TM30 Field Adjustments
Contents
1. 11 46 r ji 9 Current g 0 CONT F1 To return to the TOOLS Check amp Adjust Menu screen Refer to 29 3 Accessing Check amp Adjust Menu MORE F5 To display information about the date of the determination the standard deviation of the errors and the temperature during the determi zat CONT MORE nation Next step CONT F1 returns to TOOLS Check amp Adjust Menu screen Refer to 29 3 Accessing Check amp Adjust Menu TPS1200 TS30 TM30 5652. is caused by the deviation between the mechanical tilting axis and the line perpendicular to the vertical axis This error affects Hz angles The affection is 0 in the horizon and increases with steep sights To determine this error itis necessary to point to a target located significantly below or above the horizontal plane To avoid influences from the Hz collimation error c this has to be determined prior to the tilting axis error Tools Check amp Adjust TPS1200 TS30 TM30 539 Vertical index error i a Mechanical vertical axis of the instrument also called standing axis b Axis perpendicular to the vertical axis c V 90 reading in a specific face TPS12_023 d Vertical index error A vertical index error i exists if the 0 mark of the vertical circle reading doesn t coincide with the mechanical vertical axis of the instrument also called standing axis The V index error i is a constant error that affects all vertical angle readings Tools Check amp Adjust TPS1200 TS30 TM30 540 Compensator index errors I t Mechanical vertical axis of the instrument also called standing axis Plumb line Longitudinal component I of the compensator index error I Transversal component t of the compensator TPS12_022 index error The compensator index errors I t occur if the vertical axis of the instrument and the plumb line are parallel but the zero points of the compensator and th
3. index error related to the standing axis c Hz collimation error also called line of sight error ATR Hz ATR zero point error for Hz angle option ATR V ATR zero point error for V angle option Tools Check amp Adjust TPS1200 TS30 TM30 549 Combined procedure The following table explains the most common settings Refer to the stated chapter for more step by step information on screens Step Description Refer to chapter CS Before determining the instrument errors the instrument has to be e levelled up using the electronic level e protected from direct sunlight e acclimatised to the ambient temperature approximately two minutes per C difference compared to the storage place e Refer to 29 1 Overview paragraph Precise measurements for more details 1 TOOLS Check amp Adjust Menu Select the option Combined I t i c ATR 2 TOOLS Combined lt ATR Adjust On gt Includes the determination of the ATR Hz and V adjustment values if an ATR is available CS gt It is recommended to use a clean Leica circular prism as target for example a GPR1 Do not use a 360 prism lt ATR Adjust Off gt ATR Hz and V adjustment value determination is not included A prism is not necessarily required to run the procedure Tools Check amp Adjust TPS1200 TS30 TM30 550 Tools Check amp Adjust Step Description Refer to chapter TPS12_024 Aim the telescope ac
4. 29 Tools Check amp Adjust 29 1 Overview Description Leica instruments are manufactured assembled and adjusted to the best possible quality Quick temperature changes shock or stress can cause deviations and influence the instru ment accuracy It is therefore recommended to check and adjust the instrument from time to time This can be done in the field by running through specific measurement procedures The procedures are guided and have to be followed carefully and precisely as described in the following chapters Some other instrument errors and mechanical parts can be adjusted mechanically Electronic adjustment The following instrument errors can be checked amp adjusted electronically I t Compensator longitudinal and transversal index errors i Vertical index error related to the standing axis c Hz collimation error also called line of sight error a Tilting axis error ATR ATR zero point error for Hz and V option Every angle measured in the daily work is corrected automatically if the compensator and the Hz corrections are activated in the instrument configuration Select Main Menu Config Instrument Settings Compensator to check the settings The results from check and adjust are displayed as errors but used with the opposite sign as corrections when applied to measurements Mechanical adjustment Refer to the Leica TPS1200 User Manual TS30 TM30 User Manual for details Tools Check amp Adjus
