Topcon DL-502, DL-503 Instruction Manual

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INSTRUCTION MANUAL

DIGITAL LEVEL DL-500 SERIES

DL-502 DL-503

FC11808-A022-02

SURVEYING INSTRUMENTS

DIGITAL LEVEL

DL-502 DL-503

DL-500 SERIES

INSTRUCTION MANUAL

Thank you for selecting the Digital Level DL-502/503.

• Please read this operator's manual carefully before using this product.

• Verify that all equipment is included. See "20.1 Standard Equipment".

• DL-502/503 has a function to output data saved in DL-502/503 to a connected computer. Commands operations from a computer can also be performed. For details, refer to the “Output Formats and Command Explanations (DL Edition)” manual and ask your local dealer.

• The specifications and general appearance of the instrument are subject to change without prior notice and without obligation by TOPCON Corporation and may differ from those appearing in this manual.

• The content of this manual is subject to change without notice.

• Some of the diagrams in this manual may be simplified for easier understanding.

CONTENTS

Read This First

Introduction

Preliminaries

Surveying

Managing Recorded Data

1. Precautions for Safe Operation ..........................4

2. Precautions.........................................................7

3. DL Functions ......................................................9

3.1 Parts of the Instrument and Operation .......9

3.2 Display......................................................11

3.3 Operating Keys.........................................15

3.4 Operating Modes ......................................16

4. Installing and Removing the Battery.................18

5. Setting Up the Instrument.................................19

6. Focusing and Sighting ......................................20

7. Basic Operation ................................................22

7.1 Reading the Staff......................................22

7.2 Measuring in Status Mode........................25

7.3 Measuring using Wave-and-Read ............26

8. Setting Up Data Storage...................................29

8.1 JOB Setting ..............................................29

8.2 Record Conditions ....................................31

8.3 Double-run Measurement.........................32

8.4 Flow of Recording Data ............................32

9. Measuring Height Difference ............................36

10. Measuring Elevation .........................................39

11. Setting Out Height Difference, Distance, and

Elevation...........................................................42

11.1 Setting Out Height Difference...................42

11.2 Setting Out Distance.................................44

11.3 Setting Out Elevation................................45

12. Other Measurement Functions .........................48

12.1 Measuring Horizontal Angle .....................48

12.2 Using the Instrument as a Standard

Level .........................................................48

13. Displaying Recorded Data ................................49

13.1 Data Check and Edit.................................49

Managing Recorded Data

Other Procedures

Specifications Regulations

13.2Number of Recorded Points............................50

14. JOB Delete .......................................................51

15. Sending Recorded Data ...................................53

15.1 Connecting to a Computer or Data

Collector ...................................................53

15.2 Data Output ..............................................54

16. Changing the Settings ......................................56

16.1 Measuring Mode.......................................56

16.2 Fractional / Decimal representation of

Height Unit................................................57

16.3 Communication Parameters .....................58

16.4 Auto Power-Off .........................................58

16.5 Unit of Measurement ................................59

17. Warnings and Error Messages .........................60

18. Charging the Battery.........................................63

19. Checks and Adjustments..................................65

19.1 Adjusting the Circular Level......................65

19.2 Adjusting the Reticle.................................66

20. Equipment and Accessories .............................72

20.1 Standard Equipment.................................72

20.2 Optional Accessory...................................73

20.3 Staffs ........................................................74

21. Specifications ...................................................76

22. Regulations.......................................................80

1. Precautions for Safe Operation

For the safe use of the product and prevention of injury to operators and other persons as well as prevention of property damage, items which should be observed are indicated in this operator's manual by WARNING and CAUTION indications. The definitions of the indications are listed below. Be sure you understand them before reading the manual's main text.

Definitions of Indications

Read This First

Ignoring this indication and making an operation

WARNING

CAUTION

General

Warning

• Do not use voltage other than the specified power supply voltage. Fire or electrical shock could result.

• Do not use the unit in areas exposed to high amounts of dust or ash, in areas where there is inadequate ventilation, or near combustible materials. An explosion could occur.

• Do not perform disassembly or rebuilding. Fire, electric shock or burns could result.

• Never look at the sun through the telescope. Loss of eyesight could result.

• Do not look at reflected sunlight from a prism or other reflecting object through the telescope. Loss of eyesight could result.

Caution

• Do not use the carrying case as a footstool. The case is slippery and unstable so a person could slip and fall off it.

• Do not place the instrument in a case with a damaged catch, belt or handle. The case or instrument could be dropped and cause injury.

error could possibly result in death or serious injury to the operator. Ignoring this indication and making an operation error could possibly result in minor injury or property damage.

Staff

Warning

• Do not use under thunderous weather conditions. This unit is conductive and if struck by lightning, death or injury could result.

• Handle with care when using near high voltage cables or transformers. This unit is conductive and contact could result in electric shock.

Tripod

Caution

• When mounting the instrument to the tripod, tighten the centering screw securely. Failure to tighten the screw properly could result in the instrument falling off the tripod, causing injury.

• Tighten securely the leg fixing screws of the tripod on which the instrument is mounted. Failure to tighten the screws could result in the tripod collapsing, causing injury.

• Do not carry the tripod with the tripod shoes pointed at other persons. A person could be injured if struck by the tripod shoes.

• Keep hands and feet away from the tripod shoes when fixing the tripod in the ground. A hand or foot stab wound could result.

• Tighten the leg fixing screws securely before carrying the tripod. Failure to tighten the screws could lead to the tripod legs extending, causing injury.

Power Supply

Warning

• Use only the specified battery charger to recharge batteries. Other chargers may be of different voltage rating or polarity, causing sparking which could lead to fire or burns.

• Do not place articles such as clothing on the battery charger while charging batteries. Sparks could be induced, leading to fire.

• Do not use damaged power cords, plugs or loose outlets. Fire or electric shock could result.

• Do not use batteries or the battery charger if wet. Resultant shorting could lead to fire or burns.

Read This First

• To prevent shorting of the battery in storage, apply insulating tape or equivalent to the terminals. Otherwise shorting could occur resulting in fire or burns.

• Do not heat or throw batteries into fire. An explosion could occur, resulting in injury.

• Do not connect or disconnect power supply plugs with wet hands. Electric shock could result.

Caution

• Do not touch liquid leaking from batteries. Harmful chemicals could

Read This First

cause burns or blisters

2. Precautions

Using the Instrument

• The DL-502/503 is a precision instrument. Avoid severe shocks or vibration.

• Be careful when removing the instrument from its case.

• Do not place the DL-502/503 directly on the ground.

• When the operator leaves the DL-502/503, the vinyl cover should be placed on the instrument.

• Never carry the DL-502/503 on the tripod to another site.

• Always turn the instrument off and remove the battery before storing the instrument in its case.

• When the instrument is placed in the carrying case, see "20.1 Standard Equipment".

• Always wipe off moisture and dirt adhering to the instrument during survey work. Moisture or dirt on the lens may result in incorrect readings.

• Consult your local dealer before using the instrument under special conditions such as long periods of continuous use or high levels of humidity. In general, special conditions are treated as being outside the scope of the product warranty.

Maintenance

• Always clean the instrument before returning it to the case. The lens requires special care. Dust it off with the lens brush first, to remove tiny particles. Then, after providing a little condensation by breathing on the lens, wipe it with the supplied cleaning cloth or lens tissue.

• If the display is dirty, carefully wipe it with a soft, dry cloth. To clean other parts of the instrument or the carrying case, lightly moisten a a soft cloth in a mild detergent solution. Wring out excess water until the cloth is slightly damp, then carefully wipe the surface of the unit. Do not use any organic solvents or alkaline cleaning solutions.

