Topcon GTS-3B User manual

INSTRUCTION MANUAL .
Geodetic GTS.3B
Total
Station GTS.3C
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================ FOREWORD ~=============
Thank you very much for purchasing a product of TOPCON. This instruction manual is for the
TOPCON Geodetic Total Station GTS-38 (GTS-3C). Please read this manual carefully to make
the best use of your
instrument and keep the manual in a safe place for future reference.
Specializing in quality
used surveying and
optical equipment
Hodgens Equipment Sales
www.hodgens.net [email protected]et
800-463-4367

================= MAIN FEATURES ~=============
-GT8-38 (GT8-3C) is a tachometer which is provided with electronic angle reading and dis-
tance measuring functions. GT8-38 covers 5 second reading electronic angle measurement
tance measurement up to 2.5 km.
GT8-3C is provided with electronic angle reading by 10 sec-
onds and distance measurement up
to 1.8 km. The data obtained .can be stored electronically
through TOPCON's FC-1 Data Collector. The GT8-38 (GT8-3C) has been developed as an elec-
tronic total station suitable for use in field surveying as well as a key component in acomputerized
surveying system.
-The unit of angle measurement is changed by operating option switches; 1 second reading is
available with GT8-38'with 5 second divisions. 10 second reading is available with GT8-3C with
5 second divisions.
-Horizontal angles, vertical angles, slope distances, horizontal distance,' relat-ive'elevation,
coordinates of an unknown point and elevation are all available by using the GT8-3'8 (GT8-3C).
The measurements and displayed through a liquid crystal display and can be transmitted and
stored
in TOPCON's FC-1 Data Collector.
-Angle measurement is obtained by the incremental method. The
"0" position of the vertical
angle
is easily obtained.
-A built-in high-precision tilt sensor (liquid compensator) is used for the vertical axis correction.
The "0" position of the vertical angle is easily set and a relative elevation measurement is
possible with high accuracy.
-The excellent features of the GT8-38 (GT8-3C) will produce high accuracy and excellent
efficiency when used properly during a survey.
-Various points in a detailed survey are immediately available by measuring ,the angle and
distance from
an occupied station. The data can be applied effectively, for instance, by
transforming it to a
graphic expression by use of a computer system or directly used for
computation
in design.
-The data can be used effectively for peg checking, reference, re-construction and distance
measurement
in engineering surveys.
-Through TOPCON's technology, we have succeeded in building a compact, light-weight total
station (5.2 kg), with our end users being the benefactors.
-It is possible to connect the GT8-38 (GT8-3C) with a computer by using serial signal R8-232C
connector.
Specializing in quality
used surveying and
optical equipment
Hodgens Equipment Sales
www.hodgens.net [email protected]et
800-463-4367

================ CONTENTS~=============
1. STANDARD SET COMPOSITION .................................... .
1-1 Standard Set. .............................................. .
1-2 Optional Accessories
......................... ',' . . . . . . . . . . . . . . 2
2. NOMENCLATURE AND FUNCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2-1 Nomenclature ............................. '. . . . . . . . . . . . . . . . . . 3
2-2 Parts Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. PREPARATIONS FOR MEASUREMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3-1 Power Connection . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3-2 Leveling the
Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3-3 Power Switch ON.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 10
4. ANGLE MEASUREMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12
4-1 Measuring a Right Horizontal Angle and Vertical Angle. . . . . . . . . . . . . .. 12
4-2 Measuring a Left Horizontal Angle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13
4-3 Repeat Angle Measurement... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13
5. DISTANCE MEASUREMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15
5-1 Setting the Atmospheric Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15
5-2 Setting the Prism Constant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15
5-3 Measuring Distance (Continuous Measurement). . . . . . . . . . . . . . . . . . .. 15
5-4 Measuring Distance (Number of Distance Measurement) ............. 16
6. TRACKING AND COARSE MEASUREMENT .. . . . . . . . . . . . . . . . . . .. . . .. . . . . . .. 17
7. COORDINATES MEASUREMENT ..................................... 18
8. BASIC KEY OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20
9. COMBINED USE OF INSTRUMENT WITH THE FC-1 DATA COLLECTOR ...... 24
9-1 Connecting GTS-3B to the FC-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 24
9-2 Mode Available with FC-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 25
9-3 Data Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 26
9-4 Stake Out. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 27
9-5 Coordinates Measurement with FC-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 28
1 O. DESCRIPTION OF OPTION SWITCH OPERATION. . . . . . . . . . . . . . . . . . . . . . .. 30
10-1 Offset Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 30
10-2 Option Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 31
11. ATMOSPHERIC CORRECTION .............. : . . . . . . . . . . . . . . . . . . . . . . .. 33
11-1 Use of Atmospheric Correction Chart . . . . . . . . . . . . . . . . . . . . . . . . . . .. 33
11-2 Use of Atmospheric Correction Calculator. . . . . . . . . . . . . . . . . . . . . . . .. 34
11-3 Atmospheric Correction Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 35
11-4 How to Set the Atmospheric Correction Value. . . . . . . . . . . . . . . . . . . . .. 36
12. CORRECTION FOR REFRACTION AND EARTH CURVATURE .............. 37
12-1 Distance Calculation Formula; with correction for refraction and earth
curvature taken into account. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 37
13. BATIERY POWER WARNING ................................... '" .. 38
14. POWER SOURCE AND CHARGING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . .. 39
14-1 Handle Battery BT-150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 39
14-2 Charging the External Power Source BT-3, BT-30 and BT-3L. . . . . . . . . .. 40
15. ERROR DISPLAYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 41
16. DETACHABLE TRIBRACH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 42
17. SELECTING MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 43
Specializing in quality
used surveying and
optical equipment
Hodgens Equipment Sales
www.hodgens.net [email protected]
800-463-4367

18. PRECAUTIONS ................................. ·················· 47
19. ADJUSTMENTS
................................. ··.··············· 48
19-1 Adjustment of the Optical Axes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 48
19-2 Checking Accuracy of the Distance
Measurement. . . . . . . . . . . . . . . . .. 49
19-3 Pointers on Adjustments
.......................... '. . . . . . . . . . . .. 50
19-4 Adjustment of the Vertical Cross-hair. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 50
19-5 Adjustment of the Plate Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 51
19-6 Adjustment of the Circular Level .............................. " 52
19-7 Adjustment.of Vertical Angle 0
Datum. . . . . . . . . . . . . . . . . . . . . . . . . . .. 53
19-8 Collimation of the Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 54
19-9 Adjustment of the Optical PlummetTelescope
.. . . . . . . . . . . . . . . . . . .. 56
19-10 Other Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 57
20. SPECIAL ACCESSORIES ........................................... 58
21. BATTERY SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 64
21-1 In Case of Handle Battery BT-15Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 64
21-2 In Case of External Battery Pack
.............................. " 64
21-3 Charging
.............................................. ····· 65
22. PRISM AND REFLECTOR SYSTEM
................................... 66
23. SPECiFICATIONS
..................................... ·.·········· 67
Specializing in quality
used surveying and
optical equipment
Hodgens Equipment Sales
www.hodgens.net [email protected]et
800-463-4367