![Nonin 9570 User Manual Download Page 19](http://html1.mh-extra.com/html/nonin/9570/9570_user-manual_1700072019.webp)
16
ENGLISH
Problems
Possible Cause
Possible Solutions
Troubleshooting
Display Lockup
Display does not appear
to change (you should
see a change to the
pulse indicator if the
device is on the finger).
Reposition
finger or change
fingers.
Remove
and replace battery.
If the problem persists
contact
Nonin Technical Service.