> Secure Environment Workplace
> This section describes the types of memory in the Site Master, how to delete stored user files in internal memory, and recommended usage in a secure environment workplace.
> Site Master Memory Types
> The instrument contains non‑volatile disk‑on‑a‑chip memory, EEPROM, and volatile DRAM memory. The instrument does not have a hard disk drive or any other type of volatile storage memory.
> EEPROM
> This memory stores the model number, serial number, and calibration data for the instrument. Also stored here are the user‑set operating parameters such as frequency range. During the master reset process, all operating parameters that are stored in the EEPROM are set to standard factory default values.
> RAM Memory
> This is volatile memory used to store parameters needed for the normal operation of the instrument along with current measurements. This memory is reset whenever the instrument is power cycled. Standby mode does not reset this memory.
> External USB Flash Drive (not included with the instrument)
> This memory can be selected as the destination for saved files. The user can also copy the contents of the internal memory to the external flash memory for storage or data transfer. The external USB flash drive can be reformatted or sanitized using software on a PC.
> Refer to File Management for additional information on saving and copying files to the USB flash drive.

> Note | The screen images on your instrument or computer may vary from what is shown in this User Guide.