ALS SEC2020 User manual

Document Version: 2.9.0
Last Revision: April 2022
SEC2020 SPECTROMETER SYSTEM
USER’S GUIDE
- SOFTWARE -

SEC Spectra User's Guide Contents
https://www.als-japan.com 2
Contents
1. About SEC Spectra.........................................................................................................................4
2. Minimum System Requirements...................................................................................................5
3. Installing SEC Spectra ....................................................................................................................6
3-1. Before Installation................................................................................................................6
3-2. Installing SEC Spectra...........................................................................................................6
3-3. Installing Device Driver ........................................................................................................9
3-4. Removing SEC Spectra .......................................................................................................12
3-5. Installing .NET Framework 3.5 ...........................................................................................12
4. Getting Started with SEC Spectra................................................................................................16
4-1. Starting SEC Spectra...........................................................................................................16
5. Spectrum Measurement .............................................................................................................18
5-1. Before the Measurement...................................................................................................18
5-2. Creating a Spectrum Measurement...................................................................................18
5-3. Change Spectrum Acquisition Settings..............................................................................21
5-4. Graph Toolbar ....................................................................................................................22
5-5. Show Spectrum Data..........................................................................................................22
5-6. Saving a Spectrum..............................................................................................................22
5-7. Loading Saved Spectrum....................................................................................................22
5-8. Print and Preview of Spectrum..........................................................................................22
6. Absorbance Measurement..........................................................................................................23
6-1. Creating an Absorbance Measurement.............................................................................23
6-2. Absorbance of Sample .......................................................................................................29
6-3. Graph Toolbar Icons...........................................................................................................30
6-4. Saving Absorbance Measurement.....................................................................................32
7. Transmittance Measurement......................................................................................................34
7-1. Creating a Transmittance Measurement ...........................................................................34
7-2. Setting Measurement Conditions......................................................................................34
7-3. Transmittance of Sample ...................................................................................................35
7-4. Saving Transmittance Measurement .................................................................................36
8. Reflectance Measurement ..........................................................................................................37
8-1. Creating a Reflectance Measurement ...............................................................................37
8-2. Setting Measurement Conditions......................................................................................37
8-3. Reflectance of Sample .......................................................................................................38
8-4. Saving Reflectance Measurement .....................................................................................39
9. Strip Chart (Recording Specific Wavelength) ..............................................................................40

SEC Spectra User's Guide Contents
https://www.als-japan.com 3
9-1. Creating a Strip Chart Measurement.................................................................................40
9-2. Toolbar Icons......................................................................................................................44
9-3. Saving Strip Chart...............................................................................................................46
9-4. Loading Strip Chart File......................................................................................................47
10. Time Sequence Measurement (Recording Full Wanvelength)....................................................48
10-1. Time Sequence Window....................................................................................................48
10-2. Settings of Time Sequence Measurement.........................................................................49
10-3. Recording Time Sequence Measurement..........................................................................51
10-4. Loading and Playing Time Sequence File...........................................................................52
11. Relative Irradiance Measurement...............................................................................................54
11-1. Creating a Relative Irradiance Measurement ....................................................................54
11-2. Relative Irradiance Sample Measurement.........................................................................56
11-3. Saving Related Irradiance Measurement...........................................................................56
12. Concentration Measurement......................................................................................................57
12-1. Creating a Concentration Measurement ...........................................................................57
12-2. ConcentrationSettings .......................................................................................................58
12-3. Start Measuring the Concentration of Test Solution .........................................................62
12-4. Concentration Setting Icon ................................................................................................62
12-5. Saving the Concentration Measurement...........................................................................63
13. Trigger Mode Settings .................................................................................................................64
13-1. Enable Trigger Mode..........................................................................................................64
13-2. Trigger Off (Normal Mode) ................................................................................................66
14. Software Operation Methods .....................................................................................................67
14-1. File Menu ...........................................................................................................................67
14-2. View Menu.........................................................................................................................75
14-3. Application Settings ...........................................................................................................78
14-4. Default Layout....................................................................................................................85
14-5. Quick Adjustment Field......................................................................................................86
14-6. Graph Toolbar Icons...........................................................................................................87
14-7. Spectrum Data Pane ..........................................................................................................95
14-8. Saving Currrent Spectrum..................................................................................................98
14-9. Other Tool Bar Icons........................................................................................................ 102
15. Spectrum Correction Features ................................................................................................. 108
15-1. Electronic Dark Correction.............................................................................................. 108
15-2. Linearity Correction ........................................................................................................ 110
16. Contact Information ................................................................................................................. 111

