Users’ Manual
EAN-26 Digital inclinometer operation
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3 PREPARING TO LOG A BOREHOLE
Site and borehole names must be created in readout unit before logging a borehole. Edit borehole
parameters be providing required information. Then the inclinometer probe is lowered in the borehole down
to the deepest level to be logged and gradually pulled up in 0.5 or 1.0 m (2 or 4 feet) intervals and readings
stored. The interval by which the probe is raised after each reading is known as the depth interval. For the
first run the face A+ of the inclinometer is kept pointing towards the reference groove of the inclinometer
casing in the borehole. The reference groove is one of the four grooves in an inclinometer casing that has
been chosen to be the reference groove. After the first run is over the inclinometer probe is taken out of
the casing and rotated 180 degrees and reinserted in the inclinometer casing. Conventionally this traverse
is known as A- face. For a biaxial probe the second axis is labeled as B+ during the first traverse and B-
during the second traverse.
Borehole files (logs) uses face conventions as face A+ is referred as face A, face A- is referred as face B,
face B+ is referred as face C and face B- is referred as face D.
For Encardio rite vertical inclinometer probes the side with the topmost wheel is labeled as face A+. When
the inclinometer probe tilts towards the topmost wheel, i.e. towards face A+, the output of A axis increases
in the positive direction. If the tilt is in reverse direction the sign of the output voltage is negative.
