electronic digital theodolite - sokkia europe · · 2016-01-14electronic digital theodolite ......

SURVEYING INSTRUMENTS

DT500DT500SDT500A

DT500ASDT600

DT600SElectronic Digital Theodolite

OPERATOR'S MANUAL

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

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10. 測定モードの測定

• Thank you for selecting the DT500/DT500S/DT500A/DT500AS/DT600/DT600S.

• Before using the instrument, please read this operator's manual care-fully.

• Verify that all equipment is included."14.1 Standard Equipment"

• The specifications and general appearance of the instrument maybe altered at any time and may differ from those appearing in bro-chures and this manual.

• Some of the diagrams shown in this manual may be simplified foreasier understanding.

OPERATOR'S MANUAL

SURVEYING INSTRUMENTS

DT500DT500SDT500A

DT500ASDT600

DT600SElectronic Digital Theodolite

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CONTENTS

1. PRECAUTIONS FOR SAFE OPERATION ....................... 1

2. PRECAUTIONS ................................................................ 4

3. HOW TO READ THIS MANUAL....................................... 6

4. PARTS OF THE INSTRUMENT ....................................... 7

5. INSTALLING / REMOVING THE BATTERY .................... 9

6. SETTING UP THE INSTRUMENT .................................. 116.1 Centering .......................................................................... 116.2 Levelling ............................................................................ 12

7. FOCUSSING AND TARGET SIGHTING ........................ 15

8. POWER ON .................................................................... 17

9. MEASUREMENT ............................................................ 199.1 Measure the horizontal angle between

2 points (H angle 0) ........................................................... 199.2 Set Horizontal Circle to a Required Value

(Horizontal angle hold) ...................................................... 199.3 Changing Horizontal Angle Display Mode......................... 209.4 Changing Vertical Angle Display Mode ............................. 209.5 Stadia Survey .................................................................... 21

10. DATA OUTPUT .............................................................. 2210.1 Connecting a Computer .................................................... 2210.2 Communication Functions Command and Output ............ 23

11. CHANGING INSTRUMENT OPTIONS ........................... 24

12. ERROR MESSAGES ...................................................... 28

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10. 測定モードの測定CONTENTS

13. CHECKS AND ADJUSTMENTS .................................... 2913.1 Plate Level ........................................................................ 2913.2 Circular Level .................................................................... 3013.3 Tilt Sensor ......................................................................... 3113.4 Reticle ............................................................................... 3513.5 Optical Plummet ................................................................ 36

14. STANDARD EQUIPMENT AND OPTIONALACCESSORIES .............................................................. 3914.1 Standard Equipment ......................................................... 3914.2 Optional Accessories ........................................................ 4014.3 Layout Plan ....................................................................... 41

15. APPENDICES ................................................................. 4215.1 Manually Indexing the Vertical Circle by Face Left,

Face Right Measurement .................................................. 4215.2 Battery Selection ............................................................... 43

16. SPECIFICATIONS .......................................................... 44

17. REGULATIONS .............................................................. 46

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10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è1. PRECAUTIONS FOR SAFE OPERATION1. PRECAUTIONS FOR SAFE OPERATIONFor the safe use of the product and prevention of injury to operators andother persons as well as prevention of property damage, items which shouldbe observed are indicated by an exclamation point within a triangle used withWARNING and CAUTION statements in this operator’s manual.The definitions of the indications are listed below. Be sure you understandthem before reading the manual’s main text.

Definition of Indication

Ignoring this indication and making an operation errorcould possibly result in death or serious injury to theoperator.

Ignoring this indication and making an operation errorcould possibly result in personal injury or property dam-age.

This symbol indicates items for which caution (hazard warnings in-clusive) is urged. Specific details are printed in or near the symbol.

This symbol indicates items which are prohibited.Specific details are printed in or near the symbol.

This symbol indicates items which must always be performed.Specific details are printed in or near the symbol.

WARNING

CAUTION

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10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è1. PRECAUTIONS FOR SAFE OPERATION

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General

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

Do not perform disassembly or rebuilding. Fire, electric shock or burnscould result.

Never look at the sun through the telescope. Loss of eyesight couldresult.

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

Direct viewing of the sun during sun observation will cause loss ofeyesight.

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

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

Do not wield or throw the plumb bob. A person could be injured ifstruck.

Secure handle to main unit with locking screws. Failure to properlysecure the handle could result in the unit falling off while being car-ried, causing injury.

Tighten the adjustment tribrach clamp securely. Failure to properlysecure the clamp could result in the tribrach falling off while beingcarried, causing injury.

WARNING

CAUTION

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10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è1. PRECAUTIONS FOR SAFE OPERATION

Power Supply

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

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

Do not use batteries if wet. Resultant shorting could lead to fire orburns.

Do not touch liquid leaking from batteries. Harmful chemicals couldcause burns or blisters.

Tripod

When mounting the instrument to the tripod, tighten the centeringscrew securely. Failure to tighten the screw properly could result inthe instrument falling off the tripod, causing injury.

