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OX-TRAN
®
Model 2/40
Operator's Manual
Revision J
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 143-211

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Summary of Contents for Lauper Instruments mocon AMETEK OX-TRAN 2/40

  • Page 1 OX-TRAN ® Model 2/40 Operator’s Manual Revision J 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 143-211...
  • Page 2 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.
  • Page 3 OX-TRAN Model 2/40 Operator’s Manual About This Manual About This Manual This manual explains how to set up and use the OX-TRAN Model 2/40 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.
  • Page 4: Safety Information

    Safety Information OX-TRAN Model 2/40 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 2/40 Operator’s Manual Table of Contents Table of Contents About This Manual ............................iii Safety Information ............................iv Chapter 1: Introduction..........................1-1 Features ............................... 1-2 Measuring an Oxygen Transmission Rate .................... 1-3 Testing Packages and Films ........................ 1-4 Permeation Test Overview ........................
  • Page 6 Table of Contents OX-TRAN Model 2/40 Operator’s Manual Saved Test Methods ........................3-7 Using Test Sequencing ........................3-7 Humidified Environment Testing ......................3-8 Filling the Test Gas Water Reservoir ....................3-8 Filling the Carrier Gas Water Reservoir ..................3-9 Loading and Unloading a Test Cartridge .................... 3-10 Chapter 4: Using the Instrument Software....................
  • Page 7 OX-TRAN Model 2/40 Operator’s Manual Table of Contents Electrical Requirements ........................9-1 Physical Specifications ......................... 9-1 Chamber Specifications ........................9-2 Gas Supply Requirements ........................9-2 Sample Conditioning Capabilities ......................9-3 Transmission Rate Measurement Capabilities ..................9-4 Appendix A: Site Preparation Instructions ....................A-1 Appendix B: Spare Parts ..........................
  • Page 8 Table of Contents OX-TRAN Model 2/40 Operator’s Manual Figures Figure 1-1: OX-TRAN Model 2/40 System ....................1-1 Figure 1-2: An OX-TRAN Model 2/40 Permeation Cell ................1-3 Figure 1-3: Large Tray Cartridge ....................... 1-4 Figure 1-4: Package Adapter Cartridge ..................... 1-4 Figure 1-5: Bottle &...
  • Page 9: Chapter 1: Introduction

    OX-TRAN Model 2/40 Operator’s Manual Introduction Chapter 1: Introduction This chapter provides a brief overview of the OX-TRAN Model 2/40 Oxygen Transmission Rate System. Read this chapter to get an overview of: The features of the OX-TRAN Model 2/40 system •...
  • Page 10: Features

    Introduction OX-TRAN Model 2/40 Operator’s Manual Features The following features of the OX-TRAN Model 2/40 Oxygen Transmission Rate System make it very versatile and easy to use: Fully automatic (Hands Off) testing. • Four Test Cells to provide increased test capacity. •...
  • Page 11: Measuring An Oxygen Transmission Rate

    OX-TRAN Model 2/40 Operator’s Manual Introduction Measuring an Oxygen Transmission Rate To make an accurate transmission rate measurement a Test Gas (20.9% 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 12: Testing Packages And Films

    Introduction OX-TRAN Model 2/40 Operator’s Manual Testing Packages and Films To test packages (or films) the sample must be mounted in a Diffusion Cell. A Diffusion Cell exposes one side of the sample barrier to a Test Gas and the other side to a Carrier Gas. The gases supplied to the cell can be dry or at a specified RH.
  • Page 13: Figure 1-5: Bottle & Cup Cartridge

    OX-TRAN Model 2/40 Operator’s Manual Introduction Figure 1-5: Bottle & Cup Cartridge Figure 1-6: Film Cartridge MOCON, Inc. Revision J...
  • Page 14: Permeation Test Overview

