CGâ3/3M AUTOGRAV - Scintrex

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Section 3: INSTRUMENT PARAMETERSMain Menu (Auxiliary Mode) . . . . . . . . . . . . . . . . . . 3–1Auxiliary Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2INITIALISE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3INITIALISE Submenus. . . . . . . . . . . . . . . . . . . . . . . . 3–3LINE SEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–14STN SEP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–15AUTOGRAV SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . 3–16AUTOGRAV SETUP Submenus. . . . . . . . . . . . . . . . . . 3–16OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–30OUTPUT Submenus . . . . . . . . . . . . . . . . . . . . . . . . . 3–31EDIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–39LOCK AUX.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–40Locking the Auxiliary mode . . . . . . . . . . . . . . . . . . . . 3–40Unlocking Auxiliary mode . . . . . . . . . . . . . . . . . . . . . 3–40Section 4: FIELD OPERATIONParameter Setup and Keypad Operation. . . . . . . . 4–1Reading Time — Terminating a Reading . . . . . . . . . . . 4–2Cal. After . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2Levelling Requirements andContinuous Tilt Correction . . . . . . . . . . . . . . . . . . . . 4–3Recording Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4Auto Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4Notebook Feature . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5Transporting and Handling . . . . . . . . . . . . . . . . . . . 4–6Operation Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7Motion Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8Wind . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–9Base Station Selection . . . . . . . . . . . . . . . . . . . . . . 4–9Cold Weather Operation. . . . . . . . . . . . . . . . . . . . . . 4–10Using the CG-3 before Warm-upStabilization is Complete . . . . . . . . . . . . . . . . . . . . . 4–10Dumping Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–11ii Autograv CG–3/3M Manual
Section 5: BATTERY AND CHARGERLoss of Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–1Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–2Temperature Effects . . . . . . . . . . . . . . . . . . . . . . . .5–2Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–3Life Expectancy . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–4Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–5Charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–5Charging Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5–6Charger Line Voltage . . . . . . . . . . . . . . . . . . . . . . . .5–6Selecting an alternate voltage . . . . . . . . . . . . . .5–6Battery Compartment Fuse . . . . . . . . . . . . . . . . . . .5–8How to Change a Battery. . . . . . . . . . . . . . . . . . . . .5–8Section 6: MAINTENANCETemperature Compensation . . . . . . . . . . . . . . . . . .6–1Drift Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–2Obtaining Accurate Drift Correction Results . . . . . . .6–2Using a Chart Recorder. . . . . . . . . . . . . . . . . . .6–3Tilt Correction Adjustment. . . . . . . . . . . . . . . . . . . .6–4Tilt Sensor Zero Adjustments . . . . . . . . . . . . . . . . . .6–4Measuring X E . . . . . . . . . . . . . . . . . . . . . . . . . .6–4Fine Adjustment of X E . . . . . . . . . . . . . . . . . . . .6–6Measuring Y E . . . . . . . . . . . . . . . . . . . . . . . . . .6–8Fine Adjustment of Y E . . . . . . . . . . . . . . . . . . . .6–9Tilt Sensor Coarse Zero Adjustment . . . . . . . . . . . . .6–10Coarse Adjustment of X E . . . . . . . . . . . . . . . . . .6–10Coarse Adjustment of Y E . . . . . . . . . . . . . . . . . .6–11Tilt Sensor Sensitivity Adjustment (TILTXS, TILTYS) . . . .6–12Measuring X-axis Sensitivity . . . . . . . . . . . . . . .6–12Adjusting X-axis Sensitivity . . . . . . . . . . . . . . . .6–13Measuring Y-axis Sensitivity . . . . . . . . . . . . . . .6–14Adjusting Y-axis Sensitivity . . . . . . . . . . . . . . . .6–15Tilt Sensor Cross-Coupling . . . . . . . . . . . . . . . . . . . .6–16Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–16Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–17Recalibrating the Gravimeter. . . . . . . . . . . . . . . . . .6–18Tripod Maintenance . . . . . . . . . . . . . . . . . . . . . . . . .6–20Storing the Autograv . . . . . . . . . . . . . . . . . . . . . . . .6–20Table of ContentsAutograv CG–3/3M Manual iii
Page 1 and 2: CG-3/3M AUTOGRAVAUTOMATED GRAVITY M
Page 3: Autograv CG-3Table of ContentsSecti
Page 7 and 8: Appendix C: INTERFACING WITH THE AU
Page 9 and 10: Autograv CG-3Section1INSTRUMENT OVE
Page 11 and 12: Autograv CG-3 Manual 1-3Introductio
Page 13 and 14: Autograv CG-3Section2GETTING STARTE
Page 15 and 16: Starting up the AutogravSTARTING UP
Page 17 and 18: Powering up the Autograv4. Remove t
Page 19 and 20: Using the KeypadUSING THE KEYPADFig
Page 21 and 22: Using the KeypadKey506AUXDescriptio
Page 23 and 24: The DisplayTHE DISPLAYPARAMETER SET
Page 25 and 26: The DisplayModifying ParametersThe
Page 27 and 28: The DisplayHow ToAutograv CG-3 Manu
Page 29 and 30: The DisplayFigure 6Autograv Softwar
Page 31 and 32: Initializing the Instrument Paramet
Page 41 and 42: The Display during ReadingsPress th
Page 43 and 44: Setting up the TripodTo set up1. Se
Page 45 and 46: Setting up the Tripod7. Adjust the
Page 47 and 48: Temperature CompensationTEMPERATURE
Page 49 and 50: Temperature CompensationHow ToAutog
Page 51 and 52: Temperature CompensationTo AdjustAd
Page 53 and 54: Adjusting Drift CorrectionsADJUSTIN
Page 55 and 56:
Adjusting Drift CorrectionsR2,T20.