SEC Spectra User's Guide 1. About SEC Spectra
https://www.als-japan.com 4
1. About SEC Spectra
SEC Spectra is a software program for the portable spectrometers system “SEC2020 Spectrometer
system”. It offers a wide variety of optical measurements including spectrum, absorbance, transmittance,
reflectance, Relative Irradiance, and concentration.

SEC Spectra User's Guide 2. Minimum System Requirements
https://www.als-japan.com 5
2. Minimum System Requirements
Before installing SEC Spectra, ensure that your computer meets the following minimum requirements:
Minimum System Requirements
Processor
1 GHz or higher
RAM
4 GB or higher
Hard Disk
100 MB or higher
Screen Resolution
1024 x 768 or higher
Operating System
Windows 10, Windows 11
Software
Microsoft .NET Framework 3.5*
IMPORTANT：Versions other than Microsoft .NET Framework 3.5 will not work.

SEC Spectra User's Guide 3. Installing SEC Spectra
https://www.als-japan.com 6
3. Installing SEC Spectra
3-1. Before Installation
Before installing SEC Spectra, ensure that you have the administrator privilege to the computer.
Note: If your PC does not have the Windows feature "Microsoft .NET Framework 3.5" installed, please
install it before installing SEC Spectra. The detailed procedure is described in "3-5. Installing .NET
Framework 3.5 ".
The spectrometer should not be connected to the PC during installation and uninstallation of SEC
Spectra.
3-2. Installing SEC Spectra
Insert the USB memory supplied with the device into your PC. There are two folders in the USB
memory, "Manual" and "SEC Spectra _ ** (software installer)". Open the "SEC Spectra_**" folder and
double-click "setup.exe" to start the program installation.
The setup wizard starts up. On the Welcome screen(Figure 3-1), click Next to proceed the installation.
Figure 3-1. Setup Wizard -- Welcome

SEC Spectra User's Guide 3. Installing SEC Spectra
https://www.als-japan.com 7
On the Select Installation Folder screen, select Everyone or Just me and click Next.
Figure 3-2. Setup Wizard -- Select Installation Folder
On the Confirm Installation screen, click Next.
Figure 3-3. Setup Wizard -- Installation Complete

SEC Spectra User's Guide 3. Installing SEC Spectra
https://www.als-japan.com 8
If a Windows security alert is displayed, select Run to proceed. Program will execute the installation,
please wait for a while.
Figure 3-4. Setup Wizard -- Installation Complete
When you see the Installation Complete window(Figure 3-5), it means that SEC Spectra has been
successfully installed. Click Close to finish.
Figure 3-5. Setup Wizard -- Installation Complete

SEC Spectra User's Guide 3. Installing SEC Spectra
https://www.als-japan.com 9
3-3. Installing Device Driver
Normally, device drivers for supported spectrometers will be installed with SEC Spectra as part of the
setup process. The device is usually displayed as "Taurus" in Device Manager (Figure 3-6).
Figure 3-6. Taurus is displayed correctly in Device Manager
The driver may not be installed due to unexpected errors. Figure 3-7 shows an example when the
device is not recognized correctly. It will be recognized as a device called "SCAN" with a "!" mark.
Figure 3-7. when the device is not recognized correctly
In that case, you need to install the driver manually.

SEC Spectra User's Guide 3. Installing SEC Spectra
https://www.als-japan.com 10
Follow the steps below to manually install the driver:
Connect the spectrometer to a computer and start "Device Manager". If you see an unknown icon like
"SCAN" as shown in Figure 3-7, right click on it and select "Update driver".
Figure 3-8. Select "Update driver" in Device Manager
Select "Browse my computer for driver software" and manually specify the folder containing the
"TAURUS" device driver and update the driver.
Figure 3-9. Select "Browse my computer for driver software" in Update Drivers