Download
Share
Print this page
PICARRO G2123 User Manual
  1. Manuals
  2. Brands
  3. PICARRO Manuals
  4. Measuring Instruments
  5. G2123
  6. User manual

PICARRO G2123 User Manual

Analyzer for nh3/h2o
Hide thumbs

Advertisement

Quick Links

Download this manual
G2123 Analyzer for NH
/H
O
3
2
User Manual
Picarro, Inc.
3105 Patrick Henry Drive
Santa Clara, CA 95054, USA
Phone: +1 408 962 3944
www.picarro.com
Document Number 40-0051 Rev. B

Advertisement

loading
Need help?

Need help?

Do you have a question about the G2123 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for PICARRO G2123

Summary of Contents for PICARRO G2123

  • Page 1 G2123 Analyzer for NH User Manual Picarro, Inc. 3105 Patrick Henry Drive Santa Clara, CA 95054, USA Phone: +1 408 962 3944 www.picarro.com Document Number 40-0051 Rev. B...
  • Page 2 NOTICES DISCLAIMER AND RESERVATION OF RIGHTS Picarro has prepared this manual solely for the information and use by its customers as a guide for the selection, installation, operation, and maintenance of the products described.
  • Page 3 However, no guarantee is given or implied that this document is error-free or that it is accurate with regards to any specification. Picarro, Inc. has prepared this manual for use by its customers as a guide for the proper installation, operation and/or maintenance of the Picarro analyzer.
  • Page 4 12.1 POWER LED ON ANALYZER DOES NOT ILLUMINATE ................60 12.2 USER INTERFACE PROGRAM DOES NOT START ..................60 12.3 SAMPLE PRESSURE CANNOT BE CONTROLLED TO THE APPROPRIATE VALUE FOR CONCENTRATION MEASUREMENTS ......................61 P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 5 14. TRANSPORTATION AND STORAGE ....................81 15. LIMITED WARRANTY ........................82 APPENDIX A – REMOTE DATA ACCESS ....................83 APPENDIX B – THE DATA FILE VIEWER ....................87 APPENDIX C – EXTERNAL VALVE SEQUENCER .................. 100 G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 6 Spectroscopy (CRDS), on the other hand, is one thousand to one million more times sensitive. In Picarro analyzers, light from a single-frequency laser enters a cavity where three mirrors reflect the laser light as seen in Figure 1. The light...
  • Page 7 Determining absorption intensity at a specific wavelength requires comparing the ring-down time of an empty cavity to the ring-down time of a cavity that contains gas. Picarro instruments gather measurements from an “empty” cavity by switching the light to wavelengths that are not absorbed by the target molecules.
  • Page 8 The height of the peak is calculated by subtracting the maximal absorbance from the baseline absorbance. Figure 3 shows a plot of ideal optical spectra with a clean, uniform baseline on either side of the absorption peak. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 9 1.4 Spectral precision and high sensitivity measurements Picarro analyzers contain two features that provide high spectral precision: • A proprietary wavelength monitor (WLM) that measures the absolute laser wavelength to a precision that is a few orders of magnitude narrower than the spectral linewidth: Picarro’s patented WLM measures...
  • Page 10 For precise pressure control, the cavity pressure is monitored using a high- linearity pressure transducer. The system computer uses this pressure data in a feedback loop to control proportional valves that adjust the inlet and outlet gas flow of the cavity. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 11 CAUTION alerts you of a potential danger to equipment or to the user. CAUTION WARNING indicates an imminent danger to the user. WARNING REMINDER is a helpful hint to procedures listed in the text. REMINDER G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 12 Acronym Definition CRDS Cavity Ring-Down Spectroscopy Graphical User Interface centimeters millimeters ” (as in 1/4”) Inches Ammonia Water Hotbox Warm box Parts Per Million Parts Per Billion ‰ per mil °C degrees Celsius P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 13 4. SAFETY 4.1 General Safety CDRH Certification This Picarro Analyzer complies with 21 CFR Chapter 1, sub-chapter J, and is classified as a Class 1 laser system when all panels and covers are on. CE Certification This Picarro Analyzer complies with the European standards and the instrument is affixed with a CE label.
  • Page 14 WARNING laser safe service area using appropriate laser-safety glasses. The following Laser Safety Label is affixed to the inside of the analyzer: P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 15 Figure 4: Laser Safety Label Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. WARNING G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 16 5. UNPACKING THE ANALYZER 5.1 Inspect the Shipping Boxes Picarro products are inspected and tested before leaving the factory. Their packing containers have been designed to keep the equipment safe from damage during transit. Inspect the condition of the boxes upon arrival. The larger box includes the analyzer and most of the accessories.
