User`s manual

CALIBRATION OF THE SPIRIT LEVELS
Position the T220 on a table with flat surface which is in level within 0,02
mm/m in both directions. Mark two positions for the detector unit at a
distance of 1 metre minimum from each other.
Zero the levels with the micrometre screws.
Zero the value on the screen.
Read and note the displayed value.
Turn the T220 180° and turn the turret as shown below.
Zero the levels with the micrometer screws.
Zero the value on the screen.
Read and note the displayed value.
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