SATURO dual head permeameter

NegotiableUpdate on 01/22

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Nature of the Manufacturer: Producers

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Overview

The fully automatic SATURO dual head permeameter is used to measure the saturated hydraulic conductivity (Kfs) of soil, which refers to the ability of porous media to conduct water under saturated and near saturated conditions. The dual head permeameter uses parallel analysis to calibrate 3D water flow, soil infiltration rate, and soil macroscopic capillary length (α), which can be directly measured rather than estimated.

Product Details

Instrument principle
Water flows in soil in three dimensions. Early permeameters were unable to solve two-dimensional and three-dimensional equations, so the dual ring permeameter was born, allowing water to flow only in one dimension inside the instrument.
Now we can use mathematical calculations, and a single ring permeameter is a simpler and better method. However, if using a single or modified measuring head, we still need to know or estimate the "alpha factor" (soil macroscopic capillary length) to solve this equation.
Reynolds and Elrick (1990) showed that solving the equation with two different water heads and calculating the alpha value allows you to obtain the saturated hydraulic conductivity of the soil without making any assumptions.
The permeameter directs water to the surface of the soil and then generates two different pressure heads using air pressure. The permeameter automatically maintains a specific water level and measures the permeation rate through two complete pressure cycles. The control unit collects all data and performs calculations to determine the saturated hydraulic conductivity (K) of the soil_fs）.

Main Features

Fully automatic penetration measurement
Timely acquisition of data, eliminating tedious post-processing
Measurement of Soil Hydraulic Characteristics - Permeability and Soil Macrocapillary Length
No need to be on duty - set up the instrument and keep it in a water filling state, maintain the correct water head, measure the infiltration rate, and the instrument will automatically calculate K_fs
Very portable - can be carried and installed by a single person
Easy installation - Install the soil ring, connect the hose, and then set the instrument parameters
Low water usage for measurement - dual head uses air pressure to maintain head pressure. No need to adjust or estimate water level
Practical verification - This automatic measurement method has been applied and verified by scientists such as Reynods and Elrick (1990)
Well designed and cost-effective - running 3-4 instruments simultaneously to help you master their spatial heterogeneity

Technical Specifications

Infiltration rate range:0.0038 - 115 cm/hr
Resolution:0.0038 cm/hr
Accuracy:± 5% of the reading
Water level:Keep at 5 cm
Pressure head range:0- 40 cm 双水头渗透计
Operating Temperature0 - 50 ℃
Charging power supply:18 V 2.2 A； 18-24 V DC
output:USB

Equipment Composition
Control unit, permeation meter measuring head, water storage bag, transmission plate, gasket, 3 hoses of different diameters, charging adapter
The composition of the instrument is shown in the figure. During operation, it is also necessary to provide a water source for filling the water storage bag, a power supply that can be connected, and a 3-pound plastic or metal hammer.

Origin and Manufacturer:the United StatesMETERCompany_{(Former Decagon)}