The leica na720 automatic dumpy level with 20x magnification offers superior performance, value and extreme robustness. Some levels will autolevel, meaning it will do all the hard work for you. Figure 52 shows a dumpy level and its nomenclature. Calibration it is recommended that you check your lcl4 periodically to assure its accuracy.
To use dumpy level properly, surveyors may require some operation manual. Please follow the instruction properly to operate dumpy level properly. The cowley level was invented by australian keith cowley in 1944. The leica na720 automatic level is extremely popular within the construction industry being known for its increased robustness and precision when working in tough environments. Pentax auto focus levels offer you the flexibility to select the optimal measuring mode according to the conditions and the different types of targets. The following dumpy level operators manual is provided with sokkia b40 instrument. The level is a compact, lightweight instrument with excellent optics and excellent field results. The sidemounted mirror allows you to check the bubble position without removing your eye from the eyepiece.
Download and view user manuals dave whites sitepro. We offer the most comprehensive range of levels in the market today. Easytouse electronic level with digital height reading. The telescope of dumpy level can rotate only in a horizontal plane. Many of the current and recent model instrument manuals can be downloaded for free from the cstberger website selfhelp section.
This is the 2nd course held at agrosphere project base jamama and is expected to take a duration of two months from mid march to mid my 2004. Dumpy level, david white, model 8090, 11 builders, with 15 minute. Dumpy level surveywhat, where, how, parts civil engineering. The principal lines of the dumpy level, as illustrated in figure a1, are 1 axis of sight, 2. Dumpy level is commonly used leveling instrument to locate the points in same horizontal plane. The dumpy level is an optical surveying leveling instrument consisting a telescope tube firmly secured in two collars fixed by adjusting screws to the stage by the vertical spindle. It is used in archaeological surveying to measure horizontal levels, for example to demonstrate the difference in height at the top and base of a slope such as. Welcome to incorporation of advanced technology in geographical studies.
Info free download books optical dumpy level manual printable 2019 you know that reading optical dumpy level manual printable 2019 is beneficial, because we could get information through the resources. Buy dumpy level kits from the uks levelling experts. Dumpy level surveying components, procedure, advantages. Please contact us for further information on the ruide products. For the best performance of the instruments, please read these instructions carefully and keep them in.
This versatile piece of equipment is used for a range of measuring jobs including setting out, landscaping, profiling and general levelling tasks. One full size drawing sheet for lsection and cross section. With the laser 15cm away from and facing surface 1, carefully mark the center of the line where the lines cross. Study of components of dumpy level and leveling staff. Dumpy level, fennel, kassel, germany, 18 12 with dovetailed mahogany. All downloads must be accompanied by an sdr processing log. It is used in archaeological surveying to measure horizontal levels, for example to demonstrate the difference in height at the top and base of a slope such as an excavated pit or a surviving earthwork. It is also called as automatic level or builders level. The cross hairs are brought into exact focus by manipulating the knurled eyepiece focusing ring near the.
If the line is longer than the tape, an intermediate point or points must be set on line and two or more measurements must be made and recorded separately in the field book. The telescope is fixed to its supports in dumpy level and hence it cannot be. It is a continuation of the first course held in the same. The telescope can be rotated over a 360 degree scale d so that angles can be measured and read off. Detailed guide to checking your dumpy level for accuracy. Dumpy level kits level, staff and tripod the tape store. Produced by nathan altman, a purdue bcm spring 2009 graduate. Detailed guide to checking your dumpy level for accuracy and how to selfcalibrate please note that this is a guide for you to check your level, we have included instructions on recalibrating but do not recommend you recalibrate your self.
Notice that the telescope is rigidly fixed to the supporting frame. The bosch gol 32 automatic optical level features a selfleveling compensator, both horizontalvertical cross hairs and stadia lines, 32x magnification lens and large aperture for clear image. Relative elevation of different points of a surveying land is determined with dumpy level. Elevations of different points and distance between the points of same elevation can be determined by dumpy level. Leica surveying equipment innovative range of construction lasers, site levels, leica theodolites, laser surveying, and line laser equipment. Optical levels dumpy levels leica automatic levels. Choose two walls approximately 4 5 metres apart figure 1. Surveying instruments dumpy level manual exporter from. A dumpy level, socalled for its compact design, is a tool used for optical measurement in the surveying and general construction industries. A buyers guide to levels one point survey equipment. Calibration is best done by a trained technician using a calibration station. Selfleveling compensator with transport lock protects pendulum in carrying case against damage and loss of calibration. The parts of an optical level basically, an optical level is a telescope a that can be set perfectly level by turning the leveling screws b and watching the sensitive vial or bubble c.
