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12-3

12 SETTING ATMOSPHERIC CORRECTION

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

Default Chapter4
- General Handling Precautions4
- Display for Safe Use5
- Safety Cautions5
- User6
- Exceptions from Responsibility6
- Laser Safety7
- Labels7
- Table of Contents8
- Standard Set Composition11
1 Nomenclature and Functions12
- Nomenclature12
- Display14
- Operating Key15
- Function Key (Soft Key)16
- Coordinate Measurement Mode17
- Star Key Mode18
- Serial Signal RS-232C Connector21
- Bluetooth™ Communication21
- Laser Plummet ON/OFF (Only for Laser Plummet Type)22
2 Preparation for Measurement23
- Power Connection23
- Setting Instrument up for Measurement24
- Power Switch Key on25
- Battery Power Remaining Display26
- Vertical and Horizontal Angle Tilt Correction27
- How to Enter Alphanumeric Characters29
3 Angle Measurement31
- Measuring Horizontal Angle Right and Vertical Angle31
- Switching Horizontal Angle Right/Left32
- Measuring from the Required Horizontal Angle32
  - Setting by Holding the Angle32
  - Setting a Horizontal Angle from the Keys33
- Vertical Angle Percent Grade(%) Mode33
- Repetition Angle Measurement34
- Buzzer Sounding for Horizontal Angle 90° Increments35
- Compasses ( Vertical Angle)36
4 Distance Measurement37
- Setting of the Atmospheric Correction37
- Setting of the Correction for Prism Constant / Non-Prism Constant37
- Distance Measurement (Continuous Measurement)37
- Distance Measurement (N-Time Measurement/Single Measurement)39
- Fine Mode/Tracking Mode/Coarse Mode40
- Stake out (S.O)41
- Offset Measurement42
5 Coordinate Measurement51
- Setting Coordinate Values of Occupied Point51
- Setting Height of the Instrument52
- Setting Height of Target (Prism Height)52
- Execution of Coordinate Measuring53
6 SPECIAL MODE (Menu Mode)54
- Application Measurement (PROGRAMS)55
- Setting the GRID FACTOR69
- Setting Illumination of Display and Cross Hairs70
- Setting Mode 171
- Setting Contrast of Display77
7 Data Collection78
- Preparation80
- Operational Procedure of DATA COLLECT84
- Data Collect Offset Measurement Mode87
- NEZ Auto Calculation94
- Point to Line Measurement95
  - To Change to the Point to Line Measurement95
  - Executing a Point to Line Measurement96
- Editing PCODE Library [PCODE INPUT]97
- Setting Parameter of Data Collect [CONFIG.]98
8 Layout99
- Preparation101
- Executing a Layout107
  - Layout of Coordinates of Point to Line109
- Setting a New Point110
  - Side Shot Method110
  - Resection Method112
9 Memory Manager Mode116
- Display Internal Memory Status117
- Searching Data118
- File Maintenance122
- Coordinate Data Direct Key Input125
  - Coordinate Data Input125
  - PTL (Point to Line) Data Input126
- Delete a Coordinate Data from a File127
- Editing PCODE Library128
- Data Communications129
- Initialization134
10 Set Audio Mode135
11 Setting the Prism / Non-Prism Constant Value136
12 Setting Atmospheric Correction137
- Calculation of Atmospheric Correction137
- Setting of Atmospheric Correction Value137
13 Correction for Refraction and Earth Curvature142
- Distance Calculation Formula142
14 Power Source and Charging143
- On-Board Battery BT-52QA143
15 Detach/Attach of Tribrach145
16 Selecting Mode146
- Items of the Selecting Mode146
- How to Set Selecting Mode148
17 Check and Adjustment150
- Checking and Adjusting of Instrument Constant150
- Checking the Optical Axis151
  - Checking the Optical Axis of EDM and Theodolite151
  - Checking the Optical Axis of Laser Pointer154
- Checking/Adjusting the Theodolite Functions156
- How to Set the Instrument Constant Value163
- Adjustment of Compensation Systematic Error of Instrument164
- EDM Alignment Checking Mode165
18 Precautions166
19 Special Accessories167
20 Battery System170
21 Prism System171
22 Error Displays172
23 Specifications174
Appendix177
- Dual Axis Compensation177
- Precaution When Charging or Storing Batteries179

Brand	Topcon
Model	GPT-3000W Series
Category	Measuring Instruments
Language	English

Topcon GPT-3000W Series User Manual

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Topcon GPT-3000W Series Specifications

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