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1. 5 Remove 6 cross head screws M2x6 as indicated counterclockwise using a cross screwdriver 6 Use tweezers to pull the flat wire plug as indicated out from the socket and then remove the mainboard 7 Remove 4 slotted head screws M2x10 as indicated counterclockwise using a Straight screwdriver 8 Pull the flat wire plug as indicated out from the socket and then remove the LCD 20 Operation steps Indicating picture 9 Remove 4 flat head screws M2 5x6 and a button head screw M2 5x6 as indicated counterclockwise using a cross screwdriver Button Head Srews 10 Take out the wire connecting mainboard and the battery side cover as indicated and then remove the cover 11 Remove the flat head hexagonal screw M3x4 as indicated counterclockwise using a hexagonal screwdriver Take out the wire connecting mainboard and the laser plummet as indicated and then remove the laser plummet 12 Remove the flat head hexagonal screw M3x4 as indicated counterclockwise using a hexagonal screwdriver and then take out the vertical clamp tangent 21 Operation steps Indicating picture 13 Remove the hexagonal screw M3x4 as indicated counterclockwise using a hexagonal screwdriver and then take out the horizontal clamp tangent 14 Remove 2 flat cross head screws M2x5 as indicated counterclockwise using a cross screwdriver Use an electric iron to weld 4 wires with different colors red g2. If you need to repair the instrument please ask professional service guys to do the maintenance If the instrument damage 1s caused by personal behavior going against service manual the responsibility is definitely belongs to individual If you can t repair the above failures please send the instrument back to our company for repair 29
3. Of Telescope Reticle a Check 1 Place se instrument on a tripod and ger IS P pr level it precisely i X x 2 Set an object A 50 meters away from T RA i the instrument va N j 3 Collimate object A through the NA Pe NW Ar XA ta x Nec telescope and move object A to edge of EMN the field of view with vertical tangent screw point A Adjustment is not l 3 Adjusting necessary if object A moves along the su vertical line of the reticle and point A still in the vertical line As illustrated 1f A offsets from the center to the cross hair tilts need to adjust the reticle b Adjust 1 Mount the instrument and set objet A 50 meters away 2 Remove the eyepiece cover to expose the four reticle adjusting screws Loosen all the adjusting screws uniformly with an adjusting pin and rotate the reticle around the sight line Align the vertical line of Picture E reticle with point A and then tighten reticle adjusting screws uniformly 3 Repeat step 3 in 4 5 a and 2 in 4 5 b until there is no deviation 10 4 5 Laser Alignment Component a Check 1 Place the instrument on a tripod and level it precisely Put a piece of paper Laser Alignment with two crisscross lines on it 50 meters right before the instrument 2 Turn on the laser alignment and adjust the laser luminance to a proper level Adjust the laser spot to coincide with the intersection point 3 Adjust the telescope
4. eyepiece and focusing knob to make the telescope reticle and the front crisscross both clear Observe through the telescope whether the laser spot is in the center of reticle If the laser spot coincides with the reticle center no adjustment is necessary Otherwise the following adjustment is required b Adjust 1 Adjust the telescope eyepiece and focusing knob to make the telescope reticle and the front crisscross both clear and coincide with each other 2 Observe the move of laser spot through telescope while adjusting 4 screws on laser alignment until the laser spot coincide with reticle center Picture F Note The force power fixing 4 adjusting screws must be consistent at last 11 c Replace The Laser Tube 1 If you turn on the laser plummet with correct operation and the wire of laser tube is well connected and still can t get laser beam In this case replace the laser tube 2 Remove 3 fixing screws M2x12 counterclockwise and take off the cover of laser alignment 3 Remove 4 adjusting screws M2x5 counterclockwise and pull the laser collimator out gently 4 Put tweezers into the slots as the picture indicated and tweak the laser collimator off Use an electric iron to weld 3 wires off and then take out the laser tube 5 Install a new laser tube as the picture indicated and make sure 3 wires with different colors red black and blue match Note The power of diode used in l
