read this chapter to learn about: •... -
Page 36: Preparing The Instrument For A Package Test
Testing Packages OX-TRAN Model 2/22 Operator’s Manual Preparing the Instrument for a Package Test To accommodate package testing the film Test Cell must be replaced with the optional Package Adapter. The tubing to the package fixture should be connected to the Package adapter before placing it into the Test Cell tray. -
Page 37: Package Testing Methods
OX-TRAN Model 2/22 Operator’s Manual Testing Packages Package Testing Methods There are many different types of packages and most of them can be tested on the OX-TRAN Model 2/22. Most packages can be classified as belonging to one of two categories, rigid packages or flexible packages. To test a package, a fixture must be created that allows a Test Gas to be supplied to one side of the package (usually the outside) and the Carrier Gas to the other. -
Page 38: Package Mounting Methods
Testing Packages OX-TRAN Model 2/22 Operator’s Manual Package Mounting Methods The type of fixture required is usually dependent on the type of package, rigid or flexible. Rigid packages and semi-rigid packages (bottles, trays or cups) can often be mounted on a Package Plate. A “fixture” for Flexible packages is created by sealing all unnecessary openings and then sealing (usually with epoxy) two tubes into the package envelope to allow the Carrier Gas to “sweep”... -
Page 39: Mounting Pouches And Bags
OX-TRAN Model 2/22 Operator’s Manual Testing Packages Mounting Pouches and Bags Flexible packages require a different mounting method than rigid packages. Flexible packages can be mounted with the carrier gas tubes entering the top or bottom of the package. The following instructions, along with Figure 6-3 and Figure 6-4 will assist you in mounting the package. Make two cuts in the package just large enough for the ends of the tubing to slip through. -
Page 40: Supplying A Test Gas
Testing Packages OX-TRAN Model 2/22 Operator’s Manual Supplying a Test Gas To perform a transmission rate measurement a Test Gas must be applied to one side of the barrier material. When testing packages the Test Gas is usually applied to the outside of the package fixture. How the Test Gas is applied to the package fixture is usually dependent on the concentration of the gas that will be used. -
Page 41: Figure 6-5: Supplying A Test Gas
OX-TRAN Model 2/22 Operator’s Manual Testing Packages Figure 6-5: Supplying a Test Gas MOCON, Inc. Revision R... -
Page 42: Setting Up And Starting A Package Test
Testing Packages OX-TRAN Model 2/22 Operator’s Manual Setting Up and Starting a Package Test After the samples are loaded and the instrument is ready there are a number of test parameters that must be set. There are two types of test parameters, cell parameters and instrument parameters. Cell Parameters are specific to each cell (Sample ID, Sample Thickness). -
Page 43: Chapter 7: Maintenance
OX-TRAN Model 2/22 Operator’s Manual Maintenance Chapter 7: Maintenance This contains information on how to clean and maintain the OX-TRAN Model 2/22. Read this chapter to learn about: Cleaning the Instrument • • Cleaning the Test Cell • Cleaning the Air Filters •... -
Page 44: Cleaning The Air Filters
Maintenance OX-TRAN Model 2/22 Operator’s Manual Cleaning the Air Filters Periodically the air filter on the back of the instrument should be removed and cleaned. The recommended interval is twice a year (or whenever there is a significant buildup of dust). If the filter is not cleaned on a regular basis air will not circulate properly through the cooling system. -
Page 45: Cleaning The Test Cells
OX-TRAN Model 2/22 Operator’s Manual Maintenance Cleaning the Test Cells Periodically the test cells should be cleaned to remove any excess buildup of grease. Alcohol can be used to remove any residue from the Apiezon grease. Inspect the gas ports and TrueSeal flush ring and remove any grease that could obstruct the flow of gas. Maintaining the Test Cells Periodically the test cells should be examined and any damaged, deformed, cracked or brittle o-rings replaced. -
Page 46: Test Cell Components And Part Numbers