Tighten securely the leg fixing screws of the tripod on which the in-strument is mounted. Failure to tighten the screws could result in thetripod 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 tri-pod in the ground. A hand or foot stab wound could result.

Tighten the leg fixing screws securely before carrying the tripod. Fail-ure to tighten the screws could lead to the tripod legs extending, caus-ing injury.

WARNING

CAUTION

WARNING

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10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è2. PRECAUTIONS2. PRECAUTIONSTribrach Clamp (DT500)• When the instrument is shipped, the

tribrach clamp is held firmly in place witha locking screw to prevent the instrumentfrom shifting on the levelling base. Be-fore using the instrument the first time,loosen this screw with a screwdriver. Andbefore transporting it, tighten the lock-ing screw to fasten the tribrach clamp inplace so that it will not shift on the level-ling base.

Precautions concerning water and dust resistanceDT conforms to IP66 specifications for waterproofing and dust resistancewhen the battery cover is closed and connector caps are attached correctly.

• Be sure to close the battery cover and correctly attach the connector capsto protect the DT from moisture and dust particles.

• Make sure that moisture or dust particles do not come in contact with theinside of the battery cover, terminal or connectors.Contact with these parts may cause damage to the instrument.

• Make sure that the inside of the carrying case and the instrument are drybefore closing the case. If moisture is trapped inside the case, it may causethe instrument to rust.

Other precautions• If the DT is moved from a warm place to an extremely cold place, internal

parts may contract and make the keys difficult to operate. This is causedby cold air trapped inside the hermetically sealed casing. If the keys do notdepress, open the battery cover to resume normal functionality. To preventthe keys from becoming stiff, remove the connector caps before movingthe DT to a cold place.

• Never place the DT directly on the ground. Sand or dust may cause dam-age to the screw holes or the centering screw on the base plate.

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10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è2. PRECAUTIONS

• Protect the DT from heavy shocks or vibration.

• Never carry the DT on the tripod to another site.

• Turn the power off before removing the battery.

• When placing the DT in its case, first remove its battery and place it in thecase in accordance with the layout plan.

“14.3 Layout Plan”

Maintenance• Always clean the instrument before returning it to the case. The lens re-

quires special care. First, dust it off with the lens brush to remove tinyparticles. Then, after providing a little condensation by breathing on thelens, wipe it with a soft clean cloth or lens tissue.

• If the display is dirty, carefully wipe it with a soft, dry cloth. To clean otherparts of the instrument or the carrying case, lightly moisten a soft cloth in amild detergent solution. Wring out excess water until the cloth is slightlydamp, then carefully wipe the surface of the unit. Do not use any organicsolvents or alkaline cleaning solutions.

• Store the DT in a dry room where the temperature remains fairly constant.

• Check the tripod for loose fit and loose screws.

• If any trouble is found on the rotatable portion, screws or optical parts (e.g.lens), contact your SOKKIA agent.

• When the instrument is not used for a long time, check it at least onceevery 3 months.

“13. CHECKS AND ADJUSTMENTS”

• When removing the DT from the carrying case, never pull it out by force.The empty carrying case should be closed to protect it from moisture.

• Check the DT for proper adjustment periodically to maintain the instrumentaccuracy.

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10. 測定モードの測定3. HOW TO READ THIS MANUAL

The following conventions are used in this manual.• This manual is for DT500/DT500S/DT500A/DT500AS/DT600/DT600S.• Functions differ depending on the theodolite model used.• Screens and illustrations appearing in this manual are of DT500.

SymbolsThe following conventions are used in this manual.

: Indicates precautions and important items which should be readbefore operations.

: Indicates the chapter title to refer to for additional information.

: Indicates supplementary explanation.

: Indicates an explanation for a particular term or operation.

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10. 測定モードの測定4. PARTS OF THE INSTRUMENT4. PARTS OF THE INSTRUMENT

1 Handle2 Handle securing screw3 Instrument height mark4 Battery cover5 Data output connector

(Not included on DT600/DT600S)6 Operation panel7 Tribrach clamp

(Not included on DT600.DT500S/500AS/600S:Shiftingclamp)

8 Base plate9 Levelling foot screw10 Circular level adjusting screws11 Circular level12 Display13 Optical plummet eyepiece14 Optical plummet reticle cover15 Optical plummet focussing ring16 Objective lens

17 Tubular compass slot18 Horizontal clamp19 Horizontal fine motion screw20 Plate level21 Plate level adjusting screw22 Vertical clamp23 Vertical fine motion screw24 Telescope eyepiece25 Telescope focussing ring26 Peep sight27 Instrument center mark

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10. 測定モードの測定4. PARTS OF THE INSTRUMENT

%

Operation panel — Display Functions —

Display symbols: Vertical angle ±90°: % vertical angle: Tilt angle compensation

"11. CHANGING INSTRUMENT OPTIONS": Battery mark (displayed when batteries need to be replaced): gon angle units

Horizontal angle right: Horizontal angle left

Horizontal angle hold

Key Operation: Power on

＋ : Power off: Select horizontal angle display mode / vertical angle display mode

"9.3 Changing Horizontal Angle Display Mode" and"9.4 Changing Vertical Angle Display Mode "

: Lighting up the display: Set horizontal angle to 0

"9.1 Measure the horizontal angle between 2 points(H angle 0)"

: Hold / release horizontal angle"9.2 Changing Horizontal Angle Direction PROCE-DURE Horizontal angle hold"

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10. 測定モードの測定5. INSTALLING / REMOVING THE BATTERY5. INSTALLING / REMOVING THE BATTERY

Mount the charged battery.

