Brunton ECLIPSE 8099 Manual De Instrucciones página 2

1 – Orientation: Brunton Eclipse  8099
The Eclipse 8099 compass is a sighting instrument which uses the Earth's magnetic field to display
a bearing (direction) in degrees. The Eclipse 8099 also contains three clinometer scales to meas-
ure angles from horizontal (0°) to overhead (90°).
The orientation section provides a description of important compass parts. A detailed description of
Eclipse 8099 operation is provided throughout the instruction manual.
1.1 Sight Cover (Figure 1)
The sight cover opens to three pre-measured angles – 45°, 90° and 120°. Use 45° for forward
mirror sighting and 120° for reverse mirror sighting.
1.2 Vial (Figure 1)
The vial is a clear, fluid-filled extrusion containing a needle disk with a
in 1.3), a blue orienting circle (described in 1.9) and a
1.10). The fluid inside the vial stabilizes the needle disk and clinometer arrow.
1.3 Needle Disk – RED circled "N" (Figure 1)
The needle disk contains a permanently magnetized ferrous material which orients the
circled "N" to magnetic north. Also printed on the needle disk are "E", "S" and "W", for quick
directional reference.
red circled "N" (described
green clinometer arrow (described in
1
red