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Features

8

5

4

01. Focusing knob

02. Sighting guides

03. Crosshairs adjustment screws(under cover)

04. Crosshairs focusing ring

05. Eyepiece

06. Horizontal rotation ring and angleindex

07. Angleindex reading line

08. Leveling screws

09. Baseplate

10. Circular level adjustment screws

11. Horizontal tangent knob

12. Circular level

13. Mirror for reading circular level

14. Objective

Maintenance and Car

Aswith all precision instrutransported and stored in i

When carrying theinstrumto carry it vertically rather

Whenever possible, storet

Wipethe instrument cleanand eyepieceswith special clean, lint-freecotton cloth

When working in wet weacarrying casein thefield awith thecaseopen.

Safety Information

Included in thismanual areCthesewordsrepresentsalevelindicatesahazard or unsafepinjury or property damage. Ainformation unrelated to safe

Establishing an Elevation

1.Set up and level theinstrument.2.Set thegraderod on aknown elevation (30.55 m) and takea

graderod reading (1.72 m).

3.Add thegraderod reading to theknown elevation to get theheight of instrument or HI (1.72 +30.55 =32.27 m).

4.Subtract theelevation of thepoint you want to establish(31.02 m) from theH I (32.27) to calculatethedifferencebetween thetwo points (32.27 31.02 =1.25 m).

5.Go to thepoint you want to establish and adjust theheight ofthegraderod until thecalculated difference(1.25) iscenteredin thecrosshairs.

Taking Measurements

Determining the Difference in Elevation

How to Use the Instrument

Setting Up the Instrument

1.Set up the tripod at aheight appropriatefor your use.Note:Makesurethetripod isstableand thetripod head isrelatively level.

2.Attach theinstrument to thetripod.

3.Level theinstrument using thecircular level asareference.

4.Focusthetelescopecrosshairs by turning thecrosshairsfocusing ring.

Aligning the Instrument

1.Align thetelescopeto thegraderod using thesighting guides.

2.Turn thefocusing knob to bring thegraderod into sharpfocus. Precisely sight thecenter of thegraderod in thetelescopecrosshairsusing thehorizontal tangent knob.

3.Check for parallax shift.

Note:No parallax existsif thecrosshairsand thegraderodgraduationsremain in coincidenceeven when you changeyour viewing angle (moveyour eyeup/down and left/right infront of theeyepiece).

Note:After thebubblein thecircular level hasbeen centered,thecompensator correctsresidual line-of-sight inclinations.

Thecompensator doesnot, however, eliminateany tiltsresulting from inadequateadjustment of thecircular level orlineof sight. Thesemust bechecked regularly (seeAdjustingtheInstrument for moreinformation).

Taking a Distance Meas

Note:Theinstrumentsstadidistancebetween theinstrum

1.Takereadingsat theupperline(1.436 m) and thelowline(1.152 m).

2.Calculatethedifferencebethetwo readings(1.436 0.284 m).

3.Multiply thedifferencebyto get thedistancebetweeninstrument and thegrade(.284 x 100 =28.4).

4.Add 0.1 (28.4 +0.1 =28.

Computation Example

Elevation

Center LineReading

DistanceMeasurement

Upper StadiaLineReading

Lower StadiaLineReading

Difference

Distance(0.284 x 100)

Add 0.1 (28.4 +0.1)

2 3

5 6 7

9

8

14

13

12

10

11

3

2

1

7

6

1.Set up theinstrument half way between two points (A and B).

2.Takeareading at point A (a1 =1.726 m) and another oneatpoint B (b1 =1.259 m).

Note:A slight deviation of the lineof sight from horizontalwill not causeany measuring error aslong astheinstrumentis set up approximately half way between thetwo points.

3.Subtract b1 from a1 to get thedifferencebetween thepoints(d =0.467 m).

Note:Point B is0.467 higher than point A becausethedifferenceisapositivenumber. If point B werelower thanpoint A, thenumber would benegative.

AX-2S, AC-2S, AP-8Auto Level

User Guide

a1 b1

A

B

1.259

1.726

0.467

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Adjusting the Instrument

Circular Level

1.Set up theinstrument.

2.Center thebubbleof thecircular level using thelevelingscrews.

3.Turn the telescope180(200 grads).

4 Check to seewhether thebubble is still centered in thecircle.If it isnt, eliminateonehalf of theerror with thelevelingscrewsand theother half with thetwo adjustment screwsforthecircular level.

5.Repeat theprocessuntil thebubbleremains centered whentheinstrument isturned.

Taking an Angle Measurement

1.Set up thetripod so that it isover ahub.

Note:Makesurethetripod isstableand thetripod head isrelatively level.

2.Hang aplumb-bob from theplumb-bob hook on thetripod.

Note:Makesuretheplumb-bob isover thehub.

3.Attach theinstrument to thetripod.

4.Center theplumb-bob over thepin in thehub by varyingthelength of thetripod legsor by shifting theinstrumenton thetripod.

5.Accurately align thetelescopeto thefirst target using thesighting guidesand ahorizontal tangent knob.

Note:Thefirst target isaknown point.

6.Turn thehorizontal rotation ring until 0on theangle indexalignswith theangleindex reading line.

7.Accurately align thetelescopeto thesecond target and readtheangle.