5. and press OSET Record the present vertical angle as X3 7 Mark the maximum angle as Xmax and the minimum X min Calculate X Picture M d Xmax Xmin If X gt 6 readjust the compensation until A lt 6 17 c Zero Compensation Of The Compensator 1 Place the instrument on a stable device and level it precisely 2 Press and hold OSET and ANG button when turn on the power The interface is shown as picture N a 3 Press HOLD and come to the interface shown as picture N b 4 In front face collimate the reticle of a horizontal collimator and press OSET 5 In reverse face after collimating the reticle press OSET 6 Press D L R to show the compensating angle picture N c Record the compensating angle in front and reverse face as Y1 and Y2 separately shown as picture K Calculate Y Y1 Y2 If Y gt 30 readjust the compensation until Y lt 30 Picture N c 18 5 Disassemble the Inatrument Indicating picture 1 Remove handle Loosen the handle a locking screws counterclockwise and then remove the handle 2 Press the battery locking button and remove the battery 3 Remove and wash side cover Remove 5 cross head screws M2 5x10 as indicated counterclockwise using a cross screwdriver 4 Use tweezers to pull the buzzer plug as indicated out from the socket and then remove the side cover Operation steps Indicating picture
6. aser alignment is higher than that in laser Two Slots plummet Don t mix them up After replacing laser tube and still can t get laser beam recheck your operation and make sure it is not caused by bad welding or broken wire In this case send the instrument back to us Red Black Blue Schematic Position of Three Wires with Different Colour Picture G 12 4 6 Perpendicularity Between Line Of Sight And Horizontal Axis C a Check 1 Place the instrument on a stable Example device and level it precisely HL 000 00 00 2 Collimate the reticle of a HR 180 00 40 collimator or a clear object far away C HL HR 180 2 20 about 100 meters from the C gt 10 the adjustment is instrument and turn on the power required Read the horizontal angle value in HR HR C 180 00 20 front face Loosen the vertical and horizontal clamp screws and rotate the telescope Sight the reticle in reverse face and read the horizontal angle value 3 After getting two angle values HL and HR calculate the difference C HL HR 180 2 If C lt 10 no adjustment is necessary If C gt 10 the following adjustment is required b Adjust Focusing knob 1 Adjust the horizontal tangent in reverse face and make the horizontal angle value HR HR C 2 Take off the cover of the reticle Adjusting Srews between eyepiece and focusing knob XY Tweak the left and right adjusting screws by loosening one and tighten
7. ating cable if there is no output If all the hardware are work well and it still can t communicate send the instrument back 6 Time display adjustment and failure maintenance If date or time can t display or there is always a deviation replace the button cell of mainboard and readjust time and date If it still can t display correctly send the instrument back for repair 7 LCD background light failure According to the steps in section 5 to remove LCD and check the connecting cables Check background light diode if LCD connects well Replace the diode of the same model to fix it If there is still a failure after replacement send the instrument back for repair 8 Laser emission failed Check if the button can activate second functions If it works well check if the connecting cable plug is off or wires of conducting ring isn t connecting well or electric brushes deviate from slot If you can t repair it by yourself send the instrument back for repair 9 Compensator failure Turn on the instrument to check if it works well If you can t turn on the instrument check if the ground electrode of compensator and 27 mainboard coincide If you can turn on the instrument check if the wires of compensator are connecting correctly You can replace a new compensator to check if the old one if broke down or not 10 Start failure a Power on failure Check the battery and power supply of mainboard If it works well check the mai
