Get ready to start a measuring campaign
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4.3.2 Assemble sensor unit and sampling ring
.3.2 Assemble sensor unit and sampling ring
Wipe off the ring surface after having drilled the holes.
Wipe off the ring surface after having drilled the holes.
Watch your mark. The long shaft must be inserted into the deeper
hole.
If the soil sample swelled up during saturation the overlapping soil
must be cut off before attaching the sensor unit.
1. On the sensor unit push an
O-ring (1) over each of the
shafts (2) to the very bottom.
The rings will keep out dirt once
the Tensiometer shafts are
installed.
2. Now place the silicone disk
over the Tensiometers and
push it down.
Fig. 34
3. Turn the sensor unit and
carefully place it on the soil
sample by inserting the
Tensiometer shafts into the
drilled holes.
Fig. 35
4. Now turn the assembly and
remove saturation bowl and
cloth. Close the clips to fix
sampling ring and sensor unit.
(1)
(2)
