Sokkia SDM3E Operation Manual

l

I:,

CONTENTS

I FEATURES ..................................................................... 2

II SPECiFiCATIONS..:.:.................. ............ ......................... 2

1. Distance measuring....................................................... 2

2. Angle measuring. .......................................................... 4

III EXPLANATION OF PARTS .............................................. 5

IV STANDARD SET.............................................................

\' OPERATION..... .... .... ..... ............................... ........ ........ "17

1. Setting up the SDM3E ............................................ ""..17

(

~

. (1) Setting up the tripod................................................. 17

(2) Center the SDM3E by adjusting leg length .................I!!

. (3) Centering with the plumb bob ...................................20

(4) Focusing of the telescope ..........................................20

1 I

(5) Sighting'" ............ .................................................... '21

(6) Swivel

lever ..............................................................22

2. Measuring angles..... ............................................... ......23

(1) Horizontal and vertical circle reading .........................23

(2) Horizontal angle measurement ...................................25

(3) Zenith angle measurement............................;............2!!

(4) Vertical angle............................................................ 29

3. Distance measurement ..................................................30

(1) Preparation..... ..........................................................30

(2) Measuring the slope distance.....................................33

(3) Keyboard operation ................ ..................... ......... .....34

(4) Mode of measurement ..............................................42

(5) To recall data ..:.........................................................59

VI CORRECTIONS ..................... .............................. ........... '60

1. Prism constant..............................................................60

. 0 .. .". .

~WiY,;¡(t~:l"'...;.

2. Earth-curvature and refraction correction ......................60

3. Atmospheric correction .................................................61

\'I INTERNAL BATTERY No.6850-01...................................63

1. Specifications ...............................................................63

2. Handling' ..................................................................... '63

3. Precautions......................................................... ..........64

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VII BATTERY CHARGER No.6855-01 FOR THE INTERNAL BATTERY65

1. Specifications ................................................................65

2. Handling ................ .... ............. .......................... ........ ....65

3. Precautions................................................................. .66

IX OPTIONAL ACCESSORIES..............................................67

1. Power source system for the SDM3E ............................67

(1) 1 hour quick charger No.6855-02 .............................68

(2) 1 hour car battery charger No.6855-03 ....................69

(3) External battery converter No.6860-01 .....................71

(4) AC power adaptor No.6861-01 ..............................72

(5) Cable to cigar lighter No.6860-05 .............................73

(6) Cable to car battery No.6860-03 ..............................74

2. Diagonal eyepiece .........................................................75

X CHECKS AND ADJUSTMENTS ....................................76

1. Angle measuring function ..............................................76

(1) Plate level................................................................. 76

(2) Circular level.............................................................78

(3) Inclination of the reticle .............................................78

(4) Vertical reticle line ....................................................79

(5) Horizontal reticle line.................................................81

(6) Coincidence of the distance measuring

axis with the reticle ...................................................82

(7) Optical plummet......................... ...... ...... ......... .......... 83

2. Distance measuring function ..........................................84

(1) Self-diagnosis .........................................................84

(2) Check flow chart.......................................................

86

XI CONFIRMATION OF DISTANCE CONSTANT-...................87

XII PRECAUTIONS AND MAINTENANCE .............................88

1. Precautions ................. ............ ............. ....... .................. 88

2. Maintenance........... ........................ .............................. 89

ATMOSPHERIC CORRECTION TABLE(English) ......................90

ATMOSPHERIC CORRECTION TABLE(Metric)........................91

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FEATURES

.

Distance and angle measuring functions are synthesized in the

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SDM3E. Accurate and rapid operation can be executed with

I

the SDM3E.

i

.

Horizontal dist~nce.height difference and coordinate are com-

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puted and displayed by keying in angle.

.

Successive and tracking measurement as well as stake-out can

I

be selected.

¡

.

The telescope can be plunged to either direction, enabling the

¡ ,

user to observe both faces, easily.

l

.

Adjustment of light intensity is not necessa¡y.

'L

.

Incoming reflection from prism(s) is confirmed by light value

lamp or buzzing sound.

.

All the necessary information is displayed.

.

Function to output the measured data is provided.

.

