PICARRO G2920 User Manual

Ethylene oxide concentration analyzer

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Table of Contents

Table of Contents
Introduction
Intended Use
External Vacuum Pump
Analyzer Specifications
Figure 1: Vacuum Pump - Side Views
Table 1: G2910/G2920 Operating Specifications
Conventions
Table 2: Warning/Information Icons
Safety
General Safety
Laser Safety
Figure 2: Laser Safety Label - Affixed to Outside Cover of Analyzer
Figure 3: Laser Safety Label - Affixed to Inside of Analyzer
Acronyms
Table 3: Acronyms, Formulas, Units, and Symbols
Unpacking Analyzer Components
Inspect the Shipping Boxes
Unpack the Shipping Boxes
Figure 4: G2910/G2920 Box Contents
Table 4: Box One: Analyzer and Accessories
Table 5: Box Two: Vacuum Pump and Accessories
Installation
Analyzer and Vacuum Setup
Figure 5: Eto Analyzer Back Panel
Figure 6: Pump Voltage Selection
Connecting to the Analyzer Inlet
Figure 7: Orientation of Ferrules and Nut
Setting up Monitor, Keyboard, and Mouse
Analyzer Basic Operation
Startup Procedure
Desktop Icons and Folders
Figure 8: Picarro Analyzer GUI
Figure 9: Stop CRDS Software Pop-Up
Shutdown Procedure
In Case of Electrical Power Outage
Figure 10: Shutdown Confirmation Pop-Up
List of GUI Functions
GUI Overview
Figure 11: Layout of G2910/G2920 Analyzer GUI
Settings, Tools, and Help Menus
Alarm Panel
Figure 12: Alarm Setting Window
Instrument Status
Data Log Filename and Path
Data Window
Figure 13: Instrument Status
Figure 14: Data Log Filename
Figure 15: Data Window
Figure 16: Data Source
Figure 17: Precision Pulldown
Figure 18: Data Buffer and Reset Buffer
Figure 19: Graph Zooming
Figure 20: Digital Readouts
Status Log Window
File Management
Overview
File Archival and Automatic Deletion of Old Files
Measuring Time in Picarro Data Files
Table 6: Data Time Stamp Definitions
Column Headers
Table 7: Column Header Definitions
Setup Tool
Figure 21: Setup Tool - Data Logger Tab
Figure 22: Setup Tool - Serial/Socket Port Manager
Figure 23: Setup Tool - Data Delivery Tab
Figure 24: Setup Tool - GUI Properties Tab
Figure 25: Setup Tool - Command Interface Tab
Figure 26: Setup Tool - Data Streaming Tab
Figure 27: Setup Tool - Electrical Interface Tab
Calibration
Slope and Offset
Calibration Methodology
Figure 28: Linear Calibration Example
Calibration Software Utility Tools
Figure 29: Data Recal Software Utility GUI
Figure 30: Recalibration Section of Data Recal Software Utility GUI
Figure 31: Calibration Output Section of Data Recal Software Utility GUI
Figure 32: Action Selection Section of Data Recal Software Utility GUI
Figure 33: Delta Recalibration - Asterisk Indicating New Change
Figure 34: Slope of Delta Recalibration
Figure 35: Apply New Calibration Slope and Intercept
Figure 36: User Authorization Dialog
Figure 37: Calibration Confirmation Pop-Up
Figure 38: Delta Recalibration Save-As File Dialog
Figure 39: Delta Recalibration Load File
Figure 40: Delta Recalibration Load File Dialog
Figure 41: Recalibration Exit Confirmation Pop-Up
Table 8: Delta Recal Log File
Figure 42: Exit Delta Recalibration Utility
Figure 43: Invalid New Slope Value Error Message
Troubleshooting
Power LED on Analyzer Does Not Illuminate
User Interface Program Does Not Start
Sample Pressure Not Controlled to Appropriate Value for Concentration Measurements
UI Program "Freezes" - Does Not Update Graphs as Data Collected
Service and Maintenance
Consumables and Replacement Parts
Particulate Filter Replacement
Table 9: G2910/G2920 Replacement Parts
Figure 44: Opening G2910/G2920 Inner Cover
Figure 45: Foam Removal and Loosening Retaining Nut
Figure 46: Loosening Filter Input Nut
Figure 47: Loosening Filter Output Nut
Figure 48: Filter Removed
Figure 49: Filter Installation - Ensuring Correct Flow Direction
Cleaning
Transportation and Storage
Packing the Analyzer
Limited Warranty
Remote Data Access
Picarro Serial Communication
Table 10: Examples of Remoteaccess.ini File
The Data File Viewer
Introduction
Figure 50: File Menu
Figure 51: New Menu
The File Menu
Figure 52: Select Variables Form
Figure 53: Define Date Range Dialog
Figure 54: File Structure of Data File Viewer
New - Time Series Plot
Time Series Viewer Menus
Figure 55: Time Series Viewer
Figure 56: Time Series Viewer Menus
Figure 57: Time Series Viewer - File Menu
Figure 58: Time Series Viewer - Feature Capture
Figure 59: Time Series Viewer - Analysis Menu
Figure 60: Histogram Window - Eto
Figure 61: Time Series Viewer - View Menu
Figure 62: Time Series Viewer Canvas
Figure 63: Canvas Right-Click Pop-Up Menu
Figure 64: Image Editor Form
Figure 65: Correlation XY Plot
Figure 66: Analysis Menu
Figure 67: Results of Quadratic Fitting
External Valve Sequencer
Introduction
Figure 68: A0311 - 16-Port Distribution Manifold
Default Configuration
Figure 69: A0311-S - 16-Port Sequencer - Fast Multipoint Gas Sampler
Setting up Solenoid Valves
Setting up Rotary Selector Valve
External Valve Sequencer Software
Figure 70: Valve Sequencer GUI
Configuring a Valve Sequence
Loading and Running a Saved Sequence
Relative Humidity Conversion
Introduction to CRDS Technology
Cavity Ring-Down Spectroscopy (CRDS)
Figure 71: Schematic of Picarro CRDS Analyzer Cavity
Relating Ring-Down Time to Absorption Intensity
Figure 72: Light Intensity as Function of Time in CRDS System
Converting Absorption Intensity to Concentration
Figure 73: Absorption Spectral Curve
Spectral Precision and High Sensitivity Measurements

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G2910/G2920

Ethylene Oxide Concentration Analyzer

User Manual

Picarro Inc.

3105 Patrick Henry Drive

Santa Clara, CA 95054, USA

Phone: +1 408 962 3900

www.picarro.com

Document Number 40-0076 Revision A

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