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Enabling better global research outcomes in soil, plant & environmental monitoring.

DD Ecomatik Diameter Dendrometers (S-L Stems)

Diameter Dendrometers

Ecomatic Diameter dendrometers are designed specifically for measuring changes in diameter in agricultural plants, small trees and branches (diameter <5cm).

Due to the optimized mounting method, the dendrometer provides stable readings also for very small plants. The sensor remains stable fixed at the measuring point without exerting excessive pressure on the measuring point.


Type Name For Diameter Of Measurement Range
DD-S1 Diameter Dendrometer Small 0-5 cm 11 mm
DD-S2 Diameter Dendrometer Small
(quick mount version)
0-5 cm 11 mm
DD-L1 Diameter Dendrometer Large 3-30 cm 11 mm
DD-L2 Diameter Dendrometer Large
(for fast growing species)
3-30 cm 25.4 mm
DD-L3 Diameter Dendrometer Large
(for very fast growing species)
3-30 cm 50.8 mm
DDW Diameter Dendrometer (rugged) 3-20 cm 11 mm

Diameter Dendrometers (Small)

The DD-S Type dendrometers are designed specifically for agricultural plants, small trees and branches diameter <5cm). Due to the optimized mounting method, the dendrometer provides stable readings also for very small plants. The sensor remains stable fixed at the measuring point without exerting excessive pressure on the measuring point. The sensor is available in two versions: DD-S1 with standard mounting frame, DD-S2 with quick mount frame.

Advantages

  • Suitable for small trees and agricultural plants
  • Plants do not have to bear the weight of the dendrometer (with separate support construction for very small and delicate plants)
  • No injury to plants
  • Minimal contact pressure on the plant
  • Stability against wind, snow, falling small branches and small fruits
  • Plant size specific ordering possible within the 0 to 5 cm diameter range

Limits

  • Not suitable for diameter greater than 5 cm (see Type DD-L)

Delivery

  • Complete with 5 m cable
  • Fixing materials and installation tools (wrench)

Options / Ordering Information

  • Cable extension (please specify in meters)
  • If necessary, different frame size
  • Data Logger

Diameter Dendrometers (Large)

DD-L type dendrometers are mounted at the plant with two elastic, and uv-resistant rubber belts. With this easy and very stable fixation, the sensor remains at the desired measuring point, without exerting excessive pressure on the stem. The sensor is available in three versions: DD-L1 with standard measuring range of 11mm for slow and normal growing species and DD-L2 and DD-L3 with increased measurement range of 25mm and 50mm respectively, for fast growing species. Both models are suitable for stem diameters between 3-30cm.

Advantages

  • Suitable for diameter 3-30 cm
  • No injury to plants
  • Minimal load on the target
  • Stability against wind, snow, falling small branches and small fruits
  • Plant size specific ordering possible within the 3 to 30 cm diameter range

Limits

  • Not suitable for diameter greater than 30 cm

Delivery

  • Complete with 5 m cable
  • Fixing materials and installation tools (wrench)

Options / Ordering Information

  • Cable extension (please specify in meters)
  • If necessary, different frame size
  • Data Logger

 

Diameter dendrometer Small
Type DD-S1 (former name DD-S) Type DD-S2
Use area slow/normal growing,
woody and herbaceous species
standard mounting framefast,
toolless installation
Suitable for plant size Diameter 0-5 cm
Range of the sensor 11 mm
Resolution The resolution of the sensor itself is infinite.
The resolution of readings is determined by connected data logger,
e.g.:CR1000 (differential w/i): 1.5 μm
Dendrometer logger DL18: 0.2 μm
Accuracy Dendrometer dependent: max. ±4.5% of reading (stable offset) Logger dependent, e.g.: CR1000: ±(0.04% of reading +4.4 μm)
Dendrometer logger DL18: ±0.1%
Temperature coefficient of the sensor < 0.2 μm / °C in the whole range
Linearity <1%
Environment Outdoor condition: -25 to 70°C air temperature, 0 to 100% relative air humidity
Weight of the sensor 13 g without cable 15 g without cable
Power supply Stabilized Vex of 0.5 –10 VDC, power consumption practically zero
Material Stainless steel and Aluminium
Cable length 5 m, extendable up to 100 m

 

 

Diameter dendrometer Large
Type DD-L1 (former name DD-L) Type DD-L2 Type DD-L2
Use area slow/normal growing species fast growing species
Suitable for plant diameter stem diameter 3-30 cm
Range of the sensor 11 mm 25.4 mm 50.8 mm
Resolution The resolution of the sensor itself is infinite. The resolution of readings is determined by connected data logger, e.g.
CR1000:1.5 μm Logger DL18: 0.2 μm CR1000: 3.3 μm Logger DL18: 0.5 μm CR1000: 6.6 μm Logger DL18: 1.0 μm
Accuracy Dendrometer dependent:
Max. ±4.5% of reading (stable offset) Max. ±1.97% of reading (stable offset) Max. ±0.98% of reading (stable offset)
Data logger dependent, e.g.:
CR1000:± (0.04% of reading +4.4μm) Dendrometer logger DL18: ±0.1% CR1000:± (0.04% of reading +10μm) Dendrometer logger DL18: ±0.1% CR1000:± (0.04% of reading +20μm) Dendrometer logger DL18: ±0.1%
Temperature coefficient of the sensor < 0.2 μm / °C in the whole range
Linearity <1% < 0.7% < 0.5%
Environment Outdoor condition: -25 to 70°C air temperature, 0 to 100% relative air humidity
Weight of the sensor without cable 13 g 33 g 37 g
Power supply Stabilized Vex of 0.5 –10 VDC, power consumption practically zero
Material Stainless steel and Aluminium
Cable length 5 m, extendable up to 100 m