5. AS F5 if more runs have to be added Continue with step 2 OR CONT F1 to accept the measurements and to access TOOLS Adjustment Results No more runs can be added later E aa g 11 43 err I Use Yes Yes Yes Yes CONT F1 To accept and store the new determined instru ment errors where Yes is set in the Use column Writes to or appends to an existing logfile if the logfile recording has been Yes Yes enabled Refer to 29 4 Configure Check amp Adjust USE F4 To set Yes or No in the Use column for the highlighted set Q2a t CONT REDO USE Hore TPS1200 TS30 TM30 553 MORE F5 To view additional information about the current used old instrument errors REDO F2 To reject all results and to repeat the complete check and adjust procedure Refer to step 2 of paragraph Combined procedure step by step Description of columns and fields Column Option Description New g Shows the new determined and averaged instrument errors The unit is displayed in Use Yes Stores the new adjustment error No Keeps the currently used error active on the instru ment and rejects the new one Old g j Shows the old adjustment errors which are currently valid on the instrument The unit is displayed in Next step IF the results are THEN to be stored CONT F1 overwrites the old adjustment errors with the new o
6. ally on one side of the instrument housing It is also recommended to avoid strong heat shimmer and air turbulences The best conditions can be found usually early in the morning and with overcast sky Before starting to work the instrument has to become acclimatised to the ambient temper ature Approximately two minutes per C temperature difference from storage to working environment but at least 15 min should be taken into account TPS1200 TS30 TM30 537 29 2 General Hz collimation error c Tools Check amp Adjust Details on Instrument Errors Instrument errors occur if the standing axis the tilting axis and the line of sight are not precisely perpendicular to each other f TPS1 2_026 2 Tilting axis Line perpendicular to tilting axis Hz collimation error c also called line of sight error Line of sight ZM ey S ei d Da The Hz collimation error c is also called line of sight error It is caused by the deviation between the optical line of sight which means the direction in which the crosshairs points and the line perpendicular to the tilting axis This error affects all Hz readings and increases with steep sightings TPS1200 TS30 TM30 538 Tilting axis error a b a Axis perpendicular to the vertical axis b Mechanical vertical axis of the instrument also called standing axis c Tilting axis error TPS12_027 d Tilting axis The tilting axis error a
7. ata should be written A logfile is stored in the DATA directory of the active memory device The data is always appended to the file TPS1200 TS30 TM30 547 Tools Check amp Adjust Field Option Description Opening the choicelist accesses XX Logfiles where a name for a new logfile can be created and an existing logfile can be selected or deleted lt Format File gt Choicelist Available for lt Write Logfile Yes gt A format file defines which and how data is written to a logfile Format files are created using LGO A format file must first be trans ferred from the CompactFlash card to the System RAM before it can be selected Refer to 24 Tools Transfer Objects for information on how to transfer a format file Opening the choicelist accesses XX Format Files where an existing format file can be selected or deleted Next step PAGE F6 changes back to the Parameters page TPS1200 TS30 TM30 548 29 5 Combined Adjustment I t i c and ATR Access step by step Step Description 1 Refer to 29 3 Accessing Check amp Adjust Menu to access TOOLS Check amp Adjust Menu 2 In TOOLS Check amp Adjust Menu highlight Combined I t i c ATR 3 CONT F1 to access TOOLS Combined l Description The combined adjustment procedure determines the following instrument errors in one process I t Compensator longitudinal and transversal index errors i Vertical
8. curately at a target at a distance of about 100 m The target must be positioned within 9 10 gon of the hori zontal plane KE The procedure can be started in any telescope face The fine pointing has to be performed manually in both faces TPS1200 TS30 TM30 551 Tools Check amp Adjust Step Description Refer to chapter MEAS F1 to measure and to continue to the next screen _ Motorised instruments change automatically to the other face y TPS12_025 Non motorised TPS1200 instruments guide to the other face using the TOOLS Telescope Positioning screen TOOLS Combined II MEAS F1 to measure the same target in the other face and to calcu late the instrument errors If one or more errors are bigger than the predefined limits the proce dure has to be repeated All measurements of the current run are rejected and are not averaged with the results from previous runs TOOLS Adjustment Accuracy TPS1200 TS30 TM30 552 TOOLS Adjustment Results Tools Check amp Adjust Refer to Step Description chapter lt No of Meas gt Shows the number of runs executed One run consists of a measurement in face and face Il All other fields display the standard deviations of the determined adjustment errors The standard deviations can be calculated from the second run onwards It is recommended to measure at least two runs T ME
