Instruction manual of distancemeter TEPEX 2S - May 2021 version
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I I - PRESENTATION OF THE EQUIPEMENT
The
TEPEX 2S
is designed to control the position of mine holes before charging the explosive
; it allows a direct measure of the bench thickness : distance separating the bore hole from the
frontal face.
The kit is made up (see
fig. 1
) of a transmitter probe introduced into the bore hole and a
reading box held, at distance, in front of the frontal face.
The reading box integrates a distancemeter to measurement traversing.
A laser telemeter comes in addition.
Fig. 1 -
Reading box held vertically, operator elbows to body
The reading box, associated with the emitting probe, is used to measure the total distance
-
t.d
(distance separating the probe from the reading box) ;
The laser telemeter measure the distance -
l.d
- separating the rock massif from the box.
The measurement -
d
- from the bench results in the difference between the two measures.
The
TEPEX 2S
is appropriate for
quarries and civil engineering.
The measurement range stretches from 2,5 m to 15 m.
This measurement is expressed in meters (m) and by centimeters (cm) up to 6 m, by 2 cm
from 6 to 8 m, by 5 cm from 8 to 10 m and by 10 cm over and above 10 m.
The centimeters display doesn’t represent the precision of the measurement, but makes the
search easier for the minimum thickness by indicating the direction of the variation.
The accuracy of the measurement stays inferior to
5% of the scale total.
NOTE:
TEPEX 2S
is not affected by a certification and a labeling under the legal metrology : it enter not into
categories of instruments regulated by decree n° 2001-387 of 3 May 2001 or in the category of material
measures or dimensional measuring instruments mentioned in annexes to directive 2004/22/EC of
31/03/2004 on measuring instruments.
The
TEPEX 2S
is made up of the following elements
:
a transport case,
a measuring box,
a probe,
a laser telemeter to measure the distance separating the rock massif from the operator,
a graduated rope.
a sound device to control the good working of the probe
t.d
l.d
d