DQL-16ZJC Forest Ranging Theodolite Compass

DQL-16ZJC Forest Survey Ranging Transit Compass

Instruction Manual

( Product Implementation Standard: Q/HGY05-2020)

I. Purpose:

DQL-16ZJC The surveying theodolite with rangefinder is suitable for a wide range of measurement tasks in mining operations and forest resource surveys, including azimuth, horizontal angle, vertical angle, elevation difference, and distance. It can also be used in engineering surveying applications such as agricultural water conservancy, land planning, topographic planning, and topographic mapping.

II. Main Technical Parameters:

  Hope Far Mirror: Magnification:   16 times ( Just like )

Effective aperture:   22mm

            Visual distance multiplication constant: 100

Vista distance addition constant: 0

View field Angle:   2 degree 30 ′

Minimum sight distance: 2.5 meters

magnetic Luo Plate: Magnetic needle length: 67mm Dial scale value: 1 degree

Horizontal circle: Dial scale value:   1 degree          Cursor grid value: 5 ′

Vertical circle: Dial scale value:   1 degree           Cursor grid value: 5 ′   Measurement range: ± 50 degree

Water Qualified Device: 20 ′± 5 ′ /2mm

Laser rangefinder: Front distance constant from the center of the compass instrument: 66mm

Range: 1m-60m ^①

Range measurement accuracy: ±( 1cm plus 5 times 10-5  D ) ^② ("D" denotes the measured distance)

Angle measurement accuracy: ±( 0.3 °＋ 0.1 °＋ 0.01*|α| )

(0.1 °is the error caused by temperature, alpha is ± 0~45 °, e.g.: at room temperature 0 degree

The error is ± 0.3, At a very warm temperature 45 The measurement error is ± 0.85 degree )

Unit of measurement: m/ft/in/ft+in

Laser type: 630–670 nm, < 1 mW

Laser class: Class2

Automatic shutdown: 3 Shut down after X minutes of inactivity

Operating temperature: 0-40 degrees Celsius

1. Use a reflector when the lighting is too strong or the surface being measured has poor reflectivity.

2. Measurement errors will increase under adverse conditions, such as excessive ambient light, weak reflectivity of the target surface, or large temperature differences.

III. Instrument Structure:

1 , laser rangefinder; 2 , telescope; 3 , horizontal-axis stop screw; 4 , horizontal-axis fine-adjustment screw; 5 , vertical circle; 6 , magnetic needle stop screw; 7 , compass box; 8 , vertical-axis fine-adjustment screw; 9 , Zeroing button; 10 , horizontal vernier; 11 , horizontal circle; 12 , vertical-axis stop screw; 13 , Anping Institution; 14 , magnetic needle dial; 15 , steering wheel; 16 , magnetic needle; 17 , the circle of vision.

  The instrument consists primarily of six components: a telescope, a magnetic compass assembly, a horizontal circle assembly, a vertical circle assembly, a laser rangefinder, and a leveling mechanism. See the figure. Telescope 2 for 16 It features a reverse-image, internal focusing design with a built-in reticle for aiming and optical ranging. A rangefinder is mounted on the top of the telescope tube for laser distance measurement.

The magnetic compass assembly consists of a magnetic needle and a dial. 14 , steering wheel 15 and magnetic needle 16 It is composed primarily for the measurement of magnetic azimuth.

The horizontal circle assembly consists of a horizontal circle. 11 and horizontal cursor 10 It is composed primarily for the measurement of horizontal angles.

The vertical circle assembly is primarily used for measuring vertical angles.

Anping Institution 13 It features a ball-and-socket design, primarily for mounting on a tripod, and allows for flexible adjustment, enabling quick and convenient leveling of the instrument.

For ease of operation, the instrument is equipped with a horizontal-axis stop screw. 3 And horizontal-axis fine-tuning screw 4 , vertical-axis stop screw 12 And vertical-axis fine-tuning screw 8 , used for precise adjustment in both the horizontal and vertical directions of the instrument.

