CST/BERGER Theodolite DGT 10 Manual Original página 21

Function setting method
In this mode the following functions are assigned to the buttons:
Selection of the "Circle" element
Selection of the "Time" element (month, date,
year, hour, minute)
Selection of the "upwards" element or "Time"
plus 1
Selection of the "downwards" element or "Time"
minus 1
Confirming the setting, exiting the setting
mode, returning to angle mode
Worksteps
– Simultaneously press the SFT and
R/L buttons to go to the setting
mode.
– Press OSET to select the element.
– Press the R/L or V% button to
change the setting for the selected
element.
– Set all elements as desired.
– Press the SFT button to end adjust-
ment and return to the angle meas-
urement mode.
– Simultaneously press the SFT and
R/L buttons to go to the setting
mode.
– Press the HOLD button to select
the element (month, date, year,
hour, minute, second). The select-
ed element will flash.
– Press the R/L or V% button to se-
lect plus or minus.
– End the adjustment of all elements.
– Press the SFT button to return to
the angle measurement mode.
only for DGT 2
Adjustment method for the electronic compensator
Adjustment has to be performed if the error message appears
concerning the compensation accuracy of the instrument.
1 609 92A 0LD • 23.10.14
Display Indications
Carry out the following steps:
Switch on and perform your input whilst pressing the R/L + V%
buttons.
 Make sure that the vertical axis of the instrument is exactly
vertical (all rotations, vial always centred). Check the val-
ues in the second line. If they are less than ± 60, go to the
next step. If they are over ± 60, begin step 5.
 Align the horizontal line of the telescope crosshair with the
collimator tube and press the OSET button.
 Turn the theodolite base screw, align the telescope down-
wards to 3" (the value on the display is negative) and press
the OSET button.
 Turn the theodolite base screw, align the telescope up-
wards to 6" (the value on the display is positive) and press
the OSET button to complete the settings.
 If the value is over ± 60 in step 1, you have to open the plas-
tic cover on the side of the battery compartment, release
the vial, align it to a value of less than ± 20, and then con-
tinue with steps 2 to 4.

Press the SFT button to return to the angle measurement
mode.

Reset the instrument index error.
Setting Up the Measuring Tool
 Protect the measuring tool against moisture and direct
sun light.
 Do not subject the measuring tool to extreme tempera-
tures or variations in temperature. As an example, do not
leave it in vehicles for longer periods. In case of large varia-
tions in temperature, allow the measuring tool to adjust to
the ambient temperature before putting it into operation.
 Avoid heavy impact to or falling down of the measuring
tool. After severe exterior effects to the measuring tool, it is
recommended to carry out an accuracy check (see "Accura-
cy Check of the Measuring Tool", page 22) each time before
continuing to work.
Setting Up/Aligning the Measuring Tool
For optimal performance, the measuring tool should be fas-
tened on a tripod and accurately aligned.
– Set up the tripod stably above the measuring point.
– Mount the measuring tool onto the tripod.
– Adjust levelling screws 1 (A, B, C) so that the bubble of the
circular bubble vial 21 is centred. (see figures E1 – E2)
– For fine adjustment, turn the measuring tool until base plate
10 is in one of the positions shown. (see figure E3)
Adjust levelling screws 1 (A, B, C) so that the bubble of plate
vial 12 is centred (see figure E4).
– Align the measuring tool with the optical plummet 9.
For this, focus the crosshair with the eyepiece of the optical
plummet 27.
Focus a measuring point on the ground with the focussing
ring of the optical plummet 28.
Lightly unscrew fastening screw X of the tripod and move the
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