2 edition of Calibration and testing of selected portable flowmeters for use on large irrigation systems found in the catalog.
Calibration and testing of selected portable flowmeters for use on large irrigation systems
Richard R Luckey
by U.S. Dept. of the Interior, Geological Survey, Water Resources Division in Denver
Written in English
|Statement||by Richard R. Luckey, Frederick J. Heimes, and Neville G. Gaggiani|
|Series||Water resources investigations -- 80-72|
|Contributions||Heimes, Frederick J, Gaggiani, Neville G, Geological Survey (U.S.). Water Resources Division|
|The Physical Object|
|Pagination||iv, 21 p. :|
|Number of Pages||21|
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Calibration and testing of selected portable flowmeters for use on large irrigation systems. Denver: U.S. Dept. of the Interior, Geological Survey, Water Resources Division, (OCoLC) Calibration and testing of selected portable flowmeters for use on large irrigation systems / By Richard R.
Luckey, Neville G. Gaggiani, Frederick J. Heimes and Geological Survey (U.S.). Water. yield relatively large quantities of water to wells. Hydraulic conductivity, together with saturated thickness of the aquifer system, provides a means for estimating the transmissivity of the aquifer system at a selected Author: Robert A.
Pettijohn, Hsiu-Hsiung Chen. We recommend that you register using the same email address you use to maintain your ASCE Member account. Email. Returning user Can't sign in.
Forgot your password. Enter your email address below. Wet Calibration. A wet calibration, using actual fluid flow, normally provides the highest calibration accuracy for a flowmeter and sees use where accuracy is a prime concern or when the form of the meter does not lend itself to other methods.
Precision flowmeters usually see wet calibration. Irrigation and Waterways: Irrigation districts and large water projects use Accusonic flow meters for accurate accounting of canal flows.
With Calibration and testing of selected portable flowmeters for use on large irrigation systems book channel flow-measurement accuracy up to ± %.
The standard that you use to calibrate a flowmeter must be accurate enough to perform the calibration. The general rule of thumb is that your standard should be four times Calibration and testing of selected portable flowmeters for use on large irrigation systems book accurate than the device under test (DUT); however, this can vary depending on the requirements of the calibration.
Most flowmeter manufacturers have their own flowmeter calibration facilities for performing this initial calibration. An exception is flowmeters that need to be tested under special conditions that may not be easy to duplicate for a flowmeter manufacturer.
For example, large line size gas ultrasonic flowmeters for custody transfer applications need to be tested. Weirs and Flumes Flow Measurement A very different style of variable-area flow meter is used extensively to measure flow rate through open channels, such as irrigation ditches.
If an obstruction. Flow Measurement is the process of measuring fluid in your plant or industry. You can measure flow through a variety of different devices such as Coriolis, differential pressure, vortex, magnetic. Industrial & Scientific Lab Test & Measurement Safety Janitorial & Facilities Food Service Education Material Handling Materials Metalworking Electrical FSA Eligible Items Deals of results for Industrial & Scientific: Test.
UK Flowtechnik offers a full calibration and repair service for a wide range of instrumentation products. Flow meter calibration. Flow Meter Calibration. Flow calibration is available on most flow meter types: variable area, positive displacement, mass flow & axial turbines.
Calibration. Alkaline / Caustics flow meters Chemical flow meters Flow meters recommended for use with alkaline or caustic bases, if you require any further help or information then please contact us.
Please select the. Single-Use flowmeters (Figure 1) are used in high hygiene applications such as biopharma, food, or semiconductor fabrication when a CIP option is not optimal.
Sensor types include invasive sensors that come in contact with the working fluid and are discarded after each use. plainly marked on the outside as “Large Water Meter Testing and Calibration Services” Proposer’s name, address and his/her license number, if applicable.
If forwarded by mail, the sealed envelope File Size: 48KB. The 6-inch steel and 6-inch PVC pipe were used to evaluate the extremes of pipe roughness normally found in irrigation systems. For comparison purposes, four flow rates typically found in irrigation systems (, and gpm) were evaluated.
A Polysonics Model ISTT-P portable transit-time USFM was used. Chapter 6 Irrigation System Design Part Irrigation Guide (vi-NEHIG Amend.
NJ1, 06/) NJ Fixed Systems include solid set (portable or permanent pipeline). There are enough laterals and sprinklers that none have to be moved to complete an irrigation. b) field calibration of flow meters and flow measurement: • Flowmeters of types such as Electromagnetic, Ultrasonic or any other types are calibrated by secondary method using a pre-calibrated Ultrasonic Clamp-ON type flowmeter.
found in irrigation systems. For comparison purposes, four flow rates typically found in irrigation systems (, and gpm) were evaluated. A Polysonics Model ISTT-P portable transit-time USFM was used for this experiment.
Flow rate measurements were taken at 2,10, 22, and 50 Dp downstream from the flow disturbance. Calculating flow rates through ducts, pipes, hoods and stacks (collectively called ducts for our purposes), has never been difficult. The cross-sectional area of the duct is multiplied by the average air velocity.
Pdf Flow Measurement Accuracy Using a Portable Irrigation Turnout Calibration Unit. In California, this has often occurred with conversions to pressurized irrigation systems which commonly include the installation of pipeline flow meters as part of the on-farm system.
However, a large portion of irrigation .Surface-water irrigation systems rely on water diverted or pumped from a river, stream, lake, or reservoir.
use of test results to estimate annual seepage loss is not appropriate. R.R., Heimes, F.J., and Gaggiani, N.G.,Calibration and testing of selected portable flowmeters for use on large irrigation systems.Ebook Report: Standard APPLICATIONS N.I.S.T.
Available • Agriculture Irrigation • Turf Irrigation Systems • •Micro Irrigation Systems • HVAC • EMS (Energy Management Systems) • BAS (Building Automation Systems.