Page 40 - Catalogue ANGLAIS 2016_Neat

Borehole extensometer model EIF-INOX

CHARACTERISTICS

Measuring range :
100 mm (linear zone)

Accuracy :
0.05 mm

Resolution :
0.01 mm

Power supply of the sensor:
-15 V continuous
0,04 A

Using temperature :
APPLICATIONS
APPLICATION 0 to +50°C
Borehole extensometer model EIF-INOX are used to measure all
relative movement in field or structure on a length longer than 1 Storage temperature :
metre. +20 à +60°C

It is principally used in the long term monitoring of building and Watertightness :
construction where the following of the movements of the field IP68
is necessary, or when a control on the ground in contact with
the construction is important. Max measuring points :
5 points
D
DESCRIPTIF ESCRIPTION
The EIF extensometer is composed of PVC telescopic pipe in Cable :
which a retrievable stainless steel tubing is sliding. Depending of the sensors

The pipes with the measurement rings are grouted to the Max. length of extensometer :
ground. The stainless steel tubing on which the sensors are 120 m
installed is anchored on the top or the bottom of the borehole
and located to permit to have at the same level the rings and Min. diameter of borehole :
the sensors. 62 mm
Each ring with its associated sensor is a duet generating an
oscillating signal by the passing of the electrical power in the Advantage :
coil. The frequency variation of the output signal, associated Retrievable system

with the exact position of a coil in its associated anchor, allows Options :
an individual calibration of each anchoring point. Top anchor
The no-contact system between the core and the coil allows to Bottom anchor
avoid the wear of the sensitive element, and increase the Released anchor

accuracy of the sensor and extend its life.
Accessories :
The frequency output signal allows a good signal transmission Grouting pipe
on the long length adapted to huge civil engineering projects. Venting pipe

This document in any case can be contractual. Géo-Instrumentation save the right to modify the products and leaf sheets without prior notice.

Géo-Instrumentation - S.A.S. au capital de 37000 € - RCS Créteil B502768427 – APE : 7490B - N°TVA : FR10502768427