• Store the instrument and accessories in a dry room where the temperature remains fairly constant.

• If any trouble is found with the screws or optical parts (e.g. lens), contact your local dealer.

Read This First

• Always close the case when empty to protect the interior from humidity and dust.

• Regular checking and adjustment is recommended to maintain instrument precision.

Exceptions from responsibility

• The user of this product is expected to follow all operating instructions and make periodic checks (hardware only) of the product’s performance.

• The manufacturer, or its representatives, assumes no responsibility

Read This First

for results of faulty or intentional usage or misuse including any direct, indirect, consequential damage, or loss of profits.

• The manufacturer, or its representatives, assumes no responsibility for consequential damage, or loss of profits due to any natural disaster, (earthquake, storms, floods etc.), fire, accident, or an act of a third party and/or usage under unusual conditions.

• The manufacturer, or its representatives, assumes no responsibility for any damage (change of data, loss of data, loss of profits, an interruption of business etc.) caused by use of the product or an unusable product.

• The manufacturer, or its representatives, assumes no responsibility for any damage, and loss of profits caused by usage different to that explained in the operator’s manual.

• The manufacturer, or its representatives, assumes no responsibility for damage caused by incorrect operation, or action resulting from connecting to other products.

3. DL Functions

• Except where stated, screens and illustrations appearing in this manual are of DL-502/503.

• In principle, screens used in procedures are based on the factory setting.

Important:

3.1 Parts of the Instrument and Operation

Introduction

Handle Bubble mirror When the instrument is placed high up and cannot be viewed from above, you can use the mirror to check the position of the bubble in the tube. Circular level Objective lens Focusing knob Use this knob to focus on the staff.

Introduction

Measure

9101112131415

161718

Measure key (appears as in this manual) Starts measurement. (See "3.3 Operating Keys".) Horizontal fine motion knobs (both sides) Use these knobs to finely adjust the instrument's horizontal position. Data output connector You can connect a data collector or computer to this connector. Leveling foot screw Base plate Horizontal circle positioning ring You can rotate the horizontal scale while the instrument is fixed in position. Use to align benchmarks with '0', etc. Horizontal circle Reticle adjusting screw and screw cover Use this screw to mechanically adjust the reticle. Battery cover Eyepiece Adjust the reticle focus to suit your eyesight. Keyboard (See "3.3 Operating Keys".) Display (See "3.2 Display".) Gunsight Use for coarse adjustment of the orientation of the instrument.

3.2 Display

Version number Currently selected JOB

Measurement

Battery level

conditions

indicator

Mode indicator

Attribute•Measure-

Point number

ment step

Measurement values and other data

The display includes the following marks which indicate the operating status and current mode, and help the operator to keep track of the measurement procedure.

• Point number display

The next point number to be recorded is displayed.

• Mode display

The displayed mark shows the current mode.

: Status mode or Measurement mode : Menu mode : JOB setting mode : Record setting mode : Height difference measurement mode : Elevation measurement mode : Setting out mode : Configuration mode : Data review menu

Introduction

• Attribute•Measurement step display

Displays the backsight and foresight (in Height difference, Setting out, or Measuring elevation modes).

: Backsight

: Foresight Displays the attribute of the recorded measurement value (Height difference measurement mode, Elevation measurement mode).

: Backsight point

: Foresight point

: Intermediate sight

: Fixed point

:Off Displays the measurement step (when Adjustment is selected in the Configuration mode). At position A

: Take a reading on staff a.

: Take a reading on staff b.

Introduction

: Take a reading on staff a with the tripod turned 180°.

: Take a reading on staff b with the tripod turned 180°. At position B

: Take a reading on staff a.

: Take a reading on staff b.

: Take a reading on staff a with the tripod turned 180°.

: Take a reading on staff b with the tripod turned 180°. Displays the page number of the active menu (when the Menu mode or Configuration mode is selected).

:First page

: Second page

• Measuring mode (not displayed on menu screens)

Displays the currently selected measuring mode.

: Single measurement

: Average measurement

: Wave-and-Read measurement

: Repeat measurement

: Tracking measurement

• Battery level (not displayed on menu screens)

Displays the current power level of the battery.

: Level 3: Full power.

: Level 2: Plenty of power remains.

: Level 1: Half or less power remains.

: Level 0: Little power remains. Charge the battery.

: Low: No power remains (A beep tone sounds and the

battery symbol blinks.) Charge the battery. Operation cannot be performed. After a short time the instrument automatically powers off.

• Measurements

The following symbols are displayed.

: Staff reading (height)

: Horizontal distance to staff

: Height difference

:Elevation

The fractional/decimal display format for measurement value, calculation value and input value depends on the settings in measuring mode and fractional/decimal representation of height units. (See "16. Changing the Settings".)

• When the fractional/decimal display format is set to "0.0001m" and the unit of measurement is "m", the display is as follows:

When measuring mode is "Single", "Average" or "Repeat" Height: Up to 4 decimals Distance: Up to 2 decimals

When measuring mode is "Tracking" Height: Up to 3 decimals Distance: Up to 1 decimal

Introduction

• When the fractional/decimal display format is set to "0.001m" and the unit of measurement is "m", the display is as follows:

When measuring mode is "Single", "Average" or "Repeat" Height: Up to 3 decimals Distance: Up to 2 decimals

When measuring mode is "Tracking" Height: Up to 2 decimals Distance: Up to 1 decimal

• When the fractional/decimal display format is set to "0.001ft" and the unit of measurement is "ft", data is displayed as follows:

When measuring mode is "Single", "Average" or "Repeat" Height: Up to 3 decimals Distance: Up to 1 decimal When measuring mode is "Tracking" Height: Up to 2 decimals Distance: 0 decimal

• When the fractional/decimal display format is set to "0.01ft" and the unit of measurement is "ft", data is displayed as follows:

Introduction

When measuring mode is "Single", "Average" or "Repeat" Height: Up to 2 decimals Distance: Up to 1 decimal When measuring mode is "Tracking" Height: Up to 1 decimal Distance: 0 decimal

• When the fractional/decimal display format is set to "1/8" and the unit of measurement is "inch", the display is as follows:

When measuring mode is "Single", "Average" or "Repeat" Height: **-**-*/

Distance: **-**

When measuring mode is "Tracking" Height: **-**-*/

Distance: **

3.3 Operating Keys

• The fractional/decimal display format for distance measurements depends on the setting in measuring mode only.

Note:

Measure

Learn main key operations here.

• Power ON/OFF

: Power the instrument ON

(hold) + : Power the instrument OFF

• Light up the display

: Switch the display backlight ON / OFF

• Measurement start / stop

: Start measurement

/ : Stop measurement (in repeat, average or tracking

mode)

: Cancel measurement

• Select / cancel (return to former procedure) menus and options

/ : Scroll to next position (JOB selection, item selection,

etc.)

: Accept the option : Enter Menu mode : Return to former procedure or to Status mode

• Value input / cancel

: Advance the numeral

Toggle the +/- sign

: Change the position of the inverted cursor : Accept the input value

Introduction

3.4 Operating Modes

The DL has a number of functional modes. This section shows the screens that can be displayed in each mode.