: • When removing the battery, turn the power off.• When installing / removing the battery, make sure that moisture or dust particles do not come in contact with the inside of the instrument.

PROCEDURE

1. Open the battery cover

2. Insert 2 batteries (R14/C)The direction of the batteries is indi-cated in the battery cover.

3. Close the battery cover

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10. 測定モードの測定5. INSTALLING / REMOVING THE BATTERY

Remaining battery power : When the instrument is turned on, remaining bat-tery power is displayed for a few seconds.

3 : 90 to 100 %2 : 50 to 90 %1 : 10 to 50 %0 : 0 to 10 % Battery mark is displayed. Replace all batteries. If you continue

to use the instrument, the battery mark flashes and a beepsounds. In this status, measurement cannot be performedcorrectly.

B

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10. 測定モードの測定6. SETTING UP THE INSTRUMENT

: Mount the battery in the instrument before performing this operationbecause the instrument will tilt slightly if the battery is mountedafter levelling.

6.1 Centering

PROCEDURE

1. Set up the tripodMake sure the legs are spaced at equalintervals and the head is approximatelylevel.Set the tripod so that the head is posi-tioned over the surveying point.Make sure the tripod shoes are firmlyfixed in the ground.

2. Install the instrumentPlace the instrument on the tripodhead.Supporting it with one hand, tighten thecentering screw on the bottom of theunit to make sure it is secured to thetripod.

3. Focus on the surveying pointLooking through the optical plummeteyepiece, turn the optical plummet eye-piece to focus on the reticle.Turn the optical plummet focusing ringto focus on the surveying point.

6. SETTING UP THE INSTRUMENT

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6.2 Levelling

PROCEDURE

1. Center the surveying point in thereticleAdjust the levelling foot screws to cen-ter the surveying point in the opticalplummet reticle.

2. Center the bubble in the circularlevelCenter the bubble in the circular levelby either shortening the tripod leg clos-est to the offcenter direction of thebubble or by lengthening the tripod legfarthest from the offcenter direction ofthe bubble. Adjust one more tripod legto center the bubble.

3. Center the bubble in the plate levelLoosen the horizontal clamp to turn theupper part of the instrument until theplate level is parallel to a line betweenlevelling foot screws A and B.Center the air bubble using levellingfoot screws A and B.The bubble moves towards a clockwiserotated levelling foot screw.

4. Turn 90° and center the bubbleTurn the upper part of the instrumentthough 90°.The plate level is now perpendicularto a line between levelling foot screwsA and B.Center the air bubble using levellingfoot screw C.

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5. Turn another 90° and check bubblepositionTurn the upper part of the instrument afurther 90° and check to see if thebubble is still in the center of the platelevel. If the bubble is off-center, per-form the following:a. Turn levelling foot screws A and B

equally in opposite directions to re-move half of the bubble displace-ment.

b. Turn the upper part a further 90°, anduse levelling foot screw C to removehalf of the displacement in this di-rection.

Or adjust the plate level. “13.1 Plate Level”

6. Check to see if bubble is in sameposition in any directionTurn the instrument and check to seeif the air bubble is in the same positionin all directions.If it is not, repeat the levelling proce-dure.

7. Center the DT over the Surveyingpoint(DT500 / 500A / 600):Loosen the centering screw slightly.Looking through the optical plummeteyepiece, slide the instrument over thetripod head until the surveying point isexactly centered in the reticle.Retighten the centering screw se-curely.

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(DT500S/500AS/600S):Turn the tribrach shifting clamp coun-terclockwise.Shifting tribrach can be adjusted up to±8mm.Looking through the optical plummeteyepiece, adjust the instrument posi-tion on the tribrach to center the sur-veying point.Tighten the shifting clamp to fix the in-strument in the center position.

8. Check again to make sure thebubble in the plate level is centeredIf not, repeat the procedure startingfrom step 3.

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10. 測定モードの測定7. FOCUSSING AND TARGET SIGHTING7. FOCUSSING AND TARGET SIGHTING

PROCEDUREPROCEDURE

1. Focus on the reticleLook through the telescope eyepieceat a bright and featureless background.Turn the eyepiece clockwise, thencounterclockwise little by little until justbefore the reticle image becomes fo-cussed.Using these procedures, frequentreticle refocussing is not necessary,since your eye is focussed at infinity.

2. Sight the targetLoosen the vertical and horizontalclamps, then use the peep sight tobring the target into the field of view.Tighten both clamps.

