GE MOA 280i Manuals

Manuals and User Guides for GE MOA 280i. We have 1 GE MOA 280i manual available for free PDF download: Operation And Maintenance Manual

GE MOA 280i Operation And Maintenance Manual

GE MOA 280i Operation And Maintenance Manual (211 pages)

Nitric Oxide Analyzer

Brand: GE | Category: Measuring Instruments | Size: 2.4 MB

Table of Contents

Table of Contents
7
Introduction

15
- Sample Inlet Systems
  19
- Sample Flow Control Device
  19
- Ozone Flow Control Module
  19
- Ozone Generator
  19
- Chemiluminescent Reaction Chamber and Optical Filter
  20
- Device
  20
- Photomultiplier Tube and Cooled Housing
  21
- Vacuum Pump and Ozone Destruction Trap
  21
- Electronics
  21
- Analog, Printer and RS-232 Outputs
  22
- Exhalation Pressure Transducer
  23
- Thermal Mass Flow Meter
  23
Specifications

25
Menus and Control Overview

27
- Main Menu
  27
- Status Screen
  27
- Analysis
  28
- Measurement Menu
  29
- Main Menu Options
  32
  - Control
    32
  - Calibration
    33
  - Messages
    33
  - Maintenance
    34
- Time-Out Function
  34
Installation

35
- Location
  35
- Power Requirements
  35
- Environmental Considerations
  36
- Tools and Additional Supplies
  36
  - Tools
    36
  - Gases
    36
  - Data Collection
    36
- Vacuum Pump Setup
  38
- Connections to Noa
  43
  - Vacuum Pump Power Cord and Vacuum Hose
    43
  - Vacuum Test
    43
  - Gas for Ozone Generator
    45
  - Frit Restrictor
    46
  - Computer, Printer and Analog Signal Connections
    46
  - Setting the Clock
    47
- Configuration Menu Options
  48
  - Com Port
    48
  - Configuration Menu
    49
  - Pressure Units
    49
- Setting the Consumables Installation Data
  50
- Start-Up
  50
Installation and Setup: Gas-Phase Measurements

53
Calibration

61
On-Line Exhaled Nitric Oxide

73
Off-Line Exhaled Nitric Oxide (Bag Sampling)

85
Breath-By-Breath and Chamber Sampling for Exhaled Nitric Oxide

103
- Breath-By-Breath Measurements
  103
  - Spontaneously Breathing Subjects
    103
  - Ventilated Subjects
    104
- Noa Setup
  105
  - No/Pressure Offset
    105
  - Humidified Circuits
    105
- Chamber Sampling
  106
- Noa Setup
  108
10. Nasal Nitric Oxide

109
- Recommended Setup
  109
- Performing the Maneuver
  110
- Noa Setup
  111
11. Installation and Setup: Liquid Measurements

113
- Supplies
  113
  - Gases
    113
  - Reagents
    113
  - Lab Equipment
    113
- Setup of Purge Vessel
  114
  - Connections of Tubing to Glassware
    115
    
    Procedure for Tightening Swagelok Fittings
    116
- Dilution of Anti-Foaming Agent
  119
- Noa Setup for Liquid Measurements
  120
- Deproteinization Procedures
  122
  - Cold Ethanol Precipitation
    123
  - Zinc Sulfate/Sodium Hydroxide Precipitation
    123
Measurement of Nitric Oxide and Nitrite in Liquid Samples

125
- Apparatus for Nitrite Reduction
  125
- Preparation of the Nitrite Reducing Agent
  126
- Adjustment of Purge Gas Flow Rate
  127
- Adjustment of Liquid Level
  127
  - Preparation of Stock Solution
    129
  - Preparation of Dilute Standards
    131
- Water Blanks
  132
- Injection Technique
  133
- Preparation of Calibration Curve
  133
- Linear Range and Off-Scale Peaks
  133
- Repeatability
  134
- Nitrite Contamination
  134
- Sample Analysis
  136
- Background Nitrite
  136
- Replacing the Reducing Agent and Opening the Purge Vessel
  137
- Septum Replacement
  138
- Cleaning the Purge Vessel
  138
- Cleaning of the Ifd Filter
  140
- Long-Term Maintenance of the Purge Vessel and Bubbler
  140
Measurement of Nitrate, Nitrite and Nitric Oxide in Liquid Samples

143
- Apparatus for Nitrate Reduction
  143
- Adjustment of Purge Gas Flow Rate
  146
- Leak Check for Purge Vessel
  147
- Adjustment of Liquid Level
  147
  - Preparation of Stock Solution
    148
  - Preparation of Dilute Standards
    149
- Water Blanks
  151
- Injection Technique
  151
- Preparation of Calibration Curve
  152
- Analysis of Samples and Standards
  152
  - Serum and Plasma Samples
    152
- Nitrate Contamination
  153
- Replacing the Reducing Agent and Opening the Purge Vessel
  153
- Opening the Gas Bubbler
  154
- Septum Replacement
  155
- Cleaning the Purge Vessel
  155
- Cleaning the Gas Bubbler
  157
- Cleaning the Bubbler Tubing
  158
- Cleaning of the Ifd Filter
  158
  - Long-Term Maintenance of the Purge Vessel and Bubbler
    159
14. Other Liquid Measurement Techniques

161
- Measurement of Nitrosothiols
  161
  - Cu(I)/Cysteine Reagent
    161
    
    Preparation of Reducing Agent
    161
    
    Preparation of Nitrosothiols Standards
    162
  - Copper(I)/Iodide/Iodine Reagent
    162
    
    Preparation of the Reducing Agent
    162
    
    Preparation of S-Nitroso-Albumin
    163
    
    Treatment of Plasma Samples
    163
- Measurement of Iron-Bound no
  163
- Headspace Measurement of Nitric Oxide
  164
  - Apparatus for Headspace Analysis
    165
  - Sample Collection
    165
  - Preparation of Standards for Headspace
    166
- Dynamic Headspace Analysis
  167
15. Maintenance

169
- Changing the Vacuum Pump Oil
  169
- Changing the Hopcalite Trap
  172
- Cleaning the Chemiluminescence Reaction Cell
  173
- Vacuum Test
  178
- Reset the Cell Cleaning Timer
  178
- Light Leak Test
  178
- Cooler Maintenance
  179
- Testing and Cleaning the Flow Restrictor Frit
  181
- Gas Sampling Particle Filter
  182
- Security
  182
16. Troubleshooting

185
- Errors
  185
- Possible Errors and Remedies
  186
- Warnings
  187
- Clearing the Error and Warning Stacks
  190
- Start-Up Tests
  190
  - Vacuum Pump
    191
  - Cooler Temp
    191
  - Supply Pressure
    191
  - PMT Signal
    191
- Troubleshooting the Noa
  192
  - No Power to NOA
    193
  - No Display
    194
- Cell Pressure too High or too Low
  195
- Gas Sampling Problems
  195
- High Background no after Calibration
  196
- Liquid Measurements Problems
  196
  - Low Sensitivity
    196
  - Leaks in Purge System
    197
  - Low Conversion for Nitrate
    197
  - Poor Repeatability
    197
    
    Syringe Problems
    198
    
    Foaming of Thevcl Reagent
    198
    
    Injection Technique
    198
    
    Contamination
    198
  - High Background Signal and Rising Baselines
    199
  - Ghost Peaks
    199

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