Sperry Marine 5016-CA, Operation, Installaion And Service Manual

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056376/A Analogue Compass Repeaters
2-6 Taking Bearings with the Azimuth Device PV 23
2.9 Taking Bearings with the Azimuth Device PV 23
1. Mount the azimuth device PV 23 onto the bearing repeater:
a) Holding the PV 23 slightly tilted to the far side, hook the far side
catch under the rim of the repeater’s verge ring.
b) Let the centering pin at the underside of the PV 23 engage into
the recess of the repeater faceplate.
c) Push down on the near side of the PV 23.
The flexible near side catch snaps into place and the PV 23 is free
to rotate around the centering pin.
2. Take bearings:
a) Peep through the near sight while rotating the PV 23 towards the
object to observe.
b) If necessary, engage one or both of the coloured shades to
reduce glare while observing the object.
c) Continue to rotate the PV 23 until both sights are aligned with the
observed object.
If the object’s elevation is too high for direct observation, pick up
the object’s reflection in the black azimuth mirror and align the
sights with the reflection.
WARNING
Risk of injury
Permanent eye damage may result, when looking directly at the sun or
at its reflection in the black azimuth mirror when using the azimuth
device PV 23.
The PV 23 is not suited for taking the azimuth of the sun itself, as the
coloured shades do not sufficiently block out direct sunlight.
Never look directly at the sun or at its reflection in the black azimuth mir-
ror when using the azimuth device PV 23.
Always engage one or both of the coloured anti-glare filters if necessary
to reduce glare while observing an object
CAUTION
Risk of damage
The prismatic azimuth device PV 23 is not designed to constantly stay on
the bearing repeater compass.
Leaving the azimuth device PV 23 on the bearing repeater after usage,
will cause wear and damage to the equipment.
Always remove the azimuth device PV 23 from the bearing repeater and
store it carefully in its storage box.