GPT-3000 SERIES - FLT Geosystems

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APPENDIX1 Dual Axis CompensationInclination of the vertical axis with respect to true vertical will result in incorrectly measured horizontalangles. The extent of the error in horizontal angle measurement due to axis tilt depends on threefactors :●●●the amount of the tilt of axisthe elevation of the targetthe horizontal angle between the direction of till of the vertical axis and the target.These factors are related by the following formula :Hz err = V•sinα • tanhwhere v = tilt of axis in arcsecondsα = azimuth angle between vert. axis direction and targeth = elevation of targetHz err = error in horizontal angleExample: When the vertical axis is tilted by 30 arcseconds, the target is 10° above the horizon androtated 90 in azimuth from the direction of the vertical axis error.Hz err = 30" • sinα • tan10°Hz err = 30" • 1 • 0 .176326=5.29"From the above example it can be seen that horizontal angle errors will increase with steeper verticalsights (tangent will increase as vertical angle increases) and will be at a maximum when the target is atright angles (sin 90°=1) to the direction of the vertical axis error. Errors will be at a minimum when thesights are nearly horizontal (h=0, tan0=0) and in the same direction as the vertical axis error ( α =0,sin0=0). Please refer to the table below to see the relationship between axis tilt (v) and elevation (h) andthe error in horizontal angles which results from these factors.Vh0° 1° 5° 10° 30° 45°0" 0" 0" 0" 0" 0" 0"5" 0" 0.09" 0.44" 0.88" 2.89" 5"10" 0" 0.17" 0.87" 1.76" 5.77" 10"15 0" 0.26" 1.31" 2.64" 8.66" 15"30" 0" 0.52" 2.62" 5.29" 17.32" 30"1' 0" 1.05" 5.25" 10.58" 34.64" 1'APPENDIX-1
It is clear from the table that dual axis compensation has the most benefit when the elevationof the target is greater then 30° and the axis is tilted more than 10". The entries indicated inbold in the table show, in fact, that for many common surveying applications i.e. target elevation
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FOREWORDThank you for purchasing th
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Display for Safe UseIn order to enc
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Laser Safety● Distance Measuremen
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9.3.3 Deleting a File . . . . . . .
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1 NOMENCLATURE AND FUNCTIONS1.1 Nom
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1.2 Display●●●1 NOMENCLATURE
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1.4 Function Key (Soft Key)1 NOMENC
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1 NOMENCLATURE AND FUNCTIONS1.5 Sta
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1 NOMENCLATURE AND FUNCTIONS●Tilt
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2 PREPARATION FOR MEASUREMENT2.1 Po
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2.3 Power Switch Key ON1 Confirm th
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2.5 Vertical and Horizontal Angle T
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2.6 How to Enter Alphanumeric chara
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2 PREPARATION FOR MEASUREMENT2.8 La
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3.2 Switching Horizontal Angle Righ
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3.5 Repetition Angle Measurement3 A
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LOCK3.7 Compasses ( vertical angle)
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4.3 Distance Measurement (Continuou
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4 DISTANCE MEASUREMENT● Choose me
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4.7 Offset Measurement4 DISTANCE ME
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4 DISTANCE MEASUREMENTThe horizonta
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4 DISTANCE MEASUREMENTAfter measuri
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4 DISTANCE MEASUREMENT6 Measure the
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4 DISTANCE MEASUREMENT6 Collimate t
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5.2 Setting Height of the Instrumen
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6 SPECIAL MODE (Menu Mode)By pressi
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6 SPECIAL MODE (Menu Mode)Horizonta
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6 SPECIAL MODE (Menu Mode)6.1.2 Mis