  • Page 17 For External Solenoid Valves Nut (1) and For connecting input line to analyzer INPUT Ferrules (2) Document Packet Includes this manual, certificate of compliance, and Windows License. USB Flash Drive Contains backup software. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 18 A/C Power A power cable with connectors appropriate to your Cable (1) country is provided. Vacuum Hose (1) Hose to connect the pump to the analyzer. Pump Manual (1) Detailed instructions for pump. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 19 6. ANALYZER OVERVIEW 6.1 Intended Use The G2123 Analyzer measures concentrations of NH , and H simultaneously and precisely using Picarro’s patented Cavity Ring-Down Spectroscopy (CRDS) technology. The analyzer can be deployed in a lab or in the field, allowing in-situ analysis for trace ammonia or ambient ammonia monitoring applications.
  • Page 20 120 W (Analyzer), 150 W (Pump) Steady-state operation Mains Supply Voltage ±10% of the nominal voltage Fluctuation Minimum Rated Circuit 10 A @115 VAC Amperage 5 A @230 VAC Liquid Ingress Protection None P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 21 This section describes the setup and installation of the Picarro Analyzer. Please read and understand this section thoroughly before proceeding with the installation. Using this analyzer in a manner not specified by Picarro may result in damage to the analyzer and render it unsafe to operate. WARNING Do not attach electrical power to, or start the analyzer until after attaching and turning on the External Vacuum Pump.
  • Page 22 General Safety section on page 14 when lifting or moving the analyzer. WARNING 2. Place the Analyzer on a bench top or flat surface. Place the External Vacuum Pump near-by or on the floor. Don’t push the P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 23 7. Connect the analyzer to a power source using the supplied AC power cable. Use the AC power cables supplied with the analyzer or a similarly rated cable. Check with Picarro technical support if you have questions about power cable replacement. An inadequately rated power cable can result in CAUTION equipment damage.
  • Page 24 WARNING Making a new connection: When using new tubing, follow these steps. 1. Place the two ferrules inside the nut as shown. Figure 7: Orientation of ferrules and nut P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 25 3. Connect a monitor to one of the monitor ports. The analyzer will detect the connection and adjust the resolution to match the monitor. 4. Connect the monitor to a power source. 5. Turn on power to the monitor. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 26 Data Viewer will not be populated until actual data is being reported. This is typically within less than 30 minutes from startup, but can take up to 1 hour to stabilize depending on ambient temperature. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 27 3. Picarro Mode Switcher: When clicked, you will be led to a window that will allow you to switch between various measurement modes. Most analyzer models are configured for one mode and may not include the Mode Switcher.
  • Page 28 Do not disconnect the AC power to the analyzer, vacuum line or the AC power to the External Vacuum Pump while analyzer is operating. Damage may be caused by current surges if power is CAUTION applied while attaching or removing cables. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 29 CAUTION condensation damage to the mirrors as the instrument cools from its operating temperature. Do not turn off the pump or disconnect the vacuum line while the instrument is operating. CAUTION G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 30 If the power to the analyzer is cut-off for any reason, the analyzer will cease operation. However, when the power is reapplied, the analyzer will restart automatically. The Picarro software tools will also properly close out previous files and open new files for data collection so that previously collected data, instrument diagnostics, and other parameters recorded up to the time of power outage are retained.
  • Page 31 9. LIST OF GUI FUNCTIONS 9.1 GUI Overview The features of the Picarro analyzer GUI are identified in Figure 11 and described in the following sections. Figure 11: Layout of the G2123 Analyzer 9.2 Settings, Tools, and Help Menus Precision Pulldown Menu Left clicking on the Settings menu pulls down a menu that has one entry ‘Change GUI Mode from Standard to Service.’...
  • Page 32 Tools Menu This menu item has three entries: 1. User Calibration: Opens the user calibration window (default password is “picarro”). The password can be reset in the QuickGui.ini file in the instrument directory C:\Picarro\G2000\AppConfig \Config\QuickGUI\ under the section [Authorization] UserCalPassword = Picarro Show/Hide Valve 2.
