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e-survey ET2A Maintenance Manual

Electronic digital theodolite
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ET2A
Electronic Digital Theodolite
MAINTENANCE GUIDE
Shanghai eSurvey GNSS Co., Ltd.

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Summary of Contents for e-survey ET2A

  • Page 1 ET2A Electronic Digital Theodolite MAINTENANCE GUIDE Shanghai eSurvey GNSS Co., Ltd.
  • Page 3 SHANGHAI ESURVEY GNSS CO., LTD. Copyright © Shanghai eSurvey GNSS Co., Ltd. 2022. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Shanghai eSurvey GNSS Co., Ltd. Trademarks and Permissions and other eSurvey trademarks are trademarks of Shanghai eSurvey GNSS Co., Ltd.
  • Page 4 SHANGHAI ESURVEY GNSS CO., LTD.

  • Page 5: Table Of Contents

    Caution ......................2 1.1.2 Warning ......................3 1.1.3 Danger......................3 Disclaimer ......................3 ET2A at a Glance ......................4 Important Parts ...................... 4 Operation Panel ..................... 5 Disassembling ......................6 Disassemble the Left Cover .................. 6 Disassemble the Mainboard .................. 8 Disassemble the Vertical Circle ................
  • Page 6 SHANGHAI ESURVEY GNSS CO., LTD. Serious Error in the Vertical Angle ............... 27 The Horizontal Tangent Screw is Broken ............28 The Vertical Tangent Screw is Broken ..............28 6.10 Display Error ......................28...

  • Page 7: Before You Start

    SHANGHAI ESURVEY GNSS CO., LTD. Before You Start Before you start, please carefully read this part. Precautions for Safe Operation Precautions in this part are intended to minimize the risk of personal injury and/or damage to property, and all indicate ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Precautions can be divided into the following types according to the degree of loss or injury in case of negligence or omission:...

  • Page 8: 1.1.1 Caution

    SHANGHAI ESURVEY GNSS CO., LTD. 1.1.1 Caution The following outlines the cautions that you must avoid when operating the ET2A: For optimum usage, please regularly check and adjust the instrument (at least every three-month) especially after storage for a long time and transportation.

  • Page 9: 1.1.2 Warning

    Disclaimer You are expected to follow all operating instructions and regularly check the performance of this instrument. It is your responsibility to exercise common sense while using the ET2A, and keep it operating safely. We assume no responsibility for any damage and loss of profits in the following conditions: ...

  • Page 10: Et2A At A Glance

    SHANGHAI ESURVEY GNSS CO., LTD. ET2A at a Glance Important Parts The important parts of ET2A is as follows:...

  • Page 11: Operation Panel

    SHANGHAI ESURVEY GNSS CO., LTD. Operation Panel The operation panel is as follows: Keyboard Keys Meaning 0SET Set the horizontal angle to 0. Set the horizontal angle right or left. HOLD Hold the horizontal angle. Set the display unit of the vertical angle (° or %) by pressing 1 second and turn on or off the laser pointer by pressing 3 seconds.

  • Page 12: Disassembling

    SHANGHAI ESURVEY GNSS CO., LTD. Disassembling When disassembling the instrument, please carefully protect each part. It is forbidden to disassembling parts not mentioned here. Disassemble the Left Cover To disassemble the left cover, do the following: 1. Remove four cross recessed pan head screws (M2.5X10) screws and one cross recessed pan head screw (M2.5X20) that fix the left cover: 2.
  • Page 13 SHANGHAI ESURVEY GNSS CO., LTD. After disassembling the left cover, the structure is as follows:...

  • Page 14: Disassemble The Mainboard

    SHANGHAI ESURVEY GNSS CO., LTD. Disassemble the Mainboard The structure of the mainboard is as follows: Connector Definition Connector Definition Vertical lower Horizontal near-end connector connector Horizontal far-end Laser plummet (lower) connector connector Laser plummet (upper) Display connector connector Display connector Compensator connector Vertical upper end CCD POWER...

  • Page 15: Disassemble The Vertical Circle

    SHANGHAI ESURVEY GNSS CO., LTD. To disassemble the mainboard, do the following: 1. Use tweezers to remove the connectors J1, J2, J3, J4, J5, J8 and J9 on the front from the mainboard. It is suggested to make a mark for different connection before removing the connections.

  • Page 16: Disassemble The Right Cover

    SHANGHAI ESURVEY GNSS CO., LTD. 3. Remove three cross recessed pan head screws (M3.5X7.5) that fix the vertical circle, and remove the vertical circle: Disassemble the Right Cover To disassemble the right cover, do the following: 1. Remove four 90° countersunk flat head screws M2.5X7 that fix the right cover: 2.
  • Page 17 SHANGHAI ESURVEY GNSS CO., LTD. After disassembling the right cover, the structure is as follows:...

  • Page 18: Disassemble The Vertical Tangent Screw

    SHANGHAI ESURVEY GNSS CO., LTD. Disassemble the Vertical Tangent Screw To disassemble the vertical tangent screw, do the following: 1. Unscrew the shorter mandril seat of the vertical tangent screw, and remove the shorter mandril seat. 2. Loosen the two hexagon socket set screws (M2X3). There is no need to remove them.

  • Page 19: Disassemble The Display

    SHANGHAI ESURVEY GNSS CO., LTD. Disassemble the Display The structure of the display is as follows: To disassemble the display, do the following: 1. Remove 4 slotted cheese head screws (M2X6) that fix the display. Be careful. The buzzer exists on back of the display. 2.

  • Page 20: Disassemble The Plate Level

    SHANGHAI ESURVEY GNSS CO., LTD. 2. Remove the LCD module: Disassemble the Plate Level To disassemble the plate level, do the following: 1. Loosen the correction screw of the bubble with the adjusting pin, and remove it. 2. Unscrew the slotted fixing screw of plate level with slotted screwdriver, take down the slotted fixing screw.