    Introduction OX-TRAN Model 2/40 Operator’s Manual Permeation Test Overview A “Permeation Test” consists of up to two phases that are performed using a Test Cell. The “Cell” may contain a package cartridge or a film cartridge. The Test Phase (always present) is used to measure the transmission rate of the test sample.
  • Page 15: Chapter 2: Setting Up

    OX-TRAN Model 2/40 Operator’s Manual Setting Up Chapter 2: Setting Up This chapter provides information on how to set up an OX-TRAN Model 2/40 and prepare it for use. Read this chapter to learn about: Unpacking the System • • Preparing for System Installation •...
  • Page 16: Front Panel Parts And Controls

    Setting Up OX-TRAN Model 2/40 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, and Table 2.3. Figure 2-1: Front Panel Parts and Controls Item Name Description USB Ports...
  • Page 17: Back Panel Parts And Controls

    OX-TRAN Model 2/40 Operator’s Manual Setting Up 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 2-2 and Table 2.2. Figure 2-2: Back Panel Connections and Controls Item Name Description The switch that is used to turn the instrument on and off.
  • Page 18: Inner Chamber Parts And Controls

    Setting Up OX-TRAN Model 2/40 Operator’s Manual Inner Chamber Parts and Controls Figure 2-3: Carrier Gas Humidifier Figure 2-4: Test Cell Details Item Name Description Water Reservoir - Carrier Gas Window showing the Carrier Gas Reservoir water level. Reservoir Fill Line The Carrier Gas Reservoir maximum level line.
  • Page 19: Carrier Gas

    OX-TRAN Model 2/40 Operator’s Manual Setting Up Carrier Gas The OX-TRAN Model 2/40 requires a Carrier Gas mixture that is 98% nitrogen and 2% hydrogen. The specific percentage of each gas is not critical. The percentage of hydrogen in the mixture may be as low as 1% or as high as 3%.
  • Page 20: Connecting The Gas Lines

    Setting Up OX-TRAN Model 2/40 Operator’s Manual Connecting the Gas Lines The OX-TRAN Model 2/40 has a gas inlet for connecting the Carrier Gas (nitrogen/hydrogen) supply. This compression fitting is intended for use with 1/8” copper tubing. Refer to Figure 2-2 and Figure 2-5 for the location of this fitting and an example of plumbing system diagram.
  • Page 21: Connecting The Compressed Air Supply

    OX-TRAN Model 2/40 Operator’s Manual Setting Up Connecting the Compressed Air Supply A supply of clean, dry compressed air is required for the test gas. The compressed air supply must meet the requirements for pressure, flow and purity as stated in Chapter 9. See Appendix A “Site Preparation” for additional information.
  • Page 22: Setting The Gas Supply Pressures

    Setting Up OX-TRAN Model 2/40 Operator’s Manual Setting the Gas Supply Pressures Set the Gas Supply Pressures as follows: Verify dust caps installed on the “System Vents” have been removed. Set the Compressed Air supply regulator pressure to 80 psi. Set the Carrier Gas cylinder or main line regulator pressure to 35 psi.
  • Page 23: Chapter 3: Preparing For A Test

    OX-TRAN Model 2/40 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 24: Testing Mixed Barriers

    Preparing for a Test OX-TRAN Model 2/40 Operator’s Manual Testing Mixed Barriers Simultaneously testing barriers with widely divergent transmission rates is not recommended. The data for some or all of the individual samples may not be accurate when there is a large difference in the transmission rates between samples.
  • Page 25: Individual Zero Processing

    OX-TRAN Model 2/40 Operator’s Manual Preparing for a Test Individual Zero Processing Adjusting the ReZero frequency will compensate for small shifts in the baseline zero. It may also be necessary to compensate for individual variations such as seal permeation and leakage in the Test Cartridge.
  • Page 26: Purging The Sample

    Preparing for a Test OX-TRAN Model 2/40 Operator’s Manual Purging the Sample Most mounted package samples contain a significant volume of gas on the Carrier side of the barrier material. Before the package cassette is loaded and clamped into a Test Cell this volume contains oxygen from the ambient environment.
  • Page 27: Conditioning The Sample

