SmartROC D65 T4F 9 Angle instruments
134 No: 713944459.6 en
Resetting the hole length counter
3.
Desired hole length when using automatic drill stop: Select the field by stepping
through with the arrow keys until the field is highlighted blue. Press enter to open the
active field, move the cursor in the field to the relevant decimal. Set the desired drill
length with the arrow keys and press enter to confirm. Once the counter has been
zeroed and the drilling has started, it will stop automatically when the set value has
been reached.
Desired hole length
Current drilled length: Shows the drilled length of the hole in progress after the
counter has been reset in accordance with (4).
4.
Current hole depth/Penetration rate: The upper value represents the attained drill
length in the current hole since the counter was zeroed and the lower value repres-
ents the penetration rate during current drilling. During rod adding, the average penet-
ration rate of the latest rod is shown. After resetting the counter, the average penetra-
tion rate for the previous hole is shown.
Current hole length/Penetration rate.
9.1.8 Laser plane instrument (option)
Additional to the drill length instrument, there is also the possibility of using a laser plane as
a reference level instead of the local ground level with the help of a laser beacon and a re-
ceiver on the rig. This requires the distance between the drill bit and the laser receiver be-
ing specified when the instrument is installed (see section "Calibration"). Once the laser re-
ceiver on the rock drill cradle has passed the laser plane, the displayed drill length will be
relative to the laser plane instead of ground level. The displayed drill length will then "jump"
to the pre-programmed value and then continue measuring from there. The laser beacon
must be placed in such a way that there is a free line of sight between the beacon and the
receiver on the rig.
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