Corrections for earth-curvature and refraction are carried out

automatically.

.

The SDM3E's power source is cut off two minutes after its last

operation. This saves battery capacity.

..

A convenient handle is provided for easy transportation.

II SPECIFICATIONS

1. Distance measuring

Range:

I-prism 35 to 3,900ft ( 10 to l.00m)

3-prism 35 to 5,900ft(JO to I,SOOm)

(under good atmospheric conditions)

:t (5mm + 5ppm 'D)

LED 8-digit

Maximum slope distance

6.561.66ft (1.999.999m)

Successive 0.0 1ft (J mm)

Tracking 0.1 ft (1 Omm)

Standard deviation:

Display:

Minimum count:

2

'--_. .'. .-. ~---,~ ~"---'-"'-""---_._-___-:

:;

e:

Mode

.-..

-_. ..

Succesive Tracking

.. "'-" '-'_.._, , '-

~!?IJ,e_,!i,stance_, __~

4s + every 0.3s

. --

-

Horizontal distance:

4s + every O.4s

Height difference

4s

-----.--.- -.

"

X coordinate

i

Y coordinate

I

4s + every 0.5s

,

Measurement tim

Atmospheric correction:

Reflecting prism constant:

Audio target acquisition:

Signal source:

Output of data:

Light intensity control:

Self-diagnostic function:

Battery check:

Power saving cut off:

Earth-curvature and

refraction correction:

Temperature:

Power source:

Working duration

Charging time

- 99 to +I99ppm (lppm step)

o to -9cm (Icm step)

Continuous sound; measurement OK

Intermittent sound; to confirm input

and display measurement

LED

RS-232-C

Automatic

Provided
Provided

2 minutes after operation

Provided

-4 to +I22°F (-20 to +50°C)

NiCd battery, 6V, detachable

I hour at nOF (25°C)

12 hours, standard charger

No.

6855-01

(1 hour, optional charger No.6855-02)

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II EXPLANATION OF PARTS

Refer to Fig. I. page I.

o Handle

f) Battery case cover

ê Connector

Used for data output.

Ð Instrument height mark

o Illumination slot

o Reflector

Ð Peep sight

e 00 index

When the circle positioning ring æ is turned until the 00

button on the ring comes directly below the 00 index, 00

graduation is seen through the micrometer eyepiece.

o 00 button

This shows the location of 00 graduation of the horizontal

circle.

æ Lower fine motion

CD leveling screw

æ Tribrach

æ Clamp screw of swivel

lever

Loosen the clamp screw immediately after you receive the

instrument.

æ Swivel lever

When this is given half a turn in an anticlockwise direction, it

is possible to lift the main body from the tribrach.

æ Base plate

d\ lower clamp

4D Circular level adjusting screw

The circular level adjusting screws can be turned with the

adjusting pin to center the circular level bubble.

Gi Circular level

., Circle positioning ring

When the lower clamp CD and horizontal clamp 0 are

loosened, the horizontal circle can be turned with the ring.

tI Eyepiece for optical plummet

Turn the eyepiece to focus on the reticle.

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Adjusting screw for the reticle

Objective lens

Opening for external battery converter No. 6860-01

Battery case

Battery cover clamp

Used to mount or dismount battery No. 6850-01 or external

battery converter No. 6860-0 I.

Prism constant Cover

When the cover is removed with a coin. prism constant setter

and earth-curvature refraction switch are accessible. See page

60.

Micrometer eyepiece

Numbers on the both circles arc focused by turning the eye-

piece. See page 23.

Micrometer knob

See page 23.

Plate level adjusting screw

See page 77.

~ Tubular compass slot

m Horizontal fine motion

G Horizontal clamp

~ Plate level

ai Vertical fine motion

G Vertical clamp

~ Start-stop switch

A push of the switch starts or stops distance measurement.

Telescope eyepiece

The reticle is focused by turning the eyepiece, see page 20.

Reticle adjustment cover

See page 79.

Focusing ring

To focus on a target.

~ Display

· Measured value is displayed.

· Keyed-in numbers (Le. angle or stake-out data) are dis-

played.

· Unit of'

measurement, prism constant and atmospheric

correction factor are displayed.

