Tension Infiltrometers
Tension infiltrometers are designed to measure the unsaturated hydraulic properties of soils. Water is allowed to infiltrate soil at a rate which is slower that when water is ponded on the soil surface. This is accomplished by maintaining a small negative pressure on the water as it is infiltrating into the soil. By applying a small negative pressure (or tension) on the water as it is infiltrating, water will not enter the large cracks or wormholes, but infiltrate into the soil matrix. As a result the measurements obtained with a tension infiltrometer are more representative of the soil as a whole.
Light weight, portable Iowa State tension infiltrometers for field or lab
Features:
• Tension infiltrometer for on site determination of hydraulic properties
• Tension infiltrometer can be used with disc separated from the water tower, or mounted under the water tower
• Tension infiltrometer requires low volume of water
• Easy adjustable tension settings
• Flow rates can be determined from changes in height of the water column
• Flow rates can also be determined from changes in height of the water column measured with a Tensimeter
• Optional pressure transducers and data logger allow electronic data collection from tension infiltrometer
• The tension infiltrometer is made of Polycarbonate and plexi-glass materials
• The tension infiltrometer has a replaceable nylon mesh screen membrane
Results are plainly clear when you’re using the 2826 series of Tension Infiltrometers since everything is produced from crystal clear acrylic allowing you to see it all. Made from durable acrylic, this unit is light weight and easy to tote to the field. A great tool for the lab as well in teaching others. When more precise and accurate measurements are required, one may think of using a smaller D08 size infiltrometer which will measure with more sensitivity due to its smaller reservoir and accelerated water drops. The 2826 are porous membrane surface interface designs for speedy reactions. The 2826D20 Reservoir holds 1.65 Liters and the smaller D08 model reservoir holds 410 ml, bubbler is similar for both having 0-28 mb of tension settings.
The model 2826D Tension Infiltrometer comes in two sizes a 3.1” (8-cm) or 7.8” (20-cm) diameter system. With adjustable head heights, low volume of water used to obtain qualified data, and the ability to add pressure transducers to automate, makes the 2826D a serious choice for the researcher.
A field rugged carrying case is a valuable option for this unit protecting your instrument and investment during transport and storage. To add this feature add “CS” to the product number.
Ordering Information
2826D08 TENSION INFILTROMETER, 8 cm dia. tension disc., comes complete no carrying case
2826D08CS TENSION INFILTROMETER, 8 cm dia. tension disc, comes complete with case.
2826D08UCS CARRYING CASE, for 2826D08 Tension Infiltrometer, only no infiltrometer
2628D08 Series
2826D20 TENSION INFILTROMETER, 20 cm dia. tension disc., comes complete no carrying case
2826D20CS TENSION INFILTROMETER, 20 cm dia. tension disc, comes complete with case.
2826D20UCS CARRYING CASE, for 2826D20 Tension Infiltrometer, only no infiltrometer
In the case Dim. 42" L x 15" W x 10" H (106.7"cm L x 38.1cm W x 25.4cm H),
Weight 21 lbs (9.5 kgs)
No case Dim. 41" L x 11" W x 10" H (104.1"cm L x 27.9cm W x 25.4cm H),
Weight 13 lbs (5.9 kgs)
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