IV. Instructions for Use:

1. Measurement Preparation:

Securely mount the instrument on the tripod, ensuring that the plumb bob at the tripod’s apex is aligned with the ground datum, and set all adjustable components of the instrument to their mid-position. Then adjust the leveling mechanism to center the bubbles in both spirit levels.

Rotate the telescope’s diopter ring to bring the reticle crosshairs into sharp focus. Then rotate the instrument to align the crosshairs with the target or leveling rod, and finally adjust the focusing knob to obtain a clear image of the target.

2. Azimuth measurement:

After the instrument is leveled, rotate the magnetic needle stop screw counterclockwise. 6 Release the magnetic needle, rotate the instrument to align the vertical wire of the telescope’s reticle with the target, and after the magnetic needle comes to rest, note the magnetic bearing indicated by the north pole of the needle (the end not wrapped with copper wire) on the magnetic compass dial. 14 The degree indicated on the scale is the azimuth of the target, with the magnetic needle’s north pole pointing toward the compass dial. 15 The area on top is the target direction.

 3. Horizontal angle measurement:

After the instrument is leveled, turn the zero-setting knob. 9 Switch to 0 → BACK Rotate the instrument upward; horizontal circle 11 on the “ 0 “Automatic line engraving and horizontal vernier” 10 of the “ 0 “Align the刻线, aim at the target, then turn the zero-setting knob to…” FREE Rotate the instrument upward and use the telescope to sight another target; then directly read the horizontal angle between the two targets from the horizontal circle.

 4. Vertical angle measurement:

After the instrument is leveled, adjust the telescope and, by sighting the target through the horizontal wire of the reticle, the angle can be directly read from the vertical circle.

    5. Distance measurement:

(1) Optical distance measurement

Place the leveling staff at the target, adjust the telescope to obtain a clear view of the staff graduations, and read the scale values enclosed by the upper and lower crosshairs on the staff. Multiply this reading by the stadia constant to determine the distance from the instrument to the staff. During measurement, for easier reading, the horizontal-axis fine-adjustment screw may be turned slightly. 4 , so that one of the horizontal threads aligns with an integer mark on the scale.

(2) Laser distance measurement

To measure the distance from the target to the center of the tripod, use the front-face datum of the laser rangefinder for measurement, and then add the center-offset constant. 66mm , thereby obtaining the actual distance value.

V. Overview of Laser Rangefinders

1 , Measurement key

After selecting the measurement mode, briefly press the measurement button to enter continuous measurement mode.

2. Function key

Press this button to switch between area, volume, single Pythagorean, double Pythagorean ①, double Pythagorean ②, automatic horizontal, and automatic vertical measurement modes.

3. Benchmark/Unit Key

The rangefinder’s default reference is the rear reference. A short press toggles the reference mode (front / tripod center / rear reference), while a long press switches the measurement unit (m / ft / in / ft+in).

* After the machine is restarted, the measurement reference will automatically switch to the default post-measurement reference.

4. Laser icon

5. Display screen

Mode switching displays measurement and calculation data.

6. Historical number keys

Press this key to directly access the historical measurement data; the most recent 20 measurements or calculation results will be displayed in reverse order.

7. Add/Subtract (+/-) key

In single-measurement, area, and volume measurement modes, press “Add” briefly or press “Subtract” for a long press.

8. Mute button

Press this button to turn the buzzer on or off.

9. Power On/Off/Clear/Back Key

Press and hold the power button to turn the device on or off; press briefly to undo the last operation or return.

