Table of Contents
Advertisement
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Leica NA720
Summary of Contents for Leica NA720
- Page 1 Leica NA720/724/ 728/730/730 plus User Manual Version 2.0 English...
- Page 2 The type and serial number of your product are indicated on the type plate. tion Enter the type and serial number in your manual and always refer to this information when you need to contact your agency or Leica Geosystems authorised service work- shop. Type: _______________ Serial No.:...
- Page 3 Important paragraphs which must be adhered to in practice as they enable the product to be used in a technically correct and efficient manner. Validity of this This manual applies to the NA720/724/728/730/730 plus instruments. Differences manual between the various models are marked and described. NA720/724/728/730/730 plus, Introduction...
- Page 4 User Manual. plus User Provides an overview of the product together with tech- Manual nical data and safety directions. Refer to the following resources for all NA720/724/728/730/730 plus docu- mentation: • https://myworld.leica-geosystems.com...
-
Page 5: Table Of Contents
In this manual Chapter Page Safety Directions General Introduction Definition of Use Limits of Use Responsibilities Hazards of Use Description of the System Container Contents Instrument Components Understanding Terms and Expressions Operation Preparation Measurement Check & Adjust NA720/724/728/730/730 plus, Table of Contents... - Page 6 NA720/724/728/730/730 plus, Table of Contents Care and Transport Transport Storage Cleaning and Drying Technical Data Accessories...
-
Page 7: Safety Directions
The following directions enable the person responsible for the product, and the person who actually uses the equipment, to anticipate and avoid operational hazards. The person responsible for the product must ensure that all users understand these directions and adhere to them. NA720/724/728/730/730 plus, Safety Directions... -
Page 8: Definition Of Use
NA720/724/728/730/730 plus, Safety Directions Definition of Use Intended Use • Optical height readings. • Optical distance measuring with stadia readings. Reasonably fore- • Use of the product without instruction. seeable misuse • Use outside of the intended use and limits. -
Page 9: Limits Of Use
Local safety authorities and safety experts must be contacted before working in DANGER hazardous areas, or close to electrical installations or similar situations by the person in charge of the product. NA720/724/728/730/730 plus, Safety Directions... -
Page 10: Responsibilities
NA720/724/728/730/730 plus, Safety Directions Responsibilities Manufacturer of Leica Geosystems AG, CH-9435 Heerbrugg, hereinafter referred to as Leica Geosys- the product tems, is responsible for supplying the product, including the user manual and original accessories, in a safe condition. Person responsible... -
Page 11: Hazards Of Use
NOTICE Strong magnetic fields in the immediate vicinity (e.g. transformers, melting furnaces...) may influence the compensator and lead to measuring errors. NA720/724/728/730/730 plus, Safety Directions... - Page 12 NA720/724/728/730/730 plus, Safety Directions Precautions: When working near strong magnetic fields, check results for plausibility. Be careful when pointing the product towards the sun, because the telescope func- CAUTION tions as a magnifying glass and can injure your eyes and/or cause damage inside the product.
- Page 13 By disposing of the product irresponsibly you may enable unauthorised 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. NA720/724/728/730/730 plus, Safety Directions...
- Page 14 Always prevent access to the product by unauthorised personnel. Product-specific treatment and waste management information can be downloaded from the Leica Geosystems home page at http://www.leica- geosystems.com/treatment or received from your Leica Geosystems dealer. Only Leica Geosystems authorised service workshops are entitled to repair these WARNING products.
-
Page 15: Description Of The System
Description of the System General descrip- The NA720/724/728/730/730 plus is a member of a new generation of construction tion levels. Its innovative technology makes the daily surveying jobs easier. The instrument is ideally suited for all applications of a reliable and robust construc- tion level. -
Page 16: Container Contents
NA720/724/728/730/730 plus, Description of the System Container Contents Container contents a) Allen key b) Protective cover c) CD user manual d) Customer information, Manufacturer certification, Protect card e) Level 008716_001... -
Page 17: Instrument Components
Instrument Components Instrument compo- nents 008715_001 a) Level mirror for NA720/NA724; Level prism for NA728/NA730/NA730 plus Objective b) Eyepiece g) Endless drive (both sides) c) Cover glass for angle reading (° or gon) h) Circular level d) Focusing knob Knurled ring of adjustable hori-... -
Page 18: Understanding Terms And Expressions
NA720/724/728/730/730 plus, Description of the System Understanding Terms and Expressions Plumb line a) Plumb line b) Vertical axis tilt 008717_001 By centring the circular level the instrument is nearly levelled up. A small instrument tilt remains (the vertical axis tilt). - Page 19 For determining the height difference (∆H) between the ground points A and B the back sight (R) is measured first followed by the forward sight (V). Additional points relating to A are measured as intermediate sight (S). NA720/724/728/730/730 plus, Description of the System...
