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NA2/NAK2-2.0.0en

Measuring

17

Project:

Height difference of several
reference points.

The required accuracy is
usually not very high

with such measurements.
Nevertheless, from time to time
read the staff on a stable
intermediate point (reading must
remain the same).

Area levelling

Procedure:

1. Set up instrument centrally

between the desired points.
The instrument telescope
may not be below the highest
measured intermediate point.

2. Set up staff vertically at

reference point A.

3. Aim at staff and read and

take down height (=backsight
to known point).

4. Set up staff vertically at

point 1.

5. Aim at staff and read and

take down height
(=measuring intermediate
point, intermediate sight)

6. Repeat steps 4 and 5 for

additional intermediate
points.

Height =

Height of station point

+ backsight (A)

- intermediate sight

NA-29

R

S1

A

1

2

3

4

S2

S3

S4

7. The height of individual points

are:

Example of booking:

⊗

=

Instrument horizon

Point

No.

Interm.

sight

Height

A

592.00

R1

+2.20

⊗

594.20

S1

-1.80

592.40

S2

-1.90

592.30

S3

-2.50

591.70

S4

-2.30

591.90

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Содержание NA2

Страница 1: ...User Manual English Version 2 0 Leica NA2 NAK2 ...

Страница 2: ...l as instructions for setting up the product and operating it Refer to Safety Directions for further information Read carefully through the User Manual before setting up the product Congratulations on your purchase of a NA2 NAK2 automatic level Automatic level Automatic level ...

Страница 3: ...uct are indicated on the housing Enter the model and serial number in your manual and always refer to this information when you need to contact your agency or Leica Geosystems authorized service workshop Type Serial no Product identification Product identification ...

Страница 4: ...unintended use which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation or an unintended use which if not avoided may result in minor or moderate injury and or appreciable material financial and environ mental damage Important paragraphs which must be adhered to in practice as they enable the product to be used in a technically correct and ef...

Страница 5: ...2 2 0 0en 5 Introduction 7 Measurement preparation 10 Measuring 14 Checking and adjusting 20 Care and Storage 22 Safety Directions 25 Accessories 32 Technical Data 34 Index 35 View of chapters View of chapters ...

Страница 6: ...Line levelling 16 Area levelling 17 Levelling total station measuring 18 Levelled stakeout 18 Precise levelling 19 Checking and adjusting 20 Tripod 20 Circular level 20 Checking and adjusting of the line of sight 21 Care and Storage 22 Transport 22 In the field 22 Inside vehicle 23 Shipping 23 Storage 23 Cleaning 24 Safety Directions 25 Intended use of instrument 25 Permitted uses 25 Adverse uses ...

Страница 7: ...is ideally suited for all levelling applications and at all orders of accuracy The instantaneous check facility with the push button control promotes confidence Easy operation quick to learn Robust and reliable High setting accuracy Endless drive Telescope with excellently corrected optics for bright high contrast images Enables angle measurements with internal glass circle NAK2 model Optional par...

Страница 8: ...g locks eyepiece in place 4 Open sight 5 Prism for viewing circular level 6 Rapid fine focussing knob 7 Objective housing 8 Push button for compen sator control 9 Footscrew 10 Milled rim for Hz circle setting NAK2 only 11 Circular level 12 Base plate 13 Endless horizontal drive both sides 11 6 9 12 4 5 8 10 2 1 NA 02 3 7 13 ...

Страница 9: ...are measured as intermediate sight S Plumb line By centring the circular level the instrument is almost level A small instrument tilt remains the vertical axis tilt Compensator The compensator in the instrument is responsible for compensating the vertical axis tilt enabling an exactly horizontal aiming The push button gives the pendulum a slight tap to check the functioning of the compensator NA 0...

Страница 10: ...chsanweisung NA 700 kdkjodkolmdlkom öm lkok 1 Level 2 User Manual 3 Allen key Adjusting pins 4 Protective cover sun shade Remove NA2 NAK2 level from the case and check that all components are present Case contents Measurement preparation NA 35 2 1 4 3 ...

Страница 11: ... out to required length and tighten screws 2 In order to guarantee a firm foothold sufficiently press the tripod legs into the ground When pressing the legs into the ground note that the force must be applied along the legs Careful handling of tripod Check all screws and bolts for correct fit During transport always use the cover supplied Scratches and other damages can result in poor fit and meas...

Страница 12: ...f tripod 2 Turn footscrews of tribrach into centre position 3 Centre circular level by turning the foot screws Centring the circular level 1 Turn foot screws A and B simultaneously in opposite directions until bubble is in the centre on the imaginary T 2 Turn foot screw C until bubble is centred NA 12 NA 13 NA 14 B A C ...