    OX-TRAN Model 2/40 Operator’s Manual Preparing for a Test Conditioning the Sample Sample Conditioning is a test state that allows the sample barrier to acclimate to the specified test conditions. When you condition a sample it is exposed to carrier gas and test gas in the same manner as during normal testing.
  • Page 28: Using The Automatic Check Function

    Preparing for a Test OX-TRAN Model 2/40 Operator’s Manual Using the Automatic Check Function Mounting packages in a manner that ensures the Carrier Gas side of the cell is free of leaks can be very difficult. Any imperfections in the seals used to mount the sample package to the Package Cassette can result in excessive levels of oxygen entering the Carrier Gas side of the cell.
  • Page 29: Determining When To Stop A Test

    OX-TRAN Model 2/40 Operator’s Manual Preparing for a Test 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 30: Humidified Environment Testing

    Preparing for a Test OX-TRAN Model 2/40 Operator’s Manual Humidified Environment Testing The OX-TRAN Model 2/40 has the capability of generating a controlled RH for both the Carrier Gas and the Test Gas. The maximum generated RH for the Carrier Gas and the Test Gas is 90% RH. For the minimum RH that can be generated refer to the section on “Sample Conditioning Capabilities”...
  • Page 31: Filling The Carrier Gas Water Reservoir

    OX-TRAN Model 2/40 Operator’s Manual Preparing for a Test Filling the Carrier Gas Water Reservoir Before starting a test requiring RH generation the level in the Water Reservoir should be checked and filled if necessary. Follow these steps to fill the Water Reservoir: Note: Refer to Figure 3-1 for the location of the Carrier Gas Water Reservoir and Water Fill Port.
  • Page 32: Loading And Unloading A Test Cartridge

    Preparing for a Test OX-TRAN Model 2/40 Operator’s Manual Loading and Unloading a Test Cartridge The OX-TRAN Model 2/40 uses a pneumatic system to clamp and unclamp a Test Cartridge. The Test Cartridge must be manually loaded into and unloaded from the instrument. To remove a Test Cartridge from the instrument follow the instructions below (refer to Figure 3-2): Open the outer and inner chamber doors.
  • Page 33: Chapter 4: Using The Instrument Software

    OX-TRAN Model 2/40 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 2/40. Detailed information on how to use the instrument software can be found in the Instrument Help System. Read this chapter to learn about: •...
  • Page 34: Instrument Software Structure And Organization

    Using the Instrument Software OX-TRAN Model 2/40 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 35: Chapter 5: Testing Packages

    OX-TRAN Model 2/40 Operator’s Manual Testing Packages Chapter 5: 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: Package Mounting Methods

    Testing Packages OX-TRAN Model 2/40 Operator’s Manual Package Mounting Methods There are many different types of packages and most of them can be tested on the OX-TRAN Model 2/40. To test packages a Diffusion Cell must be created to provide the required difference in permeant concentration across the barrier material.
  • Page 37: Mounting Packages Using A Package Adapter Cartridge

    OX-TRAN Model 2/40 Operator’s Manual Testing Packages Mounting Packages using a Package Adapter Cartridge Not all packages are compatible with the standard Test Cartridges which are designed for testing the most common types of rigid and flexible packages. These types of packages can be tested using a Package Adapter Cartridge.
  • Page 38: Package Purging

    Testing Packages OX-TRAN Model 2/40 Operator’s Manual Package Purging The amount of time required to properly purge a package can be unpredictable. The use of the “Automatic Purge” function should be considered when testing packages with significant internal volume. For more information on Purging Samples see “Purging the Sample”...
  • Page 39: Chapter 6: Testing Flat Film Samples

    OX-TRAN Model 2/40 Operator’s Manual Testing Flat Film Samples Chapter 6: 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 40: Preparing For A Film Test