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Example:

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- 3 -'~ is displayed when ~ key is pressed.

L'r- L____. atinospheric correction factor; + 45 ppm

i '-.. --, prism constant; - 3cm

unit of measurement; feet

Necessary information is displayed:

.

loooooooolJ

: Shows display tunction and microcomputer

1* * * * * * * *1 works normally.

5

JJ I 5 TI

; Before slope distance is measured.

H

JJ I 5 TI ; Before horizontal distance is measured.

V

JJ I 5 TI

; Before height difference is measured.

IX/N

JJ I 5 TI

: Before X coordinate is measured.

IY/E

JJ I 5 TI ; Before Y coordinate is measured.

15-0

****1

: When the

~

key is pressed.

15-0

5

; Before slope distance for stake-out is

measured.

15-0

H

; Before horizontal distance for stake-out

is measured.

15-0

V

: Bl-ore height difference for stake-out is

measured.

15-0

X/N : Before X coordinate for stake-out is

measured.

15-0

Y/E

: Before Y coordinate for stake-out is

measured.

IRCL

**~ : When the

i;

key is pressed.

IRCL

5 : Before stored slope distance is recalled.

,

IRCL

H : Before stored horizontal distance is recalled.

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IRCL

IRCL

IRCL

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IE 0 3

4D Power switch

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LOWI

CON lJl

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: Before stored height difference is recalled.

Before stored X coordiiiate is recalled.

: Before stored Y coordinate is recalled.

: When the ~ key is pressed.

: When the ~ key is pressed.

: When the ig key is pressed.

: When the operation to display horizontal,

zenith angle and stake-out data is dis'

continued or finished.

: When no operation was done for more than

10 seconds.

: When no light comes back from the

reflecting prism, before distance measuring.

When the reflected light from the prism was

interrupted for more than 5 seconds.

: When the battery voltage is too low.

: When atmospheric conditions are not suitable

for distance measuring.

: When distance measuring function is

not working properly.

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Fig.

2

Two functions are provided for the keys.

¡. CD To change the sign of keyed-in numbers.

ll . (2) To recall distance data.

GI . CD To key in "5"

~ . (% To measure distance for stake-out.

f' . ú)

~'ø

f'. CD

~'ø

To key in "6".

To measure slope distance.

To key in "7".

To measure horizontal distance.

~

. CD

To key in "8".

'ø

To measure height difference.

~

CD

To key in "9".

'ø

To measure Y coordinate.

~

CD

To clear keyed-in numbers.

'ø

To measure X coordinate.

fC CD To discontinue recallng or keying in data.

~ : ø To

discontinue distance measurement.

Q .CD

ll ø

No function

To display unit of measurement, prism constant and

atmospheric correction factor.

íD . CD To key in "0".

ll . ø To key in zenith angle.

f' . CD To key in "I".

~ . ø To key in horizontal angle.

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"':~~'.l:.~;-.;-':-t~"'-;.:.:-'" ;'-',;~..~-.

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CD

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CD

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CD

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. CD

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. CD

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To key in "2".

To key in stake-out data.

To key in "3".

No function.

To key in "4".

No function.

To key in decimal point.

No function.

No function,

Press the key when keying-in is over.

Q) Audio target acquisition switch

ON and OFF switch for buzzer circuit.

Gl ft/m switch

Switching between feet and meter unit of measurement.

~ Mode switch

Switching between successive and tracking measurement.

4D ppm setter

Obtain atmospheric correction (page 6 I ), and set the value.

4D Light value lamp

The lamp is ON when the light value is adequate.

EE Gun sight

To introduce the target into the field of view.

10

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IV STANDARD SET

Fig.

3

SDM3E main unit. . . . .

Internal battery

No.

6850-01 ........

Battery charger

No.

6855-01 ........ 1

Illumination package . .. 1

Tubular compass ..... 1

Lens cap . . . . . . . . . .. 1

Lens hood . . . . . . . . " 1

Vinyl cover . . . . . . . .. 1

Tool bag. . . . . . . . . .. 1

Screwdriver. . . . . . . .. i

Lens brush ......... i

Adjusting pin . . . . . . .. 2

Electric light bulb. . . " 1

Silicone cloth. . . . . . .. 1

A tmospheric correction

table ............. 1

Layout . . . . . . . . . . .. i

Operation manual . . . " 1

Carring case . . . . . . .. i

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11

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Round Out Your Lietz EDM System with these Accessories

ROUND RETRO PRISMS

For use with all EDM systems re-

commending round retro prisms.