3. Focus on the targetTurn the telescope focussing ring to fo-cus on the target.Turn the vertical and horizontal fine mo-tion screws to align the target with thereticle.The last adjustment of each fine mo-tion screw should be in the clockwisedirection.

4. Readjust the focus until there is noparallaxReadjust the focus with the focussingring until there is no parallax betweenthe target image and the reticle.

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10. 測定モードの測定7. FOCUSSING AND TARGET SIGHTING

Eliminating parallaxThis is the relative displacement of the target image with respect tothe reticle when the observer’s head is moved slightly before the eye-piece.Parallax will introduce reading errors and must be removed beforeobservations are taken. Parallax can be removed by refocussing thereticle.

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10. 測定モードの測定8. POWER ON8. POWER ON

PROCEDURE

1. Power onPress .When the power is switched on, a self-check is run to make sure the instru-ment is operating normally. Remainingbattery power is displayed for a fewseconds.

"5.INSTALLING / REMOVINGTHE BATTERY"

After that the instrument is ready forvertical and horizontal circle indexing.

• When Item NO.3 (Horizontal angleindexing) is set to "Manual", the dis-play appears as at right.

• When Item NO.2 (Vertical angle in-dexing) is set to "Manual", the dis-play appears as at right.

Manually indexing the verticalcircle by face left, face rightmeasurements: "15.1 ManuallyIndexing the Vertical Circle byFace Left, Face Right Mea-surement"

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10. 測定モードの測定8. POWER ON

2. Horizontal and Vertical circle in-dexingLoosen the horizontal clamp and ro-tate the upper part of the instrumentuntil the DT beeps for horizontal index-ing.

Loosen the vertical clamp and transitthe telescope.Indexing occurs when the objectivelens crosses the horizontal plane inface left.

When horizontal indexing and verticalindexing have been completed, the dis-play is ready for measurement.

• Out of range messageWhen the screen below is displayed on DT500/500S, the tilt sensor is indi-cating that the instrument is out of level. Level the instrument once again.When leveling is done on the screen, make sure to use Face 1. Centerboth " " in the bar.

• Set Item No.4 (Tilt correction) to "Off" or "On (V)" if the display is unsteadydue to vibration or strong wind.

"11. CHANGING INSTRUMENT OPTIONS"

Tilt angle in X direction

Tilt angle in Y direction

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10. 測定モードの測定9. MEASUREMENT9. MEASUREMENT

9.1 Measure the horizontal angle between 2 points (H angle 0)PROCEDURE

1. Sight the first target as at right.

2. Set the horizontal angle of the firsttarget to 0°.Press twice. The horizontal angleat the first target becomes 0°.

3. Sight the second target.

The displayed horizontal angle is theincluded angle between two points.

9.2 Set Horizontal Circle to a Required Value (Horizontal angle hold)Horizontal angle hold function can be used to set the horizontal angle of thesighting direction to a required angle.

PROCEDURE Horizontal angle hold

1. Turn the upper part of the instru-ment and display the horizontalangle you want to set

2. Hold the displayed anglePress twice. The horizontal angleis in hold status.

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9. MEASUREMENT

3. Set the horizontal angle that is inhold status to the direction you re-quireSight the direction that you want to setthe horizontal angle to in step 2, andpress again.The horizontal angle hold-status is re-leased.

9.3 Changing Horizontal Angle Display Mode

PROCEDURE Selecting horizontal angle display mode (Right / left)

1. Set Item No.7 ( function)Set Item No.7 ( function) to " Hori-zontal angle (Right/left)" in advance.

"11. CHANGING INSTRUMENTOPTIONS"

2. Change the horizontal angle direc-tion on measuring screenEvery time is pressed, horizontalangle right / left is switched.

9.4 Changing Vertical Angle Display Mode

PROCEDURE Selecting vertical angle display mode (Angle / slope in %)

1. Set Item No.7 ( function)Set Item No.7 ( function) to " Angle/ slope in %" in advance.

"11. CHANGING INSTRUMENTOPTIONS"

2. Change the vertical angle direc-tion on measuring screenEvery time is pressed, verticalangle / slope in % is switched.

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10. 測定モードの測定9. MEASUREMENT

9.5 Stadia SurveyThe telescope reticle is provided with stadia lines (two vertical and two hori-zontal) which can be used to measure the target distance and height differ-ence as follows:Stadia line separation = 1/100 of the focal distance.

• When the telescope is horizontalHorizontal distance between a and b : L=100 × ιHeight difference between a and b : ∆h=h1 – h2

• When the telescope is slantedHorizontal distance between a and b : L=100 × ι × sin2 θz, or

L=100 × ι × cos2 θvHeight difference between a and b : ∆h=50 × ι × sin2 θz + h1 – h2, or

∆h=50 × ι × sin2 θv + h1 – h2

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10. 測定モードの測定10. DATA OUTPUT10. DATA OUTPUT

After connecting the data output connector on the DT with a computer, the

measurement results can be output.

• This function is not included on DT600/DT600S

10.1 Connecting a Computer

Choose the right interface cable for the computer you are connecting.