10. Display screen

      1. Battery Status

2. Single measurement/Continuous measurement

3. Laser On

4. Measurement datum edge (leading edge)

5. Measurement reference edge (tripod

Threaded hole)

6. Measurement datum edge (trailing edge)

7. Measurement mode icon

8. angle

9. View history, retrieve data

10. The first line displays

11. The second line shows that the minimum value is displayed.

Demonstrate

12. The third line displays the maximum value.

Show Rows

13. Main display line, last measurement and calculation

The calculation results show

VI. Measurement Modes of Laser Rangefinders

  ① Single measurement

Laser rangefinders are typically used as auxiliary distance-measuring devices; upon power-up, they default to single-shot measurement mode.      , after selecting the measurement location, tap the measurement button.      , the current measurement data is displayed on the main display line.                                   

② Automatic Level Measurement

       As shown in Figure 2, select the automatic horizontal measurement mode by pressing , then, following the prompts on the flashing edge, press the measurement key to obtain the hypotenuse distance, vertical distance, and horizontal distance, which are displayed on the screen from top to bottom in that order.

Automatic Vertical Measurement

Note: When using the reticle crosshairs in the telescope tube to aim at a target and measure the vertical angle, read the vertical circle reading; when using a distance meter to measure the slant range to the target and convert it to the horizontal distance, use the angle displayed on the distance meter.

VII. Instrument Adjustment and Maintenance

      1、 The varying magnetic dip angles across the globe cause magnetic needles to tilt, necessitating the addition of a balancing wire—made of non-magnetic material—to the needle’s north or south pole to keep it level. By adjusting the number of turns or the position of the balancing wire, the needle can be kept horizontal regardless of the region.

2. The instrument should be protected as much as possible from impacts and contamination, and shielded from prolonged exposure to high temperatures and rainwater. This is to prevent air leakage due to water damage and degradation of the mirror coating, which could compromise instrument performance.   and accuracy;

3. The instrument has been calibrated before shipment; do not disassemble it, drop it, or modify it without authorization, as this may lead to inaccurate measurement results. Perform regular inspections of the instrument. In particular, after the instrument has been subjected to abnormal operating conditions, ensure that the optical lenses are kept clean and that the instrument’s structural integrity is maintained. If the instrument has been transported over long distances with impacts or severe vibrations, or if it has remained unused for an extended period, prior to use you must adjust the leveling mechanism to align the bubble level, and ensure that the rangefinder and telescope are properly aligned in a common direction.

4. After use, all adjustment mechanisms shall be returned to their neutral positions and securely locked.

5. When not in use, the magnetic compass needle should be locked to prevent wear on the agate bearing, which could shorten its service life.

6. The surfaces of optical components in telescopes in use shall be kept free from contamination; after the instrument has been repaired or disassembled and reassembled, it must be recalibrated before it can be used.

7. The instrument should be stored in a well-ventilated, dry location, away from magnetic materials, to prevent mold growth on optical components and rusting of metal parts.

VIII. Safety Instructions and Warnings ：

To ensure the safe use of the laser rangefinder, please be sure to read all of the following instructions carefully.

1 This product is classified as a Class 2 laser. When using it, do not look directly into the laser beam or aim the beam at other people, and do not view the laser beam through optical lenses, as this may cause eye damage. (The laser’s total continuous output power is less than 1.0 milliwatt; although the beam power is within safe limits and typically poses no immediate danger, prolonged exposure may still result in potential harm.)

2 This product complies with stringent standards and regulations; however, the possibility of interference with other equipment cannot be entirely ruled out, and it may cause discomfort to humans and animals. When using this product, keep it away from magnetic materials and magnetic environments.

3 Do not use this product in explosive or corrosive environments.

4 Do not use this product near medical equipment.

5 Do not use this product on board the aircraft.

IX. Instrument Accessories

1 host machine

1 user manual

Certificate of Conformity 1 copy

Tripod – 1 set

Harbin Optical Instruments Factory Co., Ltd.

HARBIN OPTICAL INSTRUMENT FACTORY LTD.

ground   Address: Jingwei Third Road, Daoli District, Harbin City 32 Number

Post   Editor: 150010

Electricity   Words: 400-030-0319         0451-84286338      

network   Address: www.hrboptical.com           

E-mail： hopt@hopt.cn