Each prism is in a protective con.

tainer which can be quickly detach-

ed from its metal mount. Lietz's

standard prism offset for both

triple and single assem blies is

-30 mm. Triple mount sides are

threaded permitting assembly of

multiple mounts without any

special brackets.

POCKET-SIZE RETRO PRISM

w/tilting mount

No. 7268-32

_!il

~"" '.

SINGLE ROUND TILTING PRISM

MOUNT only

No. 7269-34

12

SIGHTING TARGET FOR RETRO

PRISM

Adjustable height target with 5/8 x.

i i mounting stud. Black anodized

aluminum.

*

No. 7270-29 I

TRIPLE PRISM assembly

with mount and sii;hting pole.

(Pole not ilustrated)

No.

7270-31

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,,'i /'f. '

-, I ~ ..'\ ,-

, .~

SINGLE PRISM assembly

with mount and sighting pole.

(Pole not ilustrated)

No. 7270-32

1t

t.

'------ '-._'--._~ --, '-,_..~ ---~~~~-,-- ,- ---'.._.--~- ._-"-"_._,.~-

-.~

TRIPLE MOUNT only

No. 7270-33

SINGLE MOUNT only

No. 7270-34

ROUND PRISM

w/container only (shown in assem.

blies)

No. 7270-35

RETRO PRISM CARRYING

CASES

Vinyl plastic carrying case w/full

zipper for easy access and storage.

Inside padded. Exterior is bright

international orange color. Sizes for

single or triple retro prisms.

No. 7270-51 Triple retro prisms

No. 7270-52 Single retro prisms

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LIETZ SIGHTING TARGET SET

No. 7311-45 contains one each of

the following:

7269-34 Single Round Tilting

Prism Mount

7270-35 Round Prism w/container

7270-29 Sighting Target for Retro

Prism

7311-38 Tribrach Adaptor w/re-

movable, rotatable center

7311-35 Optical Plummet Tribrach

4.

~...

g

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13

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TRIBRACHS AND ADAPTORS

OPTICAL PLUMMET TRIBRACH

For precision plumbing. Has circu.

lar level vial with sensitivity of 10

minutes per 2 mm.

Optical plummet focus by push-pull

slide. Range: 1.5 to 50 fi.

No.

7311-35

TRIBRACH LEVELING BASE

Same as above but without optical

plummet.

For use with Azimuth Base

(7150-41).

No.

7311-34

~ _._~--~ _. ~ -.- - ,..., ". ,_._. .~---~-, - --'.- . -- . ,----.--- .- -- --

14

TRIBRACH ADAPTOR

Allows installation of retro prism or

other accessories into tribrach.

5/8 x 11

thread,

No.7311-37

.

TRIBRACH ADAPTOR

Similar to above except with re-

movable, rotatable center.

No. 7311.38

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TRAVERSE SET

WITH CARRYING CASE. For

precise triangulation surveys.

day or

night.

No. 7312.45 Set contains two each

of the following:

7311.35 Optical Plummet Tribrachs

7311-37 Tribrach adaptors

7312.39 Ilumination units

7312.40 Rotatable sighting targets

mounted on a base

2S

-.~f-

~;J '.

-._

Exploded

view

.

:..~ :~

.~

r=, . .',

.-,.i~...., ". .... .'

...-'... .'"

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LARGE TARGET

Large target 8 'I" x I I *" attaches to

regular target (No. 73 I 2-40) to pro-

vide increased sighting range.

No.

7312-42

RANGE PLUMBING POLE

Aluminum tubing and brass fittings

with hardened steel point. Height

adjusts from 54" to 100". Upper

section mounting stud accepts single

or triple retro prisms; locking disc

prevents prism rotation. Includes

replaceable rod level (No.8071-90).

No. 7270-48

-

---

TELESCOPING RANGE

PLUMBING POLE

Ideal for EDM and traverse

work. Made of quality alumi-

num tubing with brass fittings

and hardened steel point.

