background image

Congratulations on your purchase of the finest pocket transit instrument in the world.
The Brunton GEO Transit is not just a compass.  It combines a surveyor’s compass, pris-
matic compass, two inclinometers, hand level and a plumb into a single instrument.  

Even though the GEO Transit is made rugged and durable to withstand the rigor associ-
ated with outdoor use, care must be taken to assure long-life of your instrument.  Avoid
impacts, dropping, extreme temperatures and store  the Brunton GEO Transit in its case.

Orientation provides a description of important
pocket transit parts.  A detailed description of its
operation is provided throughout the manual.

Opening The GEO Transit

Position the GEO Transit so that the flat cover
faces up with the small window positioned away
from you.  Unlatch the cover from the base.  
(Fig 1)

1.1  Round Level  (Fig 2)

For accurate azimuth measurement, dip direction and trend measurements, center the bubble
in the round level.

1.2  Needle  (Fig 2)

The needle is attached to a rare earth magnet which is induction damped, allowing the needle
to seek magnetic north and come to a complete rest in a minimum amount of time.  

1.3  Graduated Circle  (Fig 2)

In combination with the needle, the 1° graduated circle allows for azimuth readings that are
accurate to 1/2 degree.

1.4  Long Level  (Fig 2)

The long level is for inclination measurement.  For accurate inclination measurement, center
the bubble in the long level using the vernier adjustment (section 1.14).

1.5  Rare Earth Magnet  (Fig 2)

Brunton has incorporated a cast NdFeB, rare-earth magnet which seeks magnetic north very
quickly and allows for faster needle settling.

1.6  Zero Pin  (Fig 2)

The zero pin a pointer used for magnetic declination adjustment.  If no adjustment is 
necessary, the pin should point at 0° on the azimuth ring.

1.7  Needle Release Mechanism -- 2-Positions (Fig 2)

Unlocked:

When needle locking adjustment (section 1.15) is unlocked the needle swings 
freely, even when needle release mechanism is pressed.

Locked:

When needle locking adjustment is in the locked position the needle is locked in 
place until the needle release mechanism is pressed.  

(Suggested for Storage)  

1 -- Orientation

2

1

1.3

1.4

1.5

1.2

1.1

1.8

1.7

1.6

1.10

1.9

Figure 1

Figure 2

Flat Cover

Small Window

Содержание GeoTransit

Страница 1: ...tional Measurements 18 9 Prospecting 19 10 Reference Material 25 11 Specifications 26 12 Service 26 i Copyright BRUNTON 2001 Printed in U S A form 11 GEO rev 0109 Owner s Purchase Record Model _______...

Страница 2: ...h is induction damped allowing the needle to seek magnetic north and come to a complete rest in a minimum amount of time 1 3 Graduated Circle Fig 2 In combination with the needle the 1 graduated circl...

Страница 3: ...ng Why are EAST WEST switched The GEO Transit is a direct reading compass Read azimuth directly where the needle points on the graduated circle With the large sight toward the object read azimuth dire...

Страница 4: ...ca only Use the isogonic chart a current United States Geological Survey USGS Bureau of Land Management BLM another map or a computer program to determine magnetic declination at your position Declina...

Страница 5: ...st declination rotate graduated circle clockwise from the zero pin Fig 9A For West declination rotate graduated circle count er clockwise Fig 9B If magnetic declination is 0 no adjustment is necessary...

Страница 6: ...er the body 4 Press left forearm against your waist and steady with right hand 5 Look just over the large sight and at the object through window opening on mirror Fig 16 Adjust mirror and large sight...

Страница 7: ...bubble is centered in the long level 6 Read inclination at vernier s center line The Brunton GEO Transit is capable of measuring vertical angles with an accuracy better than 1 with readings to 10 min...

Страница 8: ...ly height calculation as shown in figure 24A or 24B Note Do not calculate tangent of an angle by adding tangents of two smaller angles Example Tan 60 Tan 30 Tan 30 Find Tan 60 from a table use a calcu...

Страница 9: ...on its side and along on the rock surface so the vernier scale is at the bottom Fig 27 3 Adjust vernier until bubble is centered in long level 4 Read dip angle at the vernier s center line bottom sca...

Страница 10: ...the GEO transit 1 On a USGS topographic map place a point at a starting position and an X at a destination 2 Draw a line connecting both marks 3 At the starting point draw a true north line Fig 31 Use...

Страница 11: ...d center of each side line NRS 517 030 4 Within 90 days of posting the location notice prepare two copies of a claim map scale of 500 feet to the inch showing the position of the claim monuments the r...

Страница 12: ...ck pile 4 feet in diameter and 4 feet high or a steel post 3 inches in diameter and 5 feet high The description must also include the sec tion township and range The map need not be perfect but in acc...

Страница 13: ...township and range It is marked so that it must be read while standing on the south side of the monu ment The south side of the monument is marked with the date of the monument Fig 36 9 3 Sample Claim...

Страница 14: ...inning at Corner 1 NE corner Thence 600 feet 290 to Corner 2 Thence 1 500 feet 200 to Corner 3 Thence 600 feet 110 to Corner 4 Thence 1 500 feet 10 to Corner 1 Inches 1 8 1 4 3 8 1 2 5 8 3 4 7 8 1 2 3...

Страница 15: ......

Страница 16: ..._________________ Serial _____________________________ Date Purchased ____________________ Store _______________________________ City _______________________________ State _________ Zip ______________...

Страница 17: ...urn Authorization Number RA and send the unit to the address below Include a brief description of the problem Loss is not covered by this warranty Any repair to the unit must be done by a Brunton auth...

Отзывы:

Похожие инструкции для GeoTransit