Safety Notes - QEO FL 80 Bedienungsanleitung

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SAFETY NOTES

ACCURACY CHECK
Set up instrument in the middle of two walls which are about 5 m apart. Mark visible laser cross on
one wall. Turn unit to opposite wall and mark laser cross.
Repeat measurements with distance of about 0,6 m to one wall and about 4,4 m to second wall.
Deviation between two measurements taken from the centre and two measurements taken at 0,6 m
and 4,4 m must not exceed 3 mm.
Testing accuracy of horizontal line (end to end)
Set up instrument about 5 m from a wall. Mark laser cross on wall. Turn instrument until the laser
cross has moved about 2,5 m to the left side and check if horizontal line is within ± 2 mm of laser
cross marked on wall. Repeat measurement by turning instrument to the right side
Testing accuracy of vertical line (end to end)
Set up instrument about 5 m from a wall. Fix a plumb line of 2,5 m length to the wall, using a plumb
bob. Bring laser line into coincidence with the plumb line. Deviation between laser line and plummet
cord from top to bottom must not exceed ± 1,5 mm.
SPECIFIC REASONS FOR ERRONEOUS MEASURING RESULTS
Measurements through glass or plastic windows; dirty laser emitting windows; after instrument has
been dropped or hit. Please check accuracy.
Large fluctuation of temperature: If instrument will be used in cold areas after it has been stored in
warm areas (or the other way round) please wait some minutes before carrying out measurements.
CARE AND CLEANING
Handle measuring instruments with care. Clean with soft cloth only after any use. If necessary damp
cloth with some water. If instrument is wet clean and dry it carefully. Pack it up only if it is perfectly
dry. Transport in original container / case only.
ELECTROMAGNETIC ACCEPTABILITY (EMC)
It cannot be completely excluded that this instrument will disturb other instruments (e.g. navigation
systems); will be disturbed by other instruments (e.g. intensive electromagnetic radiation nearby
industrial facilities or radio transmitters).
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