Clear and Sanitize Procedures
Table1: Volatilememorydevices
Typ e and
minimum size Function
Type of user
info stored
Backed-up
by battery
Method of
modification
Data input
method Location
User
accessible To clear To sanitize
SRAM, 16 kB
(All models)
Processor memory
None (working
processor
memory)
No Indirect
System
resources
Main board No
Remove power from
the instrument for at
least 30 seconds
Remove power from
the instrument for at
least 30 seconds
SRAM, 32 MB
(All FCA3000,
MCA3000
Series)
Firmware run time
storage, User settings,
Measurement buffers
User data, user
settings
No Indirect
System
resources
Main board No
Remove power from
the instrument for at
least 30 seconds
Remove power from
the instrument for at
least 30 seconds
SRAM,128 MB
(All FCA3100
Series)
Firmware run time
storage, User settings,
Measurement buffers
User data, user
settings
No Indirect
System
resources
Main board No
Remove power from
the instrument for at
least 30 seconds
Remove power from
the instrument for at
least 30 seconds
Table 2: Nonvolatile memory devices
Typ e an d
minimum size Function
Type of user
info stored
Method of
modification
Data input
method Location
User
accessible To clear To sanitize
NVRAM, Flash,
8MB
(All models)
Firmware storage, user
data, and user settings
User data
(explicitly stored
by user), User
settings
Direct Loading a
Main board
configuration file
or by using the
user interface
Main board Yes Use the Total Reset
function to clear
NVRAM
1
Use the Total Reset
function to clear
NVRAM
1
1
The Total Reset function writes 0xFF to all flash sectors that hold stored user data (saved measurement data).
The Total Reset function also resets flash sectors that hold current instrument settings (including power-on settings, but excluding instrument configuration settings) to their default (factory reset) settings. However, due to
internal sector organization of the flash memory, and depending on the size of the setting data, settings may be stored in two flash sectors. Parts of previous setting data might exist in a flash sector with the current setting
data. The Total Reset function sets the current settings storage memory to the default settings, but previous configuration settings data can persist in the noncurrent-settings locations within memory sectors.
2 FCA3000, FCA3100 & MCA3000 Series Declassification and Security