LDT-05 - EngineerSupply
Contents
1. 28 1205 Eyepiece 28 1105 Telescope clamp screw 28 1112 LCD display II S28 1107 Tubular vial 1217 Circular vial Function of Buttons 1 One of the functions for entering into initial setting of the instrument ON OFF ON OFF power for the instrument 2 Onie Ou tie function buttons for entering into index error setting 3 One of the function buttons for entering into compensation setting rea Button for illumination of Reticle and LCD Disp Menu selection button in initial setting One of the function buttons for Reset of horizontal angle entering into Compensator setting zeroing One of the function buttons for entering into initial setting of the instrument Menu selection button in initial setting HOLD One of the function buttons for gt Horizontal angle hold button entering into initial setting of the instrument One of the function buttons for entering into index error setting Menu selection button in initial 5 setting R L Increment of left rotation and lt right rotation of horizontal angle One of the function buttons for entering into initial setting of the instrument One of the function buttons for entering into initial setting of the V Vertical angle and slope convert instrument Button for confirmation after initial setting of the instrument 5 Preparation before Measurement 5 1 Preparation of Battery 5 1 1 Ch2. 00 00 2 Selecting the Direction of P Measurement of Horizontal Angle 90 00 10 o 1 u Press R L button to change the 150 36 10 direction of measurement of the horizontal angle When HR is displayed the angle increases with clockwise turning of the collimation unit 90 00 10 199 23 50 When HL is displayed the angle increases with counter clockwise turning of the collimation unit 17 6 Operation Method 3 Holding Horizontal Angle V o 1 u Press HOLD button the horizontal 4 EnA angle will be held the reading of RL the horizontal angle will remain unchanged even if the direction of collimation is changed Press v EEE HOLD button again the hold of 90 00 10 horizontal angle is released i 150 36 10 6 3 Turning Off Press ON OFF button OFF will be displayed 4 at the position of vertical angle display after RL a beep release ON OFF button the instrument is turned off OFF 150 36 10 6 4 Measuring Distance Using the Stadia Method Take reading from the staff gauge using the stadia hair on the reticle of the telescope Multiply reading by 100 we obtain the actual distance L from the target to the measured point 100 is the multiplication constant error of the instrument i e L 1x100 Fig 6 3 Fig 6 4 18 6 Operation Method 6 5 Installation and Removal of the Base 6 5 1 Remove of the Base 1 Turn the screw on knob 5 3004 outw
3. Fix the instrument on the tripod and perform precise leveling up 2 Set an target point A 50m away from instrument Aim the telescope at target point A and adjust the vertical fine movement If point A moves along the vertical hair of the reticle no adjustment is required perform adjustment if the target point A strays from the vertical hair 7 4 2 Adjustment 1 Remove the protective cover of the reticle and slightly loosen the four adjusting screws Turn the assembly so that point A coincides with the vertical hair Retighten the four adjusting screws Repeat step 3 in 7 4 1 and step 1 in 7 4 2 until there is no error 7 Inspection and Adjustment Fig 7 5 7 5 Collimation Discrepancy 7L 7 5 2 1 Inspection Fix the instrument on the tripod and perform precise leveling up Aim at object point A in the distance with the normal posi tion of telescope and take the reading of the horizontal angle HRnorm and aim at object A with the reverse position of the telescope and take the reading of the horizontal angle HRrev then Collimation Error C HRnorm HRrev 180 2 f C lt 10 no adjustment is required if C gt 10 adjustment is required Adjustment 1 Adjust the horizontal fine motion in the reverse position of the telescope so that the reverse reading HRrev HRrev C Remove the protective cover of the reticle of the telescope and adjust both the left and right adjusting