8. cy mine etc and the installation of buildings and large equipments as well as cadastral and topographic surveying This manual is applicable to DE2A DE2A L DE2B DESA DESB DEIOA DE10B and other DE Series electronic theodolite The numbers 2 5 10 means the precision of angle measurement A means with compensator B means without compensator 2 Precautions 1 When failure occurs please follow the instruction of this manual and debug as the photos guidance If the instrument damage is caused by personal behavior going against service manual the responsibility is definitely belongs to individual 2 If the instrument failures involving some main components such as mainboard grating disk reading terminal telescope LCD etc please replace the whole component Do not repair it 3 When replacing components please strictly according to the service manual Do not disassemble the instrument unauthorized if the repairing method is not involved in this manual In this case please send it back to our company for repair 4 After replacing components you should calibrate the overall specifications Before using the instrument please confirm all the specifications eligible 5 Electronic theodolite 1s a precision instrument If you don t have professional maintenance skills or equipment do not repair the total station unauthorized to avoid damaging it 6 This service manual is only for the DE Series of Changzhou Dadi Surveying Scie
9. ddle of vial in all directions Tweak the adjusting screw with an adjusting pin Picture B 4 2 Circular Vial a Check 1 Place the instrument on a stable device 2 Check and adjust the plate vial 3 Observe the bubble in circular vial If the bubble remains in the center no adjustment is necessary Otherwise the following adjustment is required b Adjust Cireular Vial 1 Place the instrument on a stable device 2 Check and adjust the plate vial 3 Tweak two adjusting screws with a correction pin to keep the bubble centered in the vial loosen the screw one or two opposite with bubble deflective direction tighten the screw on the direction accordant deflective until circular bubble is centered Note Be gentle while using adjusting pin to calibrate screws The force power fixing two adjusting screws must be consistent when circular level is centered at last Adjusting Screws Picture C 4 3 Laser Plummet a Check 1 Place the instrument on a tripod and fix it 2 Put a piece of paper with two crisscross lines on it right below the instrument 3 Turn on the laser plummet and adjust the laser luminance to a proper level 4 Adjust 3 leveling screws to make the laser spot coincides with the intersection ia point of the paper Pli mnet 5 Rotate the instrument around the vertical axis If the laser spot always coincides with the intersection point no adjustment is nece
10. end it back to us for repair 2 Horizontal vertical clamp tangent break down According to the steps in section 5 to remove horizontal vertical clamp tangent After adjusting the cam and checking other parts reassemble the horizontal vertical clamp tangent If it still can t work please replace the horizontal vertical clamp tangent 3 Large vertical index difference 1 Adjust the vertical index difference according to steps in section 4 If 1 gt 15 after adjustment turn off the compensator and adjust again Zero drift of the compensator will result in a large vertical index difference If you can t make 1 lt 15 send the instrument back to our company for repair 4 LCD display failure a Stroke segment Watch the LCD from one side If there is a stroke segment check if there is a button stuck in the board or the resistances on LCD are not damaged or the wire plug of LCD 1s still connected b Nothing display If there is nothing display check if the wire plug of LCD is still connected and check the main single chip next Use an oscilloscope to check if the crystal oscillator is still work If the crystal oscillator is damaged replace it The mainboard should be replaced if there 1s still fault after replacing the oscillator Note If you can t repair the fault by yourself send the instrument back to us 5 Communication port Connect the COM plug and the adjusting equipment to see if there is an output Check the communic
