geo-FENNEL 310100, Руководство пользователя

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13
EN
D
OPERATION
SET UP THE INSTRUMENT
Position the instrument onto a suitable tripod and place it as upright as possible. Retract the handle.
Centre the circular level coarsly by means of the foot scews of the tribrach. For this, first turn two
footscrews counter-rotating and use the third to centre the bubble.
Centre the plate level by using the same two footscrews. Rotate the instrument by 90° and centre the
plate level once more using the third footscrew. Repeat this procedure until the plate level is perfectly
centred in all positions. Optimum precision can only be achieved when the instrument is perfectly level.
Aim at the target and focus the crosshairs to the target. Now the instruments is perfectly level,
the plumb point upwards, the plumb point to the ground as well as the optical axis are concentrical.
When the istrument is centered over a known point, turn the ON/OFF plumb point upwards and /
or ON/OFF plumb point to the ground clockwise until you hear a click. The integrated filter will protect
your eyes from the laser radiation. Turn the knobs anti-clockwise to power off the laser again. The visible
distance of the plumb point upwards is up to 120 m in daylight conditions and 250 m in dark conditions.
For all measurements exceeding these distances the instrument must be used optically.
Power on the plumb point to the ground and rotate the instrument 360° in 90° increments to check if
the plumb down beam is exactly centred. Power on the plumb point upwards and rotate the instrument
360° in 90° increments. Repeat these procedures to achieve the optimum measuring accuracy.
When the zenith laser is focussed to the target the dot has the minimum diametre. When the unit is
perfectly levelled the laser dot to zenith is exactly perpendicular.
The plumb beam down can be focussed.