Technical data

Memory Clearing, Sanitization and Removal Procedures

Erase and Overwrite All

This function is available in MXG Series A, PSG, and ESG instruments only. It is not available in MXG Series B

and EXG instruments. Use Erase and Sanitize All instead.

This function performs the same actions as Erase All, plus it clears and overwrites various memory types, as

described below.

Memory Type Models Description

SRAM

(Battery-

backed)

Not MXG All addressable locations are overwritten once with random

characters.

CPU Flash All User data is erased with flash chip block-erase commands. No

overwrite is performed. During erasure, the system files are

temporarily moved to main memory and are then restored to

CPU Flash when erasure is complete.

Extended

Persistent

Memory

(Flash)

MXG N5162A/82A

only

The file system is formatted, then all addressable locations are

overwritten with random characters, and then the file system is

reformatted again.

Hard Disk PSG E8267C,

E8267D with

Option 005 only

ESG E4438C

All addressable locations are overwritten once with a random

character.

Flash Drive PSG E8257N with

Options 008 and 340

PSG E8257D,

E8663D with

Option 008

PSG E8267D with

Option 009

All addressable locations are overwritten once with a random

character.

Model Key Sequence

MXG (Series A) File > More > Security > Erase and Overwrite All > Confirm Overwrite

PSG

ESG

Utility > Memory Catalog > More > Security > Erase and Overwrite All >

Confirm Overwrite