Quick Start Guide 2-15 Memory Profile and Security Issues
MS20xxC UG PN: 10580-00305 Rev. L 2-31
USB Memory Device
A USB memory device is not required for operating the instrument. You can store
measurement and setup data directly on a USB memory device, or you may transfer the
contents of internal memory to the USB device.
RAM Memory
This is volatile memory that is used to store many parameters needed for the normal
operation of the MS20xxC along with current measurements. This memory is reset whenever
the instrument is restarted.
EEPROM
This memory holds information such as the model number, serial number, and calibration
data for the instrument. Also stored here are the operating parameters, such as frequency
range, that are set by the user. During the master reset process, all operating parameters
that are stored in the EEPROM are set to standard factory default values.
MS20xxC Master Reset Instructions
1. Turn on the instrument.
2. Press the Shift key, then the System (8) key.
3. Press the System Options key.
4. Press the Reset key.
5. Press the Master Reset key.
6. A dialog box is displayed on the instrument screen to warn that all settings will be
returned to factory default values, and that all user files will be deleted.
7. Press the Enter key to execute the master reset, or press the Esc key to abort.
8. After several seconds (which can grow to several minutes if a very large number of
measurements have been saved in the instrument), the instrument reboots.
Note
With Option 7 enabled, the user does not have access to the instrument’s internal
memory and can only save to or load from a USB device.
Caution
Use of Master Reset (System+On), will permanently erase all user saved setups
and measurement traces and will return the VNA Master to a full Factory Default
condition. Be sure to make backup copies of any important files before proceeding
with a Master Reset.
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