Brief introduction: SWP - 100 portable soil water potential tester using the tension meter principle combination of one or more probe method, this paper improves traditional technology, can only purchase one instrument, hundreds of water potential probe measuring several tasks to complete, it not only ensure the precision of determination of the water, and reduce the cost of the multipoint observations.. Suitable for farmland and potting soil moisture determination, the probe can be buried in the ground different depth and different measured plots, so if you want to know some point of the water can to pass the instrument through to the probe, can read values. Can locate in the field test and observation of soil water potential, which can further obtain soil moisture, soil water properties parameters such as hydraulic conductivity. Technical indicators: 1. Measuring range: 0 ~ 100 kpa 2. Precision: the accuracy of plus or minus 1 kpa. Display of digital display unit for thousands of PASCAL (KPa). 3. The ambient temperature: 0 ~ 60 ℃ 4. Instrument by the second number 5, batteries, battery voltage from 1.2 v to 3 v change instrument zero point and sensitivity constant). 5. Users can according to your request to purchase a different number of tension meter probe. 0 to 10 Kpa: said moisture, humidity is too high for most crops. 10 to 30 Kpa: wet, suitable for most of the crop growth. 30-50 Kpa: dry, hygrophilous plant has needs water. > 50 Kpa: dry, most of the crop needs
SWP - 100 portable soil water potential tester using the tension meter principle combination of one or more probe method, this paper improves traditional technology, can only purchase one instrument, hundreds of water potential probe measuring several tasks to complete, it not only ensure the precision of determination of the water, and reduce the cost of the multipoint observations..
