Silva LaserMaster User manual

Congratulations on your purchase of a SILVA LaserMaster™!
LaserMaster™ is the perfect aid for creating or  nding
boundaries/lines in the terrain.
LaserMaster™ works equally well in the woods as in open
terrain and provides exact bearings thanks to the laser unit
indicating where in the terrain the selected bearing runs.
NOTE: LaserMaster™ contains a laser unit. Improper use can
lead to injury! Thoroughly read the safety guidelines at the
end of this manual.
LaserMaster™ consists of a precision-aiming compass
combined with a precision alignment laser unit that generates
a red dot in the line-of-sight path. Accompanying equipment
includes a course protractor for exact determination of the
boundary bearing on the property/inventory map as well as a
re ective vest that not only effectively re ects the laser dot
while the bearer walks off the boundaries but also makes use
possible in strong daylight/sunlight.
LaserMaster™ is primarily intended for use by two persons,
where the front person wears the re ective vest and is
guided by the person sighting with LaserMaster™ in the
direction of the boundary. This allows the front person to
concentrate on such tasks as  nding boundary stones while
walking in the precise direction. The rear person concentrates
on guiding the front person with the help of the laser dot on
the large re ective surface of the vest. The method is simple,
quick and highly effective!
Instrument usage
LaserMaster™ should be held horizontal when used. When using the sight for aiming, it is often simplest to use both eyes (one
eye looking through the sight, the other looking along the side of the instrument, see Fig. 1) to easily see the laser dot while
reading off the correct setting on the compass scale. Some people have a problem with diffraction that may make the laser dot
appear to move in relation to the guideline in the sight when using both eyes. If this is the case, use only one eye when aiming.
Position the instrument so that you can read the compass heading on the scale while viewing the laser dot above the instrument
body.
NOTE: The built-in compass of the LaserMaster™ is affected by magnetic objects. For the best possible accuracy, remember to
keep helmets, weapons, metallic eyeglass frames and the like away from the vicinity of the instrument when it is in use.
Fig. 1
Precision compass capsule
Optical aiming system
Index line for
direct reading
Laser unit for accurate bearing
demarcation in terrain
Non-magnetic
aluminium housing
Battery compartment for 3
SR44 batteries (included)
On/Off button
for laser unit

   

 
Do as follows if there is a boundary on the map that you
wish to walk out in the terrain (Fig. 2)
Preparations prior to  eldwork
1.
Place the course protractor on the map with the cross over
the starting point of the boundary.
NOTE: The lower tip of the course protractor must point
down (south) on the map.
2.
Keep the cross on the starting point and turn the course
protractor until the line on the protractor follows the
direction of the boundary on the map. Fig. 3
NOTE: The lower tip of the course protractor will no longer
point down (south). Make sure, however, that it does NOT
point up (north) on the map. It should point in a direction
on the map that is no more than due east or west.
3.
Move the course protractor on the map along the boundary
until the cross, which was previously over the starting point
of the boundary, reaches a meridian. NOTE: Be careful not
to confuse meridians with coordinate system lines, such as
“Rikets nät” (Swedish grid), on the map. Fig. 4
4.
Read off the boundary bearings from the scales found on
the lower edge of the graduated disc. The correct bearings
are where the meridian passes the scales. Fig. 5
NOTE: Select a scale based on in which direction the
boundary extends. If it goes in a southeast direction, use
the scale marked SO. If it goes in a northeast direction, use
the scale marked NO, etc.
5.
Note the desired boundary bearing.
6.
Magnetic declination which is normally speci ed on the
map, must be taken into consideration to ensure bearings
are accurately obtained (If no declination is speci ed, this
can be obtained from the local land survey authority or the
like).
The calculation can also be done on the Internet:
http://www.ngdc.noaa.gov/cgi-bin/seg/gmag/ dsnth1.pl
NOTE: You must enter your approximate position in
latitude/longitude on this website to obtain the local
magnetic declination.
7.
If declination is east (positive), the value should be
subtracted from the boundary bearing obtained with the
course protractor. If the declination is west (negative), the
value should be added to the boundary bearing obtained
with the protractor.
Example: Boundary bearing 147
°
with 3
°
east (positive)
declination gives an actual magnetic compass bearing of
144°.
8.
Correct all compass bearings the same way and note them
so that they can be used in the  eld when marking the
boundary in the terrain.
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Meridian
Read boundary bearing
Read boundary bearing
Read boundary bearing
Meridian
. Move course protractor

