Users’ Manual
EDS-71V/P Single point borehole extensometer
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8
2.1.4.4 Packer anchor
Packer anchor with geotextile bladder inflated with grout is generally used in fractured rock or soil.
2.2 Accessories
2.2.1
Junction box
Cable can be extended from the sensor to the observation room. Alternatively a junction box is available
for termination of cable from sensor and transmitting the signal through a multi-core cable to the
observation room.
2.2.2
Cable
For range of cables available, refer to ‘Accessories’ in Consolidated Catalogue on
http://www.encardio.com.
Figure 2.7- Junction box
To grout pump
Grout tube
Hollow bolt
Washer
Rubber bush
Grout
Hose clamp
PVC tube
Extension rod
Tie rod
Soil
PCB
#
1
4-
050
04
Figure 2-6