  • Page 33 Start /Stop New Data Log Button). A new file will be generated at midnight, which will be saved to the same location as the original log file. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 34 “sensors” is selected, the analyzer’s optical cavity pressure or temperature can be viewed as well as the nominal ambient temperature of the analyzer (“DAS temp”) and the temperature of the analyzer’s electronics chamber, indicated as “warm chamber temp.” P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 35 This buffer is empty upon instrument startup, and can also be emptied by pressing the reset data buffer button in the lower-right-hand corner of the GUI. Figure 18: Data Buffer and Reset Buffer G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 36 These numbers change to reflect statistics of whatever data is in the data window. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 37 5 to 60 minutes, depending on the ambient temperature and how much time has elapsed since the last startup. 2. Entering Measurement Spectral scanning has started. Concentration measurements will be available in approximately 30 seconds. The instrument will continue G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 38 3. Pressure Stabilizing/Locked The valve control system begins to allow flow through the analyzer and stabilizes the pressure inside the cavity. 4. Measuring This is the normal mode of operation after startup has completed. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 39 After each data file has been closed it is moved to an archive directory, and a new file is started in the original location. The archive directory is C:\Picarro\G2000\Log\Archive\ and has subdirectories DataLog_Mailbox, DataLog_Private and DataLog_EventLogs with files arranged by year\month\day\hour.
  • Page 40 C:\Picarro\G2000\Log\Archive\DataLog_Private \[year]\[month]\[day]\[hour] Current Data File The current data file can be found in C:\Picarro\G2000\Log\DataLogger\. Within this directory, there are subdirectories for DataLog_Private, DataLog_User, and DataLog_User_Sync. Similarly, the archive directory has subdirectories arranged by file type. The subdirectories are further organized by \[year]\[month]\[day]\[hour].
  • Page 41 Specifies how long to keep files prior to deletion. 10.3 Setup Tool In the desktop folder called Picarro Utilities, the Setup Tool can be launched by double-clicking on its icon. The tool allows the user to configure data file saving details, including which data elements are written to data files, digital data output (via serial port or TCP/IP), remote data delivery (via email), and general GUI properties.
  • Page 42 Not all features of the analyzer are available on the serial interface. For details on how to use the serial command interface, please see the Picarro Analyzer Programming Guide (included in pdf format on the installation CD).
  • Page 43 • Command Interface: specify the port for Command Interface (COM1/COM2/ TCP/Off). Make sure there are no COM port conflicts before clicking “Apply.” After making the appropriate edits, click “Apply” to put changes into effect and then “Exit” to close the window. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 44 • Subject: subject line of the email. • Data Directory: Location of the data you want email. After making the appropriate edits, click “Apply” to put changes into effect and then “Exit” to close the window. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 45 3. Click “Apply” to put changes into effect and then “Exit” to close the window. You should now be able to access the “Show/Hide Valve Sequencer GUI” menu from the main GUI under “Tools” G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 46 Data Streaming outputs data continuously, whereas the Command Interface needs commands to prompt data output. After making the appropriate edits, click “Apply” to put changes into effect and then “Exit” to close the window. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 47 Figure 25: Command Interface Window Figure 26: Data Streaming Window G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 48 Customizing Analog Output Channels The Picarro analyzer may be optionally configured with an Electrical Interface Card (EIC) that provides up to 8 analog signals available to the user for monitoring various measurements results and analyzer parameters. The Electrical Interface tab allows you to customize each analog output channel.
  • Page 49 11.1 Slope and Offset Every Picarro analyzer ships with a default user calibration value of 1 for slope and 0 for offset. While new user calibrations will likely result in changes to both, we recommend that only offset changes are applied during more frequent calibrations.