-
Page 20: Operation
NA720/724/728/730/730 plus, Operation Operation Preparation Tripod When setting up the tripod pay attention to ensuring a horizontal position of the tripod plate. Slight corrections of inclina- tion can be made with the foot screws of the tribrach. Larger corrections must be... - Page 21 Careful handling of tripod. • Check all screws and bolts for correct fit. • During transport always use the cover supplied. • Use the tripod only for surveying tasks. NA720/724/728/730/730 plus, Operation...
- Page 22 NA720/724/728/730/730 plus, Operation Levelling up, 1. Place level onto tripod head. Tighten central fixing screw of tripod. step-by-step 2. Turn footscrews of tribrach into its centre position. 3. Centre circular level by turning the foot- screws. 008790_001...
- Page 23 Centring the circular level 1. Turn footscrews A and B simultaneously in opposite directions until bubble is in the centre (on the imaginary "T"). 008791 001 2. Turn footscrew C until bubble is centred. 008792 001 NA720/724/728/730/730 plus, Operation...
- Page 24 NA720/724/728/730/730 plus, Operation Selection of angle Changing between ° and gon: reading Degree 008803_001 Step Description Loosen screws with Allen key and remove cover glass. Turn cover glass. Insert cover glass and tighten screws again.
- Page 25 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 reticle may not be displaced against each other. 008817_001 NA720/724/728/730/730 plus, Operation...
- Page 26 NA720/724/728/730/730 plus, Operation Centring Step Description For possible centring over a ground point: Attach plumb bob. Loosen central fixing screw slightly and shift instru- ment parallel on tripod until the plummet is exactly over the point. Tighten central fixing screw.
-
Page 27: Measurement
User Manual. Step Description Setup instrument, level and sharp-focus the reti- cule. Setup level staff vertically (refer also to Instruction Manual of staff). Roughly aim on staff using the coarse aiming device. 008793_001 Sharp-focus using the focusing knob. NA720/724/728/730/730 plus, Operation... - Page 28 NA720/724/728/730/730 plus, Operation Step Description Fine-aim on staff using the endless drives. Check if circular level is centred (view level prism/level mirror). Read off height H at the centre hair of the reticle. Example above: H = 2.585 m 008795_001 Distance meas- Carry out steps 1 to 6 according to height reading.
- Page 29 Distance d: 16.8 m Result: Distance d = 100 x L Angle measuring The NA720/724/728/730/730 plus is equipped with a horizontal circle. The gradua- tion is 1° or 1 gon. Degree 008796_001 Wanted: Angle between point A and point B.
- Page 30 NA720/724/728/730/730 plus, Operation Step Description Turn Hz-circle to "0". Align instrument to point B and aim on the centre of the staff. Degree Read off Hz-angle from Hz-circle: Example above: Hz = 60°. 008797_001 Line levelling ΔH 008798_001 Wanted: Height difference (∆H) between point A and B.
- Page 31 , aim on staff at the changepoint 2 and read backsight and take down. Carry out a foresight at changepoint 3. Continue in the same way until height at point B is measured. Result: ∆H = sum backsight - sum foresight NA720/724/728/730/730 plus, Operation...
- Page 32 NA720/724/728/730/730 plus, Operation Example of the booking: Point No. Backsight R Foresight V Height +2.502 650.100 +0.911 -1.803 +3.103 -1.930 -0.981 651.902 ∆H= +1.802 +6.516 -4.714 Area levelling 008811_001 Wanted: Height difference of several reference points.
- Page 33 Aim on staff and read and take down height (=measuring intermediate point, intermediate sight) Repeat steps 4 and 5 for additional intermediate points. The height of individual points are: Height = Height of station point + backsight (A) - intermediate sight NA720/724/728/730/730 plus, Operation...
- Page 34 NA720/724/728/730/730 plus, Operation Example of the booking: Point No. Interm. sight Height 592.00 +2.20 594.20 -1.80 592.40 -1.90 592.30 -2.50 591.70 -2.30 591.90 = Instrument horizon...