    Testing Flat Film Samples OX-TRAN Model 2/40 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 Film Test Cartridge and Loaded into the instrument.
  • Page 41: Orienting The Sample

    OX-TRAN Model 2/40 Operator’s Manual Testing Flat Film Samples 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 42: Mounting A Sample In A Film Cartridge

    Testing Flat Film Samples OX-TRAN Model 2/40 Operator’s Manual Mounting a Sample in a Film Cartridge 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 43: Sample Purging

    OX-TRAN Model 2/40 Operator’s Manual Testing Flat Film Samples Sample Purging The Film Test Cartridge does not normally need to be purged after mounting a sample. A permeation test always starts with a ReZero state. The time required to complete the ReZero is normally sufficient to properly purge the Film Test Cartridge.
  • Page 45: Chapter 7: Maintenance

    OX-TRAN Model 2/40 Operator’s Manual Maintenance Chapter 7: Maintenance This contains information on how to clean and maintain the OX-TRAN Model 2/40. Read this chapter to learn about: Cleaning the Instrument • • Maintaining the Test Cells • Maintaining the Oxygen (Coulox) Sensor •...
  • Page 46: Maintaining The Test Cells

    Maintenance OX-TRAN Model 2/40 Operator’s Manual Maintaining the Test Cells Periodically the test cell gas ports should be examined and any excess buildup of grease should be removed. Alcohol can be used to remove any residue from the Apiezon grease. Inspect the gas ports and True Seal flush port and remove any grease that could obstruct the flow of gas.
  • Page 47: Maintaining The Oxygen (Coulox) Sensor

    OX-TRAN Model 2/40 Operator’s Manual Maintenance Maintaining the Oxygen (Coulox) Sensor Under normal use, the Coulox sensor supplied with your OX-TRAN Model 2/40 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: Emptying The Carrier Gas Water Reservoir

    Maintenance OX-TRAN Model 2/40 Operator’s Manual Emptying the Carrier Gas Water Reservoir Before shutting down the instrument for long term storage or repair the Carrier Gas Water Reservoir must be drained and the chamber dried out to prevent any corrosion from occurring during storage or transport. To prepare the Carrier Gas Water Reservoir for storage or transport follow the procedure below: Advance all active tests to the Idle state.
  • Page 49: Chapter 8: Troubleshooting

    OX-TRAN Model 2/40 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 2/40 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 2/40 Operator’s Manual Specifications Chapter 9 Specifications This chapter contains the specifications of the OX-TRAN Model 2/40. Read this chapter for details about: Environmental requirements • Electrical requirements • Physical specifications • • Gas Supply requirements Operational capabilities •...
  • Page 52: Chamber Specifications

    Specifications OX-TRAN Model 2/40 Operator’s Manual Chamber Specifications Height Width Depth Volume 17 inches 25.5 inches 12 inches 3 cubic feet Uncrated (43.2 cm) (64.8 cm) (30.5 cm) (85 Liters) Table 9.4: Chamber Specifications Gas Supply Requirements Gas Composition Nitrogen/Hydrogen Mix (98%/2%) Supply Pressure, Nominal 25 PSI, (1.72 Bar), (172 kPa) Carrier Gas...
  • Page 53: Sample Conditioning Capabilities

    OX-TRAN Model 2/40 Operator’s Manual Specifications Sample Conditioning Capabilities Range 10 °C to 50 °C Temperature Control Repeatability ± 0.2 °C at a single point within the chamber. Accuracy +/-0.5°C at a single point within the chamber. 10-11 °C 15% to 75% RH 15 °C 12% to 80% RH 23 °C to 38 °C...
  • Page 54: Transmission Rate Measurement Capabilities

    Specifications OX-TRAN Model 2/40 Operator’s Manual Transmission Rate Measurement Capabilities 0.00025 to 1.0 cc/(pkg • day) @ 20.9% Oxygen Test Range, Package 0.00125 to 5.0 cc/(pkg • day) Compensated to 100% O 0.05 to 200 cc/(m • day) @ 20.9% Oxygen Test Range, Film, 50 cm 0.25 to 1000 cc/(m •...
  • Page 55: Table 9.9: Transmission Rate Specifications - Ox-Tran 2/40 Model 10X