4. 2 4 5 2 5 Extend the tripod to the desired height Ensure that the measure point is exactly under the central hole of the tripod head Level up the tripod this is very important when centering with plumb bob Ensure that all locking handles are securely tightened Secure the instrument to the tripod Leveling up of the Instrument 53 1 5 3 2 5 3 3 5 3 4 Centering the circle vial using leveling screws A B and C Presume that the three leveling screws be A B and C Turn the collimation unit so that the axis of the tubular vial is parallel to the connecting line of B and C adjust B and C so that the tubular vial is centered as shown in 1 of Fig 5 3 Turn the collimation 90 adjust the leveling screw A and center the bubble Repeat 5 3 2 5 3 3 until the bubble is the centered when observed from both directions 5 Preparation before Measurement 5 3 5 After 5 3 2 is complete turn collimation unit 180 If the tubular vial is still centered the leveling up of the instrument is complete If the bubble strays from the center perform leveling up with the procedure for adjustment of tubular vial in Inspection and Adjustment 5 4 Centering 5 4 1 Centering with Plumb Bob 1 Tie the plumb bob wire to the hook on the central screw Ad just the length of the wire so that the tip of the bob is 1 8 2mm above ground 2 Loosen the central screw and move the base so that the tip of the plumb
5. LDT 05 Digital electronic theodolite User Manual Use and Scope of Application of the instrument Main Technical Parameters Structure Function of Buttons wm KR WN e Preparation before Measurement 5 1 Preparation of Battery 5 2 Set up of the Instrument 5 3 Leveling of the Instrument 5 4 Centering 5 5 Collimation 5 6 Initial Setting 6 Operation Method 6 1 Start Up 6 2 Measurement of Angles 6 3 Turning Off 6 4 Measuring Distance Using the Stadia Method 6 5 Installation and Removal of Base 7 Inspection and Adjustment 7 1 Tubular vial 7 2 Circular vial 7 3 Laser Plummet 7 4 Perpendicularity of Vertical Hair of Reticle of Telescope 7 5 Collimation error 7 6 Index Error of Vertical Circle 8 Accessories 9 Error Information Carefully read and understand this manual before use G Do not directly aim the telescope to the sun to avoid injury to your eyes Do not loosen or remove any screw s of the instrument Protect the instrument from hard shocks Do not carry the instrument mounted on a tripod on your shoulder Do not expose the instrument under the sun for long periods of time and keep away from heat source to avoid damage Sudden changes of temperature will influence the precision of measure ment and the normal operation of the electronic system and may cause fogging on the object lens When the instrument is taken from the cold weather outdoors to indoors it must be placed in a war
6. ard using flat screw driver until it no more limits position 2 Turn knob 5 3004 180 counter clockwise holding the base with one hand and take the main body of the instrument off the base as shown in Fig 6 5 6 5 2 Installation of the Base 1 Turn the knob 5 3004 counter clockwise until it reaches the position limit Make the positioning block 3 4001 on the main body of the instrument is in line with the notch on the base and install the main body onto the base as shown in Fig 6 6 2 Turn the knob 5 3004 clockwise until it reaches the position limit so that the A mark points downward Turn the screw until it can limit position S3 4001 Positioning Block S5 3004 knob Fig 6 5 Fig 6 6 19 7 Inspection and Adjustment 7 1 Tubular vial 7 1 1 Inspection 1 Fix the instrument to the tripod and roughly level up the instru ment and make the tubular vial parallel to the connecting line of two of the three leveling screws on the base Adjust the two leveling screws so that the tubular vial is centered 2 Turn the instrument 180 and check if the bubble remains centered 3 If the bubble remains centered no adjustment is required otherwise perform adjustment as follows 7 1 2 Adjustment 1 Adjust the bubble adjusting screw so that the bubble moves toward tube center for half the off center value as shown in Fig 7 1 Fig 7 1 2 Turn the leveling screw to correct the other half off
