The line of sight is manually adjusted in the dumpy level. Difference between dumpy level and auto level civil engineering. A decent dumpy level should auto level to a certain degree although it is worth checking the instrument to see that this is working as expected. Aug 27, 2019 to use dumpy level properly, surveyors may require some operation manual. Selfleveling compensator with transport lock protects pendulum in. We offer the most comprehensive range of levels in the market today. Level the instrument, reading staff a and b at a1 and b1. Dumpy level parts and functions pdf to use dumpy level properly, surveyors may require some operation manual. Large aperture 26xpower lens allows more light for a sharper image and excellent magnification. Some levels will auto level, meaning it will do all the hard work for you. Please contact us for further information on the ruide products. Please follow the instruction properly to operate dumpy level properly. Introducing the leica rtc360 an efficient 3d reality capture solution combining a highperformance laser scanner and mobiledevice app to automatically preregister scans in the field. A buyers guide to levels one point survey equipment.
The manual automatic mode indicator on the instrument will light up when manual mode is active. The leica na720 automatic dumpy level with 20x magnification offers superior performance, value. How can i find the link to download a be prepared pdf book. Leica surveying equipment innovative range of construction lasers, site levels, leica theodolites, laser surveying, and line laser equipment. Provided by the illinois professional land surveyors association measuring vertical angles vertical angle measurements using a total station. Exporter of surveying instruments dumpy level manual, steel ranging rods, south electronic theodolite and gps with altimeter offered by roorkee survey house, roorkee, uttarakhand. Info free download books optical dumpy level manual printable 2019 we all know that reading optical dumpy level manual printable 2019 is effective, because we could get too much info online through the reading materials.
We are a leading manufacturer and supplier of a precision engineered range of dumpy level. Optical dumpy level manual printable 2019nice ebook you want to read is optical dumpy level manual printable 2019. Instruction manual for a leica dumpy level south australia. If the bubble moves out of centre it will need further adjustment. To cancel out of manual mode press the manual automatic mode button. We have gathered some pdf manual for the dumpy level instrument. A wide variety of sokkia dumpy level options are available to you, there are 60 suppliers who sells sokkia dumpy level on, mainly located in asia.
Also called a builders level, an automatic level, or a leveling instrument, these gadgets are often used in surveying buildings or land to establish relative height, distance, and bearings from different parts of a site. It came complete with its original case see figure 20. 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. 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. 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. I am sure you will love the optical dumpy level manual printable 2019. Info free download books optical dumpy level manual printable 2019 you know that reading optical dumpy level manual printable 2019 is effective, because we can easily get enough detailed information online through the resources. Setting up the automatic level learn how to set up and operate an optical level. Set the instrument over o and level it set the vernier to zero and bisect point a accurately. Detailed guide to checking your dumpy level for accuracy and. Please read this operators manual carefully before using this product.
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. Source from shanghai galaxy international trade co. Further, these are designed to suit all types of surveying environment. Produced by nathan altman, a purdue bcm spring 2009 graduate. The principal lines of the dumpy level, as illustrated in figure a1, are 1 axis of sight, 2. The auto level has an internal compensator mechanism which automatically adjusts the line of sight. Level the instrument, reading staff a and staff b at. Loose the upper clamp and turn the telescope clockwise to point b. All downloads must be accompanied by an sdr processing log. Topcon atb4a automatic dumpy level 24x automatic levels. Sokkia dumpy levelauto level b40, view dumpy auto level.
The tape must be held as close to level as you can and on line while making measurements. Instruction manual auto level atg4 atg6 foreword thank you for purchasing the topcon green label auto level atg series. 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. To check the compensator accuracy, place the optical level onto a solid tripod between two staves spaced 30m to 50m apart. Difference between dumpy level and auto level civil. This manual is produced to assist the surveyor trainees understand the basics of surveying using a level instrument particularly the dumpy level. User manuals, bosch laser level operating guides and service manuals. Apr 16, 2009 doug keith, a professor at purdue university, demonstrates the dumpy level. These are offered under the brand name of front line. The cowley level was invented by australian keith cowley in 1944. It came complete with its original case see figure 20 and. Productspecific treatment and waste management information can be downloaded from the. Study of components of dumpy level and leveling staff.
Pentax ap220 dumpy level automatic dumpy levels afgen. The cross hairs are brought into focus by rotation of the eyepiece and the focusing knob. And if you need any repairs for any reason there are qualified people in our repair shops all over the u. To use dumpy level properly, surveyors may require some operation manual. Bosch laser level user manuals download manualslib. The following dumpy level operators manual is provided with sokkia b40 instrument. Survey field procedures manual prepared by the division of plats and surveys. A dumpy level also known as a builders level is an.
This otb user manual french pdf pdf kindle is delivered in simple words. 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. Some levels will autolevel, meaning it will do all the hard work for you. Refer to the following resources for all na720724728730730 plus documentation. Source from shanghai hexin survey instrument company ltd. 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. To adjust the grade, press the grade adjustment arrows on either the instrument or remote control. Here you will find all available manuals which you can download view andor print for dave white sitepro brands instruments and tools. Free download books manual sokkisha auto level printable 2019 everybody knows that reading manual sokkisha auto level printable 2019 is beneficial, because we could get a lot of information in the reading materials technology has developed, and reading manual sokkisha auto level printable 2019 books might be more convenient and much easier. A dumpy level does not refer to a level far past its prime, but rather to an instrument used to measure, transfer, or set horizontal lines.
Doug keith, a professor at purdue university, demonstrates the dumpy level. Download and view user manuals dave whites sitepro. For the best performance of the instruments, please read these instructions carefully and keep them in a convenient location for future reference. But itll help you get the best possible performance from all of our instruments. Optical dumpy level manual printable 2019optical dumpy level manual printable 2019 is the best ebook you need. Read both the verniers, the mean of the verniers will give the angles aob. 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. It is difficult to make an accurate measurement with the dumpy level. Optical dumpy level manual printable 2019 read ebook online at brazilfilmfestival. The leica na720 automatic dumpy level with 20x magnification offers superior performance, value and extreme robustness.
Berger manual of field adjustments antique surveying. A dumpy level also known as a builders level is an optical instrument used to establish or check points in the. Dumpy level doug keith, a professor at purdue university, demonstrates the dumpy level. They are maintained in pdf format for easy download and view. One full size drawing sheet for lsection and cross section. Detailed guide to checking your dumpy level for accuracy. These arrows will adjust the grade on either the xaxis or yaxis. One of the best books of the year is a book titled otb user manual french pdf pdf download free that gives the reader a good inspiration. Level the instrument, reading staff a and staff b at a2 and b2. 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. It is a continuation of the first course held in the same. The measurement accuracy of the auto level is higher than the dumpy level.
Surveying instruments dumpy level manual exporter from. The pentax ap220 dumpy level has proven to be a popular choice among professionals thanks to its affordable nature when compared to other levelling equipment without sacrificing accuracy. Oct 18, 2017 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. Optical dumpy level manual printable 2019 read online at rhodeislandonline. Our recommended dumpy levels are the leica na700 range which offers high performance at an affordable price. As an entry level designed for ease of use and guaranteed productivity, this pentax product is the first choice for many looking to get the job done quickly.