The DPV40 Pivot Stem (Voltage) Dendrometer is used to measure stem circumference changes over 5-40mm. The linear output, in milivolts, can be converted to a raw stem circumference over the measurement range.
The DPV40 features voltage output for compatibility with a range of data logging solutions.
The DPV40 is also available with SDI-12 output (DPS40).
Sensor has to be placed on a relatively straight and regularly shaped stem (or branch) such that the plastic cover of the electronics does not touch the measured object. The cable has to be fastened to the stem in order to avoid its influence on the sensor position. The label on the black plate on the jib must be visible – it must point outwards of the stem.
|Measurement Range:||5 to 40mm Diameter|
|Linearity:||± 0.5% of full scale|
|Input Voltage:||5 to 12V DC|
|Current Consumption (Idle):||20 µA|
|Current Consumption (During Measurement):||6 mA|
|Tightening Strength:||1.5 to 2N lateral levers, 2 to 3N central sensing jib|
|Temperature Measurement Accuracy:||±0.2°C|
|Operating Environment:||-40 to 60°C|
|Warm-up Time:||300 ms|
|Connection:||Three wire Escha M8 connector (male)|