: Key operation for selecting each menu : Key operation for returning to previous screen

[Instrument information mode]

ESC

[Status mode]

[Screen showing the number of points that can be recorded is displayed]

[Menu mode]

(Page 1)

Introduction

[At completion of a

Measure

measurement]

[Measurement mode]

[Job setting mode]

Select

ESC

[Record setting mode]

ESC

[Menu of selected function is displayed]

Select

[Menu of selected function is displayed]

(Page 2)

Select

A B

ESC

[Height difference measurement mode]

ESC

Select

[Menu of selected function is displayed]

Select

[Menu of selected function is displayed]

[Elevation measurement mode]

[Setting out .....]

[Config. mode]

(Page 1)

(Page 2)

A B

Introduction

4. Installing and Removing the Battery

Procedure

• Always turn off the power before removing the battery from the instrument. If the battery is removed when the power is still on, stored data may be lost.

Important:

Install a fully-charged battery (see "18. Charging the Battery").

Preliminaries

5. Setting Up the Instrument

Procedure

1 Set up the tripod.

Spread the tripod legs about the same distance apart so that the tripod head is approximately level. Tread the tripod shoes firmly into the ground.

2 Mount the instrument on the tripod.

Hold the instrument on the tripod head and tighten the centering screw.

3 Level the instrument.

Spherical head tripod: Loosen the centering screw and slide the

instrument across the tripod head until the bubble is centered in the circular level. Tighten the centering screw.

Flat head tripod: Extend or push in the tripod legs until the

bubble is centered in the circular level. When the bubble is more or less centered, turn the leveling foot screws until the bubble is exactly centered in the circle. When you turn a screw clockwise, raising the instrument, the bubble will move toward the position of that screw.

Preliminaries

6. Focusing and Sighting

Procedure

• If deviation occurs at step 5, errors will occur when taking measurements. Always make sure the instrument is correctly focused.

Important:

• Before using the instrument

Turn the eyepiece to adjust the eyepiece image.

1 Using the gunsight, aim the objective lens toward the staff.

2 Gradually turn the eyepiece outward, stopping just before the

reticle cross-lines become blurred.

3 Turn the horizontal fine motion knobs until the staff is nearly

centered in the field of view, then turn the focusing knob to focus on the staff.

4 Looking through the telescope, shift your eyes slightly up and down

and to each side.

Preliminaries

5 If the staff and reticle show no deviation, the instrument is ready for

use. If the staff and reticle deviate, return to step 2.

• Focusing when taking measurements

Procedure

• If the staff barcodes are out of focus, they will not be readable and measurements cannot be taken. Make sure they are correctly focused.

Important:

1 Using the gunsight, aim the objective lens toward the staff.

2 Turn the horizontal fine motion knobs until the staff is nearly

centered in the field of view, then turn the focusing knob to focus on the staff.

Preliminaries

7. Basic Operation

• Set up the staff in an area free of obstacles. Avoid placing the staff next to mirror-like surfaces. The effect of

strong light could make measurement impossible.

• Support the staff so that it is perpendicular, checking the circular bubble scope on the staff. If the staff is tilting, height and distance measurements will be incorrect.

• If the surface is catching the light, turn it just enough to stop the reflection.

• Make sure shadows are not cast on the staff as this could make measurement impossible.

• When holding the staff during measurement, make sure your hand does not cover the RAB code.

• If dark locations make measurement difficult, shine a flashlight on the staff. Stand at a distance so that the beam shines evenly over the length of the staff.

Important:

7.1 Reading the Staff

Simply focus on the RAB* code for an automatic reading of the staff. The following explains how to read the RAB code of the staff. * : RAB code (Random Bi-directional code) is a coded staff

used with DL-500 line of digital levels.

Surveying

(Continued on next page)

(Continued from previous page)

• If waterdrops or dirt adhere to the barcode, measurement may be impossible. Wipe the staff clean with a soft cloth.

• Clean the staff if grit or dirt gets stuck between the sections. If the staff is dirty, measurements will not be very accurate.

• Avoid scratching or soiling the barcode surface as this could make measurement impossible. Store and carry the staff inside its case.

• If the BGS series staff is used for leveling, and the height difference and temperature difference are much larger than normal, temperature variations may cause the staff to expand or contract and cause differences in relative height measurements. DL-502/503 reads in measurements up to 0.1mm and minor deviations in the accuracy of the staff will adversely affect accuracy. To obtain high accuracy measurements, it is important to perform temperature corrections for the staff. (See the Note below for details.)

Procedure

• Setting up the staff

1 Connect the staffs correctly by making sure the numbers on the

numeric scale side of the staffs run in unbroken order.

2 Set the foot plate on the ground so that the staff will not sink.

3 Keeping an eye on the circular bubble scope on the staff, set the

staff in the foot plate so that it stands up straight.

4 Turn the barcode scale toward the instrument.

Surveying

• Measuring the height from a ceiling

• Not possible with Wave-and-Read function. Attempting such measurement with the Wave-and-Read function will result in an error.

Important:

Formula for correcting expansion and contraction of the staff due to temperature changes

C={C0+(T-T0)x }x h

C: Staff correction value

C0: Scale factor T: Measured temperature during observation (average temperature during measurement of known site, intermediate site, new site)

0: Reference temperature of 20 C

: Line expansion coefficient

(BGS series : 20x10

-6

1/ C)

h: Height difference

ΔαΔΔ°α°

Note:

Surveying

7.2 Measuring in Status Mode

• During measurement, if direct sunlight or strong light enters the eyepiece and measurement cannot be performed, "Measurement error" or "Too bright" is displayed (see "17. Warnings and Error Messages"). Shield the eyepiece from the light source using your body or cover the eyepiece with your hand and resume measurement.

• If the DL-502/503 is subjected to shocks or vibration during use, measurement may be impossible. Resume measurement during more stable conditions.

Important:

Procedure

Measure

In status mode you can sight point A, take the staff reading (Rh), and measure the horizontal distance (Hd) to the staff.

The procedure below is for taking single measurements. For repeat measurements, see the notes.

1 Turn the power switch on. 2 Focus on the staff and press .

Operation starts and the display blinks while measurements are being taken. When measurement is completed, the staff readings (Rh) and horizontal distance (Hd) are displayed.

Surveying

7.3 Measuring using Wave-and-Read

• In Repeat, Average, or Tracking mode: Step 2: Values are renewed at each measurement.

Press or to stop the reading.

Press to cancel the reading.

Measure

Note:

Wave staff back and forth

The Wave-and-Read function reduces measurement error due to the staff not being vertical (i.e. tilting). It also allows measurement using a staff not equipped with a bubble scope. Wave-and-Read can be used to take the staff reading (Rh), and measure the horizontal distance (Hd) to the staff.

Surveying

The forward and backward movement with respect to vertical position

Vertical

No good No good

Procedure

A should be equal and not in excess of 5 to 10°.

1 Turn the power switch on. 2 Set measuring mode to “Waving”.

(see "16.1 Measuring Mode")

3 Focus on the staff. 4 Wave the staff backwards and

forwards (5 to 10°) through the vertical position. Waving speed should be equivalent to 3 passings of the staff through the vertical position in approximately 3 seconds.

Surveying

5 Press to start measurement.

Measure

• Measurement cannot be performed when the staff is waved too fast.

• Measurement cannot be performed when the staff is waved from side to side (left to right). "Measurement error" is displayed (see "17. Warnings and Error Messages").

Important:

A beep tone sounds and the display blinks. Consecutive arrows are displayed to indicate the progress of measurement. When measurement is completed, a beep tone sounds twice and the staff readings (Rh) and horizontal distance (Hd) are displayed.

Surveying

8. Setting Up Data Storage

• *: Factory setting

• Settings are saved even after the instrument is turned off.

