Overview
The emWave2 handheld device has a limited internal memory that can store approximately 18 hours of session data. Once the memory is full, the device will stop recording new sessions until the existing data is deleted or moved to your computer. There are two primary ways to manage and delete this data.
Method 1: Automatic Deletion During Sync (Recommended)
This is the standard way to clear your device while ensuring your progress is saved in your permanent database.
-
Connect the Device: Use the USB cable to connect your emWave2 to your computer. Ensure the software recognizes the device (indicated by blue flashing lights on the heart action strip).
-
Open Sync Menu: In the emWave software, navigate to the File menu and select Sync emWave2…
-
Enable Deletion: In the dialog box that appears, check the box labeled “Delete handheld session data after import.”
-
Complete the Transfer: Click OK. The software will download all new sessions to your computer’s “Review Progress” section and then automatically erase them from the handheld unit.
Method 2: The “Wipe” Feature (Advanced)
The Wipe command is used to completely reset the device’s internal storage. This is typically used when you are giving the device to a new user or if you need to troubleshoot a device that is not syncing correctly.
-
Location: Click File > Sync emWave2… and then click the Advanced button.
-
Action: Select Wipe.
-
CAUTION: Wiping the device deletes all stored sessions immediately and disassociates the handheld unit from the current user profile. Data deleted via the Wipe command cannot be recovered. Always sync your sessions first if you wish to keep a record of them.
Why Clear the Device?
-
Memory Management: If the device reaches its 18-hour limit, it will no longer record new sessions.
-
Performance: Regularly clearing the device after syncing ensures the “Sync” process remains fast (usually 30 seconds to a minute). If a device is overloaded with hundreds of short sessions, the sync process can take significantly longer.
-
Privacy: If multiple people share a device, wiping the unit ensures the next user starts with a clean slate and no previous session data is mixed into their profile.