How to sanitize a working instrument
Sanitize means that all data in non-volatile memory is changed or overwritten such that the original data is no longer in memory, and that
the data cannot be recovered using any known technology. You typically do a sanitize operation when you:
• Turn the instrument over to another person or department
• Move an instrument (temporarily or permanently) from a secured area to a nonsecured area
• Send an instrument to Tektronix for calibration and/or repair
Sanitizing is done through commands on the instrument. To sanitize the instrument:
1. Remove any USB memory devices from the instrument, and store or destroy the USB memory devices in accordance with your
organization’s guidelines.
2. Clear the Network Configuration password (if set):
a. Enter the instrument’s IP address into a Web browser on a PC that has network access to the instrument.
b. Click the Security for Network Config link on the left side of the screen.
c. Click Submit:
• If a password was set for this function, you are requested to enter the password. If the password is accepted, the password is
set to blank (the default setting of the access password fields).
• If a password was not set for this function, the screen displays the message that the password was successfully changed (to a
blank password).
3. Clear the network mDNS Hostname and description:
a. Enter the instrument’s IP address into a Web browser on a PC that has network access to the instrument.
b. Click the Network Configuration link on the left side of the screen.
c. Delete any existing text in both of the Host Settings fields.
d. Click the Host Settings Submit button. A message appears stating that the field is empty, and will be configured to the original
factory default value.
e. Click OK. The message closes and the fields are restored to their original factory settings.
4. Clear the Ethernet port settings:
a. Disconnect the Ethernet cable from the instrument.
b. Open the Utility > I/O menu.
c. Clear all information from the Host Name, Domain Name, and Service Name fields.
d. Click the Network Address Manual button.
e. Manually change the Instrument IP Address, Subnet Mask, Gateway IP Address, and DNS IP Address information to
00.00.00.00.
f. Tap Apply Changes. It will take several moments for the changes to take effect.
g. Tap outside the menu to close the menu.
Note: You can also clear the instrument Address settings by accessing the instrument’s web-based interface. Connect the
instrument to your network, enter the instrument’s IP address into a Web browser on a PC that is connected to the same
network as the instrument, click the Network Configuration link on the left side of the screen, select the Manual TCP/IP
Mode box, clear all information from all fields, and click the Submit button for the Address Settings.
5. Open the Utility > Security menu and clear the password used to access enabling/disabling ports and software updates. See the Help
system for information on the Security menu functions.
6. Tap TekSecure Erase Memory to clear/reset internal memory.
7. Push the Default Setup button before powering off the instrument.
Clear and sanitize procedures
MSO44, MSO46, MSO44B, and MSO46B 4 Series Mixed Signal Oscilloscopes Declassification and Security Instructions 11
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