For Safe Handling

Precautions on Proper Operation (cont’d)

About Changes in Computer Settings

Do not change the following system settings of your PC. These are set up at the optimum conditions for operation of the S-3400N SEM before shipping.

(a)Connection to the USB ports

This instrument uses a USB port for communication between the PC and the internal microprocessor. The USB port number 1 is assigned to the instrument. Therefore, if external storage devices or printers are to be connected to USB ports, ports that are available to users are subject to restrictions.

(b)Monitor screen setting

Monitor properties need to be set at 1280×1024 pixels for the desktop area, true color (24 bit) mode and 60 Hz to 70 Hz for the refresh rate. Using other resolution, faster refresh rate or 256 color mode may cause an abnormal screen display.

(c)Sub programs

This instrument operates using many DLL programs along with the control program. Deletion of files in the Windows directory or change of the registry will cause troubles. Also do not delete tasks and processes using the task manager.

(d)Screen saver settings

The screen saver can cause to exert adverse impact on the system, and to interfere with the operation of the system. For using the screen saver, read the following carefully.

(1)Use only the screen saver of the windows standard.

The operation of the screen savers other than the Windows standard are not guaranteed.

(2)Password Protection should not be set on a screen saver. Password Protection can prevent SEM images to display properly when the system wakes up from the screen saver mode. . If you need to lock Windows when leaving your work site, the option to activate Password Locking from the S-3400N Control Program should be used.

See 3.9.19 Password Locking of Windows.

SAFETY - 15