Maintenance OX-TRAN Model 2/22 Operator’s Manual Test Cell Components and Part Numbers The parts of the test cell are shown in Figure 7-2 below. Refer to Table 7.1 for the associated part numbers and the quantity used. To order replacement parts contact MOCON in the USA at (763) 493-6370. Figure 7-2: Test Cell Components Item Quantity... -
Page 47: Maintaining The Oxygen (Coulox) Sensor
OX-TRAN Model 2/22 Operator’s Manual Maintenance Maintaining the Oxygen (Coulox) Sensor Under normal use, the Coulox sensor supplied with your OX-TRAN Model 2/22 should last a year or more. The sensor could be damaged by accidents or by misuse such as continual exposure to high concentrations of oxygen. -
Page 48: System Standby
Maintenance OX-TRAN Model 2/22 Operator’s Manual System Standby When a test series is complete, the instrument sets the sensor to the Bypass state. In this position the sensor is isolated and protected from inadvertent exposure to large amounts of oxygen. If no testing will be performed for an extended period of time (overnight or weekend) leave a film mounted and clamped in the test cells. -
Page 49: Chapter 8: Troubleshooting
OX-TRAN Model 2/22 Operator’s Manual Trouble Shooting Chapter 8: Troubleshooting This chapter contains information to assist you in solving problems that may occur during the operation of the instrument. Read this chapter to learn about: • Error Messages and Warnings •... -
Page 50: Recovering From A Sensor Over-Range Condition
Troubleshooting OX-TRAN Model 2/22 Operator’s Manual Symptom: Abrupt changes in display readings or long-term cyclic oscillations. Comment: Unwanted data fluctuations observed during a test cycle may be caused by abrupt changes in the carrier gas flow rate. Such a transient symptom can be produced by a temporary restriction in any gas line, or gas usage by another system. -
Page 51: Chapter 9 Specifications
OX-TRAN Model 2/22 Operator’s Manual Specifications Chapter 9 Specifications This chapter contains the specifications of the OX-TRAN Model 2/22. Read this chapter for details about: Physical specifications • Environmental requirements • • Electrical requirements • Gas Supply requirements • Operational capabilities Physical Specifications Height Width... -
Page 52: Gas Supply Requirements
Specifications OX-TRAN Model 2/22 Operator’s Manual Gas Supply Requirements Gas Composition Nitrogen/Hydrogen Mix (98%/2%) Supply Pressure, Nominal 25 PSI, (1.72 Bar), (172 kPa) Carrier Gas Supply Pressure, Maximum 27 PSI, (1.86 Bar), (186 kPa) Supply Pressure, Minimum 22 PSI, (1.52 Bar), 152 kPa) Flow Rate, Nominal, Test Active 80 cc/minute Gas Composition... -
Page 53: Operational Capabilities
OX-TRAN Model 2/22 Operator’s Manual Specifications Operational Capabilities Temperature Control Range 10 °C to 40 °C ± 0.2 °C Time to Reach a Heated Temp (from ambient) Approximately 45 minutes to reach 99% of a 40 °C setting Time to Reach a Cooled Temp (from ambient) Approximately 2 hours to reach 99% of a 10 °C setting Humidity Control, Film Cell, Carrier Gas 0% to 90% RH ±... -
Page 54: Table 9.8: Operational Capabilities - Ox-Tran 2/22 Model 10X
Specifications OX-TRAN Model 2/22 Operator’s Manual Temperature Control Range 10 °C to 40 °C ± 0.2 °C Time to Reach a Heated Temp (from ambient) Approximately 45 minutes to reach 99% of a 40 °C setting Time to Reach a Cooled Temp (from ambient) Approximately 2 hours to reach 99% of a 10 °C setting Humidity Control, Film Cell, Carrier Gas 0% to 90% RH ±... -
Page 55: Appendix A: Site Preparation Instructions
OX-TRAN Model 2/22 Operator’s Manual Site Preparation Instructions Appendix A: Site Preparation Instructions See Next Page MOCON, Inc. Revision R... - Page 56 Site Preparation Instructions OX-TRAN Model 2/22 Operator’s Manual Part Number 140-216 Revision D 7500 Mendelssohn Avenue North Minneapolis, MN 55428 U.S.A. Telephone 763-493-6370 Web Site: www.ametekmocon.com SITE PREPARATION INSTRUCTIONS IMPORTANT! REQUIREMENTS FOR THE START-UP OF THE OX-TRAN ® Model 2/22 SYSTEM The following must be furnished by the customer before a new OX-TRAN Model 2/22 can be set up.
- Page 57 OX-TRAN Model 2/22 Operator’s Manual Site Preparation Instructions Wall / 3.175 mm OD x 0.762 mm) is required. This tubing can be purchased through MOCON by calling MOCON in the USA at (763) 493-6370 or through your local tubing supplier. DISTILLED WATER - You should use HPLC grade water for relative humidity generation.
