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Mini Disk Infiltrometer
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Mini Disk Infiltrometer Model S
Mini-disk Infiltrometers provide quick and convenient measurement of soil hydraulic conductivity. The infiltrometer is constructed of a polycarbonate tube with a semi-permeable stainless steel sintered disk. An adjustable steel tube is installed above the sample chamber to regulate the suction rate. The infiltrometers are ideal for soil hydrology studies, classroom instruction, and many other applications that rely on accurate measurement of hydraulic conductivity. The suction rate can be adjusted to accomodate measurement of any soil type.
Product Description
How it works:
The process is simple. The infiltrometer is immersed in water and the rubber stopper is installed while it is still underwater. When taken out of the water, it will not infiltrate until the water tension on the disk is broken. The disk is placed on the soil surface, and the volume change is recorded at regular intervals.
Welcome to the mini disk infiltrometer for measuring soil hydraulic conductivity. The infiltrometer will enable you to measure the hydraulic conductivity of any soil accurately and affordably.
How it Works
The upper and lower chambers of the infiltrometer are both filled with water. The top chamber (or bubble chamber) controls the suction. The lower chamber contains a volume of water that infiltrates into the soil at a rate determined by the suction selected in the bubble chamber. The lower chamber is labeled like a graduated cylinder, with volume shown in mL. The bottom of the infiltrometer has a porous sintered stainless steel disk which will not allow water to leak in open air. The small diameter of the disk allows for undisturbed measurements on relatively levelsoil surfaces.
Once you place the infiltrometer on a soil, water begins to leave the lower chamber and infiltrate into the soil at a rate determined by the hydraulic properties of the soil. As the water level drops, you record the volume at specific time intervals (like every 30 seconds for a silt loam soil). You can then plot this data using a spreadsheet (included on CD-ROM with the infiltrometer) to calculate the hydraulic conductivity.
Specifications
Total Length - 32.7 cm
Diameter of tube- 3.1 cm
Sintered stainless steel disc: 4.5cm dia.,3 mm thick
Length of suction regulation tube: 10.2 cm
Suction range: 0.5 to 6cm of suction
Length of water reservoir: 21.2 cm
Length of Mariotte tube: 28cm
Volume of water required to operate: 135ml