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Adjusting Drift Corrections503. Pre
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Recalling DataRECALLING DATA▲▲
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Recalling Data▲If the DATA or INF
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Recalling DataRECALLING DATA IN THE
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Autograv CG-3Section3INSTRUMENT PAR
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INITIALISE MenuINITIALISE MENUeTher
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INITIALISE MenuThe 48K represents t
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INITIALISE MenuExample: If you sele
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INITIALISE Menuee3. Press the CHANG
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INITIALISE MenuNotes:If you select
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INITIALISE Menu13. TIME HH:MM:SSYou
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STN SEPSTN SEPThere are no submenus
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AUTOGRAV SETUP1. MODEYou can select
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AUTOGRAV SETUPe 6e9. Press the ENTE
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AUTOGRAV SETUP4. CAL. AFTERYou can
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AUTOGRAV SETUPTIDE CORRECTIONCHG? >
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AUTOGRAV SETUPe4. Key in the value.
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AUTOGRAV SETUPeee4. Press the CHANG
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AUTOGRAV SETUP11. INITIAL CONSTANTS
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OUTPUTNotes: ▲ To dump data which
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OUTPUTTRACE1: > NNNNSELECT/ENTERYou
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OUTPUTea. Select the multiplier or
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OUTPUTg) START PLOT13. Press the 0
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OUTPUT7. CR DELAYYou can set the ca
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LOCK AUX.LOCK AUX.The LOCK AUX mode
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Autograv CG-3Section4FIELD OPERATIO
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Parameter Setup and Keypad Operatio
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Recording DataThe auto-rejection fe
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Operation Hints▲▲▲Ensure that
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Operation Hintsis reduced by signal
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Dumping Data1. After the instrument
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Autograv CG-3Section5BATTERY AND CH
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Batterypower to the instrument. Onc
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ChargerREPLACINGYou should replace
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Charger3. Change the charger fuse t
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How to Change a Battery3. Insert th
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Autograv CG-3Section6MAINTENANCEThe
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Drift Correction▲▲tion feature
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Tilt Correction Adjustment2. Place
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Tilt Correction AdjustmentMaintenan
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Tilt Correction AdjustmentFine Adju
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Tilt Correction AdjustmentCoarse Ad
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Tilt Correction AdjustmentAdjusting
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Page 145 and 146:
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Recalibrating the GravimeterA linea
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Autograv CG-3Section7TROUBLESHOOTIN
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Autograv CG-3Section8REFERENCE INFO
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Standard AccessoriesSTANDARD ACCESS
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Instrument Parts ListINSTRUMENT PAR
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Warranty and RepairWARRANTY AND REP
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Autograv CG-3AppendixATHEORY OF OPE
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Introductionever, since there is no
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IntroductionCONTROL CONSOLE AND SOF
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Spring Service Life and Reading Ran
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Spring Service Life and Reading Ran
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Processing of the Gravity SignalCor
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Compensation and CorrectionsRU( t 2
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Compensation and CorrectionsIf the
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Compensation and CorrectionsGRAVITY
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Autograv CG-3AppendixBELASTIC HYSTE
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Figure B-1 Elastic Hysteresis Effec
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Autograv CG-3AppendixCINTERFACING W
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IGS OutputDCE to DTEFunction Pin Pi
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IGS OutputMaleNORMAL5 5 Clear to Se
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Autograv CG-3AppendixDINITIAL CONST
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Autograv CG-3IndexIndexAAccessories
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FNotebook feature 4-5Output 2-37Rec
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MKKey functions 2-6, 2-7Enter mode
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RData 2-37DATA BITS 3-37DUMP ALL DA
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WTEC A-15EffectsBatteries 5-2Termin
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CGâ3/3M AUTOGRAV - Scintrex