  • Page 50 A linear best-fit equation can be calculated from the data. It is important to plot the analyzer’s reported concentration on the horizontal axis and the gas standards’ stated concentrations on the vertical axis. NOTE P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 51 Calibration values are input into the analyzer by selecting Tools > User Calibration, and then entering the slope and intercept for each species. User Calibration is a password-protected form, and the default password is “picarro”. This password can be reset in the QuickGui.ini file as previously described. NOTE...
  • Page 52 Data Recal GUI The Picarro Data Recalibration (“Data Recal”) software can be found in the “Picarro Utilities” folder on the desktop. The Data Recal software utility can be launched by double-clicking on the Data Recal Icon in the folder. Shown below is a screenshot of the window that will open.
  • Page 53 Certified and CRDS reported values are entered in the white boxes. Standards that will be used for instrument recalibration are then selected by checking the corresponding box in the first column, labeled “Used for Recal.” G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 54 Once these values are entered or selected, the “Compute” button will be active. Click “Compute” to calculate the new calibration parameters. These parameters will appear in the Calibration output section of the GUI, P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 55 The plot that the utility will generate is shown below; this plot will display two graphs. The top graph presents measurements for the recalibrated standards (calibration and QC), as well as a line fit through those points. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 56 Once you accept the new calibration parameters, the Data Recal Software Utility automatically gives you the option to save the new recalibration file. Saving these files enables you to track the instrument recalibration history. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 57 Figure 38: Delta Recalibration Load File Next, select the file that you want to load. Figure 39: File Browser Delta Recal File Option The recalibration file for this example will contain the following information: G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 58 Figure 41: Recalibration Exit Confirmation When you are finished with the calibration, you can exit the Delta Recal software utility by clicking on the “Exit” button at the bottom part of the Recal GUI. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 59 (3) the “offset + slope” calibration option is selected. This error occurs because the entered values will lead to an erroneous zero-slope value. Figure 43: Invalid New Slope Entry G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 60 The corresponding step-by-step procedures provide resolution in most cases. If, after attempting these procedures, the problem remains unresolved, please contact Picarro Technical Support. 12.1 Power LED on analyzer does not illuminate Context: Turning on the analyzer by momentarily depressing its front panel power switch should apply power.
  • Page 61 If the computer does not respond to the mouse, hold down the power switch on the front panel for a few seconds until the computer and the instrument turn off. After another few seconds, restart the analyzer by momentarily depressing the power button. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 62 There are two inline, sub-micron particulate filters before the measurement cavity. The first is user-replaceable and replacement filters can be purchased from Picarro and installed by the user. It is important to NEVER remove the filter that is directly attached to the cavity. Only change the filter immediately following the inlet at the back of the analyzer.
  • Page 63 4. Using a 5/8” wrench, loosen the retaining nut on the input bulkhead (about 1 full turn should be enough). 5. Slide the foam towards the left side of the analyzer (from the back of the analyzer) to remove it (see below). G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 64 6. Using the 9/16” and 11/16” wrenches, loosen two nuts that are connecting the filter to the analyzer. Figure 46: Nut Removal Process: Loosen the Fitting Nut first. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 65 Figure 48: Loosen Loosen Output nut with a Hold the Filter Nut 9/16” old filter steady wrench. with 11/16” 7. Slide the filter slightly towards the back of the analyzer and lift it out. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 66 1. Remove the filter from its packaging. 2. Using the 9/16” and 11/16” wrenches, attach it to the two nuts. The arrow on the filter needs to point away from the back of the analyzer. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 67 • ¼” open end wrench Procedure: 1. Completely power down the instrument 2. There are total of four case top fan Assembly 60 mm and 40 mm respectively on the top and bottom of the instrument. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 68 After disconnecting the power connectors on the back panel PCBA, flip it over to remove the front cover. 