7. bob is precisely positioned to the ground point when observed from two directions perpendicular to each other 5 4 2 Centering with Laser plummet To ensure maximum measuring precision we recommend the performance of the steps described in Inspection and Adjustment before using this instrument 1 View the laser beam in relation to the desired target point Loosen the central screw to translate the whole instrument be sure not to turn the instrument so that the ground point coin cides with the central point of the laser Retighten the central screw 2 Perform precise leveling up of the instrument as described in 5 3 and repeat the operation in 1 of 5 4 2 until the instrument is precisely leveled up and the center of the laser precisely coincides with the ground point as shown in Fig 5 4 Ground point Fig 5 4 ji 5 Preparation before Measurement 5 5 Collimation 5 5 1 Adjustment of diopter Direct the telescope to a bright background Turn the eyepiece knob so that the cross hairs of the reticle are clearly seen 5 5 2 Elimination of Optical Parallax Adjust the focusing knob so that the object forms an image on the reticle Move your eyes up and down to see if the image of the object moves relative to the graduation lines If it does not move there is no optical parallax otherwise turn the focusing knob to eliminate the optical parallax 5 6 Initial Settings Before you start measuring please conf
8. center so that the bubble stays centered 3 Repeat steps in 7 1 1 and 7 1 2 until the long level is centered when the instrument is at any position 20 7 Inspection and Adjustment 7 2 Circle vial After making sure that the long level is correctly adjusted check if there is any off center with the round level If it is centered no adjustment is required otherwise adjust the three adjustment screws with needle as shown in Fig 7 2 to center the bubble Fig 7 2 7 3 Optical Plummet Not applicable to LDT 05 units with laser plummet 7 3 1 Inspection 1 Set the instrument on the tripod no adjustment is required 2 Place the cross mark exactly under the instrument 3 Adjust the image of the object so that is in focus Using the optical plummet adjust the leveling screws so that the cross mark moves to the center of the reticle 4 Turn the instrument for 180 5 If the cross mark remains at the center of the reticle no adjust ment is required otherwise adjust as follows 21 7 Inspection and Adjustment 7 3 2 Adjustment Adjust the adjustment screw of the reticle using the needle so that the cross mark moves to halfway of the off center as shown in Fig 7 3 and Fig 7 4 Repeat the steps 3 5 in 7 3 1 and step 1 in 7 3 2 until the cross mark coincides with the center Half distance Fig 7 3 7 4 Perpendicularity of Vertical Hair of Reticle of Telescope 22 7 4 1 Inspection 1
9. e reverse position refers to observation with the object lens facing right ahead the vertical encoder being on the right The mechanical errors can be offset by the average of the values of measured in the normal and reverse posi tions 15 6 Operation Method Measurement of Vertical Angle 16 1 Measurement of 0 angle of vertical angle 0 angle position can be set as follows in the initial setting ZEN 0 Zenith 0 Fig 6 2 2 Compensation of the tilt sensor to Vertical Angle If the instrument is inclined within 3 the tilt sensor compensates to the vertical angle If the inclination is greater than 3 the instrument will display as shown in the figure Display of slope Press V button the vertical angle display is turned into a slope display press V button the vertical angle display is resumed Note When vertical angle is turned into slope the precision of slope is to the fourth digit after the decimal ZEN 90 Zenith 90 90 00 10 108 36 38 TILT 108 36 38 69 11 00 108 36 38 38 88 108 36 38 6 Operation Method The value of slope is effective 3 within 45 there will be no v ee a slope display exceeding this range H 69 11 00 Ji 150 36 10 6 2 2 Measurement of Horizontal Angle Vv iugi 1 Reset of Horizontal Angle H 90 00 10 150 36 10 Press OSET button the horizontal angle returns to zero 90 00 10 00
