Technical data

65
119. Digital Sap Flow System It should be suitable to monitor continuous Sap Flow in woody plant and Trees with a provision for measuring Sap Flow in
Wheat , maize , rice and other monocotyledon plants also. The system should be able to monitor continuous up wards and
reverse / down wards Sap Flow in woody plants and trees.
The Digital Sap Flow System should be comprise of 12 Nos. Heat Ratio Method ( HRM ) Sensors and Field Station with
Data Logging Instruments with all accessories including Sensors Installation Kit and Replacement Parts and Extra cables.
Specification of HRM Sensors :
Heat Ratio Method Sapflow Sensor - Consists of three probes 30mm long integrated micro-
processor smart interface with
5m cable length and HRM Sensor should have following Specifications :
Sensor Output
Smart Output :
Serial Data
Heat Pulse
Velocity
:
Cm/hr
Sap Velocity :
Cm/hr
Sap Flow :
Ltr/hr
Heat Pulse
User Adjustable
Heat Pulse
:
25 joules approx
Minimum Interval :
10 min
Sensor Design
Probe Diameter :
1.3 mm
Probe Length :
30 mm
Thermocouple :
2 per probe
Field Station with Datalogging Instruments :
Plug & Play Smart Logger. Standard 200 channels. Memory: 500,000 (4MB); Date & Time Stamped, High Resolution (16
Bit) readings. Includes :LCD display, 6V/7 Ahr battery, 110/240V (12V, 2.5Amp DC output) power supply, RS232 cable,
embedded software for operation with HyperTerminal & user manual.
Field Station should be supplied complete with enclosure , Mast and other accessories with Solar Panel.
Data communication with GSM Telemetry and optional hard wired through RS232C Cable to Lap Top PC or Desk Top PC
from Logger.