------------------------------------------------------------------------- LM-7800 User Guide
53
11. Troubleshooting
11.1.
Various Messages
Message box shows information when you are measuring or this instrument is out of
order.
Here is the description on messages that appear in measuring.
ALIGNMENT OK : When the optic center falls within 0.5 prism.
MARKING OK
: When the optic center is correct.
OFF CENTER
: When the optical center of lens is off too much.
Following messages are on out-of-working problem.
NO SIGNAL : Is displayed when there is no signal.
OUT OF RANGE : Is displayed when there is out of range signal.
UNSTABLE SIGNAL : Contact lens measurement, when signal is bad, appear.
11.2.
How to clean pin hole
While your machine is being started up, if there is the warning message, “No Signal”
or “Out of range”, please clean the 4-pin hole at first. Just use your lens towel. But,
don’t use liquids such as alcohol, acetone, etc.
Never use liquids such as alcohol, acetone, etc. Because such liquids
might melt the glue on the 4-pin hole.
After that, if the message “No Signal” or “Out of range” isn’t be disappeared, please
ask to your local distributor or the
LUXVISION
service department.
!
CAUTION