� "14.2 Optional Accessories"

• Data communication

External data collection from the DT uses RS-232C baseband signals.

Synchronization : Asynchronous

Baud rate : 1200 bps

Start bit : 1 bit

Data length : 8 bits

Parity : None

Stop bit : 1 bit

• Data output connector pin assignments

Pin No. Signal name

1 ST (GND)

2 NC

3 SD (TXD)

4 RD (RXD)

5 NC

6 NC

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10. 測定モードの測定10. DATA OUTPUT

10.2 Communication Functions Command and Output

• Formats for standard commands

Every time the command below is sent to the DT, a measurement result is

output.

00H

• Format of output data

Measurement results are output in the following formats to a computer. "–"

means space (20H).

0855580 – 1206540 – CR LF

a b

a) Horizontal angle

b) Vertical angle

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11. CHANGING INSTRUMENT OPTIONS11. CHANGING INSTRUMENT OPTIONS

The following items can be changed to meet your measurement requirements.• "∗" : Factory setting

Item NO. Parameter Options Display

1 Vertical angle display Zenith0°*mode

" Vertical angledisplay mode"

Horizontal 0°

Horizontal ±90°

2 Vertical angle indexing Auto*

Manual

3 Horizontal angle Auto*indexing

Manual

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11. CHANGING INSTRUMENT OPTIONS


4 Tilt correction On (H, V) *(only DT500/500S)

On (V)

Off

5 Auto power cut-off On (instrumentpowers off if notused for 30 min.)*

Off

6 Reticle illumination Bright*(only DT500/500S/500A/500AS)

Dim

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7 function Horizontal angle(Right/left)*

Angle / slope in %

8 Minimum display DT500:1 " ( 0 . 2 m g /0.005mil)*DT600:5"(1mg/0.02mil)

DT500:5"(1mg/0.02mil)DT600:1 0 " ( 2 m g /0.05mil)*

9 Unit Degree*

gon

mil

10 Instrument constant"13.3 Tilt Sensor"

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Item NO.Options

Vertical angle display method

PROCEDURE Changing the settings

C : Repeat step 1 to 4 for every item setting.

1. Display the Item screenPress and at the same timeto display the Item screen.

2. Select the item you want to changePress until the item you want tochange is displayed. Details of theitems are explained in the table above.

3. Select the optionPress until the option you want toselect is displayed. Details of the itemsare explained in the table above.

4. Set the optionPress and at the same timeto set the selected option. The mea-suring screen is restored.

Zenith Vertical Vertical ±90°

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10. 測定モードの測定12. ERROR MESSAGES12. ERROR MESSAGES

If there is a fault in the DT, the following messages are displayed.

Display messages Meaning

E100 Horizontal circle is turned too fast to measure thevalue.Index the horizontal circle again.

E101 Vertical circle is turned too fast to measure the value.Index the vertical circle again.

The tilt of the instrument exceeds the tilt anglecompensation range during measurement.Level the instrument again.

(only DT500/DT500S)

• Error messages starting with "E" indicate trouble with the instrument. Con-tact your Sokkia agent.

If an error occurs when measurement results are being output, the followingcodes are displayed on the computer. (Only DT500/DT500S)

Coded messages Meaning

E114 Out of tilt compensation range (– direction of Y-axis).Level the instrument again.

E115 Out of tilt compensation range (– direction of X-axis).Level the instrument again.

E116 Out of tilt compensation range (+ direction of Y-axis).Level the instrument again.

E117 Out of tilt compensation range (+ direction of X-axis).Level the instrument again.

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10. 10. 10. 10. 10. 測定モードの測定測定モードの測定測定モードの測定測定モードの測定測定モードの測定13. CHECKS AND ADJUSTMENTS13. CHECKS AND ADJUSTMENTS

A DT is a precision instrument that requires fine adjustments. It must beinspected and adjusted before use so that it always performs accurate mea-surements.• Always perform checking and adjustment in the proper sequence begin-

ning from "13.1 Plate Level" to "13.5 Optical plummet."• In addition, the instrument should be inspected with special care after it

has been stored a long time, transported, or when it may have been dam-aged by a strong shock.

13.1 Plate LevelThe bubble tube is made of glass, so it is sensitive to temperature changesor to shock. Check and adjust it as outlined below.

PROCEDURE Checking and adjusting

1. Level the instrument and checkthe position of the bubble of theplate level.

"6.2 Levelling," steps 3 to 5.

2. Turn the upper part through 180°and check the bubble position.If the bubble is still centered, no ad-justment is necessary.If the bubble is off-center, adjust as fol-lows.

3. Correct half of the bubble dis-placement using levelling footscrew C.

4. Correct the remaining half of thedisplacement by using the adjust-ment pin to rotate the plate leveladjustment screw.When the plate level adjustment screwis tightened in the counterclockwise di-rection, the bubble moves in the rightdirection.

