Also explain about installation procedure of each component in a grade rod along with precautions for using that particular component of the grade rod. The LaserLine Direct Reading Laser Grade Rod is specifically designed for use with laser detectors. No special rail for the laser detector. They are white, orange and red to make for easy reading and can be placed anywhere on the rod. How to Read an Engineer's Grade Rod. For use with optical levels (for use with a laser and detector, use a direct reading laser rod such as the GR1000 or GR1000T which have a track allowing you to slide the detector up and down). The leveling rod must be placed on the correct point exactly and held plumb throughout its usage. The tape lock pin is safe and will not puncture or rip the tape when pushed against it. Grade Rods should be dried immediately if they become wet, and they should never be exposed to chemicals that could corrode or damage them. This designation refers to rods that have graduations that measure in feet and tenths and hundreds of a foot. Tape has heavy duty matte textured face: Easy on the eyes in bright sunlight and protects the tape numbers from wearing and fading. All future readings will be true elevation above or below 2, 525.
TOUGH - LIGHTWEIGHT - VERSATILE. Laser Version Direct Reading/True Elevation Rod: For use with a laser detector. The grade rod method determines the amount of moisture in the wood, as well as its strength and quality based on a series of physical tests. Models to choose from: Laser version Direct Reading is a grade rod with a moveable tape face allowing you to set the actual benchmark elevation, or any elevation, above or below the bench into the rod. Grade rods also have different materials depending on whether they're used for temporary installations or long-term ones. The LR-PRO series rods have a larger diameter so that it is sturdier and easier to read at higher heights. Brackets not included. SECO's only catalog reference to a Philly rod is metric. 4-Foot Rod Extension: Allows you to extend the GR1000 Series Direct Reading Grade Rods in 1-foot increments up to 4 additional feet. Roll the tape face until 5. Always collapse the Grade Rod before transporting it and never drag the instrument. Having a visual will help us identify the part number for you. It's a very simple tool, but it has become an essential part of many different industries and activities.
The instrument is then leveled and adjustments are made to correctly make new measurements. There is a special rail slide and LaserLine detector bracket** that lets the laser detector travel the full working length of the direct elevation rod. Aluminum front and rear rods. For use with a laser detector. You'll also want to think about how far out from your survey point you plan on getting measurements; shorter rods are typically easier to use because they minimize measurement errors caused by changes in elevation over longer distances. This is possible because the rod face is actually a continuous flexible tape mounted on rollers within the frame of the rod which can be locked down once set. UB-1 Universal Bracket: Works with virtually all receivers. When I first began working for Vectors Inc. almost four years ago I walked into an entirely new world filled with strange equipment.
B Finish Floor Elevation 2353. However, professional inspectors use levels just as much if not more than others; its importance should never be underestimated since you will see some sort of gauge device throughout an inspector's tool belt wherever he goes for a service call. This task often requires leveling instruments. A Grade Rod or leveling rod, is a graduated rod used to determine differences in elevation. Inches are marked by black numbers. View all grade rods from Johnson Level. Instead of moving the rod from the turning point, the instrument is moved to a new location. The lower section is shortened or lengthened to make the marked section be visible. A Level is mostly used by constructors to establish whether one surface plane is level or parallel with another plane. Understanding Grade Rods. Direct Reading, or True Elevation (also known as Lenker style) is a Grade Rod with a moveable tape face.
In surveying, determining the elevations or differences in heights can significantly help when leveling, establishing grades, or excavating. Builder's/Architect's Rod. SECO classifies their leveling rods in groups determined by their shape. The actual true elevation above sea level, is read on these rods, thus eliminating errors caused by adding or subtracting.
In addition to length and diameter, grade rods come in two different types: rigid and flexible. 2 Models to Choose From: - GR1450T — 15 foot rod measured in feet, tenths and hundredths. Traditionally, leveling rods come in one piece or adjustable telescoping segments and can be made of a variety of materials like wood, plastic, or aluminum. Read across from the detector pointer and the tape will tell you how much to cut or fill. This system was developed in Canada, and has since been adopted by the American Lumber Standards (ALS) and American National Standards Institute (ANSI). It is equipped with a special rail for laser detector that lets it slide through the full working length of the rod offering faster and easier readings.
Engineer's rods have graduations that are measured in feet, as well as tenths and hundredths of a foot. Regularly, a customer will ask for something I have never heard of. Solid tape lock with internal brake slide: Allows for a strong, trouble-free operation. Aluminum rods may adjust length by sections telescoping inside of each other while wooden rods have sections that are attached to each other with slip joints.
Each foot on the Philly rod is divided into hundredths of a foot. With its tough DuPont nylon parts, it is highly durable to endure heavy use at job sites. For leveling rods with metric graduations: - Tenths of meters - marked by huge numbers. Introduction of Grade Rod. Divided into feet, inches, and fractions of inches. Many grade rods come with protective caps that keep any rough edges from damaging surfaces and getting in accidents between uses.
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