  • Page 21: Disassemble The Horizontal Tangent Screw

    SHANGHAI ESURVEY GNSS CO., LTD. Disassemble the Horizontal Tangent Screw To disassemble the horizontal tangent screw, do the following: 1. Unscrew the shorter mandril seat of the horizontal tangent screw, and remove the shorter mandril seat: 2. Loosen the two hexagon socket set screws (M2X3): There is no need to remove it.

  • Page 22: Check And Adjustment

    SHANGHAI ESURVEY GNSS CO., LTD. Check and Adjustment Check and Adjust the Plate Level To check and adjust the plate level, do the following: 1. Level the plate level for precise leveling of the instrument. 2. Rotate the instrument 180° (200 gon), and observe if the bubble moves from the center: o If it does, proceed to step 3 - 5.

  • Page 23: Check And Adjust The Optical Sight

    SHANGHAI ESURVEY GNSS CO., LTD. Check and Adjust the Optical Sight To check and adjust the optical sight, do the following: 1. Fix the instrument on the calibration stand, and label a cross mark afar. 2. Aim the telescope at this mark, and check if the optical sight collimates this mark: o If it does, no adjustment is required.

  • Page 24: Check And Adjust The Vertical Line Of The Reticle

    SHANGHAI ESURVEY GNSS CO., LTD. 5. Making the laser spot move half distance towards the center of the cross target by loosening or tightening the four hexagon socket set screws: When loosening one screw, please tighten the opposite screw. 6. Repeat step 5 until the laser spot entirely coincides with the cross target when rotating the instrument in any direction.

  • Page 25: Check And Adjust The Line-Of-Sight Error Or Collimation Error

    SHANGHAI ESURVEY GNSS CO., LTD. 4. Turn the eyepiece cover of the reticle counterclockwise, and remove the cover to expose the cross recessed pan head screws-fixing screws (M2.5X8) that fix the eyepiece: 5. Use a cross screwdriver to slightly loosen the four M2.5X8 screws that fix the eyepiece.

  • Page 26: Check And Adjust The Vertical Index Error

    SHANGHAI ESURVEY GNSS CO., LTD. 9. Rotate the instrument in the right position, and make the reading is HA2' = HA2 + C. 10. Remove the eyepiece cover to adjust the two horizontal adjusting screws until the reticle coincides with the reticle of collimator or the target: 11.

  • Page 27: Check And Adjust The Linearity Of The Compensator

    SHANGHAI ESURVEY GNSS CO., LTD. 8. Press to power on the instrument, and long press R/L when the following display shows: The following result shows: 9. Aim at the reticle of collimator or the obvious target at a distance, and press 0SET: 10.
  • Page 28 SHANGHAI ESURVEY GNSS CO., LTD. 3. To precisely level the instrument up, make the plate level parallel to the connecting line of two foot screws, and turn the third foot screw. 4. To power on the instrument, press for 3 seconds, and make sure the compensator is turned on (Character shows).

  • Page 29: Check And Adjust The Coinciding Of The Laser Spot And Target Center

    SHANGHAI ESURVEY GNSS CO., LTD. Check and Adjust the Coinciding of the Laser Spot and Target Center The laser spot coincides with the target center when the reticle center of the telescope coincides with the target center. If not, adjustment is required. To check and adjust the coinciding of the laser spot and target center, do the following: 1.

  • Page 30: Troubleshooting

    SHANGHAI ESURVEY GNSS CO., LTD. Troubleshooting This part only lists the common problems you may encounter. If you encounter other problems, please contact us. Failed to Power on the Instrument Bad battery or out of battery Replace a new and fully charged battery. The electrode is damaged ...

  • Page 31: Unstable Horizontal Angle

    SHANGHAI ESURVEY GNSS CO., LTD. Incorrect setting The automatic power-off function is activated, which is used to prevent unnecessary power consumption. With it activated, the instrument will automatically power off after 30 minutes if no action is carried out. → R/L to enter configuration mode: 1.

  • Page 32: Character Tilt Shows

    SHANGHAI ESURVEY GNSS CO., LTD. Incorrect setting Restore to the factory settings. Others Contact us. Character TILT Shows The working range of the compensator is at ± 3' (± 0.05.56 gon). If the tilt angle exceeds the work range, the vertical angle will show TILT on the display. The plate level is no levelled Level the plate level.
  • Page 33 SHANGHAI ESURVEY GNSS CO., LTD. Short circuit of the mainboard The mainboard is damaged or burnt. 1. Disassemble the Mainboard 2. Replace the mainboard. Incorrect setting Restore to the factory settings. Others Contact us. Serious Error in the Vertical Angle Incorrect setting The setting of zenith is incorrect.
  • Page 34 SHANGHAI ESURVEY GNSS CO., LTD. The compensator is on The compensator normally remains switched on. → R/L to enter configuration mode: 1. Press 2. Press 0SET to turn to the following page: 3. To switch off the compensator, press R/L to change the value to OFF. 4.
  • Page 35 SHANGHAI ESURVEY GNSS CO., LTD. The LCD module is damaged 1. Disassemble the Display 2. Disassemble the LCD Module 3. Replace the LCD module.
  • Page 38 To be the leading provider of high-precision professional, solution & service in the global geospatial industry Shanghai eSurvey GNSS Co., Ltd. Address: Building 4, No.651 Wanfang Rd, Pujiang Town, Minhang District, Shanghai, China E-mail: Sales: info@esurvey-gnss.com Support: support@esurvey-gnss.com Hotline: +86 400-999-8088 Website: https://esurvey-gnss.com/...

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