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10. 10. 10. 10. 10. 測定モードの測定測定モードの測定測定モードの測定測定モードの測定測定モードの測定13. CHECKS AND ADJUSTMENTS

5. Rotate the top of the instrumentand continue adjustments untilthe bubble remains centered forany position of the upper part.If the bubble does not move to the cen-ter even when the adjustment has beenrepeated, have your Sokkia agent ad-just it.

13.2 Circular Level

PROCEDURE Checking and adjusting

1. Perform the plate level inspectionand adjustment.

"13.1 Plate Level"

2. Check the position of the bubbleof the circular level.

"6.2 Levelling," steps 1 to 2.If the bubble is not off-center, no ad-justment is necessary.If the bubble is off-center, perform thefollowing adjustment.

3. First confirm the off-center direc-tion.Use the adjusting pin to loosen the cir-cular level adjustment screw on theside opposite to the direction thebubble is displaced to move the bubbleto the center.

4. Adjust the adjusting screws untilthe tightening tension of the threescrews is the same to align thebubble in the middle of the circle.

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:Be careful that the tighteningtension is identical for all theadjusting screws.Also, do not over-tighten theadjusting screws as this maydamage the circular level.

13.3 Tilt SensorIf the tilt angle shown on the display shifts from tilt angle 0 (zero point), theinstrument is not correctly levelled. This will adversely affect angle measure-ment.Perform the following procedure to cancel the tilt zero point error.

• Only DT500/DT500S include a tilt sensor function. Set Item NO.4 (Tiltcorecction) to "On (H, V)" or "On (V)" beforehand.

"11. CHANGING INSTRUMENT OPTIONS"

PROCEDURE Check

1. Carefully level the instrument. Ifnecessary, repeat the proceduresto check and adjust the bubblelevels.

2. In the Item display, select ItemNo.10 (Instrument constant)Press and at the same time,to display the Item screen, and selectItem No.10 (Instrument constant). Cur-rent correction constant is displayed.

3. Accurately sight a clear target inface left.

4. Wait a few seconds for the displayto stabilize, then read the auto-matically compensated angles X1and Y1.

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5. Rotate the top of the instrumentthrough 180° and sight the sameobject in face rightLoosen the horizontal clamp and turnthe instrument 180°, sight the object,then retighten the clamp.


7. In this state, calculate the follow-ing offset values (tilt zero pointerror).X offset = (X1 + X2)/2Y offset =(Y1 + Y2)/2If one of the offset values (X offset, Yoffset) exceeds ±20", adjust the valueusing the following procedure.When the offset value falls within therange ±20", adjustment is not neces-sary. Press and at the sametime to return to the measuring screen.

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PROCEDURE Adjustment

8. Store values X2 and Y2Press to store the values.

9. Rotate the top of the instrumentthrough 180° and sight the sameobject accurately

10. Wait a few seconds for the displayto stabilize, then store values X1and Y1. Press to store the values. Thenew correction constant is displayed.

11. Confirm that the values are in theadjustment rangeIf both correction angles are within therange 444±33, press to renew thecorrection angle. Go to step12.

If the value exceeds the adjustmentrange, stop the adjustment and con-tact your Sokkia agent to perform theadjustment.

PROCEDURE Recheck

12. In the Item display, select ItemNo.10 (Instrument constant) again

13. Wait a few seconds for the displayto stabilize, then read the auto-matically compensated angles X3and Y3

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14. Rotate the top of the instrumentthrough 180° and sight the sameobject in face right


16. In this state, calculate the follow-ing offset values (tilt zero pointerror).X offset = (X3+ X4)/2Y offset =(Y3 + Y4)/2

When the offset value falls within therange ±20", adjustment is completed.Press and at the same timeto return to the measuring screen.

If one of the offset values (X offset, Yoffset) exceeds ±20", repeat the checkand adjustment procedure from thebeginning.If the difference continues to exceed±20" after repeating the check 2 or 3times, have your Sokkia agent performthe adjustment.

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13.4 Reticle

PROCEDURE Check 1: Perpendicularity of the reticle to the horizontal axis

1. Carefully level the instrument.

2. Align a clearly visible target (theedge of a roof for example) onpoint A of the reticle line.

3. Use the telescope fine motionscrew to align the target to pointB on a vertical line.If the target moves parallel to the verti-cal line, adjustment is unnecessary. Ifits movement deviates from the verti-cal line, have your Sokkia agent adjustit.

PROCEDURE Check 2: Vertical and horizontal reticle line positions

1. Install a target at a point about100m in the horizontal directionfrom the DT.

2. Level the instrument carefully,turn on the instrument's powerand index the vertical and horizon-tal circles.

3. While the Meas mode screen isdisplayed and the telescope is inface left, sight the center of thetarget and read out the horizontalangle A1 and the vertical angle B1.Example: Horizontal angle A1=18° 34' 00"

Vertical angle B1=90° 30' 20"

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4. While the telescope is in face right,sight the center of the target andread out the horizontal angle A2and the vertical angle B2.Example: Horizontal angle A2=198° 34' 20" Vertical angle B2=269° 30' 00"

5. Do the calculations:A2-A1 and B2+B1If A2-A1 is within 180°±40″andB2+B1 is within 360°±40″, adjustment is unnecessary.Example: A2-A1 (Horizontal angle)

=198° 34' 20"- 18° 34' 00"=180° 00' 20"B2+B1 (Vertical angle)=269° 30' 00" + 90° 30' 20"=360° 00' 20"

If the difference is large even after re-peating the check 2 or 3 times, haveyour Sokkia agent perform the adjust-ment.

