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Summary of Contents for Leica na720
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- Page 2 Congratulations on your purchase of a new Leica Geosystems automatic level. This manual contains important safety directions (refer to section "Safety directions") as well as instructions for setting up the instrument and operating it. Please read this User Manual carefully to achieve maximum efficiency from your Instrument.
- Page 3 Write the type and serial number of your instrument in the space provided below, and always quote this information when you need to contact your agency or service workshop. Type: Serial no.: NA720/NA724/NA728/NA730-1.0.1en...
- Page 4 / or appreciable material, financial and environmental damage. Important paragraphs which must be adhered to in practice as they enable the product to be used in a technically correct and efficient manner. NA720/NA724/NA728/NA730-1.0.1en...
- Page 5 Introduction ................. 7 Measurement preparation ..........10 Measuring ................15 Checking and adjusting ........... 20 Care and Storage .............. 22 Safety Directions .............. 25 Accessories ............... 32 Technical Data ..............33 Index ................... 34 NA720/NA724/NA728/NA730-1.0.1en...
- Page 6 Limits of use ..........26 Line levelling ..........17 Responsibilities ......... 27 Area levelling ..........18 Hazards of use ......... 28 Levelling total station measuring ..... 19 Levelled stakeout ........19 Accessories ..........32 Technical Data ......... 33 Index ............34 NA720/NA724/NA728/NA730-1.0.1en...
- Page 7 The NA720/NA724/NA728/ • Easy operation; quickly to NA730 is a member of a new learn ! generation of construction • Attractive design; low weight. levels. Its innovative technology makes • Endless drive. the daily surveying jobs easier. • Robust and reliable.
- Page 8 7 Coarse aiming device (back/fore-sight for NA720/ NA724; optical sight with point marking for NA728/ NA730) 8 Focusing knob 9 Cover glass for angle reading ( ° or gon) 10 Eyepiece 11 Level mirror for NA720/ NA724; Level prism for NA728/NA730 NA720/NA724/NA728/NA730-1.0.1en...
- Page 9 A and B the back (the vertical axis tilt). tilt enabling an exactly horizontal sight (R) is measured first aiming. followed by the forward sight (V). Additional points relating to A are measured as intermediate sight (S). NA720/NA724/NA728/NA730-1.0.1en...
- Page 10 Remove NA720/NA724/NA728/NA730 from the case and check for completeness: 1 Level 2 User Manual 3 Allen key 4 Protective cover NA720/NA724/NA728/NA730-1.0.1en...
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Page 11: Measuring
When pressing the legs into • Use the tripod only for the ground note that the force surveying jobs. must be applied along the legs. NA720/NA724/NA728/NA730-1.0.1en... - Page 12 2. Turn foot screw C until bubble tripod. simultaneously in opposite is centred. 2. Turn footscrews of tribrach directions until bubble is in into its centre position. the centre (on the imaginary "T"). 3. Centre circular level by turning the foot screws. NA720/NA724/NA728/NA730-1.0.1en...
- Page 13 3. Tighten central fixing screw. other. NA720/NA724/NA728/NA730-1.0.1en...
- Page 14 Changing between ° and gon: 1. Loosen screws with Allen key and remove cover glass. 2. Turn cover glass. 3. Insert cover glass and tighten screws again. Degree NA720/NA724/NA728/NA730-1.0.1en...
- Page 15 Keep clean all the coarse aiming device. centre hair of the reticle. optical parts of your instrument 4. Sharp-focus using the Example above: and follow the cleaning focusing knob. H = 2.585 m instructions specified in the User Manual. NA720/NA724/NA728/NA730-1.0.1en...
- Page 16 Degree Degree Carry out steps 1 to 6 according The NA720/NA724/NA728/ Carry out steps 1 to 6 according to height reading. NA730 is equipped with a to height measuring. By doing horizontal circle. The graduation so, align the vertical hair of the Reading: is 1°...
- Page 17 (d1 ≈ d2; approx. 40 to 50m). 5. Setup level at I , aim on staff -0.981 651.902 at the changepoint 2 and Procedure: ∆H= read backsight and take 1. Setup instrument at I Sum +6.516 -4.714 down. +1.802 NA720/NA724/NA728/NA730-1.0.1en...
- Page 18 Nevertheless, from time to time -1.90 592.30 6. Repeat steps 4 and 5 for read the staff on a stable -2.50 591.70 additional intermediate intermediate point (reading must points. -2.30 591.90 remain the same). ⊗ =Instrument horizon NA720/NA724/NA728/NA730-1.0.1en...
- Page 19 The levelling total station height read also the staff measuring is normally section L (see chapter carried out during area levelling. "Distance measuring") and the Hz-angle. 2. Transfer measured value into the map - points are determined by position and height. NA720/NA724/NA728/NA730-1.0.1en...
- Page 20 (if available). adjusted (see point 4). telescope direction. 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. NA720/NA724/NA728/NA730-1.0.1en...
- Page 21 2. Check line of sight again. 3. Set up the instrument at point 1.604 m - 0.216 m = 1.388 m (halfway between A and B, 8. Read staff B, compare just pass it down) and centre nominal-/actual- reading. the bubble. NA720/NA724/NA728/NA730-1.0.1en...
- Page 22 When transporting or shipping the equipment always use the original Leica Geosystems packaging (transport case and shipping cardboard). After a longer period of storage or transport of your instrument always check the field adjustment parameters When transporting the • carry the tripod with its legs indicated in this manual before using the instrument.
- Page 23 When storing the loose inside the vehicle. rail, aircraft or ship use the equipment, particularly in The instrument can be damaged Leica Geosystems original summer and inside a vehicle, by blows and vibrations. packaging (transport case or take the temperature limits into...
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Page 24: Accessories
Pack up the • Use only a clean, soft and equipment only when it is lint-free cloth for cleaning. If perfectly dry. necessary, moisten the cloth with pure alcohol. When using the instrument in the field always close the transport case. NA720/NA724/NA728/NA730-1.0.1en... - Page 25 (screwdriver, etc.), directions and adhere to them. • Angle measurements and unless this is specifically staking out with horizontal permitted for certain functions circle • Modification or conversion of the instrument • Use after misappropriation NA720/NA724/NA728/NA730-1.0.1en...
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Page 26: Technical Data
Adverse use can lead to Suitable for use in an the prior express approval of injury, malfunction, and material atmosphere appropriate for Leica Geosystems damage. permanent human habitation: • Aiming directly into the sun It is the task of the person not suitable for use in aggressi- •... - Page 27 • To understand the safety instructions on the product and the instructions in the User Manual. • To be familiar with local regulations relating to accident prevention. • To inform Leica Geosystems immediately if the equipment becomes unsafe. NA720/NA724/NA728/NA730-1.0.1en...
- Page 28 NA720/NA724/NA728/NA730-1.0.1en...
- Page 29 Do not carry out field surveys Precautions: sites and at industrial during thunderstorms. Do not aim directly at the sun. installations. Precautions: Always ensure that the surveying site is adequately secured. Adhere to the local regulations governing accident prevention and road traffic. NA720/NA724/NA728/NA730-1.0.1en...
- Page 30 Never leave a vertical staff securely tightening the central supported by a brace fixing screw. If the screw is unsupervised (person at the loosened always remove the staff). instrument immediately from the tripod. NA720/NA724/NA728/NA730-1.0.1en...
- Page 31 • By disposing of the equipment 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. NA720/NA724/NA728/NA730-1.0.1en...
- Page 32 User Manual Protective cover Allen key Level base Standard level staff Tripod NA720/NA724/NA728/NA730-1.0.1en...
- Page 33 Compensator: type NA720 NA724 NA728 NA730 • Working range ± 15' • Setting accuracy Accuracy (standard deviation) < 0.5" Standard deviation for 1 km 2.5 mm 2 mm 1.5 mm 1.2 mm Circular level: double levelling • Sensitivity 10' / 2 mm Height accuracy for a single 1.5 mm 1.2 mm...
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Page 34: Centring
Circular level ........12, 15, 20 Cleaning ............24 Compensator ..........9 Optical sight ..........13 Distance line ..........16 Packaging ............ 23 Plumb bob ............ 13 Plummet ............13 Electrical installations ........28 Environment ..........26 Eyepiece ............13 NA720/NA724/NA728/NA730-1.0.1en... -
Page 35: Measuring
Safe distance ..........28 Sharp-focus ..........15 Shipping ..........22, 23 Stakeout ............19 Storage ..........22, 24 Storing ............23 Target distances .......... 17 Total station measuring ....... 19 Transport ............22 Transport case ........22, 24 Tripod ............20 NA720/NA724/NA728/NA730-1.0.1en... - Page 36 Ask your local Leica Geosystems ment and Quality Systems (ISO agent for more information about standard 9001) and Environmental our TQM program. Management Systems (ISO standard 14001). 712355-1.0.1en Printed in Switzerland - Copyright Leica Geosystems AG, Heerbrugg, Switzerland 2000 Translation of original text (712354-1.0.1de)
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