Circumference Dendrometer 2 (DC2)

The DC2 and DC3 are the improved versions of the DC1. The sensor receives the circumference signal by means of a stem embracing cable wire. The cable wire consists of a special material (purpose speci

  • Product Name:Circumference Dendrometer 2 (DC2)
  • Item No.:DC2
  • Manufacturers:Ecomatic
  • Country of Origin:Germany

The DC2 and DC3 are the improved versions of the DC1. The sensor receives the circumference signal by means of a stem embracing cable wire. The cable wire consists of a special material (purpose specific alloy), with the lowest thermal expansion coefficient available. The elastic force of the sensor is not applied in tangential, but in radial direction (Please note the essential difference between the various circumference dendrometers). With this physical layout, the pressure of the wire cable to the tree adjusts automatically with the diameter The data of different tree sizes is comparable. Additionally to the cable wire, the sensor is firmly fixed with two additional weatherproof rubber bands. The slide rings reduce the friction between the wire cable and the tree bark. They also decrease the pressure on the tree.


Advantages

  • Suitable for all diameters (> 5 cm)

  • Physical layout automatically adjusts contact pressure between wire cable and surface according to diameter, therefore good comparability between measurement data of trees with different diameter

  • No injury to plants

  • Stability against wind, snow, falling small branches and small fruits

  • Easy installation

  • Easy adjustment by the integrated turnbuckle


Limits

  • The data must be converted (free Excel program available)

  • The tree must be roughly circular


Delivery

  • Complete with 5 m cable and 1 m wire cable

  • Options / Ordering Information

  • Cable extension (please specify in meters)

  • Extension of the wire cable (please specify in meters)

  • Free Excel program for data conversion

  • Data Logger


Suitable for tree size      Diameter>5 cm

Range of the sensor        15 mm

Range of dendrometer

With reset         unlimited

Without reset for tree diameter of 10 cm       9.9 mm in Diameter

Without reset for tree diameter of 50 cm       6.6 mm in Diameter

Without reset for tree diameter of 100 cm      5.2 mm in Diameter

Accuracy          ±2 µm ± 0.12% (CR1000 Logger)

Resolution          0.3-3.6 µm (dependent on used data logger) 

Linearity                 2%

Thermal expansion coefficient of the wire cable          <1,4 ×10-6/K

Operating conditions         -25 to 70 °C air temperature, 0 to 100% relative air humidity