• Up to 2000 points can be registered. If 2000 points have already been recorded, a beep tone sounds twice and the number of free points remaining is displayed as "0". Measurement results are not recorded. Press any button to return to the previous screen.

• See "15.2 Data Output" and "14. JOB Delete" for how to "Output" and "Delete" in the JOB setting mode.

• See "13. Displaying Recorded Data" for how to use "Review" and "Memory" in the Record setting mode.

Notes:

• Between 1 and 12 characters can be set for the JOB name.

• If measurement data has already been saved in the selected JOB, the unit of measurement (m or ft) cannot be changed. The same unit of data will be applied in the future to data that is saved to the same JOB.

• JOB names already used cannot be set.

Notes:

Data can be stored in Height difference measurement mode or Elevation measurement mode. JOB setting mode and record setting mode must be set up before data can be recorded.

JOB setting mode Record setting mode

8.1 JOB Setting

Set the JOB containing the measurement data to be recorded. Select from JOB01* to JOB20.

Surveying

• JOB Selection

Procedure

• JOB Quick Access

Step 2: When JOB numbers 1 to 10 are displayed, press

to jump to JOB number 11. When JOB numbers 11 to 20 are displayed, press to jump back to JOB number

Note:

Procedure

• Changing the JOB name

1 In the menu mode, select "JOB," and

then select "Select." The currently selected JOB and

number of data recorded in the JOB are displayed.

2 Select the JOB you will store the data

to.

3 Press to confirm the selected

JOB.

1 In menu mode, select "JOB" and

then "Edit." The currently selected JOB name is

displayed and can now be edited. The characters that can be input are

shown below. Each time is pressed, the cursor jumps to the first character of each row shown below.

Surveying

0123456789 ABCDEFGHIJ KLMNOPQRST UVWXYZ.+-

Example: Displaying the word AT

2 Press four times to display "A."

3 Press to move the cursor to the

next character.

4 Press five times to display "T."

When the word has been input, press

8.2 Record Conditions

Select the method for recording measurement data. In the menu mode, select "REC," and then "Cond." * Manual: When measurement is completed, check and

Auto: Data is automatically recorded for foresight point

Off: Data cannot be recorded.

record the data

measurements (check and record backsight point measurements manually)

to record the JOB name.

Surveying

8.3 Double-run Measurement

Note:

When "Return" is selected, "*" is displayed in front of measurement value Rh.

You can set single-run or double-run measurement data as additional information. When data is sent, you can distinguish single-run from double-run measurement data. In menu mode, select "REC" and then "Line." * Go: Record sent data

Return: Record returned data

8.4 Flow of Recording Data

The following explains the flow of recording measurement data. When using the numerical scale side of the staff and not the RAB code, manually input the measurement data.

A detailed explanation is provided below for items indicated by a *.

Surveying

Set the backsight point

number*

Measure the backsight

point

Check and record the

measurement results

Set attributes of foresight

point*

Set the point number of the

foresight point*

Measure (foresight) point

Check and record the

measurement results

Move the instrument point

Measure previous point as

backsight point

Measure next foresight

point

Procedure

The following procedure is an example of measurement in height difference measurement mode.

• Setting the point number

1 Press when measuring the

backsight point. The point number can now be set.

Surveying

2 Set the point number.

Advancing the point number If the point number is not set, data is recorded using the

automatically set number in the currently selected JOB. Check the measurement results together with the point number. Point number is displayed as follows:

• First record after power is switched ON • No data stored in JOB... 0001

• First record after power is switched ON • Data stored in JOB... point number of last measurement point

• Second or later record after power is switched ON • turning point...point number of last measurement point

• Second or later record after power is switched ON • No turning point...point number of last measurement point +1

Notes:

Procedure

3 Press to confirm the point

number.

• Setting attribute (only foresight)

1 Press when measuring the

foresight point. The attribute can now be set.

2 Set the attribute.

Each time or is pressed: IS (intermediate sight) Æ FIX (fixed point) Æ Off Æ FS (foresight) Æ IS (intermediate sight)

Surveying

3 Press to confirm the selected

If the attribute is not set, a point other than the backsight point is recorded as the foresight point.

Note:

Procedure

attribute. The point number can now be set.

(See "Setting the point number".)

• Inputting measurement data (measure the point using the numerical scale side of the staff)

1 Focus the DL-502/503 on the

numerical scale side of the staff and measure the backsight point.

2 Press .

Measurement data can now be input manually.

3 Input the measurement value found

in step 1.

4 Check the point number and press

"Yes" to record the selected data.

5 Measure the next point.

Surveying

9. Measuring Height Difference

ΔH

• When moving the instrument to a new position (step 8 below), press "Yes" to save the turning point before switching off the power.

Important:

Procedure

You can measure the height difference ΔH A) and foresight (point B).

The procedure below is for taking single measurements when "manual" is selected in the Record conditions menu.

1 Set up the instrument midway between

points A and B.

2 In menu mode, select "Ht-diff".

3 Measure the backsight.

4 Select "Yes" to accept the point

number attribute and measurement value.

The result is saved and the number of points that can be recorded in

Surveying

available memory is displayed.

between the backsight (point

5 Measure the foresight.

The instrument calculates the height difference

H relative to the back-

sight, and displays the result.

6 Select "Yes" to accept the point

number, attribute and measurement value.

The result is saved.

7 Press .

A message asks whether you want to change the instrument position.

8 If moving the instrument, select "Yes".

In step 5, the measured foresight is recorded as turning point (TP) height difference.

9 Transfer to the next instrument position

and repeat the measurements from step 3.

The height difference measured at step 5 is displayed as the height difference of the backsight (TP).

Surveying

• Point number input

Step 3: Press to ready the instrument for point

number input.

Step 5: Press twice to ready the instrument for

point number input. (See "8.4 Flow of Recording Data".)

• Attribute setting

Step 5:

Press to ready the instrument for attribute setting. (See

"8.4 Flow of Recording Data"

• Go and Return setting

Step 3:

Press to display the Go and Return Setting Screen. (See

"8.3 Double-run Measurement"

• Reviewing stored data

Steps 3 and 5:

Press to display the contents of the selected JOB. (See "13.1

Data Check and Edit"

• Manually inputting measurement data

Steps 3 and 5:

Press . Measurement data can now be input manually. (See

"8.4 Flow of Recording Data"

Notes:

Surveying

10. Measuring Elevation

• When moving the instrument to a new position (step 9 below), press "Yes" to save the Turning Point before switching off the power.

Important:

Procedure

From a known elevation (point A), you can measure the elevation (HA

H) of a specified ground point (point B).

The procedure below is for taking single measurements when "Manual" is selected in the Record conditions menu.

1 Set up the instrument between points

A and B.

2 In menu mode, select "Elev.".

3 Input the backsight elevation.

4 Measure the backsight.

Surveying

5 Select "Yes" to accept the point

number and measurement value. The result is saved and the number

of points that can be recorded in available memory is displayed.

6 Measure the foresight.

The instrument calculates the foresight elevation (Z), and displays the result.

7 Select "Yes" to accept the point

number, attribute and measurement value.

The result is saved.

8 Press .

A message asks whether you want to change the instrument position.

9 If moving the instrument, select

"Yes". In step 6, the measured foresight is

recorded as turning point (TP) elevation.

10 Transfer to the next instrument position

and repeat the measurements from step 3.

The elevation measured at step 6 is measured as the elevation of the backsight (TP).

Surveying

• Point number input

Step 4: Press to ready the instrument for point

number input.

Step 6: Press twice to ready the instrument for

point number input. (See "8.4 Flow of Recording Data".)

• Attribute setting

Step 6:

Press to ready the instrument for attribute setting. (See

"8.4 Flow of Recording Data"

• Go and Return setting

Step 4:

Press to display the Go and Return Setting Screen. (See

"8.3 Double-run Measurement"

• Storing backsight elevation Steps 3 and 10: Even after power off, backsight elevation is

stored or turning point is stored as the next backsight elevation. Since this value is the same as the value in the setting out elevation mode, the backsight elevation is stored to whichever mode is set last. (See "11.3 Setting Out Elevation".)

• Reviewing stored data

Steps 4 and 6:

Press to display the contents of the selected JOB. (See "13.1

Data Check and Edit"

• Manually inputting measurement data

Steps 4 and 6: Press . Measurement data can now be

input manually. (See "8.4 Flow of Recording Data".)

Notes:

Surveying

11. Setting Out Height Difference, Distance, and Elevation

Procedure

You can locate ground points that correspond to entered numerical data. The Set-Out menu provides three modes - height difference, distance, and elevation.

11.1 Setting Out Height Difference

By entering the height difference (ΔH) from a benchmark (point A), you can find a ground point (point B) at a specified height difference from the benchmark.

The procedure below is for taking single measurements.

1 Set up the instrument between points

A and B.

2 In menu mode, select "Set-out", then

select "Ht-diff".

Surveying

3 Input the height difference value that

you want to stake out.

4 Measure the backsight.

• When in this menu and setting-out has already been taken (for the second or subsequent reading):

Step 4: The previous backsight measurement will be displayed

and the program skips to step 5.

• Storing setting out height difference: Step 3: Even after power off, the height difference is stored.

Notes:

The instrument takes the backsight reading and displays the measurement.

5 Select "Yes" to accept the value.

6 Measure the foresight.

The instrument calculates the difference between the measurement and the input value, and displays the result.

7 Move the staff by the amount shown

on the screen, then take another foresight reading.

If "Fill" is displayed, move the staff upward. If "Cut" is displayed, move the staff downward. When the display shows '0', you have found the specified ground point.

8 Press or .

Height difference set-out is completed. Set out the next ground point.

Surveying

11.2 Setting Out Distance

Procedure

By entering the distance (Hd) from a benchmark (point A), you can find a ground point (point B) at a specified distance from the benchmark.

The procedure below is for taking single measurements.

1 Set up the instrument at point A.

2 In menu mode, select "Set-out", then

3 Input the distance that you want to

select "Dist.".

stake out.

Surveying

4 Measure the foresight.

The instrument calculates the difference between the measurement and the input value, and displays the result.

5 Move the staff by the amount shown

• Storing setting out distance Step 3: Even after power off, distance is stored.

Note:

on the screen, then take another foresight reading.

If "Out" is displayed, move the staff backward. If "In" is displayed, move the staff forward. When the display shows '0', you have found the specified ground point.

6 Press or .

Distance set-out is completed. Set out the next ground point.

11.3 Setting Out Elevation

By entering the elevation (HA + ΔH) from a known benchmark (point A), you can find a ground point (point B) at a specified elevation.

The procedure below is for taking single measurements.

Surveying

1 Set up the instrument midway

Procedure

between points A and B.

2 In menu mode, select "Set-out", then

select "Elev.".

3 Input the backsight elevation.

4 Measure the backsight.

The instrument takes the backsight reading and displays the measurement.

5 Select "Yes" to accept the value.

6 Input the elevation that you want to

stake out.

7 Measure the foresight.

The instrument calculates the difference between the measurement and the input value, and displays the result.

8 Move the staff by the amount shown

on the screen, then take another foresight reading.

If "Fill" is displayed, move the staff upward. If "Cut" is displayed, move the staff downward.

Surveying

When the display shows '0', you have found the specified ground point.

9 Press or .

• When in this menu and setting-out has already been taken (for the second or subsequent reading):

Step 4: The previous backsight measurement will be displayed

and the program skips to step 5.

• Storing backsight elevation: Step 3: Even after power off, backsight elevation is stored.

Since this value is the same as the value in the elevation measurement mode, the backsight elevation is stored to whichever mode is set last. (See "10. Measuring Elevation".)

• Storing setting out elevation Step 6: Even after power off, elevation is stored.

Notes:

Elevation set-out is completed. Set out the next ground point.

Surveying

12. Other Measurement Functions

12.1 Measuring Horizontal Angle

You can measure the horizontal angle between point A and point B by using the horizontal circle.

12.2 Using the Instrument as a Standard Level

By using the numeric scale side of the staff, you can use the DL-502/503 as a standard level. Simply focus on the staff and read the scale.

In the Height difference measurement mode and Elevation measurement mode, the sighted value can be manually input in the currently selected JOB. (See "8.4 Flow of Recording Data".)

Surveying

13. Displaying Recorded Data

• Attributes can be changed in the following order only: BS (backsight point) Æ FS (foresight point) Æ IS (intermediate sight) Æ FIX (fixed point) Æ Off Æ DEL (delete). (Example: Data recorded as IS (intermediate sight) can be changed to FIX (fixed point), Off or DEL (delete), but not to BS (backsight point) or FS (foresight point).

• Point number and measurement results cannot be edited.

Important:

Procedure

Data recorded in Height difference measurement mode or Elevation measurement mode can be edited. Use the Record Setting Mode to check data and display the number of recorded points.

13.1 Data Check and Edit

Check the contents saved in the currently selected JOB. Attributes can be changed.

1 In menu mode, select "REC" and

then select "Review." The last recorded data in the

currently selected JOB is displayed.

2 Display the data that you want to

review.

Press to display the previously displayed data.

Managing Recorded Data

3 Press .

• "DEL" setting and Number of points that can be recorded

If the DEL attribute is selected for recorded data, the data is not displayed. Setting DEL does not delete data from memory, so the number of points that can be stored in free memory does not increase. When a JOB is deleted, all data with the DEL attributes recorded in other JOBs is also deleted.

• Double-run Measurement

When "Return" is selected, "*" appears in front of measurement value Rh.

Notes:

• You can reach here also by pressing and then in status mode.

Note:

The attributes can now be changed.

4 Display the attribute you want to

change.

5 Press to confirm the selected

attribute.

Managing Recorded Data

13.2 Number of Recorded Points

In the menu mode, select "REC," and then "Memory." The number of points (up to 2000) that can be recorded is displayed.

14. JOB Delete

• JOBs that cannot be output (indicated by * next to JOB) cannot be deleted.

Important:

Procedure

Delete the JOB and the contents of the JOB. Carry out JOB deletion in the JOB setting mode. (JOBs cannot be deleted when the battery is LOW.)

1 In menu mode, select "JOB" and

then "Delete." The currently selected JOB and

number of data recorded in the JOB are displayed.

2 Display the JOB you want to delete.

3 Press , and then select "Yes."

The selected JOB and contents of the JOB are deleted.

Managing Recorded Data

• JOB Quick Access

Step 2:

When JOB numbers 1 to 10 are displayed, press to jump to JOB number 11. When JOB numbers 11 to 20 are

displayed, press to jump back to JOB number 1.

• JOB name Step 3: After the JOB is deleted, the default JOB name set at

the factory is displayed: JOB01 to JOB20.

• Number of points that can be recorded When a JOB is deleted, data with the DEL attributes recorded in

other JOBs is also deleted, and the value indicating the number of points that can be stored in free memory increases.

Notes:

15. Sending Recorded Data

• The DL-502/503 accepts commands only when in status mode or menu mode. Received commands are not executed in any other state.

Important:

Recorded data can be sent to a connected computer or data collector. Commands sent from a computer or the data collector instruct the DL502/503 to carry out measurement, and the measurement results are output.

15.1 Connecting to a Computer or Data Collector

Managing Recorded Data

Use the dedicated communication cable to connect the 502/503

• Communication cable

If using a data collector, use the cable supplied with the data collector.

to the data collector or a computer.

Computer Cable Notes IBM PC/AT or

compatible

Other personal computers

DOC26 Length: 2m

Pin Numbers and signal levels:

DOC27 F-4 F-24 DOC1 No connector for attachment to

D-sub connector:

a computer.

RS-232C compatible

DOC26: 25 pins (female) DOC27: 9 pins (female)

DL-

• Pin assignments of the data output connector

• Data recorded in a JOB that has not been sent is indicated by an asterisk (*).

Important:

Procedure

Pin No. Signal 1SG (GND) 2 NC (unused) 3SD (TXD) 4 RD (RXD) 5 Power source (output) 6 Reserved (must not be used)

Managing Recorded Data

15.2 Data Output

The contents of a JOB can be output to a computer in CSV or SDR2X format.

1 Use a cable to connect the

to a computer. ("15.1 Connecting

503 to a Computer or Data Collector")

2 In menu mode, select "JOB" and

then "Output." The currently selected JOB and recorded point numbers are displayed.

3 Select the JOB you wish to send.

DL-502/

4 Select the data output format.

• JOB Quick Access Step 2: When JOB numbers 01 to 10 are displayed, press

to jump to JOB number 11. When numbers 11 to

20 are displayed, press to jump to JOB number

Step 4: Press to display the communication conditions

setting screen.

• Data output format/command operations For details, refer to the "Output Format and Command

Explanations (DL Edition)" manual and ask your local dealer.

Note:

Data is output. When data output is completed, the JOB setting mode.

DL-502/503

returns to

Managing Recorded Data

16. Changing the Settings

• Press to toggle between the pages.

• Asterisks (*) indicate factory settings.

• Settings are kept in memory after power-off.

• "19.2 Adjusting the Reticle" for the check and adjustment procedure.

Notes:

You can change settings such as the measuring mode and the number of decimals in displayed data. When you select "Config." in menu mode, the two-page configuration menu is displayed.

Page 1

• Meas. (measuring mode)

• Display (fractional/decimal representation of height units)

• Adjust (checks and adjustment)

• RS-232C (communication parameters)

Other Procedures

16.1 Measuring Mode

Page 2

• Auto-off (auto power-off)

• Unit (unit of measurement)

You can select any of the following measuring modes. Page 1 * Single: The instrument automatically terminates fine

measurement after taking one reading.

Average: Displays the average value calculated from the

number of times fine measurement is repeated. (Repeat default setting: 5 times, Repeat setting range: 2 to 9 times.)

Waving: For measurement using Wave-and-Read

Measure

• When is pressed in Set-out mode, the Measurement conditions setting screen can be displayed.

Note:

function

Repeat: The instrument repeats fine measurements

until the operator presses or .

Page 2

Tracking:

The instrument repeats coarse measurements until the operator presses or .

16.2 Fractional/Decimal Representation of Height Units

You can set the fractional/decimal display format for displaying height values. The following options are available when using "m" as the unit: * 0.0001m: Up to 4 decimals (when measuring mode is

0.001m:

The following options are available when using "ft" as the unit: * 0.001ft: Up to 3 decimals (when measuring mode is

0.01ft:

Only the following option is available when using

"single", "repeat", "average" or "Waving")/Up to 3 decimals (when measuring mode is "tracking")

Up to 3 decimals ("single", "repeat", "average" or "

Waving

")/Up to 2 decimals ("tracking").

"single", "repeat" or "average")/Up to 2 decimals (when measuring mode is "tracking"). Up to 2 decimals ("single", "repeat" or "average")/ Up to 1 decimal ("tracking").

"inch" as

the unit:

Other Procedures

1/8: **-**-*/

The fractional/decimal display format for distance values depends on the settings only in measuring mode.

(See "3.2 Display".)

Note:

• Outputting start code and end code (CSV format)

Press to display the setting screen for outputting start and end codes.

Yes: During data output, outputs start code (STX) and end

code (ETX).

* No: Outputs text data only.

Note:

16.3 Communication Parameters

You can select the communication parameters for connecting a data collector or a computer. The baud rate and parity settings can be selected from the following.

• Baud rate: *1200 bps / 2400 bps / 4800 bps /

• Parity: *None / Odd / Even

Other Procedures

9600 bps / 19200 bps / 38400 bps

16.4 Auto Power-Off

You can enable or disable the auto power-off function. * On(30min): The instrument powers off automatically 30

minutes after the last key operation.

Off: The auto power-off function is disabled.

16.5 Unit of Measurement

• If measurement data has already been saved in the selected JOB, the unit of measurement cannot be changed.

• "Inch" here means "fraction of an inch", "fraction of an inch" is the unit used in the United States and expressed like the following example.

Note:

You can select the display unit to be used. *m

ft inch

Other Procedures

17. Warnings and Error Messages

The table below shows the warnings and error messages displayed by the DL-502/503 and describes the cause of each warning or error message.

Error Message Coded Message Meaning

E400 E401 E402 E405 E406

Other Procedures

• System error due to a fault in the instrument. Contact your local dealer.

• Calculation error in Waveand-Read measurement.

Error Message Coded Message Meaning

E410 E411 E412 E413 E414 E415 E416 E417 E418 E419 E420 E421 E422 E423 E424 E425 E426 E427 E428 E429

• An object other than the staff is being sighted.

• The staff is out of focus.

• The staff is partly unreadable because obscured by an obstacle or damaged.

• The staff is too close or too far away.

• A shadow is falling on part of the staff.

• The staff was incorrectly sighted.

• Light is coming into the eyepiece. Use your hand or body to shield eyepiece from light source.

• The staff is set up in the inverted position for Wave-and-Read measurement.

E430 E433

• Too bright.

• The brightness level suddenly altered during the measurement.

• Something is shining nearby or at back of the staff.

• Light is coming into the eyepiece.

• Use your hand or body to shield eyepiece from light source.

E431

• Something obscured the staff or the brightness level suddenly altered during the measurement.

Other Procedures

Error Message Coded Message Meaning

• Coded messages are not displayed on DL-502/503 display.

• No error message displayed when compensation range (±15') is exceeded.

Note:

E432 • Too dark.

• The brightness level suddenly altered during the measurement.

E440 • The instrument is subject

to excessive vibrations or hot conditions are producing shimmer.

• The staff is stationary, or the waving angle thereof is insufficient when performing Wave-and-Read measurement.

E456 E457

• The staff height being sighted is either less than

0.5m (too low) or greater than 4m (too high) when performing Wave-and-

Other Procedures

E458 E459

Read measurement.

• The distance to the staff is either less than 5m (too near) or greater than 50m (too far) when performing Wave-and-Read measurement.

E498 • Measurement results not

obtained within 20 seconds of starting Waveand-Read measurement.

18. Charging the Battery

• Do not short circuit. Heat or ignition could result.

• Batteries cannot be charged, even when the charging lamp is flashing, when the temperature is outside the charging temperature range.

• Do not leave the battery anywhere exposed to high temperatures. Battery life may be reduced.

• Charge the battery once a month to maintain its quality when not in use for long periods.