Positive chuck style twist lock

permits height adjustment

from 54" to 100". Replace-

able rod level (No. 807 1-90)

and point (No. 8078-50).

Upper section has 5/8 x i i

mounting stud to accept single

or triple retro prisms.

No. 7270-46

iS

)

TR IPODS

Tripods recommended for use with

these accessories (not included in

price);

No. 7512-52 Wide Frame,

Extension Leg (wood)

No. 7536-75 Wide Frame,

Extension Leg (aluminum)

RANGE POLE SUPPORT

Made with metal center castings,

rustproof steel legs w/one adjustable

(hinged) leg for uneven ground.

No. 8078-90

"

...

"

.,

RANGE POLE TRIPOD

Heavy-duty. Made with metal

center castings. Rustproof steel legs,

adjustable for uneven ground.

No. 8078-95

,

16

POCKET THERMOMETER

Refilabk nlll.11 case. Mercury

filled. Range:-30° to 120°1- in r

increments.

NO.8006-12_:._~

~~

BAROMETER/ AL TIM ETER

with watch-type case.

English-Range 0-15,000 ft.

No.

8001.70

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1

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V OPERATION

1. Setting up the SDM3E

(I) Setting up the tripod

I) Loosen wing nuts A.

A

Fig.

4

2) Keep tripod closed and raise the tripod head to about chin

leveL. Tighten wing nuts A.

3) Spread the tripod legs so that the three shoes form an

equilateral triangle and the tripod head is positioned

directly over the surveying point.

4) Make sure that: i. the tripod head is approximately

level, 2. the tripod shoes are firmly fixed in the ground.

Fig.

5

If the ground is not solid enough, drive wooden stakes on

which shoes are set.

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17

)

ii

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,

(2) Center the SDM3E by adjusting leg length

I) Set the SDM3E on the tripod head. Support the instru-

ment with one hand and screw the centering screw into

the tribrach female thread, Tighten the centering screw.

Centering screw

Fig.

6

2) Turn the optical plummet eyepiece fI to focus on the

reticle. Then push or pull the eyepiece to focus on the

surveying point.

;.

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3) Turn the leveling screws

point in the reticle.

1 Surveying point

2 Sighting position

3 Leveling screw

4 Look through the optical

plummet and center the sur-

veying point by turning the

leveling screws.

5 Extend the legs.

6 The bubble should be cen-

tered by extending or

shortening any of the three

tripod legs.

3

4D to center the surveying

Optical plummet

$

l 4

$~5

l 6

$

5. . .~

Fig.

8

4) Now look at the circular level 4D _ Observe the off cen-

ter direction of the bubble. Shorten a leg nearest to the

direction, or extend a leg farthest from the direction.

Generally, two legs have to be adjusted to center the

bubble.

5) When centering of the circular level is completed, turn the

leveling screws to center the plate level CI bubble.

!l(:~'.- ~_. ..- h . -, _, .'

19

)

t, ,

6) Look through the optical plummet again. If the surveying

point is off-center. loosen the centering screw to center

the surveying point on the reticle. Tighten the centering

screw.

(3) Centering with the plumb bob

If the weather is calm, it is possible to use the plumb bob for

centering. Unwind the plumb bob cord and attach it to the

hook inside the centering screw. Use the cord grip piece to

adjust cord length. ,

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9

(4) Focusing of the telescope

I) Loosen the vertical ~ and horizon tal clamp K-

Bring the target into the field of view with the peep sight

f) . Tighten both clamps.

2) Looking through the telescope, turn the telescope eye-

piece ø anticlockwise and stop turning just before the

image of reticle becomes blurred. In this way, frequent

refocusing can be dispensed with, since your eye is

focused at infinity.

3) Turn the focusing ring ~ and focus on the target. Sight

the. target with the vertical CD and horizontal fine

motion ~ . Focus on the target until there is no

parallax between the target and the reticle.

~,

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Parallax: relative displacement of target image in respect to the

reticle when observer's head is moved somewhat

before the eyepiece.

If sighting is carried out before parallax is eliminated,

this wil introduce error in reading and will impair

your observation.