    OX-TRAN Model 2/40 Operator’s Manual Specifications 0.000003 to 1.0 cc/(pkg • day) @ 20.9% Oxygen Test Range, Package 0.0000150 to 5.0 cc/(pkg • day) Compensated to 100% O 0.0005 to 200 cc/(m • day) @ 20.9% Oxygen Test Range, Film, 50 cm 0.0025 to 1000 cc/(m •...
  • Page 57: Appendix A: Site Preparation Instructions

    OX-TRAN Model 2/40 Operator’s Manual Warranty and Service Policies Appendix A: Site Preparation Instructions Part Number 140-220 Revision B 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 2/40 SYSTEM ®...
  • Page 58 Warranty and Service Policies OX-TRAN Model 2/40 Operator’s Manual will be placed must safely support a minimum of 225 pounds (102 kilograms). DOOR CLEARANCE REQUIREMENTS - The area in front of the instrument must be free and clear of obstructions. The chamber door is hinged on the right. The door swing is not reversible. The swing radius of the door is 33 inches (83.9 cm).
  • Page 59 OX-TRAN Model 2/40 Operator’s Manual Warranty and Service Policies TEST GAS - A supply of clean, dry compressed air is required for the test gas. The supply pressure must be between 72 and 100 psig (5 to 6.9 Bar) at a maximum flow rate of 0.88 CFM (25.0 LPM). The compressed air purity must meet or exceed ISO 8753-1:2010 [1:3:1].
  • Page 60 Warranty and Service Policies OX-TRAN Model 2/40 Operator’s Manual RECOMMENDED ELECTRICAL INSTALLATION NOTES The impedance of the equipment ground path from receptacle being utilized back to main service entrance where equipment ground and neutral are connected together must be one ohm or less. Machinery and air conditioners can generate a large amount of electrical interference on the AC power lines.
  • Page 61: Appendix B: Spare Parts

    OX-TRAN Model 2/40 Operator’s Manual Warranty and Service Policies Appendix B: Spare Parts The following is a list of the spare parts that are available for the OX-TRAN Model 2/40. To order, contact the MOCON in the USA at (763) 493-6370. Part Unit Of Description...
  • Page 62: Appendix C: Warranty And Service Policies

    Warranty and Service Policies OX-TRAN Model 2/40 Operator’s Manual Appendix C: Warranty and Service Policies (See Next Pages) Revision J MOCON, Inc.
  • Page 63 OX-TRAN Model 2/40 Operator’s Manual Warranty and Service Policies Part Number 032-846 Revision J 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 64 Warranty and Service Policies OX-TRAN Model 2/40 Operator’s Manual Spare parts, repairs and accessories when purchased separately and not a part of a new instrument order. Ninety days from date of shipment from MOCON's factory. • This warranty covers normal use only. It does not cover damage that results from alteration, accident, misuse, abuse, neglect, or failure to follow assembly, installation, operational, or other MOCON instruction.
  • Page 65 OX-TRAN Model 2/40 Operator’s Manual Warranty and Service Policies 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 66 Warranty and Service Policies OX-TRAN Model 2/40 Operator’s Manual 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 67: Appendix D: Theory Of Operation

    OX-TRAN Model 2/40 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 2/40 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 Carrier Gas Is Generated

    OX-TRAN Model 2/40 Operator’s Manual Theory of Operation How a Humidified Carrier Gas is Generated Humidified Carrier Gas is 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 mixing valve is used to “mix”...
  • Page 70: How The Automatic Purge Function Works

    Theory of Operation OX-TRAN Model 2/40 Operator’s Manual How the Automatic Purge Function Works The Automatic Purge function determines an appropriate Purge Time by monitoring the amount of oxygen in the Carrier Gas exhaust of the Test Cell. The oxygen in the exhaust of each test cell is measured using dedicated Purge Down sensors.
  • Page 71: How The Automatic Check Function Works

