Irrigation Downloads
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LWS Dielectric Leaf Wetness Sensor - Brochure
Direct measurement of leaf wetness is problematic. Secure long-term attachment of a sensor to a representative living leaf is difficult. Leaf position, sun exposure, and health are in constant flux. To avoid these problems, leaf wetness sensors have been developed to estimate by inference the wetness of nearby leaves. The LWS estimates leaf surface wetness by measuring the dielectric constant of ...
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Model LWS - Leaf-Wetness Sensor - Brochure
The LWS, manufactured by METER Environment, can detect small amounts of water or ice on the sensor surface for leaf wetness applications. Because the LWS measures the dielectric constant of the sensor’s upper surface, it can detect the presence of water or ice anywhere on the sensor’s surface. The LWS is designed to be deployed either in the canopy or on a weather station mast. Two ...
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Aadcon - Model WET - Leaf Wetness Sensor - Technical Datasheet
WET The ADCON Leaf Wetness Sensor was developed to provide users with a robust and low maintenance alternative to the traditional style sensors using sheets of paper or human or animal hair. A grid of conductive tracks, etched onto a Teflon-coated ceramic plate reliably simulates the surface of a leaf and outputs a range of readings between 0 and ...
By OTT HydroMet
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Aadcon - Leaf Wetness Sensor - Brochure
The Adcon Leaf Wetness Sensor was developed to provide users with a robust and low-maintenance alternative to the traditional style sensors using sheets of paper or human or animal hair. A grid of conductive tracks, etched onto a Teflon-coated ceramic plate reliably simulates the surface of a leaf and outputs a range of readings between 0 and 10. In order to properly simulate the behavior of a ...
By OTT HydroMet
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Hydroponics - Application Bulletin
A technique of growing plants in nutrient solution”. Hydroponics literally means water-working or wateractivation. It is a cultivation technique for growing plants in highly oxygenated, nutrient enriched water, rather than soil. The nutrient solution and its management are the cornerstone for a successful hydroponics system. The function of a hydroponics nutrient solution is to supply the ...
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AG-STIK - 599A - Systems Datasheet
applications: • Agriculture • Irrigation • Fertigation • Holding Tanks/ponds • Turf • Dairy • Aquaculture • and others ...
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Ecomatik - Model SMT100 - Soil Moisture and Soil Temperature Sensor - Technical Data Sheets
The SMT100 soil sensor allows for easy, inexpensive soil moisture and temperature measurements. This device enables both the precise analysis of the soil water balance and the determination of plant soil water availability. The SMT100’s integrated temperature sensor additionally provides important data on ground temperature. The device’s numerous applications range from data ...
By Ecomatik
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Ecomatik - Model SF-G - Sap Flow Sensors - Manual
Sap flow sensors are used to continuously measure water uptake in woody plants. The SF-G model corresponds to the classic, two-needle model developed in 1985 by André Granier. ...
By Ecomatik
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McCrometer - Model FS200 - Flow Straightener- Specification Sheet
Eliminate upstream and downstream pipe. Advanced Flow Straightening with Propeller Technologies. In addition to our FS100 Flow Straighteners, the FS200 Flow Straighteners are designed for easy, non-intrusive installation into 10- and 12-inch lines. This patented, sleek new design provides farmers, irrigation dealers, and water districts a solution when space is an issue. The FS200 is specially ...
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McCrometer - Model FS100 - Flow Straightener - Specification Sheet
Eliminate upstream and downstream pipe. Advanced Flow Straightening with Propeller Technology. Farmers, irrigation dealers and water district engineers will find the McCrometer Mc Propeller Meter and the FS100 Flow Straightener are the ideal solution for water metering programs in agriculture and turf irrigation. The Mc Propeller's advanced design delivers highly accurate liquid flow measurement ...
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Oxygen Counts in Depth - Plants Respond to Flooding - Application Bulletins
Plant cells need oxygen for mitochondrial aerobic respiration in order to produce energy. Especially dense, bulky or metabolically active tissues (fruits, seeds, meristem and phloem) often face oxygen deficiency even when external oxygen is available. In water the diffusion of oxygen is about 10,000 times lower than in air (depending on water temperature) so plants exposed to flooding and soil ...
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How to get the most from your Delta-T Devices WET Sensor - Technical Note
The WET Sensor is widely used in horticulture and it is a trusted tool for many growers for effective substrate and fertigation management. But is the WET Sensor always used to its full potential and configured to give you the most accurate results? This poster looks at a few aspects of the WET Sensor you may not be familiar with or fully ...
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Penman-Monteith Evapotranspiration in GP2 Logger Controller - Technical Notes
The GP2 Data Logger and DeltaLINK software (versions 3.7 and later), in combination with relevant sensors, enables the full ASCE/FAO-56 Penman-Monteith equation for calculating crop reference evapotranspiration (ETo). ETo calculated by the GP2 Data Logger uses measurements of relative humidity, wind speed, solar radiation, and air temperature, so sensors for these must be present. This ETo ...
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Example Use of Time of Day in the DeltaLINK - Technical Note
Time of Day is available as a control variable in DeltaLINK version 2.3 or later. This example describes its use for turning off an irrigation system at night. During the day the irrigation is controlled by the soil moisture content ...
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How the DeltaLINK Control Logic Works - Technical Note
Simple Pulsed Irrigation: This diagram illustrates how the DeltaLINK control logic works when the GP1 or DL6 logger is used for irrigation control. The irrigation is based on the soil moisture level. This is more efficient that simple timer-based controllers. Time of day can however be added to the conditional logic, to prevent watering at night, for ...
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Delta-T - Model EQ3 - Equitensiometer - User Manual
The EQ3 Equitensiometer (EQ3) measures soil matric potential and temperature. Soil matric potential is the negative pressure (or suction) required to extract water from between the matrix of soil particles. It is an important indication of plant water stress. The value of soil matric potential measured depends mainly on the quantity of water present and the make-up of the soil, though it is also ...
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Delta-T - WET Sensor Datasheet
The WET Sensor from Delta-T Devices is essential equipment when accurate measurement in soil and substrates is vital to your business The Delta-T WET Sensor has crucial applications in precision horticulture and soil science research, and is usable in both soils and growing substrates. It is exceptional in its ability to measure pore water conductivity (ECp), the EC of the water that is available ...
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Delta-T - Model EQ2 - Equitensiometer - Manual
The Equitensiometer measures soil matric potential - that is the negative pressure (or suction) required to extract water from between the matrix of soil particles. It is an important indication of plant water stress. The value of soil matric potential measured depends mainly on the quantity of water present and the make up of the soil, though it is also affected by temperature and ...
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Delta-T - Model AP4 - Leaf Porometer - Datasheet
The AP4 Porometer measures stomatal aperture in terms of leaf conductance to water vapour. This is a major determinant of water loss from plant leaves and of CO2 uptake in ...
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Delta-T - Model AP4 - Leaf Porometer - Manual
The AP4 is a cycling porometer. It is used for measuring the stomatal resistance of plant leaves. This is a measure of the resistance to loss of water vapour through the stomata and is an indicator of the physiological state of the plant. Stomata are sensitive to light, carbon dioxide, pollutants and water stress and pathogens. The AP4 provides an important tool for unravelling and understanding ...
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