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bent. The bearing is read towardsthe band scalewhenthe sighted
object and the both lubber linescoincide.(Seefigure.)
COMPENSATION
AND DEVIATION
Compensation is recommended, if the deviation is more than 5
degrees,whenthe compassis in its normal mountingposition.
If the error is less than 5 degrees, it is sufficient to produce a
deviation
table.
n
Compensatio
is madewiththe two compensation a djusterscrews
"E/W' and "N/S" in order to reducethe errorscaused by iron
objects
or
other
sources of
compensation adjuster screws are situated at the compass lower
front edge.
Vvhen compensating, the boat should be in an area that is not
affected by permanent- or electro-magnetic disturbance.
I. Aim the boat due North and turn the "N/S" screw until the
compass reading is 00.
2. Aim the boat due East and turn the "E/W' screw until the
compass reading is 900.
3. Am the boat due South. If the compassdoes not show 1800, t urn
the "N/S" screw until the error is halved. (E.g. if the error is 60-
turn the screw until the error is 30.)
4. Aim the boat due West.tf the compass does not show2700,turn
the screw until the error is halved.
5. Gothroughtheprocedure againandcheckthe adjusted values.
6. Checkthe compassevery20 degreesand producea deviation
table and deviation
curve.
As the magnetic conditions in a boat are liable to change, we
recommend checking of the compassonce a year and alwaysafter
installationof equipmentwhichmight affectthe compass.
N.B. DO NOT REGARD
THE COMPASS
NAVIGATIONAL
INSTRUMENT
6
magnetic
disturbance.
The
AS AN ACCURATE
UNTIL
THE
COMPENSA-
TION IS CARRIED OUT AND THE DEVIATION TABLE IS
PRODUCED.
WHENEVER IN DOUBT, PLEASE SEEK THE ADVICE OF A
COMPASS
ADJUSTER!
For illumination
of the 70 UNE - Press in the middleof the red rubber
plug, to switch on the illumination. Turn off the illumination by
pressing plug once again.
Fitting batteries into the 70 UNE.
I. Remove the red rubber plug from the handle.
2. Pull out the illumination
unit.
3. Fit the batteries according to the main drawing (+ down, - up).
4. Turn over the battery plate.
5. Press the illumination unit back through the guiding track in the
handle.
6. Replace the redrubberplug,first byhand,thenpushthe plug
against a flat hard surface.
Data: Battery: Approx. 20 hours. Type of battery: Silver Oxide SR 44
1.5V(SILVA art.no 35632).
NOTE! Long term storage - take out the batteries.
NOTE! The illumination can be hard to see in strong sunlight.
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