Use the New command to create new test/screen condition files if the Test/Screen Library does not contain a test/screen condition file you can edit to resemble the one the package will experience. Press Esc at any point to cancel.

• Select the New command from the Test/Screen menu. A Create a New Test/Screen window appears (see Figure 42). The window contains two fields: File Name and Environment Description.

  Figure 42. Create a New Test/Screen window  
• Type a file name and press Enter. The highlighted moves to the Environment Description field.
• Type a description of the test/screen environment. You can type a description of up to 25 characters. Press Alt-A or click the mouse on Accept. A window appears informing you that these descriptions have been saved. Press Esc. Next, a Select Screens window appears (see Figure 43).

• Select the screens you want the test/screen conditions file to use and press Enter. A check mark appears next to the screens you select, indicating they are tagged for inclusion in the file. Pressing Enter again untags them and excludes them from the file. Click on Tag/Untag to tag or untag all screens at once.

Notice that the number and types of parameter fields available for editing in the next step depends on which screens you select. For example, if you select only the Temperature screen, then only temperature parameters will be available for editing.
 

• Press Alt-C or click on Close to accept the screen selections. An Edit Screen Parameters window appears. Define the screen parameters using the same procedures you learned when defining environment parameters in Section 8.2.2.1.2 (see Figure 44). You can edit fields highlighted in red. Those highlighted in black cannot be edited.

  Figure 44. The Edit Screen Parameters window

Notice the number of fields available for editing is also influenced by whether you choose Ramp, Cyclic, or Steady in the Temperature, Relative Humidity, and/or Pressure modes categories, and by whether you choose Random, Harmonic, or Shock in the Vibration highlMode category.
 

• Close to accept all parameter values and activate the test/screen conditions. Press Esc to cancel.

The Edit option contains three commands:

• Parameter enables you to change the parameters of any test/screen condition.
• Comments enables you to read and edit and add information for a test/screen condition, such as its purpose.
• Screens enables you to add or delete screens from a test/screen condition file.

The Parameter command operates as much the same way as the New command in the File menu (see Section 8.3.2.1.2).

• Select the Parameter command from the Edit option menu. The window in Figure 45 appears.
Figure 45. The Parameters window  
• You can now edit the parameters of the environment, using the procedures outlined in 8.3.2.1.2.

To view information about a test/screen condition, press F1. A window containing a description of the test/screen appears.

Some test/screen conditions have a Acceleration Power Spectral Density (APSD) profile in their Parameters window. To view it, click on APSD or press Alt-G. A graphics window shows the PSD-versus-frequency profile for the test/screen condition.
 

• Type Alt-C to Close the window and save your changes. Press Esc to exit without saving. Either action returns you to the Tests/Screen menu.

Use the Comments window to read, edit, or add information about test/screen conditions.

• Select the Comment command from the Edit option menu. The window in Figure 46 appears.

• Read, edit, or write comments. Existing windows may not have room for additional comments.
• Type Alt-C to exit and save your changes. Press Esc to exit and cancel your changes. Either action returns you to the Tests/Screen menu.

Before adding or deleting screens in a test/screen condition file, first consider duplicating the file with the Saveas command, thus preserving the existing file.

• Activate the test/screen condition file you want to apply the Screens command to.

 
 
• Select the Screens command from the Edit menu. A Select Screens window appears (see Figure 47).
Figure 47. The Test/Screens window  
• To add a screen to the file, select it and press Enter or the left mouse button. A check mark appears to the left of the screen name, indicating it is tagged and will be included in the file. To delete a screen from the file, select a tagged screen and press Enter or the left mouse button. The check mark disappears, and the screen will not be included in the file.

Use the Tag/Untag All hot key in the lower left corner of the window to tag or untag all entries in the window at once.
 

• Close the window by pressing Alt-C to save your changes. Press Esc to exit without saving changes. Either action returns you to the Tests/Screen screen. At this point, select the Parameters command and edit the parameter values, if necessary.