Hitachi F7000 Instruction Manual

							7.3.2 
7 - 7 
Right-click the mouse on the spectrum window.    A menu box as in Fig. 
7-6 will appear.    Select “Scale” from the menu box. 
 
 
 
Fig. 7-6 
 
 
A window as in Fig. 7-7 will appear.    The window contains the same 
setting items as in 7.3.1. 
 
 
 
Fig. 7-7 
7.3.2 Change by 
Right-clicking 
Mouse 
Scale 
						

							7.3  Scale Change 
7 - 8 
(1)  The scale can be expanded with the left button of the mouse. 
Bring the trace cursor onto the spectrum window (Fig. 7-3). 
 
(2)  Specify an area to be expanded.    Draw a rectangle while holding 
down the left mouse button, and then release the button.     
The area will be expanded. 
 
 
 
 
Fig. 7-8 
 
 
 
 
Fig. 7-9 
 
(3)  For returning to the original scale, click the 
 button. 
 
7.3.3 Change by 
Using Left 
Mouse Button 
 
Draw a rectangle. 
						

							7.4 
7 - 9 
7.4    Change of Graph Axis 
 
The X axis of a graph can be changed on a spectrum. 
Click the 
  (properties) button and select the Axes tab. 
 
 
 
Fig. 7-10  Axes Tab 
 
 
•  X Axis mode 
The X axis is indicated in either unit below. 
 
◊ Wavelength 
Indicated in wavelength (nm). 
 
◊ Wave number 
Indicated in wavenumber (Kcm
-1, K = 1000) 
x·λ = 10000 (x: Kcm-1, λ: nm) 
 
  
						

							7.5    Change of Spectral Line 
7 - 10 
7.5    Change of Spectral Line 
 
You can change the line pattern and color of a spectrum.    Select the 
Lines/Points tab in the Spectrum Properties window.    A tab page as in 
Fig. 7-11 will appear. 
 
 
 
Fig. 7-11  Lines/Points Tab 
 
 
The above page contains the following setting items. 
 
1 Graph 
Select a spectrum for which you want to set a line pattern. 
2 Display mode 
Data can be displayed in the following modes. 
• line 
• point 
•  line & point 
3 Line pattern 
Specify a line pattern such as dotted line or solid line. 
4 Point style 
Select a point style to be used for printing or displaying a graph. 
1 
2 
3 
4 
5 
6  
						

							7.5 
7 - 11 
5 Line color 
Upon clicking Select Color, the Color window appears.     
This window allows you to change the color of spectral line and 
point.    There are 48 basic colors.    By clicking Define Custom 
Colors, a smaller window is added on the right side of the Color 
window as shown in Fig. 7-12.    You can now add 16 colors.   
These colors are usable for the spectral lines and points.     
For defining a color, you can enter values for Hue, Sat (saturation), 
Lum (luminance), Red, Green and Blue.   
Upon completion of the definition, click Add to Custom Colors.  
Then select a desired color from the defined ones. 
 
 
 
Fig. 7-12 
 
 
6 Style 
Specify a line thickness. 
  
						

							7.6    Detection of Spectral Peaks 
7 - 12 
7.6    Detection of Spectral Peaks 
 
The spectral peaks and valleys are detectable automatically. 
Click the 
  (peak detection) button on the Processing toolbar.     
A window as in Fig. 7-13 will appear.    Set an integration method, 
threshold and sensitivity. 
(Or select the Peak Finding Parameters command from the Data 
menu.) 
 
 
 
Fig. 7-13 
 
 
1 Integration method 
The following three methods are available and any one may be 
selected for the peak wavelength.    But the area calculation result 
indicated in the peak table will vary with the selected method. 
• Rectangular 
• Trapezoid 
• Romberg 
For details of each method, refer to APPENDIX D.  
						

							7.6 
7 - 13 
2 Threshold 
Set a detection limit of peak and valley (a difference between the 
peak and valley) on the photometric value axis.    Peaks and valleys 
below the set value will not be detected. 
Input range:    0.001 to 1000 
 
 
 
 
 
3 Sensitivity 
Select the number of data points in the X-axis direction.     
For detection of sharp peaks, select a sensitivity level of “1,” and for 
broad peaks, select “8.” 
• 1 
• 2 
• 4 
• 8 
 
 
Peak
Valley
Minimum difference 
between peak and valley  
						

							7.7    Indication of Peak Information on Spectrum 
7 - 14 
7.7    Indication of Peak Information on Spectrum 
 
Click the 
  (properties) button on the Processing toolbar and select 
the Display tab. 
(Or select the Spectrum Properties command from the Edit menu.) 
 
 
 
Fig. 7-14  Display Tab 
 
 
1 Show trace display 
By putting a check mark here, the trace cursor is displayed to 
enable tracing when the data processing window is opened. 
2 Show gridlines 
By putting a check mark here, the monitor window and data 
processing window can be displayed with gridlines. 
3 Grid increment 
Specify a gridline width.    This parameter becomes valid when a 
check mark is put at “Show gridlines.” 
4 Annotations 
Peak information can be indicated on a spectrum.    Select items to 
be displayed on a spectrum and click OK or Apply. 
• None 
Only a spectrum is displayed. 
• Peak Number 
Peak number is indicated on a spectrum.   
2 
3 
1 
4  
						

							7.7 
7 - 15 
• Peak WL 
Peak wavelength is indicated on a spectrum. 
• Valley Number 
Valley number is indicated on a spectrum. 
• Valley WL 
Valley wavelength is indicated on a spectrum. 
•  Peak and Valley Number 
Peak number and valley number are indicated on a spectrum. 
•  Peak and Valley WL 
Peak wavelength and valley wavelength are indicated on a 
spectrum. 
• Peak Data 
Peak data is indicated on a spectrum. 
• Valley Data 
Valley data is indicated on a spectrum. 
•  Peak WL, Peak Data 
Peak wavelength and peak data are indicated on a spectrum. 
•  Valley WL, Valley Data 
Valley wavelength and valley data are indicated on a spectrum. 
•  Peak WL, Peak Data/Valley WL, Valley Data 
Peak wavelength, peak data, valley wavelength and valley data 
are indicated on a spectrum. 
 
 
 
Fig. 7-15    Example of Indication of Peak Wavelength 
 
 
  
						

							7.8  Smoothing of Spectrum 
7 - 16 
7.8  Smoothing of Spectrum 
 
Click the 
  (smoothing) button on the Processing toolbar.     
A window as in Fig. 7-16 will open. 
(Or select the Smoothing Parameters command from the Data menu.) 
 
 
 
Fig. 7-16 
 
 
Set the following parameters in the above window. 
 
1 Function type 
Select a smoothing method from the following three.    For details, 
refer to APPENDIX D. 
• Savitgky-Golay 
• Mean 
• Median 
2 Smoothing order 
Set a smoothing order. 
Input range:    2 to 4 
3 Number of points 
Set the number of points to be used in calculation. 
Input range:    5 to 101, Initial value:    7 
4 Number of times 
Set the number of smoothing operations. 
Input range:    1 to 100 
5 Calculate 
This button executes smoothing. 
 
For returning to the original status (before calculation), click the 
 
(reset) button. 
 
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3 
1 
4 
5