The HD3901 leaf wetness sensor detects the presence of condensation on its sensitive surface and has been designed to reproduce in an extremely accurate way the thermodynamic behaviour of a leaf. The leaf wetness degree is a basic information in the agricultural and floriculture fields to determine the most appropriate phytosanitary treatment to prevent mould and fungal infections in general that can affect the plants and crops in the presence
of condensation on the leaves.
The double sensitive surface allows to determine the wetness degree both on the top and on the bottom the leaf, important feature to get accurate indications, being that the two sides of the leaf have different drying times.
In order to ensure a long duration of the sensor, the surface of the sensor is specially treated to resist to the atmospheric agents and to the chemical agents present in pesticide products.
The circuit board, protected inside a sealed housing made of plastic material, allowing to achieve reliable measurements even in environments with high condensation.
The sensor is already supplied with factory-calibration and does not require any calibration by the user.
The output is 0.5 … 3 V analog voltage with a fixed 5 or 10 m connecting cable. Power supply 5… 18 Vdc.
Instrument for the Analysis of the Indices: WBGT, PMV, PPD
HD32.3 – WBGT – PMV Index is an instrument made by Delta Ohm Srl for:
– Analysis of hot environments using WBGT index (Wet Bulb Glob Temperature: wet bulb temperature and Globe thermometer) in presence or absence of solar radiation
– Analysis of the moderate warm environments using PMV index (Predicted Mean Vote) and PPD index (Predicted Percentage of Dissatis ed)
HD2030 is a portable vibration analyzer performing spectral and statistical analysis on four channels simultaneously. The instrument measures all parameters required by current regulations concerning workers protection from vibration related risks and is able to measure vibrations transmitted to both hand-arm and whole body.
The LP Silicon-PYRA 04. pyranometer measures the global solar radiation (W/ m2) by using a silicon photodiode (350nm-1100nm). The special geometry and the diffuser allow to have a pyranometer field of view of 180 degrees according to cosine law.