10. ecking the Electric Quantity of Battery Case Refer to 6 1 3 5 1 2 Removal of Battery Case 1 Turn the knob of the battery case and let the mark Y point to UNLOCK take the battery case off as shown in Fig 5 1 2 Open the case cover insert four AA batteries into the battery case according to and 3 Insert the raised part at the bottom of the battery case into the slot of the right battery cover and put the battery case in place Then turn the knob and let the mark W point to LOCK as shown in Fig 5 2 Fig 5 1 5 Preparation before Measurement 5 1 3 Recharging the Battery 1 Remove the charger from the instrument case and connect the charger to AC 110V power source The green light on the charger is lit 2 Insert the charger plug into the charging port of the battery case The green light of the charger turns red the charging process is started After 3 4 hours when the red light turns green it indicates that the charging process is complete ATTENTION The four batteries in the battery case should be of the same brand type Do not use batteries which have different remaining capacities When batteries are wet dry them immediately and take them out of the instrument case air dry thoroughly When the battery case is removed from the unit power must be off to avoid damage or problems 5 Preparation before Measurement 5 2 Set up of the Instrument 5 3 10 521 5 2 2 5 2 3 5
11. irm all initial settings Items in bold indicate factory settings Initial Setting Selection 1 Unit of Angle 360 400G 6400 UNITA UNITB UNITC 2 Zenith Angle ZEN ZEN 90 3 Auto Power Off Time 30 OFF NO OFF 4 Min Display DSPI DSP5 5 Compensator Switch V TILT ON V TILT OFF 6 Indication of Position of Horizontal Angle NO BEEP 90 BEEP 5 6 1 Method of Setting Press and hold HOLD button OSET button and press ON OFF button Release ON OFF button when full character display appears and release HOLD OSET buttons when four beeps are heard The instrument enters into initial setting mode and the LCD displays 12 5 Preparation before Measurement V 360 au UNITA 1 Press gt button or lt button for turning pages and selecting options 2 Press A button for selecting specific content in the options 3 Finally press V button to confirm and enter into angle measuring mode 5 6 2 Setting of Items 1 Unit of Angle UNIT A 360 Degree UNIT B 400 GON UNIT C 6400 Mil 2 Zero Position of Vertical Angle ZEN 0 Zenith being 0 ZEN 90 Zenith being 90 V 360 aut UNITA ZEN 90 VERTICAL 3 Auto Power off Time NO OFF Auto power off disabled 30 OFF Turns power off if no action within 30min NO OFF AUTO OFF 4 Minimum Display DSP 1 DSP 1 minimum display being 1 DSP 5 minimum display being 5 DSP 10
12. is 5 This series of electronic theodolite adapts to wide applications in the Grade III and Grade IV triangle control measurement in national and urban projects in cluding engineering measurement in railway highway bridge water conservan cy mining projects etc It can be also used in various engineering construction and topographic surveys 2 Main Technical Parameters Telescope Angle Measurement System Optical Plummet Vial sensitivity Mode of angle measurement Detection method Precision of angle measurement Angle unit Display Compensator range Angle of View Tubular vial Magnification ratio Ambient temperature range Power Source voltage Duration of operation Erect 45mm 30x 1 30 100 1 35m 3 Photoelectric incremental reading 5 H both sides V single side 5 DEG MIL GON LCD double sides Yes vertical Erect o Ww I w wn 0 5m 30 2mm 8 2mm 20 C 50 C Alkaline ba battery 4 8V Alkaline ba ery rechargeable Ni H ery 36h 3 Structure 28 3012 Handle S 28 6015 Screw of handle 28 1201 Objective lens 28 1104 28 1109 Horizontal LCD Display 1 clamp screw 28 1106 Laser plummet 55 4 1103 Leveling screw S5 3004 Tribach locking lever 3 Structure part 2 28 1103 S28 6045 Focusing knob S28 1107 Collimator
13. m place to allow any fog to evaporate This instrument contains many sensitive electronic components and is pro vided with protection against dust and moisture If dust or moisture enters into the instrument damage to the instrument may result Therefore after using in a humid environment the instrument must be dried immediately and stored in the instrument case The display of LCD system will be affected in operation under low tem peratures It is recommended to start the instrument in advance before operation The battery must be removed from the instrument if it is to be out of service for a long time Before placing the instrument into he instrument case align the dot mark of the instrument up ward and on the same line and lightly ighten the clamp knobs then loos en after the instrument is placed in he case All the clamp knobs must be slightly tightened again after the instrument is in place in the case for transport 1 Use and Scope of Application of the Instrument This series of electronic theodolite adopts the photoelectric incremental angle measuring system They integrate optical mechanical electronic and computer technologies all in one realizing a variety of functions including angle measure ment display and storage They can also display horizontal and vertical angles and realize conversion from vertical angle to gradient and compensation of vertical angle The precision of angle measurement