- Page 58 Site Preparation Instructions OX-TRAN Model 2/22 Operator’s Manual The MOCON OX-TRAN Model 2/22 system will provide years of useful life provided these requirements are observed. Please contact MOCON in the USA at (763) 493-6370 with any questions regarding these Site Preparation Instructions.
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Page 59: Appendix B: Spare Parts
OX-TRAN Model 2/22 Operator’s Manual Spare Parts Appendix B: Spare Parts The following is a list of the spare parts that are available for the OX-TRAN Model 2/22. To order, contact the MOCON in the USA at (763) 493-6370. Part Unit Of Description Quantity... - Page 60 Spare Parts OX-TRAN Model 2/22 Operator’s Manual Part Unit Of Description Quantity Number Measure 051-932 Certified Film, #4, 2/22, 1 sq cm, 23.0 °C, 0% RH, Gold/Black 105-259 Mask, Aluminum Foil, 4X4, Blank 110-559 Assy, Package Mounting Fixture, 4 X 4 110-671 Set, Certified Film, 2/22, Set of 3 130-015...
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Page 61: Appendix C: Warranty And Service Policies
OX-TRAN Model 2/22 Operator’s Manual Warranty and Service Policies Appendix C: Warranty and Service Policies See Next Pages MOCON, Inc. Revision R... - Page 62 Warranty and Service Policies OX-TRAN Model 2/22 Operator’s Manual Part Number 032-846 Revision G 7500 Mendelssohn Avenue North Minneapolis, MN 55428 USA Telephone 763-493-6370 Web Site: www.ametekmocon.com WARRANTY POLICY STATEMENT OF LIMITED WARRANTY MOCON, Inc. warrants that any part of any MOCON instrument or accessory ( “ I n s t r u m e n t ” ) which proves to be defective in material or workmanship during the warranty period will be repaired by MOCON "certified"...
- Page 63 OX-TRAN Model 2/22 Operator’s Manual Warranty and Service Policies • If field training is not purchased, the warranty period is Ninety days from date of shipment from MOCON’s factory. Units or systems without MOCON offered field training. • One year from date of shipment from MOCON’s factory. Spare parts, repairs and accessories when purchased separately and not a part of a new instrument order.
- Page 64 Warranty and Service Policies OX-TRAN Model 2/22 Operator’s Manual Part Number 032-847 Revision D 7500 Mendelssohn Avenue North Minneapolis, MN 55428 USA Telephone 763-493-6370 Web Site: www.ametekmocon.com INTERNATIONAL SERVICE POLICY MOCON offers a complete range of service options to purchasers of MOCON instrumentation and systems. ♦♦♦SERVICE PERFORMED WITHIN THE WARRANTY PERIOD♦♦♦...
- Page 65 OX-TRAN Model 2/22 Operator’s Manual Warranty and Service Policies Part Number 032-848 REVISION E 7500 Mendelssohn Avenue North Minneapolis, MN 55428 USA Telephone 763-493-6370 Web Site: www.ametekmocon.com DOMESTIC SERVICE POLICY MOCON offers a complete range of service options to purchasers of MOCON instrumentation and systems. ♦♦♦SERVICE PERFORMED WITHIN THE WARRANTY PERIOD♦♦♦...
- Page 66 Warranty and Service Policies OX-TRAN Model 2/22 Operator’s Manual All parts are shipped EXW MOCON factory Minneapolis, Minnesota; freight and Insurance will be billed separately. • • MOCON insures all shipments unless advised otherwise. All repairs after the original instrument warranty period are warranted for 90 days on parts and labor, EXW. MOCON factory. •...
