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  • Qt Y H Automatic Stem Flow Collector - China

    price: contact company for price

    the Stem flow is one of the subjects in the study of water balance in forest ecosystems. In hydrology, stemflow is the flow of intercepted water down the trunk or stem of a plant. Stem flow, along with through fall, are responsible for the transferral of precipitation and nutrients from the canopy to the soil. QT-Y/H stem flow collector is used to collect and analyze the stem flow.
    Principle:
    The system is composed of collecting units, a flow sensor and a data logger. It can continuously and automatically record the start time, end time and duration of stem flow, and also stem flow rate. The logged data can be export to excel or text file format to facilitate data processing.
    Features:
    1. The system is suitable for all kinds of trunks. QT-Y is better for trunk diameter less than 14 cm, QT-H is for more than 14 cm.
    2. It is easy to install and battery-powered, no need of external power supply.
    3. The system is equipped with a sensor with high resolution of 4.13 ml
    4. The data logger can record the air temperature when the stem flow is running.
    Technical Parameters:
    Recording range: 0 - 66000ml, resolution: 4.13ml;
    Storage capability: 16, 000 records;
    Can set the start time and date;
    Download mode: download data through the infrared downloader with USB interface
    EEPROM memory, no data loss when power outage;
    Fully-sealed data logger can be placed in the flow sensor device;
    Internal LED lights indicate operating status;
    The battery can last about 1 year.
    Event resolution: 1 second;
    Temperature measurement range: -20-70℃, temperature accuracy: 0.5℃, resolution: 0.1℃;
    Time accuracy: ±1 munities/week;
    The system is equipped with a protection case
    Made in China


    Company Contact:


    • Phone: 86-010-62111044

    • Address: 8/F., FLAT A-C, KWAI SHUN IND CTR., 51-63 CONTAINER PORT ROAD, HONG KONG, beijing, China

    • Email: Email


    Published date: June 29, 2016 -

    • Business Description: For the purpose of introduction and promotion of global advanced instrumentation and technology in the fields of terrestrial ecology, aquatic ecology and life science, Channel Technology Group Limited was established in 2001.
      Channel now employs over 70 staff with a wide spectrum of expertise, so as to offer world-class total solution to customers. With sheer dedication and commitment from our staffs, Channel has evolved rapidly from a pure distributor of environment testing products to a total solution provider in all aspects of ecology, water and life science testing products. We offer in-house expertise in sales, installation, repairs & maintenance, training, technical consultation & testing support. As well, a calibration centre has been set up to provide professional services to our customers.
      Our Business Scope:
      - Terricolous Ecology: includes soil instruments, plant instruments and environment instruments, etc.
      - Aquicolous Ecology: includes respiratory instruments and water quality instrumentation.
      - Water treatment: measuring active sludge respiration, Dissolved Oxygen, TP, TN and COD,etc.in the water.
      - Life Science: measuring animal respiration and insects physiology and behavior.
      Channel strives to achieve our philosophy:“Perfect Services Reflect the Value of Channel”. We firmly believe that customers come first. We listen to customers to find out their needs, design and deliver total solution for them. Our customers contain:
      - Renowned universities and various research institutes;
      - Various local & municipal government organizations,
      - Famous Farms and factories.
      With our philosophy, strong business network & coverage, and experienced professional team, we are capable of becoming the best total solution provider in whole China and making good contributions towards improvement of the entire agronomy, forestry, hydrology, ecology research and environment protection.

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