General XL4 MKII, Instruction Manual

Page: 17 / 24

17
CARE AND MAINTENANCE
▪ This is a precision measuring instrument
and should always be handled with care and
transported within the carry case provided.
▪ Always turn the unit off before transporting
the instrument or moving around the job
site.
▪ Reflective surfaces such as glass may
reflect the laser beam, causing two beams
to strike the detector at the same time. This
may result in inaccurate reference points.
▪ Whenever possible, store the instrument
in a dry, shady location.
▪ Calibration of the instrument is
recommended: every six months, if ongoing
accurate levelling is required, or an impact
has occurred.
▪ The operator should check the accuracy
of the instrument before precision levelling
is attempted. Failure to do so may result
in inaccurate measurements.
▪ Clean the instrument with a dry, soft
cloth after use in dusty, damp or wet
conditions before storing.
▪ Smudges and fingerprints may be
removed with a damp tissue or a soft, lint-
free cloth.