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Page 67: Appendix D: Theory Of Operation
OX-TRAN Model 2/22 Operator’s Manual Theory of Operation Appendix D: Theory of Operation How the Oxygen Sensor Works The Coulox oxygen sensor is a fuel cell that performs in accordance with Faraday’s Law. When exposed to oxygen, the sensor generates an electrical current that is proportional to the amount of oxygen entering the sensor. -
Page 68: Factors That Affect The Transmission Rate Of A Barrier Material
Theory of Operation OX-TRAN Model 2/22 Operator’s Manual Factors that Affect the Transmission Rate of a Barrier Material The oxygen transmission rate of barrier materials is affected by several factors: Barrier test temperature • Test gas (oxygen) concentration effect on driving force •... -
Page 69: How A Humidified Test Gas Is Generated
OX-TRAN Model 2/22 Operator’s Manual Theory of Operation How a Humidified Test Gas is Generated Humidified Carrier and Test Gases are created by moving pressurized gas through a humidifier filled with HPLC-grade water and mixing the wet gas with a dry gas in the appropriate ratios. A separate humidifier is provided for each of the gases (Test and Carrier). -
Page 70: How The Auto-Test Method Works
Theory of Operation OX-TRAN Model 2/22 Operator’s Manual How the Auto-Test Method Works The Auto-Test Method utilizes an internal rule-set to dynamically optimize how a permeation test is performed. The Auto-Test Method also utilizes an advanced dynamic convergence algorithm to determine when the sample has reached equilibrium. -
Page 71: Appendix E: Electrical And Plumbing Diagrams
OX-TRAN Model 2/22 Operator’s Manual Preparing RH Calibration Standards Appendix E: Electrical and Plumbing Diagrams Title Part Number Plumbing Diagram, OX-TRAN Model 2/22 051-942 Electrical Diagram, OX-TRAN Model 2/22 051-943 MOCON, Inc. Revision R... - Page 72 Preparing RH Calibration Standards OX-TRAN Model 2/22 Operator’s Manual Figure E-1: Plumbing Diagram Page 1 Revision R MOCON, Inc.
- Page 73 OX-TRAN Model 2/22 Operator’s Manual Preparing RH Calibration Standards Figure E-2: Plumbing Diagram Page 2 MOCON, Inc. Revision R...
- Page 74 Preparing RH Calibration Standards OX-TRAN Model 2/22 Operator’s Manual Figure E-3: Electrical Diagram Page 1 Revision R MOCON, Inc.
- Page 75 OX-TRAN Model 2/22 Operator’s Manual Preparing RH Calibration Standards Figure E-4: Electrical Diagram Page 2 MOCON, Inc. Revision R...
- Page 76 Preparing RH Calibration Standards OX-TRAN Model 2/22 Operator’s Manual Figure E-5: Electrical Diagram Page 3 Revision R MOCON, Inc.
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Page 77: Appendix F: Preparing Rh Calibration Standards
OX-TRAN Model 2/22 Operator’s Manual Preparing RH Calibration Standards Appendix F: Preparing RH Calibration Standards To calibrate or check the RH probes used in the OX-TRAN Model 2/22, requires RH reference values (or standards). A RH Calibration Standard consists of a saturated salt solution or molecular sieve in a “Calibration Flask”. -
Page 78: Preparing A High Level Calibration Standard
Preparing RH Calibration Standards OX-TRAN Model 2/22 Operator’s Manual Preparing a High Level Calibration Standard A High Level RH Calibration standard can be prepared using a salt solution as follows: Chose the appropriate salt for the calibration standard. See “Choosing a Salt for a Calibration Standard”... -
Page 79: Appendix G: Permeant Sensor Adjustment
OX-TRAN Model 2/22 Operator’s Manual Calibrating the Permeant Sensor Appendix G: Permeant Sensor Adjustment The Permeant Sensor in the OX-TRAN Model 2/22 is a Coulometric oxygen detector. The patented Coulox sensor has a high degree of intrinsic accuracy. It is not necessary to calibrate a Coulox Permeant Sensor. However, there are slight differences in efficiency between Coulox sensors. -
Page 80: Permeant Sensor Adjustment Test Setup
Calibrating the Permeant Sensor OX-TRAN Model 2/22 Operator’s Manual Adjustment of the permeant (Coulox) sensor is a two step process. First, a film sample with a known transmission rate must be tested. Refer to the “Permeant Sensor Adjustment Test Setup” in this chapter for information on setting up a film test. - Page 81 OX-TRAN Model 2/22 Operator’s Manual Calibrating the Permeant Sensor The Calibration Film Test Procedure should be performed using an “Advanced” Test Method. For information on how to set up an Advanced Test see the instrument Help System. Verify the following Instrument Level parameters have been correctly assigned: Cell Temperature: If using certified films, the test temperature must be 23.0 °C.
- Page 82 Calibrating the Permeant Sensor OX-TRAN Model 2/22 Operator’s Manual Adjust the output of the Permeant Sensor using the “OTR Adjustment” screen. Refer to the Instrument Help System for more information on performing an adjustment. NOTE: Calibration films should be stored in a manner that will keep them clean and free from wrinkles.
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Page 83: Appendix H: Compliance
OX-TRAN Model 2/22 Operator’s Manual Compliance Appendix H: Compliance MOCON, Inc. Revision R...