Line of Sight

Service Request

To locateyour local dealer or authorized Nikon ServiceCenterfor service, accessories, or spareparts, contact oneof our offices

listed below.

Trimble Constructio5475Kellenburger RDayton, Ohio 45424

USA+1-937-245-5600Ph

Niko

9 10 11

13 14 15

North AmericaTrimbleConstruction Division

5475 Kellenburger RoadDayton, Ohio 45424-1099

U.S.A.(800) 538-7800 (Toll Free)+1-937-245-5600 Phone+1-937-233-9004 Fax

EuropeTrimbleGmbHAmPrimeParc 1165479 Raunheim

GERMANY+49-6142-2100-0 Phone+49-6142-2100-550 Fax

Latin AmericaTrimbleNavigation Limited

6505 BlueLagoon DriveSuite120

Miami, FL 33126U.S.A.

+1-305-263-9033 Phone+1-305-263-8975 Fax

Africa& MiddleEastTrimbleExport Middle-East

P.O. Box17760Jebel Ali FreeZone, Dubai

UAE+971-4-881-3005 Phone+971-4-881-3007 Fax

Asia-PacificTrimbleNavigationAustralia PTY Limited

Level 1/120 WickhamStreetFortitudeValley, QLD 4006

AUSTRALIA+61-7-3216-0044 Phone+61-7-3216-0088 Fax

ChinaTrimbleBeijing

Room2805-07, TengdaPlaza,No. 168 Xiwai Street

Haidian DistrictBeijing, China100044

+86 10 8857 7575 Phone+86 10 8857 7161 Faxwww.trimble.com.cn

4.Movetheinstrument and behind point B.

5.Takeanother reading at p

6.Add b2 to d to get valuec

7.Takeanother reading at po

8.Comparevaluec (2.949) tboth numbersshould beth4 mm, reset thegraderod adjustment screws(unscrevaluec (2.949) iscentered

Caution:Theupper and lcounter-screwsand must n

9.Repeat theprocessuntil th(c and a2 arethesame).

1.Set up theinstrument half way between two points (A and B)that are30 to 40 m apart.

2.Takea reading at point A (a1 =2.423 m) and another oneatpoint B (b1 =0.936 m).

3.Subtract b1 from a1 to get thedifferencebetween thepoints(d =+1.487 m). Makesureyou notewhether valued is apositiveor negativenumber.

Note:Becausethe distancefrom theinstrument to each ofthepointsis equal, thedifferencein elevation iscorrect evenif the lineof sight isout of adjustment.

SpecificationsAX-2S AC-2S AP-8

Dimensions(W x L x H)

Instrument 190 x 123 x 128 mm 190 x 123 x 128 mm 190 x 123 x 128 mm(7.5 x 4.8 x 5.0 in.) (7.5 x 4.8 x 5.0 in.) (7.5 x 4.8 x 5.0 in.)

Case 292 x 163 x 170 mm 292 x 163 x 170 mm 292 x 163 x 170 mm(11.5 x 6.4 x 6.7 in.) (11.5 x 6.4 x 6.7 in.) (11.5 x 6.4 x 6.7 in.)

Weight

Instrument 1.30 kg(2.9 lb) 1.30 kg(2.9 lb) 1.30 kg(2.9 lb)

Case 0.9 kg(2.0 lb) 0.9 kg(2.0 lb) 0.9 kg(2.0 lb)

Accuracy

Standard deviation accordingto +/2.5 mm +/2.0 mm +/1.5 mmDIN 18723 on 1 kmof doubleleveling

Levelingaccuracy 3 mm@30 m 3 mm@46 m 1.5 mm@60 m(1/8 in. @100 ft) (1/8 in. @150 ft) (1/16in. @200 ft)

Telescope

Magnification 20x 24x 28x

Aperture 30 mm(1.2 in) 30 mm(1.2 in) 30 mm(1.2 in)

Telescopeimage Erect Erect Erect

Field of view angle 1 30' (2.6 ft @100 ft) 1 30' (2.6 ft @100 ft) 1 30' (2.6 ft @100 ft)

Shortest focusingdistance 0.75 m(2.46 ft) 0.75 m(2.46 ft) 0.75 m(2.46 ft)

Stadiaconstant 100 100 100

Addition constant +10 cm +10 cm +10 cm

Automatic Compensator

Type Wiresuspension, Wiresuspension, Wiresuspension,magnetically damped magnetically damped magnetically damped

WorkingRange +/16 minutes +/16 minutes +/16 minutes

SettingAccuracy +/0.5 seconds +/0.5 seconds +/0.5 seconds

a2 b2

a1 b1

A

B

a2= 2.423 b

2= 1.462

+b1= 0.936 -d = 1.487

d = +1.487 c = 2.949

North AmericaTripod DataSystems, Inc.

4100 SW Research WayCorvallis, OR 97333

U.S.A.+1-541-753-9322 Phone+1-541-757-7439 Fax

www.tdsway.com

Notice to Our Eur

For product recycling instructions aplease go to: www.trimble.com/env

Recyc

To recycle Trimble WEEE, call: +31associate, or

mail a request for recycling instruct

Trimble Europe BVc/o Menlo Worldwide LogisticsMeerheide 45

5521 DZ Eersel, NL