    OX-TRAN Model 2/40 Operator’s Manual Theory of Operation How the Automatic Check Function Works The Automatic Check function is used to verify that the oxygen level at the output of the Test Cell is within the measurement range of the instrument. The Automatic Check function is implemented as the Automatic Check State.
  • Page 72: How The Auto-Test Method Works

    Theory of Operation OX-TRAN Model 2/40 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 73: Appendix E: Electrical And Plumbing Diagrams

    OX-TRAN Model 2/40 Operator’s Manual Electrical and Plumbing Diagrams Appendix E: Electrical and Plumbing Diagrams Title Part Number Electrical Diagram, OX-TRAN Model 2/40 052-695 Plumbing Diagram, OX-TRAN Model 2/40 052-696 MOCON, Inc. Revision J...
  • Page 74 Electrical and Plumbing Diagrams OX-TRAN Model 2/40 Operator’s Manual Figure 9-1: Electrical Diagram Page 1 Revision J MOCON, Inc.
  • Page 75 OX-TRAN Model 2/40 Operator’s Manual Electrical and Plumbing Diagrams Figure 9-2: Electrical Diagram Page 2 MOCON, Inc. Revision J...
  • Page 76 Electrical and Plumbing Diagrams OX-TRAN Model 2/40 Operator’s Manual Figure 9-3: Electrical Diagram Page 3 Revision J MOCON, Inc.
  • Page 77 OX-TRAN Model 2/40 Operator’s Manual Electrical and Plumbing Diagrams Figure 9-4: Electrical Diagram Page 4 MOCON, Inc. Revision J...
  • Page 78 Electrical and Plumbing Diagrams OX-TRAN Model 2/40 Operator’s Manual Figure 9-5: Electrical Diagram Page 5 Revision J MOCON, Inc.
  • Page 79 OX-TRAN Model 2/40 Operator’s Manual Electrical and Plumbing Diagrams Figure 9-6: Plumbing Diagram Page 1 MOCON, Inc. Revision J...
  • Page 80 Electrical and Plumbing Diagrams OX-TRAN Model 2/40 Operator’s Manual Figure 9-7: Plumbing Diagram Page 2 Revision J MOCON, Inc.
  • Page 81: Appendix F: Permeant Sensor Adjustment

    OX-TRAN Model 2/40 Operator’s Manual Calibrating the Permeant Sensor Appendix F: Permeant Sensor Adjustment The Permeant Sensor in the OX-TRAN Model 2/40 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 82: Permeant Sensor Adjustment Test Setup

    Calibrating the Permeant Sensor OX-TRAN Model 2/40 Operator’s Manual Permeant Sensor Adjustment Test Setup To calibrate an instrument to a standard reference film or a certified film use the following procedure: NOTE: Mocon has available Certified NIST Films that cover the usual testing range. Call MOCON in the USA at (763) 493-6370 for more information.
  • Page 83 OX-TRAN Model 2/40 Operator’s Manual Calibrating the Permeant Sensor ReZero Frequency ReZero Exam Minutes Use of the “Test ID”, “Sample ID” and “Material ID” fields is advised to document the all of the NOTE: relevant information on the specific material used to perform the test. Verify the following Cell Level parameters have been correctly assigned: Package/Film selection: Verify that Package is selected if using a Certified film.
  • Page 84 Calibrating the Permeant Sensor OX-TRAN Model 2/40 Operator’s Manual NOTE: Calibration films should be stored in a manner that will keep them clean and free from wrinkles. MOCON Certified NIST Films should be stored in the provided case. You will need to use these films again whenever a module needs re-calibration.
  • Page 85: Appendix G: Compliance

    OX-TRAN Model 2/40 Operator’s Manual Compliance Appendix G: Compliance MOCON, Inc. Revision J...

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