14. minimum display being 10 13 5 Preparation before Measurement 5 Setting of compensator V TILT ON Turn on the compensator TILT ON V TILT OFF Turn off the compensator 6 Indication of Horizontal Angle NO BEEP Horizontal angle ON BEEP indication disabled 90 BEEP Beeps when the instrument is close to 0 90 180 and 270 14 6 Operation Method 6 1 Start Up 6 1 1 Press and hold ON OFF button Release ON OFF button when the full character display appears The LCD displays SETO Rh 150 36 10 6 1 2 Sway the telescope up and down ward when the instrument is in the normal position A beep occurs and the LCD displays vertical angle The instrument enters into measuring mode 6 1 3 After the power is switched on and the instrument has entered into measuring mode the battery energy consumption is indicated by the battery symbol in the lower right corner of LCD 1 If all of the three cubes are displayed it indicates that the bat tery is fully 2 Decreasing of the cubes indicates the reduction of charge 3 If the battery symbol twinkles it indicates a low battery and recharging is required Vv 86 28 48 H 150 36 10 the battery symbol 6 2 Measurement of Angles e Observing in the Normal and Reverse Positions of the Telescope The normal position of the telescope refers to observation with the object lens facing right ahead the vertical encoder being on the left th
15. nd 2 needles 2 x bags of desiccant 1 x instruction manual 1 x battery case 9 Error Information display meaning and dealing method E01 count error if displayed repetitively repair is needed TOO FAST the telescope or collimation unit rotated too fast press any key except on off and A the instrument returns to normal state E04 horizontal sensor error repair is needed E05 horizontal sensor Il error repair is needed E06 vertical sensor error repair is needed TILT he tilt sensor is out of range level the instrument again if in vain repair is needed Note Turn off he instrument still functions the tilt sensor and Due to our policy o product design and specification without prior notification continuous improvement we reserve he right to alter Illustrations descriptions and technical specifications are not binding and may change Printed in USA SAP 8227238
16. screws so that the verti cal hair of the reticle coincides with object A Repeat the steps in 7 5 1 and 7 5 2 until acceptable condi tion is reached 23 7 Inspection and Adjustment 7 6 Index Error of Vertical Circle 7 6 1 Inspection 1 Fix the instrument on the tripod and perform precise leveling up 2 Aim the telescope at any object point P in the normal position and take the reading of vertical angle Vnorm 3 Turn the telescope to the reverse position and aim it at point P again Take the reading of other vertical angle VRev If Vnorm VRev 360 21 I lt 15 no adjustment is required otherwise perform adjustment as follows 7 6 2 Adjustment 1 Press and hold R L HOLD buttons and press ON OFF button Release ON OFF button when full character display appears and release R L HOLD buttons when four beeps are heard 2 Sway the telescope near horizontal 96 23 43 plane with instrument in the normal ee FACE 1 position and allow vertical angle to be reset after zero cross Aim the telescope in the normal position at object P and press PEET OSET to confirm 272 36 06 Aim the telescope in the reverse FACE 2 position at object P and press ni OSET to confirm With this the compensation of index error is completed 90 00 10 150 36 10 24 8 Accessories 1 x rain cover 1 x charger 1 x plumb bob 1 x tool kit containing a screw driver a
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