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6 SPECIAL MODE (Menu Mode)The horiz
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2) Z Coordinate Calculation from Kn
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6 SPECIAL MODE (Menu Mode)6.1.4 Are
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6 SPECIAL MODE (Menu Mode)When 3 or
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6 SPECIAL MODE (Menu Mode)7 Collima
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6 SPECIAL MODE (Menu Mode)3 Press t
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6 SPECIAL MODE (Menu Mode)7 Press t
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6 SPECIAL MODE (Menu Mode)6.4.5 Sel
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6.5 Setting Contrast of DisplaySett
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7 DATA COLLECTION●Data collect me
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7 DATA COLLECTION7.1.2 Selecting a
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7 DATA COLLECTION●Example for set
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7 DATA COLLECTION*1) Refer to Secti
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7.3 Data Collect Offset Measurement
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7 DATA COLLECTION7.3.2 Distance Off
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7 DATA COLLECTION7.3.3 Plane Offset
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7 DATA COLLECTION7.3.4 Column Offse
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7.5 Point to Line MeasurementIn thi
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7 DATA COLLECTION7.6 Editing PCODE
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8 LAYOUTLAYOUT mode has two functio
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8.1 Preparation8 LAYOUT8.1.1 Settin
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8 LAYOUT8.1.3 Setting Occupied Poin
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8 LAYOUT8.1.4 Setting Backsight Poi
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8.2 Executing a LayoutThe following
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8 LAYOUT8.2.1 Layout of Coordinates
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8 LAYOUT6 Press the [F4](ENTER) key
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8 LAYOUT5 Enter instrument height i
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● Viewing PT# LIST8 LAYOUTYou can
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9.1 Display Internal Memory StatusT
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● To edit the data in searching m
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9 MEMORY MANAGER MODE9.2.3 PCODE LI
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9 MEMORY MANAGER MODE9.3.1 Rename a
Page 124 and 125: 9.4 Coordinate Data Direct Key Inpu
Page 126 and 127: 9.5 Delete a Coordinate Data from a
Page 128 and 129: 9.7 Data Communications9 MEMORY MAN
Page 130 and 131: 9 MEMORY MANAGER MODE9.7.3 Setting
Page 132 and 133: 10 SET AUDIO MODE10 SET AUDIO MODET
Page 134 and 135: 12 SETTING ATMOSPHERIC CORRECTION12
Page 136 and 137: 12 SETTING ATMOSPHERIC CORRECTIONAt
Page 138 and 139: 12-512 SETTING ATMOSPHERIC CORRECTI
Page 140 and 141: 14 POWER SOURCE AND CHARGING14.1 On
Page 142 and 143: 15 DETACH/ATTACH OF TRIBRACH15 DETA
Page 144 and 145: 16 SELECTING MODE3:OTHERSSETEDM OFF
Page 146 and 147: 16 SELECTING MODE7 Press [F3](OTHER
Page 148 and 149: 17.2 Checking the Optical Axis17 CH
Page 150 and 151: 17 CHECK AND ADJUSTMENT[Example]Low
Page 152 and 153: 17 CHECK AND ADJUSTMENTAbout30°Abo
Page 154 and 155: 17 CHECK AND ADJUSTMENT17.3.1Checki
Page 156 and 157: 17 CHECK AND ADJUSTMENT17.3.4Collim
Page 158 and 159: 17 CHECK AND ADJUSTMENT17.3.6Checki
Page 160 and 161: 17.4 How to Set the Instrument Cons
Page 162 and 163: 17 CHECK AND ADJUSTMENT14 Press the
Page 164 and 165: 19 SPECIAL ACCESSORIES19 SPECIAL AC
Page 166 and 167: 19 SPECIAL ACCESSORIESAluminum exte
Page 168 and 169: 21 PRISM SYSTEM21 PRISM SYSTEMArran
Page 170 and 171: CIRCULARERRORPT# EXISTPT# DOESNOT E
Page 172 and 173: 23 SPECIFICATIONSAtmospheric Correc
Page 176 and 177: 2 Precaution when Charging or Stori
Page 178: EMC NOTICEIn industrial locations o
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GPT-3000 SERIES - FLT Geosystems

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