Pasco Xplorer-GLX Users’ Guide Manuel d'utilisateur Page 67
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Xplorer GLX Users’ Guide 61
2. Press . The GLX starts measuring, but not recording. A blinking flag
icon ( ) appears in the upper right-hand corner. Another flag icon appears
at the left side of the first table row.
3. Press the right arrow key. Notice that the flag icon moves to first cell of one
column. If there is another column displaying collected data (not manually
entered) press the right arrow again to move the icon to that column. This
icon indicates which cell will collect data when you press . If the icon is
at the left end of the row, all cells in that row will collect data.
4. Use the arrow keys to select which cell or cells in the first row you wish to
collect data.
5. Press .
6. If you have selected the manually entered data option, the GLX prompts you
to enter data. Type in the data and press (OK).
7. To collect more data, use the arrow keys to position the flag icon on the sin-
gle cell or row where you want to collect data. If the selected cells already
contain data, that data will be overwritten.
8. Press .
9. Repeat steps 7 and 8 to record additional samples.
10. When you have finished recording all samples, press .
Why Use Cell-selective Sampling?
Redo a Sample Cell-selective sampling is useful for redoing data points. For
instance, suppose that you are measuring the pH of several different solutions.
You place the pH probe in a solution and press to record a sample. You then
realize that you made a mistake—you forgot to wait for the measurement to sta-
bilize. To correct the mistake, press the up arrow to return the flag icon to the first
row. Press again to overwrite the data on that row with a new sample.
You can redo any sample even if you have recorded subsequent samples; use the
arrow keys to return the flag icon to any previously recorded row or cell and
press . Remember to move the icon back to an empty row if you want to take
a new sample without overwriting an old one.
Alternate Between Sensors If you have two or more sensors connected to
the GLX, you may want to record single samples from each sensor separately. To
do this you would select a single cell (instead of a whole row) for each sample.
For example, you have several solutions and you would like to measure the pH
and conductivity of each. Place the pH probe in the first solution. Press the right
arrow key to select a single cell in the pH column. Press to record only in
that cell. Remove the pH probe from the solution and place the conductivity
probe in the same solution. Use the arrow keys to select the cell in the conductiv-
ity column (in the same row). Press to record into that cell. Repeat this pro-
cess for all other solutions. In this way you will record pH-conductivity data pairs
without having to make pH and conductivity measurements simultaneously.
Only selected cell will collect data
All cells in selected row will collect
data
Only selected cell will collect data
Previously recorded data in selected
row will be overwritten
F1
- Users’ Guide 1
- About this Guide 2
- Technical Support 2
- How to Store the 3
- Contents 5
- Introduction 9
- Included Equipment 10
- Quick Start 11
- Overview of the GLX 12
- Shutting Down 13
- The Record Button 14
- Home Screen 15
- Bottom Row 16
- 12 Overview of the GLX 18
- Chapter 1: Displays 19
- Active Fields 20
- Choosing Data to Display 21
- Data Cursor and Coordinates 22
- Graph Function Keys 22
- Scale and Move with a Mouse 23
- F3 Tools Menu 23
- F4 Graphs Menu 28
- Data Annotation 31
- Annotation Menu 32
- Note Editor Dialog Box 33
- To Open the Table 34
- Table Scrolling 35
- Table Function Keys 35
- F2 Edit Cell 36
- F4 Tables 37
- Manually Entered Data 38
- Editing an Existing Data Set 40
- Xplorer GLX Users’ Guide 35 41
- 36 Table 42
- Digits Display 43
- To Open the Meter Display 44
- Auto Scale and Reset 44
- Chapter 2: Utility Screens 45
- Output Settings 46
- Calculator 47
- Algebraic Calculations 48
- Graphing Equations 50
- Sensor-based Calculations 51
- Calculation 52
- Calculator Function Keys 54
- F2 [Data] 55
- F3 Graph 55
- Output-control Calculations 56
- Special Functions 57
- Output-control Functions 57
- Logic Operators and Functions 58
- Audio Temperature Indicator 58
- Notes Screen 59
- Stopwatch 60
- Chapter 3: Settings and Files 61
- Sensor Settings 62
- Sensors Function Keys 63
- F3 Microphone 64
- ScienceWorkshop 65
- Manual Sampling Mode 66
- Timing Screen 68
- Constants 69
- Measurements 69
- Working with Multiple Timers 70
- Timing Screen Function Keys 70
- Digital Adapter Options 73
- 68 Timing Screen 74
- Data Properties 75
- Calibration 77
- For step-by-step 78
- After offset calibration 79
- 74 Calibration 80
- Calibration Procedures 81
- 76 Calibration 82
- Data Files Screen 84
- Navigating in the File List 85
- Data Files Function Keys 86
- Move or Copy File 87
- RAM and Flash 88
- File Size Limits 88
- File Transfer 89
- Backup and Restore GLX Files 89
- GLX-to-GLX File Transfer 90
- Settings Screen 91
- Language Options: 92
- Settings Screen Function Keys 93
- 88 Settings Screen 94
- Data Source Menus 95
- Multipress Text Input Mode 96
- Using a USB Keyboard 96
- Scientific Notation 97
- Printing 97
- 92 Printing 98
- Operation 99
- GLX Storage 100
- Battery Disconnection 100
- Battery Capacity 101
- Resetting 102
- Operating Temperature 103
- 98 Operating Temperature 104
- GLX with DataStudio 105
- Transferring Files 106
- File will be uploaded to 107
- 102 GLX with DataStudio 108
- GLX Simulator 109
- Screen Capture 110
- Screen Mirroring 110
- Sample Activities 111
- Activity 1: Calorimetry 113
- Analysis 114
- Xplorer GLX Users’ Guide 109 115
- 110 Calorimetry 116
- Background 117
- Before You Begin 117
- Procedure 118
- Data Collection 123
- 120 Newton’s Law of Cooling 126
- Variation 127
- GLX Set-Up 130
- Place the dashed box 135
- 134 Capacitor Discharge 140
- Interference 141
- Activity 10:Beat Frequency 143
- 140 Beat Frequency 146
- Shortcut Summary 149
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