9. e circular level do not coincide The calibration procedure electronically adjusts the zero point of the compensator The plane of the dual axis compensator of the TPS1200 TS30 TM30 is defined by a longi tudinal component in direction of the telescope and a transversal component perpendicular to the telescope The longitudinal compensator index error I has a similar effect as the vertical index error and affects all vertical angle readings The transversal compensator index error t is similar to the tilting axis error The effect of this error to the Hz angle readings is 0 at the horizon and increases with steep sightings 08 wa a a TPS1200 TS30 TM30 541 Tools Check amp Adjust ATR collimation errors Tools Check amp Adjust pi dn a y c A b a Centre of prism b Crosshairs c V component of ATR collimation error TPS12_028 d Hz component of ATR collimation error The ATR collimation error is the angular divergence between the line of sight which means the direction in which the crosshairs points and the ATR CCD camera axis which detects the centre of the prism Hz and V angles are corrected by the Hz and V components of the ATR calibration errors to measure exactly to the centre of the prism Note that even after adjustment of the ATR the crosshairs might not be positioned exactly on the centre of the prism after an ATR search This is a normal effect To speed up the ATR search t
10. ed One run consists of a measurement in face and face II lt o a T axis gt shows the standard deviation of the determined tilting axis error The standard deviation can be calculated from the second run onwards Cs lItis recommended to measure at least 2 runs 6 MEAS F5 if more runs have to be added Continue with step 2 OR CONT F1 to accept the measurements and to access TOOLS T Axis Adjustment Result No more runs can be added later 11 45 IR a f TOOLS 8 sw g ae 8 Axis Adjustment Result New q 0 0000 CONT F1 To accept and record the new determined tilting axis error Writes to or appends to an existing logfile if the logfile recording has been enabled Refer to 29 4 Configure Check amp Adjust REDO F2 To reject the result and to repeat the complete check and adjust procedure Refer to step 2 of Q2a t paragraph Tilting axis adjustment step by conT REDO step Old g 0 0000 TPS1200 TS30 TM30 559 Tools Check amp Adjust Description of columns and fields Column Option Description New g r Shows the new determined and averaged tilting axis error The unit is displayed in Old g Shows the old instrument error which is currently valid on the instrument The unit is displayed in Next step IF the result is THEN to be stored CONT F1 overwrites the old tilting axis error with the n
11. ent screen CONF F2 Q2at To access the TOOLS Configuration screen CONT CONF Refer to 29 4 Configure Check amp Adjust TPS1200 TS30 TM30 544 Tools Check amp Adjust Description of the Check amp Adjust functions Function Description Refer to chapter Combined I t i c ATR To determine the t i c and ATR instrument errors 29 5 Tilting Axis a To determine the tilting axis a error 29 6 Compensator I t To determine the compensator I t errors 29 7 Current Values To view the current instrument errors 29 8 End Check amp Adjust To exit the TOOLS Check amp Adjust Menu Next step IF the task is to THEN determine the instru ment errors select one of the three available check and adjust procedures Combined I t i c ATR Tilting Axis a or Compensator I t adjust the circular level Refer to 29 9 Adjusting the Circular Level of the Instrument and Tribrach inspect the laser plummet Refer to 29 11 Inspecting the Laser Plummet of the Instrument adjust the tripod Refer to 29 12 Servicing the Tripod to end check and adjust select End Check amp Adjust TPS1200 TS30 TM30 545 29 4 Access step by step TOOLS Configuration Parameters page Tools Check amp Adjust Configure Check amp Adjust Step Description 1 Refer to 29 3 Accessing Check amp Adju
12. ew one to be determined REDO F2 rejects the new determined tilting axis error and repeats again the whole procedure Refer to step 2 of paragraph Tilting axis adjustment step by step Tools Check amp Adjust TPS1200 TS30 TM30 560 29 7 Access step by step Description Compensator index adjustment step by step Tools Check amp Adjust Compensator Adjustment I t Step Description 1 Refer to 29 3 Accessing Check amp Adjust Menu to access TOOLS Check amp Adjust Menu 2 In TOOLS Check amp Adjust Menu highlight Compensator I t 3 CONT F1 to access TOOLS Compensator Adjustment The compensator adjustment procedure determines the following instrument errors t Compensator longitudinal index error Compensator transversal index error The following table explains the most common settings Refer to the stated chapter for more information on screens Step Description Refer to chapter er Before determining the compensator index errors the instrument has to be e levelled up using the electronic level e protected from direct sunlight e acclimatised to the ambient temperature approximately two minutes per C difference compared to the storage place 29 1 TOOLS Check amp Adjust Menu TPS1200 TS30 TM30 561 Tools Check amp Adjust Step Description Select the option Compensator I
13. he telescope is not positioned exactly on the centre of the prism The small rest devi ations the ATR offsets are measured individually for each measurement and corrected electronically This means that the Hz and V angles are corrected twice first by the deter mined ATR errors for Hz and V and then by the individual small deviations of the current pointing the ATR offsets TPS1200 TS30 TM30 542 Summary of errors to be adjusted electronically Tools Check amp Adjust Instrument error Effects Hz Effects V Elimination Automatically with two face corrected with measurement proper adjust ment c Hz collimation error v v a Tilting axis error v v Compensator index error x v v t Compensator index error v a v i V Index error v v ATR Collimation error v v TPS1200 TS30 TM30 543 29 3 Access TOOLS Check amp Adjust Menu Tools Check amp Adjust Accessing Check amp Adjust Menu Select Main Menu Tools Check amp Adjust OR Press a hot key configured to access the screen TOOLS Check amp Adjust Menu Refer to 2 1 Hot Keys for information on hot keys OR Press USER Refer to 2 2 USER Key for information on the USER key att a E TOOLS tes STD E soep 2 Tilting Axis a 3 Compensator 1 t 4 Current Values 5 End Check amp Adjust CONT F1 To select the highlighted option and to continue with the subsequ
14. ined instrument errors Writes to or appends to an existing logfile if the logfile recording has been enabled Refer to 29 4 Configure Check amp Adjust REDO F2 To reject all results and to repeat the complete check and adjust procedure Refer to step 2 of Q2at paragraph Compensator index adjustment CONT REpo step by step Description of columns and fields Column Option Description New g Shows the new determined and averaged instrument errors The unit is displayed in TPS1200 TS30 TM30 563 Column Option Description Old g fje Shows the old instrument errors which are currently valid on the instrument The unit is displayed in Next step IF the results are THEN to be stored CONT F1 overwrites the old instrument errors with the new ones to be determined REDO F2 rejects the new determined instrument errors and repeats again the whole procedure Refer to step 2 of paragraph Compensator index adjustment step by step Tools Check amp Adjust TPS1200 TS30 TM30 564 29 8 Access TOOLS Current Values Tools Check amp Adjust Current Instrument Errors Step Description 1 Refer to 29 3 Accessing Check amp Adjust Menu to access TOOLS Check amp Adjust Menu 2 In TOOLS Check amp Adjust Menu highlight Current Values 3 CONT F1 to access TOOLS Current Values
15. nes if Yes is set in the Use column Tools Check amp Adjust TPS1200 TS30 TM30 554 Tools Check amp Adjust IF the results are THEN to be determined again REDO F2 rejects all new determined adjustment values and repeats the whole procedure Refer to step 2 of paragraph Combined proce dure step by step TPS1200 TS30 TM30 555 29 6 Access step by step Description Tilting axis adjustment step by step Tools Check amp Adjust Tilting Axis Adjustment a Step Description 1 Refer to 29 3 Accessing Check amp Adjust Menu to access TOOLS Check amp Adjust Menu 2 In TOOLS Check amp Adjust Menu highlight Tilting Axis a 3 CONT F1 to access TOOLS Tilting Axis Adjustment I This procedure determines the following instrument error a Tilting axis error The following table explains the most common settings Refer to the stated chapter for more information on screens Step Description Refer to chapter CS Before determining the tilting axis error the instrument has to be e levelled up using the electronic level e protected from direct sunlight e acclimatised to the ambient temperature approximately two minutes per C difference compared to the storage place The Hz collimation error has to be determined before 29 1 29 5 lt TOOLS Check amp Adjust Menu Select the option Tilting Axi
