DJ-H Stemflow Collector

DJ-H stemflow collector consists of stemflow collection tube, tipping counter and data logger. With software, we can easily know the start ,ending and last time of stemflow. The recorded data can tran

  • Product Name:DJ-H Stemflow Collector
  • Item No.:DJ-H
  • Manufacturers:Dianjiang
  • Country of Origin:China

DJ-H stemflow collector consists of stemflow collection tube, tipping counter and data logger. With software, we can easily know the start ,ending and last time of stemflow. The recorded data can transfer out into excel and text format, which is convenient for processing and analyzing.


Highlighted features:

  • The collection tube is made from soft materials, suitable for stemflow collection of various trees in various environment.

  • Easy to install and little maintenance

  • Small in size and is suitable to different environment

  • High accuracy, accuracy of 5 ml can be customized

  • The data logger is battery powered, need no extra power supply, the battery can work 365 days at 10 minutes’ logging interval.

  • Both stemflow and temperature is recorded


Stemflow collection tube

Material:     nitrile rubber

Install method:     fixed by steel nails

Length:     1m

Tipping counter

Sensor type:     Tipping bucket with magnetic switch

Output:     Pulse signal

Tipping bucket size:     50ml (5ml is customizable)

Cable:     1m

Dimensions:     240mm(length)*170mm(width)*230mm(hight)

Main material:     SUS304 Stainless steel

Water inlet diameter:     φ19mm

Weight:     2.05kg

Waterflow measurement range:     0-1.36L/min

Data logger

Temperature measurement range:     -20° to 70°C

Accuracy:     ±0.530~50

Resolution   0.1425

Drift:     0.1/year

Response time:     Airflow of 2 m/s (4.4 mph):10 minutes, typical to 90%

Time stamp resolution       :     1.0 second

Time resolution:     1 min per month( at 25

Operating range:     -20~+70

Power supply:         CR-2032 3V lithium battery; 1 year typical use

Memor:     64K bytes

Materials:     Polypropylene case; stainless steel screws; Buna-N o-ring; PVC cable insulation

Weight:     50g

Dimension:     71 x 33 x 23 mm