Flow4-DL Sap Flow Data Logger

 

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Viticulture Presentation

Flow4-DL Datalogger is a stand alone water balance measurement system. Four Dynagage sap flow sensors are recorded with all sensor signals, sap flow, and the weighted average for four plants.

Optional sensors for rainfall, soil moisture or solar radiation are recorded at each logging interval. The Flow4-DL stores the irrigation and watering history for direct or remote retrieval. When a PC connects to the Flow4-DL, the detailed log of sensor results may be transferred to spreadsheet files for analysis.

Software to install and configure your Flow4 system is as easy as pointing and clicking on the icon for that function. Each plant-sensor has automatic diagnostics, with check marks to indicate all is well. Click on "setup" and the menu choices are clearly indicated graphically.

After setup is complete, the PC may be disconnected and Flow4 does the rest. By direct communication to FL4 in greenhouses and with remote radio MODEM, PC software displays plant sap flow rates, rain, total irrigation, and the water balance on graphs as well as bar charts. Separate menus adjust the crop-field description, logger settings, and show overall system status. No other system has these unique features.

Features

  • High performance irrigation and water balance logging
  • Measures: Plant transpiration, rainfall, soil moisture
  • Monitors water applied to crop irrigation zones
  • Four Dynagage sensors - Expert weighted averages
  • History data acessed easily by friendly menu software
  • Number of plants per field, plant size automatically factored
  • Irrigation adjusted for system inefficiency and evaporation
  • Communication interface to any Windows based PC
Specifications

US Patent No 7280892

Datalogger
Proprietary embedded microprocessor at 8 Mhz clock, 27 kb non volitile RAM data, 4 kb non-volitile memory, 28 kb program memory

Sensor Inputs

Dynagage sap flow sensors (4)
12 differential inputs: range ±2.5 mV, 0.1 uV res. 4 inputs: range 0-10 V, 1.0 mV resolution

Auxiliary sensor
range 0 - 2.5 V., 0.1 mV resolution

Rain gage
dry contact closure.

Flow meter
dry contact or solid state 0-12 V. 7 KHz maximum pulse rate. All inputs are over-voltage and lightning surge protected

Sensor Cables
Four each, 8 conductor, 25 ft. (7.6 m) to Dynagage All external inputs are provided with connectors

Communication Port
RS-232, 9,600 Baud, 15 ft. cable (5 m)

AC Outlet Adapter
Switching regulator, 3.6 A @15 V dc; 120/240 Vac, 50-60 Hz., 6 ft. extension (1.8 m)

Battery Power - Voltage Requirements
Sealed lead-acid, 12 V, 5 Ah. Working range 10-15 V. Solar power optional for solar power design

System Current
50 mA without sensors Maximum fuse current 3.15 A, 250V, (5x20 mm)

Enclosure Dimensions
6.5" x 11.75" X 13.5" (16.5 x 30 x 34.3 cm)

Weight
15 lb (7 kg)

Ratings
NEMA 1, 2, 3 rain tight. CSA, UL listed