Fieldwork
1.
Find the starting point of the boundary (such as boundary
marker or the like)
2.
Hold LaserMaster™ horizontal and look through the sight
(see section “Instrument usage”) on the short side of the
instrument (the compass capsule is mounted on the same
side). Fig. 6
3.
Turn your body until the desired compass bearing (144° in
the above example) is indicated on the larger of the two
scales.
4.
Activate the laser unit by pressing the switch on the long
side of the instrument. Do not forget to deactivate the
laser unit after use.
5.
If you have an assistant, he/she should wear the re ective
vest delivered with LaserMaster™. Aim the instrument to
the correct bearing (144°) while guiding your assistant so
that he/she moves with the laser dot visible on the large
re ective plate on the back of the vest. The re ective vest
makes it possible to use LaserMaster™ in strong light.
Fig. 7 and 8
6.
Your assistant should now search for any boundary
markers, such as boundary stones, pipes or the like. As
soon as a marker is found, it is clearly marked out in the
terrain, e.g. with a cone, and the procedure is repeated
from that spot. Fig 9.
7.
When a marker is found, it is a good idea to aim back in
the direction from which you came to check the compass
direction along which the boundary runs. This is read
from the small scale in the instrument sight. If this value
differs from the measured value and if the map indicates
the boundary should be straight, it is probably the most
recently read compass bearing that is correct and should
be used when continuing the search for more boundary
markers.
Do as follows to move a boundary to a parallel location
in the terrain, for example to mark the widening of a
powerline access road.
1.
Stand at the edge of the existing boundary, e.g. on the
edge of the powerline access road.
2.
Use LaserMaster™ to aim in the direction of the boundary;
read and note the number of degrees indicated by the
sight. For example 245°.
3.
If you wish to move the boundary parallel to the left – turn
90° to the left by subtracting 90° from 245° and aim at 155°
(If the boundary is to be moved to the right, add 90° to
obtain 335°).
4.
Aiming at 155° measure the desired stretch of boundary
to be moved parallel and stop at the point that shall
now constitute the starting point of the new boundary
demarcation.
5.
Activate the laser unit and aim at boundary bearing 245°.
If you have an assistant, guide him/her in the correct
direction. Feel free to use the re ective vest. You assistant
then marks the boundary line with a marking band or the
like.
6.
Regularly check the distance out to the original boundary
line.
Fig. 7
Fig. 8
Fig. 6
Fig. 9

Storage/Maintenance
Store the instrument at room temperature. Never expose
the instrument to temperatures exceeding 50°C as this could
damage the compass capsule. If the instrument has been
exposed to extreme moisture, check that the moisture has
not penetrated the battery compartment.
If the instrument is to be stored for a long period of time,
remove the batteries to avoid the risk of battery leakage.
Avoid storing LaserMaster™ in the proximity of strong
magnetic  elds, such as speakers, permanent magnets and
the like.
Service/Repairs
LaserMaster™ is normally service and maintenance-free.
Contact your local Silva representative in the event of
malfunction.
Battery replacement
Open the battery cover on the left-hand side of the instrument
by turning it counterclockwise.
Remove the batteries and replace them with 3 fresh ones of
type SR44. Make sure that the positive pole of the battery
(+) points out (towards the battery cover). Close the cover by
turning it clockwise. If the batteries are  tted in the wrong
direction, the laser unit will not light but will also remain
undamaged.
Technical data
Instrument housing: Aluminium
Sighting system: lens sighting with 2x enlargement
Graduation: 360° actual course and contra-course
Compass accuracy: Better than +/- 0.25 degrees from actual
magnetic course.
Laser: Class 2 (no permit required). Wavelength 650 nm.
Voltage 4.5 Volt.
Output <1mW.
Batteries: 3 SR44 (included)
Weight: 300 g
Dimensions: 170 x 53 x 16 mm
Laser CE-approved: DC91107 in accordance with test standard
EN60950,
EN60825-1
IMPORTANT!
Information on the laser unit in LaserMaster™
•
Do not attempt to remove the laser unit at the front of the
instrument on your own!
•
The built-in laser unit contains a class 2 laser.
•
Never look into the laser beam – this could cause
permanent eye injury!
•
When demarcating boundaries, make sure that your
assistant wearing the re ective vest always walks with
his/her back towards LaserMaster™!
Warning! Any attempt to modify/manipulate the laser unit
or use of LaserMaster™ for purposes other than which it is
intended could lead to laser radiation injury!
Warranty
•
The product has a 2-year warranty for material and
manufacturing defects.
•
Improper handling, attempts at modi cation or the like
invalidate the warranty.
•
The warranty does not cover any damage caused by a third
party or other equipment.
•
In the event of malfunction, contact your nearest Silva
retailer.
Additional advice and tips
Visit our website www.silva.se and click Outdoor/Products/
Professional Instruments for additional advice and tips on the
use of your SILVA LaserMaster™.
Silva Sweden AB
Box 998
S-191 29 Sollentuna
Sweden
[e-mail]
www.silva.se
Accompanying accessories
Course protractor - Part no. 67030
Re ective vest - Part no. 70743
Instrument case- Part no. 70742
Extra accessories
Monopod (non-magnetic single leg stand) - Part no. 71575-10
Course protractor
Part no. 67030
Re ective vest
Part no. 70743