16. s a TPS1200 TS30 TM30 556 Tools Check amp Adjust Step Description Refer to chapter TOOLS Tilting Axis Adjustment TPS12_024a Aim the telescope accurately at a target at a distance of about 100 m For distances less than 100 m make sure to precisely point to the target The target must be positioned within at least 27 30 gon above or beneath the hori zontal plane K The procedure can be started in any telescope face CS The fine pointing has to be performed manually in both faces TPS1200 TS30 TM30 557 Tools Check amp Adjust Step Description Refer to chapter MEAS F1 to measure and to continue to the next screen _ Motorised instruments change automatically to the other face y TPS12_025 Non motorised TPS1200 instruments guide to the other face using the TOOLS Telescope Positioning screen TOOLS Tilting Axis Adjustment II MEAS F1 to measure the same target in the other face and to calcu late the tilting axis error If the error is bigger than the predefined limit the procedure has to be repeated The measurements of the current run are then rejected and not averaged with the results from previous runs TOOLS T Axis Adjustment Accuracy TPS1200 TS30 TM30 558 TOOLS T Axis Adjustment Result Step Description Refer to chapter lt No of Meas gt Shows the number of runs execut
17. st Menu to access TOOLS Check amp Adjust Menu 2 CONF F2 to access TOOLS Configuration 11 42 IR o a TOOLS 3 1 so Configuration Parameters Logfile Adjust Reminder ECM yey x CONT F1 To accept the settings and to return to the screen TOOLS Check amp Adjust Menu 02a PAGE F6 CONT PAGE To change to another page on this screen TPS1200 TS30 TM30 546 TOOLS Configuration Logfile page Tools Check amp Adjust Description of fields Field Option Description lt Adjust 2 weeks A reminder message is displayed each time the Reminder gt 1 month instrument is turned on if one or more adjustment 3 months values were determined longer ago than the time 6 months specified with this parameter This helps to redeter 12 months or mine the instrument errors on a regular basis Never A reminder message to readjust the instrument is never displayed This setting is not recommended Next step PAGE F6 changes to the Logfile page Description of fields Field Option Description lt Write Logfile gt Yes or No To generate a logfile when the application program is exited A logfile is a file to which data from an application program is written to It is generated using the selected lt Format File gt lt File Name gt Choicelist Available for lt Write Logfile Yes gt The name of the file to which the d
18. t Refer to chapter TOOLS Compensator Adjustment MEAS F1 to measure the first face No target has to be aimed at Motorised instruments change to the other face and release a measurement automatically Non motorised TPS1200 instruments guide to the other face using the TOOLS Telescope Positioning screen MEAS F1 to release the measurement in the other face TPS12_025a If one or more errors are bigger than the predefined limits the proce dure has to be repeated All measurements of the current run are rejected and are not averaged with the results from previous runs TOOLS Comp Adjustment Accuracy lt No of Meas gt Shows the number of runs executed One run consists of a measurement in face and face Il lt o Comp gt and lt o t Comp gt show the standard deviations of the determined adjustment errors The standard deviations can be calcu lated from the second run onwards It is recommended to measure at least two runs TPS1200 TS30 TM30 562 TOOLS Comp Adjustment Results Tools Check amp Adjust Step Description Refer to chapter 4 MEAS F5 if more runs have to be added Continue with step 2 OR CONT F1 to accept the measurements and to access TOOLS Comp Adjustment Results No more runs can be added later 11 46 a i TOOLS Bn STD Comp Adjustment sol a Bo 8 CONT F1 To accept and record the new determ
19. t TPS1200 TS30 TM30 535 Precise measurements Tools Check amp Adjust To get precise measurements in the daily work it is important To check and adjust the instrument from time to time To take high precision measurements during the check and adjust procedures To measure targets in two faces Some of the instrument errors are eliminated by aver aging the angles from both faces To follow the four advices below During the manufacturing process the instrument errors are carefully determined and set to zero As mentioned above these errors can change and it is highly recommended to rede termine them in the following situations Before the first use Before every high precision survey After rough or long transportations After long working periods After long storage periods If the temperature difference between current environment and the temperature at the last calibration is more than 20 C Before determining the instrument errors the instrument has to be levelled up D using the electronic level SHIFT F12 to access STATUS Level amp Laser Plummet Refer to 31 7 STATUS Level amp Laser Plummet The tribrach the tripod and the underground should be very stable and secure from vibrations or other disturbances TPS1200 TS30 TM30 536 Tools Check amp Adjust The instrument should be protected from direct sunlight in order to avoid thermal warming in general and especi
Download Pdf Manuals
Related Search