Brunton Eclipse 8097 - Page 2

1 -- Orientation: Brunton Eclipse 8097
The Eclipse 8097 compass is a sighting instrument which uses the Earth’s magnetic field to display
a bearing (direction) in degrees, with respect to true or magnetic north.
The orientation section provides a description of the important Eclipse 8097 parts. A detailed
description of 8097 operation is provided throughout the instruction manual.
1.1 Vial (Fig 1)
The vial contains a needle disk with a red circled "N" (described in 1.2) and a blue orienting
circle (described in 1.3). The fluid inside the vial stabilizes the needle disk.
1.2 Needle Disk +
RED circled "N" (Fig 1)
The needle disk contains a permanently magnetized ferrous material which orients the red
circled "N" to magnetic north
. Also printed on the needle disk are "E", "S" and "W", for quick
directional reference.
1.3 Orienting Circle –
BLUE (Fig 1)
Use the adjustable blue orienting circle for bearing measurement and magnetic declination
adjustment. Additionally, the blue line allows for accurate map alignment.
1.4 Graduated Dial (Fig 1)
The graduated dial is graduated 0° through 360°, incremented by 1°.
1.5 Rotating Azimuth Ring (Fig 1)
The rotating azimuth ring includes the graduated dial (described in 1.4). The blue orienting
circle and graduated dial rotate with the azimuth ring.
1
1.2
1.1
1.3
1.11
1.4
1.6
1.7
1.8
1.10
1.9
1.5
Figure 1