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ELECTRONIC
THEODOLITE

SERVICE MANUAL

SOUTH SURVEYING & MAPPING INSTRUMENT
CO., LTD.

2009

SOUTH

2009

‐

6

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1

1
2
3
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Summary of Contents for ET-02

Page 1: ...ELECTRONIC THEODOLITE SERVICE MANUAL SOUTH SURVEYING MAPPING INSTRUMENT CO LTD 2009 SOUTH 2009 6 1...

Page 2: ...ts a the encoder disk centre and the horizontal axis centre must be positioned at the same point b the reticle board of the vertical encoder disk must be perpendicular to the horizontal axis C Handgri...

Page 3: ...ng of target point that is on the reticle board is in focus too In addition reticle is required to go through the prism on structure and should go through the center of the object lens after turning K...

Page 4: ...electronic theodolite ET 02 ET 05 and the process comply the following steps The assembly process is the same as the disassembly if there is not any special note Please refer to the related informati...

Page 5: ...ght cover Refer to step 3 take off the LCD plate on the left of right cover Snip the string noted in the red circle in picture Take care do not damage the wire Remove the 6 setscrews fixing the right...

Page 6: ...ws on C points The screws on C are white ones with round head The red dotted line circles indicate that there are 4 black base setscrews with plate head under the disk Do not disassemble these 4 screw...

Page 7: ...connect it with the telescope One hand fix the telescope and the other hand rotate the disk gently and aim at the screw holes between the body and telescope Be sure that the triangle marked on the dis...

Page 8: ...over and then loosen not remove the 2 vertical clamp and tangent fix screws by hexagon wrench the right thumb press the bottom of the vertical clamp rod the left hand drag the vertical clamp and tange...

Page 9: ...remove the 3 lower base cover protection screws then take off the lower base cover Remove the 3 setscrews of the lower base cover by hexangular spanner then the horizontal disk dust proof cover can be...

Page 10: ...e horizontal absolute encoder disk unit Remove the 2 horizontal CCD setscrews then remove the horizontal CCD unit carefully Take off the other horizontal CCD unit in the same way The parts removed sho...

Page 11: ...broken or loss it need to be replaced with a new whole set So instantly nip all balls into a safety container to avoid any accident Step 14 Plate vial Totally loosen the adjusting screw by adjusting...

Page 12: ...SOUTH ET 02 05 ELECTRONIC THEODOLITE SERVICE MANUAL 12 SOUTH SURVEY MAPPING INSTRUMENT CO LTD 12 Gently rotate the optical plummet until it display complete image Then tighten the 2 fix screws...

Page 13: ...ction error Fault 03 rotate too fast in horizontal direction protection error Fault 04 Vertical CCD sensor the same as fault 07 A week signal readjusting signal B encoder disk dirty clean the disk C C...

Page 14: ...eck whether the wire connecting the display and LCD is shed mainboard mainboard display program CPU error renew program or replace main board The Axis Blocked axis sheath part ash or sand invaded Vert...

Page 15: ...with the grinding stick which has appropriate amount of abrasive paste on the surface 8 Grinding finished clean the axis sheath with cleaning solution 9 Mount the balls bearing back and reassemble th...

Page 16: ...e grinding stick with appropriate force Do it carefully In general the rotation could be a few when there is not much deviation 5 Grinding finished clean the abrasive paste with cleaning solution Be a...

Page 17: ...UMENT CO LTD 17 Main board of the Angular Measurement Upper CCD connector Lower CCD Connector Buzzer Connector Tilt Compensator Connector CCD with Short Wires Connector CCD with Long Wires LCD Panel c...

Page 18: ...arrange the steps will not assure the parameter of the instrument will conform to the standard specification Calibration 1 Plate Vial Rotate instrument make plate level parallel with line between two...

Page 19: ...usted As shown in the figure first disassemble the Eyepiece cover and then loosen four screws which fix the base of reticle board aim the crosshairs of collimator and rotate the reticle board lightly...

Page 20: ...own the corresponding grid value on the horizontal crosshairs Then tighten the horizontal clamp Loosen the vertical clamp rotate the telescope and sight at the lower collimator note down the correspon...

Page 21: ...been adjusted and the theodolite is on the collimator Press POWER ON and V to start the instrument When heard the three times beep press L R five times HOLD five times to enter the compensator mode F...

Page 22: ...t it is not necessary to be adjusted If the F value is over 60 we have to calculate and reset coefficient of compensator As shown in the figure F value is 175 which are over 60 Return the theodolite t...

Page 23: ...alculation of K value is correct Otherwise repeat the steps above 7 I angle Vertical Angle Sight the instrument at a certain graduation on vertical crosshairs in horizontal collimator and note down th...

Page 24: ...t the I Angle needs to be readjusted If the I Angle doesn t meet the requirement repeat the above steps for adjustment 8 Optical Plummet Set the instrument on a tripod and place a piece of white paper...

Page 25: ...he four adjusting screws As shown in the figure make the center mark coincides with the intersection on the paper that is to say narrow half of the deviation between the centre and the intersection on...

Page 26: ...ONIC THEODOLITE SERVICE MANUAL 26 SOUTH SURVEY MAPPING INSTRUMENT CO LTD 26 TOOLS CHEMICALS Oscilloscope Multimeter Collimator Screwdrivers Pinchers Allen Keys Pliers Grinding Sticks Cotton Lubricant...

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