• Do not charge the battery just after charging is completed. Battery performance may decline.

• Do not use to charge batteries other than those specified.

• If you allow the battery level to get too low, the battery may not be rechargeable or operating time may decline. Keep the battery always charged.

• The charger will get rather hot while in use. This is normal.

Important:

Procedure

1 Connect the power cable to the CDC68 charger and plug the

charger into the wall outlet.

2 Mount the battery (BDC46B) in the charger (CDC68) matching the

groove on the battery with the guides on the charger. When charging starts, the lamp starts blinking.

Other Procedures

3 Charging takes approximately 2.5 hours.

• Slots 1 and 2

• Step 2: The charger starts charging the battery mounted

first. If you place two batteries in the charger, the battery in slot 1 is charged first, and then the battery in slot 2.

• Charging lamp

• Steps 2 and 3: The charging lamp is off when

•The charger is outside the charging temperature range.

•The battery is mounted incorrectly.

If the lamp is still off after the charger falls within its charging temperature range and the battery is mounted again, contact your local dealer.

Notes:

The lamp lights when charging is finished.

4 Remove the battery and unplug the charger.

Other Procedures

19. Checks and Adjustments

Procedure

Always check and adjust before use to ensure accurate measurements.

• Make sure the instrument is securely set up and stable before performing checks and adjustments.

• Do not perform checks and adjustments with “Waving” selected as measuring mode.

19.1 Adjusting the Circular Level

Check that the bubble remains centered in the circular level. Adjust if the bubble shifts position.

Adjust the leveling foot screws until the bubble is centered in the circle.

2 Turn the instrument 180°.

The bubble should not shift from the center. If the bubble does move, adjust as follows:

3 Compensate for one-half of the shift

by adjusting the leveling foot screws

Other Procedures

4 Eliminate the remaining shift by

Adjust with the level adjusting screw

Adjusting screws

Procedure

turning the circular level adjusting screws with the hexagonal wrench until the bubble is centered.

5 Turn the instrument 180°.

If the bubble stays in the center, adjustment is completed. If the bubble moves, repeat steps 3 and 4.

19.2 Adjusting the Reticle

The reticle cross-lines can be corrected if out of adjustment. While reading the staff RAB-code, adjust the reticle by

Other Procedures

• Correcting the reference value of the CCD line sensor

correcting the reference value of the CCD line sensor and then make mechanical adjustments to the instrument.

As described in the following procedure, high accuracy readings are obtained by turning the tripod and taking repeat readings of the staff. For less accurate readings, see Notes for checking the reticle without turning the tripod.

1 In menu mode, select "Config", then

in page 1 of the Config. menu, select "Adjust".

2 Place staffs a and b approximately

30m apart and set the instrument halfway between the staffs (position A).

Place staffs to within 50cm (20 inch) of the distances described in the procedure. Otherwise, measurement accuracy may be adversely affected.

3 Press .

4 Measure staff a.

5 Select "Yes" to accept the value.

6 Measure staff b.

7 Select "Yes" to accept the value.

8 Select "Yes".

9 Turn the tripod 180°.

10 Repeat steps 4 through 6, sighting the

two staffs and taking the readings.

11 Select "Yes" to accept the value.

12 Move the instrument to a position

approximately 3m from staff a along a straight line joining staffs a and b. The new position is B.

13 Press .

14 Repeat steps 4 through 11, sighting

the two staffs and taking the readings. If you turned the tripod at step 8, a

diagram of the tripod positions will be displayed. Turn the tripod again.

Other Procedures

15 Check the difference between the

results and decide whether correcting the reference value of the sensor is required.

If the difference is 0.3mm or less, no adjustment is necessary. If the difference exceeds the 0.3mm permissible range, adjustment is necessary.

If correcting the reference value is not necessary:

16 Select "No".

17 Select "Yes" to exit from the Adjust

menu.

If correcting the reference value is required:

16 Select "Yes".

The instrument calculates and records the required reticle adjustment from the measurement results, and then returns to the menu selection.

17 Repeat steps 1 through 15. Make

sure that the difference between the results is within 0.3mm.

• Mechanical adjustment

1 Sight the barcode face of staff b from

position B and measure with the instrument.

2 Sight the scale face of staff b from

position B and take a visual reading.

3 If the difference between the mea-

surements taken at steps 1 and 2 is 2mm or more, adjust the cross-line as described below.

If the difference is less than 2mm, the following steps are not necessary.

Other Procedures

4 Remove the adjusting screw cover

and insert a hexagonal wrench (M3) in the adjusting screw.

5 Turn the adjusting screw, then repeat

steps 1 and 2. Adjust so that the difference between the two measurements is less than 2mm.

If the measurement at step 2 is larger than the measurement at step 1, lower the cross-line by slightly loosening the adjusting screw. If the measurement at step 2 is smaller than the measurement at step 1, raise the cross-line by slightly tightening the adjusting screw.

6 Replace the adjusting screw cover.

• Saving measurement values during correcting the reference value of the sensor and power off

• Steps 9, 12 and 14:

"Data keep" screen asks whether or not you want to save the measurement values during setting internal constants. Select "Yes" to save measurement values and turn power off. When power is turned on again and page 1 of the Config. menu is selected, Screen Status at last power off is displayed. Select "No" to cancel measurement values and turn power off.

• Difference calculations:

• Step 15: If the tripod is turned and repeat measurements taken:

Value at position A = {[(1st reading on staff a) + (1st

reading on staff b)] + [(2nd reading on staff a) – (2nd reading on staff b)]} / 2

Value at position B = {[(1st reading on staff a) + (1st

reading on staff b)] + [(2nd reading on staff a) – (2nd reading on staff b)]} / 2

Difference = absolute value of [(value at position A) –

(value at position B)]

If the tripod is not turned and only one set of measurements are taken: Value at position A = [(reading on staff a) – (reading on

staff b)]

Value at position B = [(reading on staff a) – (reading on

staff b)]

Difference = absolute value of [(value at position A) –

(value at position B)]

Notes:

Other Procedures

20. Equipment and Accessories

456

20.1 Standard Equipment

Before using your DL-502/503, first make sure that all the follow-ing products were supplied.

Other Procedures

• Layout Plan

DL-502/503 ....................................................................1

Battery (BDC46B) ..........................................................1

Charger (CDC68)...........................................................1

Power cable (EDC113A/113B/113C)..............................1

Hexagonal wrench M2.5 (for circular level)....................1

Dust cover......................................................................1

Cleaning cloth ................................................................1

Operator's manual .........................................................1

Carrying case.................................................................1

The optional accessory can also be placed in the carrying case.

Diagonal eyepiece (DE23) .............................................1



(2 batteries can be placed here)

20.2 Optional Accessory

• Diagonal eyepiece (DE23)

The diagonal eyepiece is useful for taking measurements in confined spaces. First remove the standard DL-502/503 eyepiece by turning it counter-clockwise. Then, screw the diagonal eyepiece in place of the standard eyepiece.

Other Procedures

20.3 Staffs

• Staff types

Name Material Length/Front/Reverse Feature

BIS20 Invar 2.0m (6.6ft)

Front: RAB code

BIS30 Invar 3.038m (9.8ft)

Front: RAB code

BGS40 Glass fiber 4.08m (3 sections)

Front: RAB code Reverse: graduated

BGS50 Glass fiber 5.09m (4 sections)

Front： RAB code

Other Procedures

BGS50G Glass fiber 5.09m (4 sections)

BAS55 Aluminum 5.0m (5 sections)

BRS55 Aluminum 5.0m (5 sections)

Reverse: graduated

Front： RAB code Reverse: graduated

Front: RAB code Reverse: graduated

Front: RAB code Reverse: graduated on reflective surface

ISO 12858-1: 1999 compatible

ISO 12858-1: 1999 compatible For high precision leveling

With handle

Unit: feet

Distances can be measured with Total Station by using the reverse side (reflective sheet). (Applies only to instruments that can measure in sheet mode.)