7. Locate the 60 mm fan assembly and replace with the new fan assembly. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 69 See A2000 Pump Manual for more information and servicing instructions. Overview The valves and diaphragms as well as the motor capacitors are wear parts. If the rated ultimate vacuum is no long achieved or in case of increased G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 70 Required Tools A Pump Rebuild Kit (part number S2009) can be ordered directly from Picarro and includes 4 diaphragms, 8 valves, a 46 mm diaphragm key, and a silicone rubber tube for the pump’s silencer. In addition to the above, you will also need the following tools: •...
  • Page 71 Head cover Diaphragm clamping disc with square head screw Diaphragm Diaphragm support disc Washers Connecting rod Housing 1. Use the 15 mm open end wrench to loosen the nut holding on the housing cover. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 72 Figure 56: Removing the handle 3. Using the 4 mm Allen key, loosen and remove the 6 screws in the housing cover. 4. Remove the housing cover and set aside. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 73 5. Remove the head cover and valves you would like to inspect. It is recommended to only service one side at a time. Figure 58: Visually inspect the valves G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 74 If the valves appear worn or show damage, replace with new valves provided in the S2009 Pump Rebuild Kit. Figure 60: Signs of damage to the valves and diaphragm P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 75 Do not use any sharp tools as this can damage the diaphragm. Figure 61: Lift the edges of the diaphragm 2. Align the 46 mm diaphragm key with the edges of the diaphragm support disc. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 76 Figure 63: Order of components beneath the diaphragm clamping disc Replace the old diaphragm making sure to place it with the blue side of the diaphragm facing the diaphragm clamping disc. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 77 6. Replace any washers as necessary. 7. Using the diaphragm key, locate the connecting rod and reseat the diaphragm clamping disc, diaphragm, and diaphragm support disc. Figure 65: Confirm the number of washers G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 78 Replacing the Valves and Assembling Pump Heads Figure 66: Visually inspect diaphragms 1. Visually inspect both diaphragms, they should be properly seated and locked in prior to replacing the head covers. Figure 67: Replace head covers above diaphragms P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 79 5. Replace all six screws. Screw in manually at first and then use the 4 mm Allen key to tighten. 6. Use the 15 mm open end wrench to tighten the nut connecting the housing and housing cover. Figure 69: Replace handle and align screws G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 80 • If necessary, recheck valve seats and pump chambers. 13.6 Cleaning Clean the outside of the analyzer with a clean dry cloth. Only certified service technicians should access or clean the inside of the analyzer. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 81 When shipping or relocating the analyzer, it is important to protect it from mechanical shocks. Failure to do so can compromise its performance. When shipping the analyzer, use its original packaging only. CAUTION G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 82 Product specifications for twelve (12) months from shipment. This warranty is the only warranty made by Picarro with respect to its Products and no person is authorized to bind Picarro for any obligations or liabilities beyond this warranty in connection with its Products.
  • Page 83 Not all features of the instrument are available on the serial interface. For details on how to use the serial command interface, please see the Picarro Analyzer Programming Guide (included in PDF format on the installation CD).
  • Page 84 RFC2554. If such authentication is not needed, the key is set to false. If this key is set to true, two additional keys P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 85 Username and Password must also be specified to make the connection. Examples of “RemoteAccess.ini” File [LOGGING] Logfile=c:/temp/RemoteAccessLog [NTP] Server1=time-a.nist.gov Server2=time-b.nist.gov Server3=time-a.timefreq.bldrdoc.gov Server4=time-b.timefreq.bldrdoc.gov Server5=time-c.timefreq.bldrdoc.gov Server6=time.nist.gov Server7=time-nw.nist.gov UpdateClock=1 [DIALUP] ConnectionName=Picarro Dialup Access Username=user Password=password Number=14085551212 [EMAIL] Server=smtp.servername.org Directory=c:/picarro/mailbox G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 86 From=instrument@picarro.com To1=recipient1@site1.com To2=recipient2@site2.com Subject=CRDS data from Picarro instrument UseAuthentication=0 P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 87 Open H5 File > Open H5 opens a Picarro data file (HDF5 format) for data analysis and visualization. After opening the data file, you can create a new time series plot. Refer to New Time Series Plot for more information.
