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HD3901 – Leaf Wetness Sensor
Brand: Delta OHM S.R.L.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 of 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 is 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.
Features- Reliable reproduction of the thermodynamic properties of a leaf
- Capacitive measurement principle for an accurate detection of even the smallest drops of water
- Double Sensitive Surface
- High resistance to chemical and atmospheric agents
- It can be installed in the field thanks to the IP67 degree of protection
Specifications
Brand
Measurement Principle
- Capacitive
Measurement Range
- 0 to 100 % of leaf area wetness
Accuracy
- ± 5 %
Power Supply
- 5 to 18 Vdc
Consumption
- < 1 mA
Output
- Analog 0.5 to 3 V
Operating Temperature
- -30° to +60° C
Dimensions
- 61 x 115 x 11 mm (excluding cable). Width of the sensor 1.6 mm
Cable
- 4 poles with open wires at the end, length 5 or 10 m to be defined when ordering
Weight
- About 100 g (including the 5 m cable)
Protection Degree
- IP67
- Agriculture
- Floriculture
- Study of Phytopathogen Models Forecasting