DR26 – Band Dendrometer

Whole tree water relations research has just become easier and more accurate. The data collected is of the highest accuracy with a measurement resolution of 1 micron in stem diameter change. Such resolution accurately allows for interpretation of diurnal stem fluctuations in response to climatic and micro-environmental effects in addition to long term growth.

Diurnal stem fluctuations data can then be combined with sapflow data from the same tree to correlate water use to further understand functional hydrology of the tree and or specific treatment effects.

Set Up

The sensor by default is set to active mode. That means the sensor signal output is independent to power supply voltage. It fits to most of common data loggers. If required the sensor can be set to a passive mode by changing the DIP Switches inside the sealed enclosure.

Wiring Details:

+Vb brown
- Vb green
Signal Hi yellow
Signal Lo white

Ordering Information
DR26	Band Dendrometer
DBTAPE	Dendrometer Tape 15 m spool
Autonomous logging solution	Note: For an autonomous data logging solution, enquire about the DRL26 Logging Band Dendrometer.

Specifications
Minimum stem diameter	8cm
Maximum stem diameter	no limit
Increment range	65mm
Resolution	1 µm
Linearity	2% of full scale
Temperature measurement accuracy	±2°C
Operating range	Temperature: -30 to 60 °C  Humidity: 0 to 100 %
Operation in active mode:	Power supply voltage 4.6 to 16 Volts  Current consumption 1 mA  Sensitivity 0.0254 mm/mV  Maximum load 5 mA
Operation in passive mode:	Voltage divider resistance 5,000 ohm typically  Maximum voltage 15 Volts (Vb)  Sensitivity 64 mm @ Vout = Vb (0 mm @ Vout = 0)  Tightening Strength: 15 to 20 N
Tightening strength	15 to 20N
Weight	250g
Tape spool length	15m
Tape spool width	12mm

Specification Sheets and Links
Download a printer-friendly version of DR26 Band Dendrometer information
Download a printer-friendly version of DR26 Dendrometer Manual
DRL26 Logging Band Dendrometer
Dendrometer References
Plant Science Instrumentation page

Quick Links: