YSI 30 - Manual (Page 15)

Saving Data Section 4
YSI, Incorporated Model 30/30M 11
2. Press and hold both the DOWN ARROW and ENTER keys simultaneously for approximately
5 seconds.
3. Successful erasure is indicated by the Model 30M flashing DONE on the display for 1 to 2
seconds. The instrument will automatically change to normal operation after completion.
dOnE
IMPORTANT: Data in all 50 site ID’s will be erased completely and will be lost forever. Do
not use the erase function until all recorded data has been transcribed to an
archive outside the Model 30M.