*:RAB code (RAndom Bi-directional code) is a coded staff used with TOPCON digital levels.

Other Procedures

21. Specifications

Except where stated, the following specifications apply to all DLs.

Teles cope

Length 260 mm Objective aperture: DL-502: Ø45mm

Magnification: DL-502: 32x

Image: Erect Resolving power: DL-502: 3″

Field of view: 1°20′ Minimum focus: 1.5m (5.0 ft) Stadia ratio: 1:100 Stadia additive constant: 0

Staffs

Invar staff

Specifications

Glass fiber staff BGS40: 58mm (W) x 28mm (D) x 4080mm (H)

BIS20: 85mm (W) x 40mm (D) x 2000mm (H)

BIS30: 85mm (W) x 40mm (D) x 3038mm (H)

The coefficient of linear expansion: α=1 x 10

BGS50/50G: 58mm (W) x 28mm (D) x 5090mm (H)

DL-503: Ø36mm

DL-503: 28x

DL-503: 3.5″

{3.4in. (W) x 1.6in. (D) x 6.6ft (H)}

4.3kg (9.5lb.) (one staff) 17.1kg (37.7lb.) (two staffs and case)

{3.4in. (W) x 1.6in. (D) x 10.0ft (H)}

5.5kg (12.2lb.) (a staff) 23.4kg (51.6lb.) (two staffs and case)

(3 sections) {2.3in. (W) x 1.1in. (D) x 13.3ft (H)}

2.4kg (5.3lb.) (one staff) 3.0kg (6.6lb.) (a staff and case)

(4 sections) {2.3in. (W) x 1.1in. (D) x 16.7ft (H)}

3.0kg (6.6lb.) (one staff) 3.6kg (8.0lb.) (one staff and case)

-6

/°C

The coefficient of linear expansion: α=20 x 10

-6

/°C

Aluminum staff

BAS55: 50mm (W) x 27.8mm (D) x 5005mm (H)

(5 sections) {2.0in. (W) x 1.1in. (D) x 16.4ft (H)}

1.9kg (4.2lb.) (one staff) 2.2kg (4.9lb.) (one staff and case)

The coefficient of linear expansion : α=24 x 10

-6

/°C

Measurement

Horizontal circle: Diameter: 103mm

Graduation:1° / 1gon Measuring range:*1 Height 0 to 4m (13.3 ft) (with BGS40 staff)

0 to 5m (16.7 ft) (with BGS50 staff)

DL-502:

0.0375 to 1.9305m (0.124 to 6.333 ft)

(with BIS20 staff)

0.0375 to 2.9725m (0.124 to 9.752 ft)

(with BIS30 staff) Distance 1.6 to 100m Minimum display: Height 0.0001m / 0.001m (0.001 ft/0.01ft)

(selectable)

(single, repeat, average or Wave-and-

Read mode)

0.001m / 0.01m (0.01ft/0.1ft) (tracking

mode) Distance 0.01m (0.1ft) (single, repeat or average

mode)

0.1m (1 ft) (tracking or Wave-and-Read

mode) Accuracy:*1 (with staff BGS40/50 or BIS20/30) Height Standard deviation for 1 km of double-run

DL-502:

Electronic Measurement

0.6mm (0.03in.) (with BIS20/30)

1.0mm (0.04in.) (with BGS40/50/50G)

1.2mm (0.047in.) (with BAS55)

Visual Measurement

1.0mm (0.04in.) (with BGS40/50/50G)

1.5mm (0.06in.) (with BAS55)

Specifications

DL-503:

Electronic Measurement

Visual Measurement

Distance ±10mm (less than 10m measurement)

Measuring modes: Single / Repeat / Average / Tracking /

Measuring time:*2

Automatic compensator: Magnetic damping and pendulum

Compensation range: ±15′

Wave-and-Read Recommended brightness level for measurement

Recommended speed for waving of staff

Measuring range

Waving angle:5 to 10

Specifications

Recommended staff*3: BGS series

*1 When measuring outdoors with minimal atmospheric motion,

*2 When measuring to a staff set up outdoors in fine to cloudy

*1, 2 These specifications may change depending on the weather

Height : 0.5 to 4m Distance: 5 to 50m

the staff set up in natural sunlight and luminosity at the surface of the staff equal to 20lx.

conditions.

conditions and measurement conditions.

0.8mm (0.03in.) (with BIS20/30)

1.5mm (0.06in.) (with BGS40/50/50G)

1.7mm (0.047in.) (with BAS55)

2.0mm (0.08in.) (with BGS40/50/50G)

2.5mm (0.06in.) (with BAS55)

±(0.1% x D) (10 to 50m measurement)

±(0.2% x D) (more than 50m measurement)

(D: measured distance, unit: m)

Wave-and-Read

Single

Average No. of measurements set

Tracking

mechanism

150 lx or more

0.5Hz (3 passings of the staff through the

vertical position in 3 seconds)

(selectable)

Repeat approx. 2.5 sec.

x approx. approx.

2.5

1 sec.

sec.

° either side of the vertical position

BAS55 (up to heights of 3m)

*3 Staff face remains sighted in the reticle throughout the entire

waving movement.

Power

Power supply: Rechargeable Li-ion battery (BDC46B) Battery state indicator: 4 levels Working duration: more than 16 hours (at 25°C) Charging time: about 2.5 hours*4 (using CDC68) (BDC46B) Nominal voltage: 7.2V Storage temperature range:-20 to 35°C (-4 to 95°F) (CDC68) Input voltage: with EDC113A/113C:110 to 240VAC

50/60Hz

with EDC113B:110 to 125VAC

50/60Hz Charging temperature range:0 to 40°C (32 to 104°F) Storage temperature range: -20 to 65°C (-4 to 149°F)

*4 Charging can take longer than the times stated above when

temperatures are either especially high or low.

General

Display: 128 x 32 dot matrix LCD with illuminator Keypad:

8 keys (7 keys on front panel;

1 key on side

panel)

Auto power-off: On (instrument powers off if not used for

30 min.) / Off (selectable) Data output: RS-232C compatible Circular level sensitivity: 10′/2mm Operating temperature range:-20 to 50°C (-4 to 122°F) Storage temperature range:-40 to 70°C (-40 to 158°F) Water resistance: IPX4 Dimensions: 158 (W) x 257 (D) x 182 (H) mm

(6.2(W) x 10.1 (D) x 7.2 (H) inch) Weight (with battery): about 2.4kg (5.3lb)

Specifications

22. Regulations

For users in the US

WARNIN G: Changes or modifications to this unit not

expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

For users in California

WARNIN G: Handling the cord on this product or cords

associated with accessories sold with this product will expose you to lead, a chemical known to the State of California to cause birth defects or other reproductive harm. Wash hands after handling.

For users in Canada

This Class A digital apparatus meets all requirements of Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la Class A respecte toutes les exi-gences du Réglement sur le matériel brouilleur du

Regulations

Canada.

For users in the Republic of Korea

Regulations

This is the mark of the Japan Surveying Instruments Manufacturers Association.

Topcon DL-502, DL-503 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual