Dewetron DEWE3-A4, Technical Reference Manual

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Maintenance and service
The information in this section is designed for use by qualified service personal.
Service interval
Clean dust from the chassis exterior/interior and exchange filter foam based on the operating environment.
Cleaning
Clean surface of the chassis with dry lint-free cloth.
Use a dry velocity stream of air to clean the chassis interior.
Do not use harsh chemical cleaning agents.
NOTICE
Many components within the chassis are sensitive to static discharge damage. Always wear a ground
wrist strap and service the unit only in static-free environment.
WARNING
Risk of injury
Disconnect all cables before servicing the unit.
Updates
Windows and antivirus/security software
Before installing Windows software updates consult with DEWETRON for compatibility guidance. Also keep in mind
that the use of any antivirus or other security software may slow down your system and may cause data loss.
Software updates
NOTICE
The system BIOS is protected by password. Any change in the BIOS may cause a system crash. When
the system is booting, do not press ESC-button on keyboard. This may clear the BIOS settings and cause
system faults.
Any change in the file structure as deleting or adding files or directories might cause a system crash.
Before installing software updates contact DEWETRON or your local distributor. Use only software
packages which are released by DEWETRON. Further information is also available in the Internet (http://
www.dewetron.com).
After power off the system wait at least 10 seconds before switching the system on again. Otherwise the
system may not boot correct. This prolongs also the life of all system components.
!
maIntenance and ServIce
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DEWE3-A4 • Technical reference • Printing version 1.0.2 • March 17, 2021