Sap Flow Sensor type SF-G

The SF-G sensor is the typical Granier sensor and consists of two needles

 

Advantages

■ Suitable for tree diameter >2 cm

■ Reusable sensor

 

Disadvantages
■ Temperature difference between the needles are superimposed by the vertical variation of Stem temperature (up to + / -2.5 ° C). This leads to unpredictable errors of over 100%.

■ Sap flow at night can not be measured. Due to the temperature overlays the night values are incorrectly set to zero
 

Available Models
■ SF-G 20/33, depth of installation 20-33 mm

■ SF-G 20/43, depth of installation 20-43 mm

■ SF-G 20/63, depth of installation 20-63 mm

 

Delivery by Standard Version

■ Sensor with 5 cable, weatherproof cap, Aluminium tubes

 

Options / Ordering Information

■ Cable extension (please specify in meters, but max. 20 m)

■ CCS power supply (one CCS is enough for up to 3 SF-G sensors)

■ Installation tools

■ Data Logger

 

Technical data

Name Sap Flow Sensor Type SF-G
Needle size Diameterr 1.5 mm, Length 33, 43, 63 mm
Cable length 5 m, extendable to 20 m
Suitable for tree size Diameter> 2 cm
Power supply A CCS supplies up to 3 sensors and consumes 1 W (12 V x 84 mA DC, stabilized)
Output 0 µV bis 1000 µV DC

Sap Flow Sensor SF-G