13.5 Optical plummet

PROCEDURE Checking

1. Carefully level the DT and centera surveying point precisely in thereticle of the optical plummet.

2. Turn the upper part through 180°and check the position of the sur-veying point in the reticle.If the surveying point is still centered,no adjustment is necessary.If the surveying point is no longer cen-tered in the optical plummet, performthe following adjustment.

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PROCEDURE Adjustment

3. Correct half the deviation with thelevelling foot screw.

4. Remove the optical plummetreticle cover.

5. Use the 4 adjusting screws of theoptical plummet to adjust the re-maining half of the deviation asshown below.When the surveying point is on theupper or lower part of the illustration:Loosen the upper (lower) adjustingscrew slightly, and tighten the upper(lower) adjusting screw the sameamount to move the surveying point toa point directly under the center of theoptical plummet.(It will move to the line in the figure onthe right.)

If the surveying point is on the solid line(dotted line):Loosen the right (left) adjusting screwslightly and, tighten the left (right) ad-justing screw by the same amount tomove the surveying point to a point inthe center of the optical plummet.

: Be extremely careful to adjust all the adjustment screws by thesame amount so that none will be over-tightened.

1 (2)

2 (1)

4 (3)

3 (4)

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6. Check to make sure that the sur-veying point remains centered onthe reticle even if the upper partof the instrument is rotated.If necessary, perform the adjustmentagain.

7. Replace the optical plummetreticle cover.

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10. 10. 10. 10. 10. 測定モードの測定測定モードの測定測定モードの測定測定モードの測定測定モードの測定14. STANDARD EQUIPMENT AND OPTIONAL ACCESSORIES14. STANDARD EQUIPMENT AND OPTIONAL ACCESSORIES

14.1 Standard EquipmentPlease verify that all equipment is included.

1 DT main unit ......................... 12 R14/C manganese battery .... 23 Lens cap ............................... 14 Lens hood ............................. 15 Plumb bob ............................. 16 Tool pouch ............................ 17 Screwdriver ........................... 1

8 Lens brush ............................ 19 Adjusting pin ......................... 210 Cleaning cloth ....................... 111 Operator's manual ................ 112 Carrying case (SC181) ......... 113 Carrying straps ...................... 1

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10. 10. 10. 10. 10. 測定モードの測定測定モードの測定測定モードの測定測定モードの測定測定モードの測定14. STANDARD EQUIPMENT AND OPTIONAL ACCESSORIES

Plumb bobThe plumb bob can be used to set upand center the instrument on dayswhen there is little wind. To use theplumb bob, unwind its cord, pass itthrough the cord grip piece as shownin the figure to adjust its length, thensuspend it from the hook attached tothe centering screw.

HandleThe carrying handle can be removedfrom the instrument. To remove it,loosen the handle securing screw.

14.2 Optional AccessoriesThe following are optional accessories which are sold separately from the DT.

Tubular compass (CP7)Slide the tubular compass into the tubularcompass slot, loosen the clamp screw,then rotate the top part of the instrumentuntil the compass needle bisects the in-dex lines. The telescope's face left sight-ing direction in this position will indicatemagnetic north. After use, tighten theclamp and remove the compass from theslot.

: The tubular compass is susceptible to the influence of nearbymagnets or metal. Such influence could cause it to fail toaccurately indicate magnetic north. Do not use magnetic northas indicated by this compass for base line surveying.

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10. 10. 10. 10. 10. 測定モードの測定測定モードの測定測定モードの測定測定モードの測定測定モードの測定14. STANDARD EQUIPMENT AND OPTIONAL ACCESSORIES

Telescope eyepiece lens (EL6)Telescope eyepiece lens for DT600Magnification: 30X

Diagonal eyepiece (DE25)The diagonal eyepiece is convenientfor observations near the nadir and innarrow spaces.Magnification: 30XAfter removing the handle from the DT,loosen the attachment screw to removethe telescope eyepiece. Then screwthe diagonal lens into place.

For handle removal method: "14.1 Standard Equipment"Interface cableConnects between the DT and a computer for data output.Computer Cable Notes

IBM PC/AT DOC26 Length: 2mor compatible Pin Numbers and signal levels: RS-232C

DOC27 compatibleD-sub connector: DOC26: 25 pins (female)

DOC27: 9 pins (female)Other personal DOC1 No connector for attachment to a computer.computers

14.3 Layout PlanThe following numbers indicate the equipment listed in "14.1 Standard Equipment".

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10. 測定モードの測定15. APPENDICES15. APPENDICES

15.1 Manually Indexing the Vertical Circle by FaceLeft, Face Right Measurement

The 0 index of the vertical circle of your DT is almost 100% accurate, butwhen it is necessary to perform particularly high precision angle measure-ments, you can eliminate any inaccuracy of the 0 index as follows.