11. f Picture J a the power i 3 Press and hold L R button when turn on the power The interface is shown as picture J b 4 In front face collimate the reticle of a horizontal collimator and press OSET 5 Collimate the target in reverse face and press OSET Picture J c Record the vertical angle as VR Collimate the target again in front face and record the vertical angle as VL 6 Calculate the vertical index difference I VL VR 360 2 7 If I gt 15 recheck the vertical index difference If I gt 15 after Picture J c rechecking the instrument send it back to our company for repair 15 4 9 Vertical Index Difference Compensation a Installation And Adjustment 1 Place the instrument on a stable device and level it precisely Put the plate vial face to operator front face 2 Use two pairs of M3x8 hexagonal bolts and oi spring washers to fix the compensator and wire up the plug as picture H indicated 3 After turn on the power press A ENT to enter main menu Press Measure distance to choose SET 1 Press VW to show ON on screen Picture K bottom as picture L a indicated Press ENT to save the settings 4 Press 0 L R to show the compensating angle as picture L b indicated 5 Use a hammer or other tools with plastic or wooden handle to knock one side of the compensator gently do not Picture L a deform or damage
12. ing the other to make the vertical line of reticle coincides with the collimator or the object 3 Repeat the check and adjustment until C lt 10 Note After adjustment need to check the photo electricity coaxiality Picture H 13 4 7 Check of 2C 1 Place the instrument on a stable device and level it precisely 2 Press and hold L R button when turn on the power The interface 1s shown as picture I a 3 In front face collimate the reticle a i gt of a horizontal collimator and press Picture I a OSET shown as picture I b 4 Collimate the reticle in reverse face and press OSET 5 Collimate the reticle in front face again and press OSET The horizontal angle is 0 00 00 as picture I c indicated 6 Collimate the reticle in reverse face again and record the present Picture I b horizontal angle as X 7 Calculate A C 180 X IfA C gt 8 recheck the perpendicularity between line of sight and horizontal axis C ITA C gt 8 after rechecking the instrument send it back to our company for repair Picture I c 14 4 8 Vertical Index Difference I 1 Place the instrument on a stable device and level it precisely 2 Turn on the power and press Qi ENT to enter main menu Press amp Measure distance to choose SET 2 Press VW to show ON on screen bottom as picture J a indicated Press ENT and turn of
13. it until the compensating angle on the screen less than 20 Tighten the compensator fixing bolts and record present compensating angle as BCI After rotating the instrument 180 knock the compensator again to adjust the angle and record present value as BC2 6 Repeat step 4 until BC1 BC21 lt 30 Picture L b 16 b Linear Compensation Of The Compensator 1 Place the instrument on a stable device and level it precisely 2 Press and hold OSET and ANG button when turn on the power The interface is shown as picture M a 3 Press L R and come to the interface shown as picture M b Picture M a Adjust leveling screws to make the compensating angle on the screen zero The present vertical angle 1s recorded as 0 4 In front face collimate the reticle of a horizontal collimator and adjust vertical tangent to make the vertical angle 0 3 Adjust the leveling screw to collimate the reticle again and Picture M b press OSET as picture M c indicated Record the present vertical angle as X1 5 Adjust vertical tangent to make the vertical angle 0 3 Adjust the leveling screw to collimate the reticle again and press OSET to save the adjustment picture M d Record Picture M c the present vertical angle as X2 6 Press D L R to show the compensating angle Adjust leveling 3 LP screws to make it zero as picture G a indicated
14. nboard b Crash Fault Check if buttons stuck in the board Remove the board to adjust buttons and restart the instrument Note While finding the above failures please disassemble the instrument following steps in this manual and ask professional service guys to do the maintenance If the instrument damage 1s caused by personal behavior going against service manual the responsibility 1s definitely belongs to individual If you need to replace some main components please send the instrument back to our company No other brand components allowed to be used on the instrument 28 7 2 Error Code And Failure Maintenance 1 E 302 a Poor signal adjust the signal input of horizontal grating b Dirty horizontal grating clean the grating c Dirty or broken CCD clean or replace CCD d Sunlight leak in through cover check the cover e Broken angle measurement mainboard replace the mainboard f The telescope rotating too fast protective error 2 E 303 E 304 E 305 a Poor signal adjust the signal input of vertical grating b Dirty vertical grating clean the grating c Dirty or broken CCD clean or replace CCD d Sunlight leak in through cover check the cover e Broken angle measurement mainboard replace the mainboard f The telescope rotating too fast protective error 3 E 108 Compensation failure reassemble or replace the compensator Note The above shows error codes and their description