They are maintained in pdf format for easy download and view. If your tool is a model not listed on the website, email us with your information. Please read this operators manual carefully before using this product. Dumpy level parts and functions pdf to use dumpy level properly, surveyors may require some operation manual. By selecting the af or mf mode, users can easily switch between the auto focus mode and the manual mode. Level the instrument, reading staff a and b at a1 and b1. Electronic level with additional productivity functions.
The electronic level with memory for advanced levelling work. We are a leading manufacturer and supplier of a precision engineered range of dumpy level. Instruction manual for a leica dumpy level south australia. Pathbruning instruments transits, tilt level, wye level, dumpy level. Here you will find all available manuals which you can download view andor print for dave white sitepro brands instruments and tools. Centre the bubble by adjusting the levelling screws until level. The tape must be held as close to level as you can and on line while making measurements. Inside the telescope there is a ring, or diaphragm, known as the reticle, which supports the cross hairs.
The geomax zal2 dumpy level reticle focus can be locked in position to suit a particular user. Exporter of surveying instruments dumpy level manual, steel ranging rods, south electronic theodolite and gps with altimeter offered by roorkee survey house, roorkee, uttarakhand. If the bubble moves out of centre it will need further adjustment. The compact size, light weight and highly efficient magnetic compensator make our dumpy level a must for the construction site. Leica na720 automatic level the leica na720 is, quite simply, the ultimate construction dumpy level thanks in no. Instruction manual auto level atg4 atg6 foreword thank you for purchasing the topcon green label auto level atg series. A dumpy level also known as a builders level is an optical instrument used to establish or check points in the same horizontal plane. Pentax dumpy level automatic level afl series supplier. This manual is produced to assist the surveyor trainees understand the basics of surveying using a level instrument particularly the dumpy level. We have gathered some pdf manual for the dumpy level instrument. Further, these are designed to suit all types of surveying environment. Optical dumpy level manual printable 2019 free reading at rhodeislandonline.
More about dumpy levels read more simply put, a dumpy level is a basic member in the family of optical level instruments. These are offered under the brand name of front line. You can use a dumpy level to set, measure, or transfer horizontal levels. Level instrument an instruction manual for assist the surveyor trainees understand the basics of surveying using a level instrument particularly the dumpy level. This robust, wellmade geomax zal2 dumpy level will provide you with years of reliably accurate levelling. Stepbystep guide to dumpy level survey a dumpy level also known as a builders level is an optical instrument used to establish or check points in the same horizontal plane. Dumpy level kits include a level, 5m levelling staff and a tripod with free delivery. To check the compensator accuracy, place the optical level onto a solid tripod between two staves spaced 30m to 50m apart.
Digital levelling solution with touchscreen technology and automated features providing you the most reliable results. Download download cowley level manualsread online read online cowley level manualshow to use dumpy level cowley level repairs water level try the free download at the below link appropriately named cowley automatic level manual free download. Some of manuals below, plus those for newer models can be downloaded for free. It will probably be like the one pictured, and has an eyepiece, bullseye spirit level and 3 levelling screws as well as a focus for the telescope lens quite often the base has a 360 degree compass, for laying out, however as you now know how to create perfect right. Level the instrument, reading staff a and staff b at a2 and b2. Large aperture 26xpower lens allows more light for a sharper image and excellent magnification. Optical dumpy level manual pdf pdf kindle galedeneb. At mf position, the focusing knob enables normal manual operation. A decent dumpy level should autolevel to a certain degree although it is worth checking the instrument to see that this is working as expected. Onsite hazards such as falling to ground from a low height, exposure to water and vibrations caused by heavy machinery are no problem for the robust leica na720.
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