: If the power is cut off, the vertical circle indexing is ineffective.Repeat circle indexing every time the power is turned on.

PROCEDURE

1. Set Item No.2(Vertical angle index-ing)Set Item No.2 (Vertical angle indexing)to "Manual".

2. Go to the measuring screen"1" is displayed in "V".

3. Carefully level the instrument

4. Accurately sight a clear target witha distance of about 30m in thehorizontal direction with the tele-scope in face leftSight the target and press twice."2" is displayed in "V".

5. Rotate the top of the instrumentthrough 180° and sight the sameobject in face rightSight the object and press twice.In "V", vertical angle is displayed.This concludes the vertical circle index-ing procedure.

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10. 測定モードの測定15. APPENDICES

15.2 Battery SelectionChoose batteries according to the temperature where you use the DT.

• Manganese batteries work well in normal temperatures, but alkaline bat-teries normally last longer than the other types.

• The life expectancy of a battery is adversely affected by low tempera-tures.

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10. 測定モードの測定16. SPECIFICATIONS16. SPECIFICATIONS

Except where stated, the following specifications apply to all DTs. "DT500"means DT500/DT500S/DT500A/DT500AS and "DT600" means DT600/DT600S here.

TelescopeLength: DT500: 165mm

DT600: 160mmAperture: DT500: 45mm

DT600: 35mmMagnification: DT500: 30X

DT600: 26XImage: ErectResolving power: DT500: 3"

DT600: 3.5"Field of view: 1°30'Minimum focus: 0.9mReticle illumination: Bright or dim (Selectable with parameter)(only

DT500)Stadia ratio: 1:100Additive constant: 0

Angle measurementHorizontal and Vertical circles type:

Increment with 0 indexMinimum display: DT500: 1" (0.2mg/0.005mil)/5" (1mg/0.02mil)

DT600: 10" (2mg/0.05mil)/5" (1mg/0.02mil)(Selectable with parameter)

Accuracy: DT500: 5" ISO/DIS 12857-2 (1995)DT600: 7" ISO/DIS 12857-2 (1995)

Measuring time: Less than 0.5 secAutomatic compensator: On (H & H/V) / Off (Selectable with parameter)

(only DT500/DT500S)Type: Liquid 2-axis tilt sensorMinimum display: Agrees with minimum displayed measurement angleRange: ±3'

Measuring mode:Horizontal angle: Right/Left (Selectable with parameter)Vertical angle: Zenith, Vertical, Vertical±90°(Selectable with parameter)

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10. 測定モードの測定16. SPECIFICATIONS

Power SupplyPower source: Battery type: R14 / C × 2Working duration : DT500/DT500S: about 13 hours

DT500A/DT500AS/DT600/DT600S: about 23hours(with R14/C manganese batteries at 25°C)

GeneralDisplay: LCD (2 rows: 8-digits each) display with illumi-

nation120dots × 64dotsDT500/DT500S: 1 LCD graphic display on

each faceDT500A/DT500AS/DT600/DT600S:

1 LCD graphic displayAuto power-off: On (instrument powers off if not used for 30 min.)/

Off (selectable with parameter)Data output: asynchronous serial, RS232CSensitivity of levels: Plate level: DT500: 40"/2mm

DT600: 60"/2mmCircular level: 10'/2mm

Optical plummet Image: ErectMagnification: 3×Minimum focus: 0.3m (from base plate)

Operating temperature: –20 to 50°CStorage temperature: –30 to 70°CWater and dust resistance: IP66Instrument height: 236mmSize: 165(W) × 165(D) × 341(H)mm (with handle)Weight: DT500/DT500AS/600S: 4.7kg

DT500A: 4.6kgDT500S: 4.8kgDT600: 4.2kg

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10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è17. REGULATIONS17. REGULATIONS

Radio Frequency Interference

WARNING: Changes or modifications to this unit not expressly approved bythe party responsible for compliance could void the user's authority to oper-ate the equipment.

NOTE: This equipment has been tested and found to comply with the limitsfor a Class A digital device pursuant to Part 15 of the FCC Rules. Theselimits are designed to provide reasonable protection against harmful inter-ference when the equipment is operated in a commercial environment. Thisequipment generates, uses, and can radiate radio frequency energy and, ifnot installed and used in accordance with the instruction manual, may causeharmful interference to radio communications. Operation of this equipment ina residential area is likely to cause harmful interference in which case theuser will be required to correct the interference at his own expense.

Notice for CanadaThis Class A digital apparatus meets all requirements of Canadian Interfer-ence-Causing Equipment Regulations.Cet appareil numérique de la Class A respecte toutes les exigences duRèglement sur le matériel brouilleur du Canada.

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10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è17. REGULATIONS

CE Conformity Declaration

48

10. ‘ª’èƒ‚•[ƒh‚Ì‘ª’è17. REGULATIONS

MEMO

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