15. nce amp Technology Co Ltd Anything unclear during maintenance please contact us 3 Product Instruction 3 1 External Components DE2A L Laser Electronic theodolite Instrument center Telescope Focusing Knob Handle Locking Screw le Pe ea Side Cover Laser Plummet Laser Alignment Eyepiece Cover Eyepiece Horizontal Tangent gt Display Horizontal Clamp Circular Vial Base Handle Battery Locking Objective Cover Battery Objective Collimator Instrument Number Vertical Clamp Plate Vial Adjusting Screw ical T Plate Vial Vertical Tangent Base Right Side Cover Tribrach Srew Leveling Screw 3 2 Display And Keypad a Display FRED al He cS The adopted LCD can display angle words date time or other information There are ten buttons on display The red button is a power switch button Under angle measurement mode other functions are illustrated as follow L R switch left right of horizontal angle measuring direction HOLD lock horizontal angle measurement result switch vertical angle slope percent OSET set horizontal angle as 0 00 00 XA turn on off directing laser xd V turn on off laser plummet D turn on off background light of LCD Z ENT enter main menu Z ENT ENT save and exit b Illustration Of Symbols On Screen automatic shutdown symbol battery power symbol a special function symbol shows when press X button and disappea
16. pessoa lola ee 0 e TEE l E e ete estore aces trae daesaecseetsanebaeesec etn cea ene sentence tetas 2 Js Product Instruc HO Rioni 3 SLE ee E EE 3 Display AMG Rey ET EE 4 4 Specifications Check And Adiustment 5 PIG Vi EE 5 a EATR T EE E E S E E E E Ee 7 dobermann 8 4 4 Inclination Of Telescope Reticle 10 A Laser Aleniment EE Il 4 6 Perpendicularity Between Line Of Sight And Horizontal Axis C 13 LICEO slide 14 AS Vertical nde x Difference T irsinin aaa 15 4 9 Vertical Index Difference Compensation ss nssoessoesseesssesssesssessserssersseres 16 3 Disassemble the Mate ue ose aise lena 19 OC ICU IL SCC HOM eC Ke 5352s sa sass acs EE 295 Oil AGIUSUING Too EE Z5 UE E NICO rr ae 25 O Ma nDO KEE 26 EEN GE ENEE Zi Fl CO MMOD E ica ZI 7 2 Error Code And Failure Maintenance ccccsecccceessccceeseccesesceceeesceesenees 29 1 Preface The DE Series electronic theodolite uses the incremental grating and absolute encoder system for angle measurement Microcomputer technology is employed to realize measurement calculation display storage and other functions Horizontal or vertical angle and other measurement results can be displayed at the same time There is variety of modes to survey the angle slope etc The DE Series can be widely applied to the class 3 4 triangle survey It can also be used in various engineering surveys such as railway highway bridge water conservan
17. reen blue and black off and then take out the electric brushes 15 Remove 3 cross head screws M2x5 counterclockwise using a cross screwdriver Use an electric iron to weld 4 wires with different colors red green blue and black off and then take out the conducting ring 16 Remove 2 hexagonal screws M3x8 as indicated counterclockwise using a hexagonal screwdriver Pull out the plug of compensator and take it off 22 Operation steps Indicating picture 17 Use a screwdriver cooperated with a blunt to tweak the plate off through the holes as indicated and remove the horizontal axis clamping block 18 Remove 4 cross screws M3x9 as indicated counterclockwise using a cross screwdriver and take off the horizontal axis clamping cover 19 Remove 3 cross screws M3x8 as indicated counterclockwise using a cross screwdriver and tweak the focusing knob to the bottom clockwise 20 Remove 4 screws M3x10 as indicated counterclockwise using screwdriver and take off the telescope and the horizontal axis Note While taking off the horizontal axis be careful with the grating for not being collided or rubbed Do not disassemble the grating and signal receiving circuit board If they are not working send them back to us for repair 23 Operation steps Indicating picture 21 Pull the protective cover as indicated and remove 3 screws M4x12 counterclockwise using a screwdriver 22 Lif
18. rs after another press slope percent b OUT vertical angle over compensated OUT slope over 100 m unit in meters 7 unit of angle 4 Specifications Check And Adjustment 4 1 Plat Vial a Check 1 Place the instrument on a stable Plate Vial device a tripod or calibration table and fix it 2 Parallel the plate vial and the line between two out of three leveling screws Adjust the two screws to keep the bubble in the middle of plate vial 3 Rotate the instrument around the vertical axis and observe the offset of bubble If the bubble remains in the middle no adjustment is necessary Otherwise the following adjustment is required Parallel Leveling Leveling Screw A Screw B Picture A b Adjust 1 Place the instrument on a stable device 2 Rotate the instrument to parallel plate vial and the line connecting two leveling screws A B Adjust screws A and B inside or outside simultaneously to make plate bubble in the middle 3 Rotate the instrument 90 to plumb plate vial and the line between two leveling screws A B Then adjust screw C to make plate bubble in the middle Repeat step 2 and 3 until the bubble remains in the middle in these two directions 4 Rotate the instrument 180 When the bubble is not stop in the middle tweak adjusting screw with a adjusting pin to make plate bubble move half of the offset back 5 Repeat step 2 3 4 until the bubble keeps in the mi
19. ssary Otherwise the following adjustment is required b Adjust 1 Adjust 3 leveling screws to make the laser spot coincide with the intersection point 2 Rotate the instrument 180 and remove the cover of laser plummet Adjust 4 screws to make the laser spot moves half of the offset back Laser 3 Repeat step 1 and 2 until the laser Spot spot coincides with the intersection point in all directions Picture D a c Replace The Laser Tube 1 If you turn on the laser plummet with correct operation and the wire of laser tube is well connected and still can t get laser beam In this case replace the laser tube 2 Remove the cover of laser plummet counterclockwise 3 Remove 4 adjusting screws es Plot counterclockwise and pull the laser Cover collimator out gently 4 Put tweezers into the slots as the picture indicated and tweak the laser collimator off Use an electric iron to weld 3 wires off and then take out the laser tube 5 Install a new laser tube as the picture indicated and make sure 3 wires with different colors red black and blue match Note After replacing laser tube and still can t get laser beam recheck your Adjusting operation and make sure it is not caused Screws by bad welding or broken wire In this case send the instrument back to us Red Black Blue Schematic Position Two Slots of Three Wires with Different Colour Picture D b 4 4 Inclination
20. t up main frame gently along the rabbet at the bottom and be careful not to break the vertical ax1s grating 24 6 Circuit Section Check RR RO 700 750 800 850 900 0 1000 1050 1100 1150 1200 12501300 le gue Fer pn S z Con eea Picture 2 6 1 Adjusting Tools A a mainboard serial cable socket B a USB serial cable C a mainboard Adjusting tools for horizontal axis signal receiver 1 Acomputer with specialized testing software 2 A USB null modem cable 6 2 Adjusting Method Connect the communication port of the instrument with computer as picture 1 indicated and open the software Isolate the grating from outside light and after data acquisition there will be a waveform on the screen The software settings are shown as picture 2 Adjust the grating from CCD_0 to CCD_3 and watch the waveform It is qualified that the shape of wave envelope 1s a parabola the amplitude is under 350mV every waveform is oscillating and there is no interference or a sudden change in the waveform 25 6 2 Mainboard Buzzer Socket Horizontal Axis Signal Receiving Socket Vertical Axis Signal Receiving Socket Power Supply Socket Left Board Socket Right Board Socket Power Supply Socket Laser Alignment Socket Laser Plummet Socket Back 26 7 Failure Maintenance 7 1 Common Failure 1 Horizontal vertical axis stuck or tight Please do not disassemble the instrument by yourself S
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