EN
TROUBLESHOOTING
Fault
No circular image is obtained during
viewing.
Display not focused
displayed when measuring
- - -
Display flashes or no measurement
possible
28
Cause
a) Viewer's pupil is not in ocular's
exit pupil.
b) Eyecup position is not correct for
us with/without glasses.
Diopter compensation not perfect
a) Measuring range is too long or
too short
b) Insufficient reflection from target
Battery discharged
Remedy
a) Correct the eye position.
b) Correct the adjustment: When
wearing glasses, fold down the
eyecup; for viewing without glasses
it should remain up (see p. 6).
Carry out diopter compensation
again
Note information on the
measuring range
Replace battery