- Page 35 Sequence of measurements is the same as with area levelling. However, beside the height read also the staff section L (see chapter "Distance meas- uring") and the Hz-angle. Transfer measured value into the map - points are determined by position and height. NA720/724/728/730/730 plus, Operation...
- Page 36 NA720/724/728/730/730 plus, Operation Levelled stakeout Measuring ground points 008823_001 The stakeout is the counterpart to the levelling total station measuring - map points are set out in the field. Procedure: Step Description Set up instrument at a known point, centre and level up.
-
Page 37: Check & Adjust
1) Tighten the leg cap screws moderately with the allen key supplied. 2) Tighten the articulated joints on the tripod head just enough to keep the tripod legs open when lifting the tripod off the ground. 3) Tighten the screws of the tripod legs. NA720/724/728/730/730 plus, Operation... - Page 38 NA720/724/728/730/730 plus, Operation Circular Level Step Description Δ Level up instrument. Turn instrument by 180°. If bubble of level is outside the circle then it should be adjusted (see point 4.). 008799_001 Correct the half error using an Allen key and Δ/2...
- Page 39 008979_001 (halfway between A and B, just pass it down) and centre the bubble. Read both staffs. Reading on A = 1.832 m Reading on B = 1.616 m ∆H = A - B = 0.216 m NA720/724/728/730/730 plus, Operation...
- Page 40 NA720/724/728/730/730 plus, Operation Step Description Set up the level about 1 m from staff actual = 1.604 δ Read staff A (eg.: 1.604 m). nominal = 1.388 Find nominal reading B; eg.: Reading A - ∆H = 1.604 m - 0.216 m = 1.388 m.
- Page 41 Turn the allen key until the middle hair gives the required reading (eg. 1.388 m). Check line of sight again. 008815_001 Before starting field work or after long periods of storage/ transport of your equipment check the field adjustment parameters specified in this User Manual. NA720/724/728/730/730 plus, Operation...
-
Page 42: Care And Transport
Shipping When transporting the product by rail, air or sea, always use the complete original Leica Geosystems packaging, transport container and cardboard box, or its equiva- lent, to protect against shock and vibration. Field adjustment Periodically carry out test measurements and perform the field adjustments indicated in the User Manual, particularly after the product has been dropped, stored for long periods or transported. -
Page 43: Storage
Refer to "5 Technical Data" for information about temperature limits. Field adjustment After long periods of storage inspect the field adjustment parameters given in this user manual before using the product. NA720/724/728/730/730 plus, Care and Transport... -
Page 44: Cleaning And Drying
NA720/724/728/730/730 plus, Care and Transport Cleaning and Drying Product and acces- • Blow dust off lenses. sories • Never touch the glass with your fingers. • Use only a clean, soft, lint-free cloth for cleaning. If necessary, moisten the cloth with water or pure alcohol. -
Page 45: Technical Data
Height accuracy for a single measurement at 30 m: NA720: 1.5 mm NA724: 1.2 mm NA728: 1 mm NA730: 0.8 mm NA730 plus: 0.4 mm Erect image Telescope Magnification NA720: 20 x NA724: 24 x NA728: 28 x NA730/NA730 plus: 30 x NA720/724/728/730/730 plus, Technical Data... - Page 46 NA720/724/728/730/730 plus, Technical Data Field of view (at 100 m): > 4 m (NA720) > 3.5 m (NA724) > 3 m (NA728/NA730/NA730 plus) Shortest target distance: < 0.5 m (NA720/NA724) < 0.7 m (NA728/NA730/NA730 plus) Multiplication factor: 100 (all instruments)
- Page 47 To normal or ball head tripod Adaption Central fixing screw: 5/8’’ Environmental Temperature specifications Operating temperature Storage temperature -20°C to +50°C -40°C to +70°C (-4°F to +122°F) (-40°F to +158°F) NA720/724/728/730/730 plus, Technical Data...
-
Page 48: Accessories
NA720/724/728/730/730 plus, Accessories Accessories Purchasable Acces- sory a) Protective cover b) Allen key c) Level base d) Standard level staff e) Tripod 008981_001... - Page 49 NA720/724/728/730/730 plus, Accessories...
- Page 50 Leica Geosystems AG Heinrich-Wild-Strasse CH-9435 Heerbrugg Switzerland Phone +41 71 727 31 31 www.leica-geosystems.com...
Need help?
Do you have a question about the NA720 and is the answer not in the manual?
Questions and answers