TECAN 4. The sunrise Touchscreen2006-03 Instructions for Use for sunrise Absorbance Reader No. 30008746 Rev. No. 1.4 4-7Write-Protect Function (Where Appropriate)When the write protect switch is set to “unlocked” (open padlock symbol), datacan be written to and read from the USB stick. When the write protect switch isset to “locked” (closed padlock symbol), data can be read from the USB stick, butno data can be written to the USB stick.CautionWrite protection may not be activated or deactivated when the USB stickis plugged in.To lock or unlock the write protection unplug the USB stick. After plugged in, waita minimum of 15 sec before continuing operation.4.4.5 USB Stick Data ManagementOne unique USB stick should be used per instrument in order to avoid mix up.Depending on the amount of data resulting from measurements, data backupfrom the USB stick to a PC is recommended once a week. Data should be storedadditionally on durable storage media (CD, DVD, floppy…).Available memory space on the USB stick should be verified every time beforeusage. Backed up data on different media and no more useful for furthermeasurements can be deleted from the USB stick if expected data amountexceeds free memory. Use the Delete function of the MagellanCE software fromthe “Archive files” menu.