Страница 13: ...e coarse aiming device 4 Turn focusing knob until image of staff is sharply focused If the eye is moved up and down behind the eyepiece the image of the staff and the reticule should not move relative to each other For centring over a ground point 1 Attach plumb bob 2 Loosen central fixing screw slightly and shift instrument parallel on tripod until the plummet is exactly over the point 3 Tighten ...

Страница 14: ...n the User Manual Before starting work let the instrument adjust to the ambient temperature approximately 2 minutes per ºC of temperature difference 1 Setup instrument level and sharp focus the reticule 2 Setup level staff vertically refer also to Instruction Manual of staff 3 Roughly aim on staff using the coarse aiming device 4 Sharp focus using the focusing knob Height reading 5 Fine aim on sta...

Страница 15: ...ngle bring the vertical hair of the reticule to the centre of the staff By turning the milled ring the circle can be set to 0 or any desired reading Angle measuring Circle reading 392 66 The circle is viewed through the scale microscope and sharply focussed by turning the microscope eyepiece The Hz angle is read from the graduation line which protrudes into the scale Each scale line represents 10 ...

Страница 16: ...ke down height backsight R 4 Setup level at the changepoint 2 aim at staff and read off and take down height foresight V 5 Setup level at I2 aim at staff at the changepoint 2 and read backsight and take down 6 Carry out a foresight at changepoint 3 7 Continue in the same way until height at point B is measured Result H sum backsight sum foresight Example of the booking NA 28 A B 2 3 R V R V R V I1...

Страница 17: ... intermediate point 2 Set up staff vertically at reference point A 3 Aim at staff and read and take down height backsight to known point 4 Set up staff vertically at point 1 5 Aim at staff and read and take down height measuring intermediate point intermediate sight 6 Repeat steps 4 and 5 for additional intermediate points Height Height of station point backsight A intermediate sight NA 29 R S1 A ...

Страница 18: ...z angle 2 Transfer measured value into the map points are determined by position and height Levelled stakeout The stakeout is the counterpart to the levelling total station measuring map points are set out in the field Procedure 1 Set up instrument at a known point centre and level up 2 Focus instrument and aim on known orientation point 3 Orient horizontal circle Hz direction 4 Move staff to stak...

Страница 19: ...recise levelling Procedure 1 Sequence of measurements is the same as with line levelling However the best observing length is approx 25m 2 When reading the staff turn the micrometer knob until a graduation line is centred between the wedge shaped hairs of the reticle 3 Centimetres are read from the staff and millimetres from the micrometer scale 4 Leica invar staffs have two sets of graduations Th...

Страница 20: ...ar level Connection of individual elements must always be tight 1 Tighten the Allen screws 2 moderately if available 2 Tighten the articulated joints on the tripod head 1 just enough to keep the tripod legs open when you lift it off the ground Tripod NA 30 4 Correct the half error using an adjusting pin and repeat steps 2 and 3 until the bubble of level is in the centre in any telescope direction ...

Страница 21: ... reading is more than 2 mm the line of sight must be adjusted 1 Screw off the protective cover 2 Turn the adjusting screw until the horizontal hair gives the nominal reading A2 on staff A The last turn of the adjusting screw should be clockwise 3 Screw on the protective cover 4 Repeat the checking procedure NA 45 NA 44 d d d A B A2 B2 A1 B1 1 2 8 Compare the nominal actual reading for A2 Parallel ...

Страница 22: ...or transport of your product always check the field adjustment parameters indicated in this manual before using the product Care and Storage Transport In the field When transporting the equipment in the field always make sure that you either carry the product in its original transport container carry the tripod with its legs splayed across your shoulder keeping the attached product upright NA 19 N...

Страница 23: ...nt is inside a vehicle Refer to Technical Data for information about temperature limits If the equipment is to be stored for a long time remove the alkaline batteries from the GEB63 battery box in order to avoid the danger of leakage Inside vehicle Shipping When transporting the product by rail air or sea always use the complete original Leica Geosystems packaging transport container and cardboard...

Страница 24: ...e cloth with water or pure alcohol Storage continued If the instrument becomes wet leave it unpacked Wipe down clean and dry the instrument at not more than 40 C 104 F transport case foam inserts and accessories Pack up the equipment only when it is completely dry When using the instrument in the field always close the transport case Do not use other liquids these may attack the polymer components...