  • Page 88 H5 file. The variables are then listed in the left panel, and users can use “>>” button to move variables to the right panel for concatenation. Figure 72: Select Variables Form P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 89 Data files are saved in directory trees named by date and time option. Picarro software saves data in a directory tree that is named by the creation year, month, and day. Select this option if the target folder has this file structure.
  • Page 90 This is because the time extracted from file NOTE name is different from the data acquisition time. Data File Viewer expands the specified time and column name “fineLaser- Current_1_controlOn” with “fineLaserCurr_1_ctrlOn”. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 91 The next section describes the options available on the Time Series Viewer menu bar. Refer to Time Series Viewer Canvas on page 95 for information the Time Series Viewer UI features and options. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 92 If a feature is not captured, it will be omitted when the configuration file is loaded. CAUTION Depending on the features captured, loading a configuration file can have different effects. For example: • If all features are captured, a saved workplace is reproduced. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 93 Use Analysis > Statistics to calculate mean, standard deviation and peak to peak for all plots in the current window. Histogram Use Analysis > Histogram to generate a histogram of data as shown below. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 94 Allan Standard Deviation Plot Use Analysis > Allan Standard Deviation Plot to create an Allan Standard Deviation plot (versus a standard deviation plot) for data in the current window. See Allan Variance for more information. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 95 • Left click and drag: Zooms into the selected area of the plot. • Left click and drag with the SHIFT key down: Pans the plot. • Left click and drag with CTRL key down: Zooms out from the plot. G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 96 • x[0]: Sets the earliest time of the dataset as the minimum of the X- axis. • Time zone: Sets the time zone for date/time variables. This defaults to the local time zone. • Label: Specify a label for the X-axis and the Y-axis. P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 97 For a block average, Size specifies block size in unit of a minute. For a moving average, Size specifies subset size in unit of data points. Averaging is performed after the Filter and Expression are performed. REMINDER G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 98 • Fitting allows you to specify one of four fitting methods to include in the Correlation/XY plot: Linear fit: Specifies to fit to linear function y = c x + c Quadratic fit: Specifies to fit to quadratic function y = c x + c P/N 40-0051-Rev B G2123 Analyzer User Manual...
  • Page 99 After applying any of the above Analysis options, the results, statistics, or fitting function with coefficients are displayed in the lower portion of the Correlation Plot window. Figure 87: Results of Quadratic Fitting G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 100 Tools menu in the GUI. Default Configuration For all models of Picarro analyzers, the rotary valve control is disabled in the factory default setting. The solenoid valve control, however, is ready to use by default for all solenoid valve connectors.
  • Page 101 The 9-pin female, connector cable (female) should mate with its corresponding, male port of the analyzer and labeled “MPV.” Please note the 9-pin connector cable is not supplied with the instrument. Figure 88: 8-port Valve Setup G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 102 Valve Sequencer Software The Valve Sequencer software allows the user to set steps in which solenoid valves are turned on/off and the rotary selector valve is set to a single position. The Picarro valve sequencer window appears below: Figure 89: Valve...
  • Page 103 To run a sequence file, press “Enable Sequencer.” This button will turn to “Disable Sequencer” once the sequence starts. (The sequencer should be activated if it was disabled, but not necessarily to change from one sequence to another.) The sequence will repeat itself indefinitely until G2123 Analyzer User Manual P/N 40-0051-Rev B...
  • Page 104 These codes can be used as event timing flags. For example, if no solenoid valves are present, the codes will be recorded regardless of whether a valve is connected or not. P/N 40-0051-Rev B G2123 Analyzer User Manual...