Topcon GPT-2003 User Manual download pdf (Page 126)

12 SETTING ATMOSPHERIC CORRECTION

12-3

Atmospheric Correction Chart (For your reference)

The atmospheric correction value is obtained easily with the atmospheric correction chart. Find the

measured temperature in horizontal, and pressure in vertical on the chart.

Read the value from the diagonal line, which represents the required atmospheric correction value.

Example:

The measured temperature is +26°C

The measured pressure is 1013 hPa

There fore,

The correction value is +10ppm

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GPT-2000 1
FOREWORD 3
AVO ID EXPOSURE 7
LASER LIGHT IS EMITTED 7
FROM THIS APERTURE 7
Contents 8
Standard Set Composition 11
1 NOMENCLATURE AND FUNCTIONS 12
1.2 Display 14
Keys Name of Key Function 15
Angle measurement 16
Distance measurement mode 16
Coordinate measurement mode 16
Mode Output 17
N, E, Z, HR (or V,H,SD,N,E,Z) 17
2 PREPARATION FOR MEASUREMENT 18
2.3 Power Switch Key ON 20
V : 90°10'20" 21
HR: 0°00'00" 21
0SET HOLD HSET P1 21
Turning the Point Guide OFF: 25
Symbol mark 26
3 ANGLE MEASUREMENT 27
Display angle 28
4 DISTANCE MEASUREMENT 33
4.4 Distance Measurement 35
4.6 Stake Out (S.O) 37
4.7 Offset Measurement 38
5 COORDINATE MEASUREMENT 47
Enter Inst.HT 48
Enter R. HT 48
Set direction 49
6 SPECIAL MODE (Menu Mode) 50
Collimate 55
6.2 Setting the GRID FACTOR 65
6.4 Setting Mode 1 67
7DATA COLLECTION 71
7.1 Preparation 73
● Distance offset measurement 80
● Column offset measurement 80
Collimate A 81
7.4 NEZ Auto Calculation 87
Menu Selecting Item Contents 89
8LAYOUT 90
8.1 Preparation 92
Grid Factor 92
Enter coord 95
8.2 Executing a Layout 98
8.3 Setting a New Point 100
9 MEMORY MANAGER MODE 106
9.2 Searching Data 108
9.3 FILE MAINTENANCE 112
Enter COORD 115
9.6 Editing PCODE Library 117
9.7 Data Communications 118
Item Selecting Item Contents 120
9.8 Initialization 121
10 SET AUDIO MODE 122
Enter Temp 124
CURVATURE 129
14 POWER SOURCE AND CHARGING 130
15 DETACH/ATTACH OF TRIBRACH 132
16 SELECTING MODE 133
US SURVEY / 133
INTERNATIONAL 133
DISTANCE MEAS 133
LANGUAGE * ENGLISH/ 134
17 CHECK AND ADJUSTMENT 137
Measuring point 145
POWER ON 147
, and 3) 149
18 PRECAUTIONS 150
19 SPECIAL ACCESSORIES 151
19 SPECIAL ACCESSORIES 153
20 BATTERY SYSTEM 154
21 PRISM SYSTEM 155
Single prism 155
Tilting triple 155
22 ERROR DISPLAYS 156
Error code 156
23 SPECIFICATIONS 158
APPENDIX 161
APPENDIX-2 162
APPENDIX-3 163
APPENDIX-4 164
APPENDIX-5 165
GPT-2000 series 168

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Topcon GPT-2003 User Manual Page 126

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