(5) Sig'iting

i) Shift the target until it coincides with the central part of

a reticle line or bisects a double line reti;e by turning the

fine motions clockwise. If the fine motion is turned too

much, give one complete anticlockwise turn, then repeat

another sighting with clockwise fine motion.

2) Position of target on the reticle line(s)

Horizontal angle: at a point close to the center of the

vertical reticle.

Zenith angle: at a point close to the center of the

horizontal reticle.

N .B. Use the same point of the reticle when the tele-

scope face is changed.

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I,

Horizontal

angle

Zenith angle

Fig,

10

For one reflecting prism with target, see N.B. on page 32.

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(6) Swivel lever

Main unit of SDM3E is detachable from the tribrach. Give a

1800 anticlockwise turn to the swivel lever æ . The main

unit can be removed and replaced by other instruments such "S

a target, reflecting prism, etc.

To mount the instrument on the empty tribrach, open the

swivel lever (i 800 anticlockwise turn), put the instrument in

the tribrach, and turn the swivel lever clockwise until a click

is heard.

N.B. For the new SDM3E just received, the swivel lever is

fixed with a screws 4l . Loosen it and keep it

loosened.

Fig.

11

22

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2. Measuring angles

Before measuring angles. make sure that you have carried out the

CHECKS AND ADJUSTMENTS of the SDM3E indicated on page

76.

Even for angle measurement. be sure the internal battery is

mounted.

(i) Horizontal and vertical circle reading

Open the reflector 0. Turn the micrometer eyepiece fa

to focus on the graduations. Three windows are seen. See

Fig. i 2. The upper window marked V is for a degree of zenith

angle. The lower window marked H is for a degree of

horizontal angle. The small window on the right is for minutes

and seconds of the both angles, and is thus known as MS

window.

..

H ...

--

MS

Fig.

12

I) Reading horizontal angle

Fig. i 3 shows the appearance of the windows after the

sighting. Hand MS windows are used. In the H window,

i 28° and 129° graduations are seen on the both sides of

the index line. Turn the micrometer knob fl until the

index line bisects the double line of either 128° or 129°

graduation as in Fig. i 4. The MS window shows 46' 00".

The horizontal reading is then 128°46' 00".

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Fig.

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Fig.

14

2) Reading zenith angle

After the target is sighted. look at the V and MS windows.

Two graduations are seen on the both sides of the double

index line (Fig. 14). Turn the micrometer knob until

either degree is centered in the double line as in Fig. 15.

The zenith angle reading is then 92° 5' 50".

N.B.

Two displays of minutes and seconds may be seen in

the MS window under certain circumstances. Read

the figures lying closer to the arrow indices.

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15

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(2) Horizontal angle measurement

I) CoventionaI (clockwise) measurement

a. Sight the first target A. (Fig. 16)

b. Turn the micrometer knob ~ to read the hori-

zontal circle.

Example: 44°21'40" (Fig.

17)

A

EB

o Fig. 16

B

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Fig. 17

c. Use the horizontal clamp Cf and horizontal fine

motion CD to sight the second target B. (Fig. 18)

d. Turn the micrometer knob and read the horizontal

circle. Example: 125°42' 40" (Fig. 19)

e. Subtract the 1st from the 2nd reading to obtain the

angle AOB.

Example: 125°42'40" - 44°21' 40" = 81°21'00"

A

æ

o Fig. 18

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B

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Fig.

19

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26

2) Honzontal angle from 0°00'00"

a. Turn the micrometer knob until 0'00" coincides with

the arrow indices in the MS window.

..

H ..

-

Fig.

20

Loosen the honzontaI clamp lD and the lower

clamp ti and hold the upper aIidade lightly. Turn

the circle positioning ring æ until the 0° button 0

is aligned with the 0° index 0 Graduation 0° ap-

pears in the H window.

Tighten the horizontal clamp lD and turn the

horizontal fine motion lD unti the index line

bisects the 0° double line, Fig. 2 i.

Guide the target A into the field of view. Tighten the

lower clamp ti . Sight the target A with the lower

fine motion d! . The target A is now in the direc-

tion of 0°0'00", Fig. 22.

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Fig.

22

Fig.

21