Страница 25: ...ngs Precision levelling with attachable parallel plate micrometer Optical distance measuring with stadia readings Angle measurements and staking out with horizontal circle only NAK2 model Intended use of instrument Adverse uses Use of the product without instruction Use outside of the intended limits Disabling safety systems Removal of hazard notices Opening the product using tools for example scr...

Страница 26: ...ive environments Use in rain is permissible for limited periods splash water proof DANGER Local safety authorities and safety experts must be contacted before working in hazardous explosive areas or in close proximity to electrical installations or similar situations by the person in charge of the product Adverse uses contd WARNING Adverse use can lead to injury malfunction and damage It is the ta...

Страница 27: ... responsible for the effectiveness of those safety concepts in combination with the Leica Geosystems product Person in charge of the product The person in charge of the product has the following duties To understand the safety instructions on the product and the instructions in the user manual To be familiar with local regulations relating to safety and accident prevention To inform Leica Geosyste...

Страница 28: ...ed or has been misused modified stored for long periods or transported Precautions Periodically carry out test measurements and perform the field adjustments indicated in the user manual particularly after the product has been subjected to abnormal use and before and after important measurements DANGER Because of the risk of electrocution it is very dangerous to use poles and extensions in the vic...

Страница 29: ... situations for example in traffic on building sites and at industrial installations Precautions Always ensure that the survey site is adequately secured Adhere to the regulations governing safety and accident prevention and road traffic CAUTION Be careful when pointing the product towards the sun because the telescope functions as a magnifying glass and can injure your eyes and or cause damage in...

Страница 30: ...e correctly adapted fitted secured and locked in position Avoid subjecting the product to mechanical stress Never position the product on the tripod baseplate without securely tightening the central fixing screw If the screw is loosened always remove the product immediately from the tripod CAUTION When using a vertical staff supported by one brace there is always the danger of falling for example ...

Страница 31: ... corrosion or environmental contamination By disposing of the product irresponsibly you may enable unauthorized persons to use it in contravention of the regulations exposing themselves and third parties to the risk of severe injury and rendering the environment liable to contamination Hazards of use continued Precautions Dispose of the product appropriately in accordance with the regulations in f...

Страница 32: ...he GPM3 is fitted onto the NA2 telescope objective and locked in position with the knob 4 By turning the micrometer knob the parallel sided glass plate is tilted thereby causing the line of sight to be raised or lowered The range of displacement is 10mm On the scale seen in the GPM3 s eyepiece the amount of displacement is read directly to 0 1mm and estimated to 0 01mm NA 46 Accessories 4 2 1 3 ...

Страница 33: ...cise levelling with the parallel plate micrometer the FOK73 eyepiece giving 40x magnification may be preferred GVO10 Auxiliary lens Art No 335958 When short focussing distances are required the auxiliary lens can be fitted to the objective Measuring range is 1 8 to 0 9m GEB60 Eyepiece lamp with cable Art No 394785 With the eyepiece lamp the NA2 can be used as a collimator for horizontal sighting G...

Страница 34: ...om instrument axis 1 6 m Distance measurement Multiplication factor 100 Additive constant 0 Compensator Working range 30 Setting accuracy stand dev 0 3 Technical Data Circular level Sensitivity 8 2 mm Glass circle of NAK2 Graduation 360º or 400 gon Graduation diameter 70 mm Graduation interval 1º or 1 gon Optical scale interval 10 or 10c Reading by estimation to 1 or 1c Temperature range Storage 4...

Страница 35: ...Centring 13 Circular level 12 14 20 Cleaning 24 Compensator 9 D Distance line 15 E Electrical installations 28 Environment 26 Eyepiece 13 33 F Focusing 13 33 H Height difference 9 16 17 Horizontal circle 15 Hz angle 18 Hz circle 15 L Line levelling 16 Line of sight 21 O Optical sight 13 P Packaging 23 Plumb bob 13 Plummet 13 Precise levelling 19 32 ...

Страница 36: ...rrangement point 16 Reticule 13 14 S Safe distance 28 Sharp focus 14 Shipping 22 23 Stakeout 18 Storage 22 24 Storing 23 T Target distances 16 Total station measuring 18 Transport 22 Transport case 22 24 Tripod 20 V Vibrations 14 W Wet instrument 24 ...

Страница 37: ......

Страница 38: ...al Management Systems ISO standard 14001 Total Quality Management Our commitment to total customer satisfaction Ask your local Leica Geosystems agent for more information about our TQM program Printed in Switzerland Copyright Leica Geosystems AG Heerbrugg Switzerland 2004 Original text 664941 2 0 0en Leica Geosystems AG CH 9435 Heerbrugg Switzerland Phone 41 71 727 31 31 Fax 41 71 727 46 73 www le...

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