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    GDWG-III SF6 Gas Quantitative Leakage Detector hits:
    General introduction

    GDWG-III SF6 gas leakage detector, with non-dispersed infrared (NDIR) technology, is mainly used to pinpoint and measure SF6 leakage on GIS and refilling equipment within power industry.

    The annual leakage rate of SF6 gas electrical equipment is measured with bandaging method. At the same time, the equipment is widely used in power supply bureau, substations, high voltage switch company, laboratory hood and scientific test. 


    Application

    • High voltage switch-gear
    • Helicopter rotor blades
    • Gas transmission system
    • Fire extinguisher
    • Ventilation rate study
    • Hazardous material
    • Tank


    Advantages

    • No radioactive risk.
    • No need to replace high purity argon gas regularly.
    • No need to replace sensor regularly, cost-effective.
    • No need to make linear calibration every year, no wearing parts.
    • Not effected by humidity, environment pollution or data drift.  
    • When there is severe leakage or SF6 gas concentration is up to 100%, it will not be polluted or damaged.



    Features
    • To measure SF6 gas leakage qualitatively and quantitatively.
    • To locate SF6 gas leakage point.

    • Parameters like SF6 gas concentration, temperature, humidity, power indicator, date and diaphragm pump status are displayed.

    • User-friendly interface.

    • Use NDIR technology and advanced sensor from Germany.

    • Fast test speed and good repeatability, data is stabilized within 10s.

    • With temperature and pressure compensation.

    • No false alarm, no gas except SF6 responses.

    • Non-contact gas measurement ensures that sensor won’t be poisoned at any concentration rate.

    • Thermostatic chamber ensures no temperature drift at ambient temperature for sensor.

    • 3.5inch OLED display, legible in the strong sunlight.

    • Built-in lithium battery, standby time is long.

    • Pipelines is customized as per request.

    • Pump suction sampling ensure good sealing of gas path under test.

    • More than 100 groups of test data are stored based on gas concentration and test time, easy to query.

    • The outer casing is high strength, fully shielded, ultra-lightweight ABS material structure.

       


    Specifications


    Measuring principle

    Non-dispersive infrared sensor (NDIR)

    Measuring range

    0-1500ppm SF6

    Resolution

    0.1ppmv

    Accuracy

    ±2%FS (0-1000ppm)

    Repeat-ability error

    ≤±1%

    Sensitivity

    1ppmv

    Response time

    ≤10s

    Recovery time

    ≤15s

    Stability

    ≤±20ppm, more than 1000 hours

    Sampling mode

    Pump suction type, flow up to 1L/min.

    Zero drift

    ≤±1%(F.S/year)

    Linear error

    ≤±1%

    Peak current

    <700mA

    Average power

    <2W

    Operation air pressure

    800-1150hPa

    Environment humidity

    0-95%RH

    Storage temperature

    -20 ~ +60℃

    Operation temperature

    -20 ~ +50℃

    Operation humidity

    0-95%(non-condensing)

    Working voltage

    220VAC±10%,50Hz Or Built-in Li-battery, continuous working 6 hours after full charge.

    Dimension

    220*250*120mm

    Weight

    About 2kg




    Accessories

    Main unit

    1 set

    Charger

    1 piece

    Hand-held probe

    1 piece

    Anti-slip belt

    1 piece

    Hose 600 mm

    1 piece

    User’s guide

    1 copy

    Warranty card

    1 copy



    CONTACT US
    Address: F/10, Block B7, JinYinTan Modern Enterprise City, Dongxihu District, Wuhan, China
    Email: info@hvhipot.com
    Skype: hvhipot@hotmail.com
    Tel: +86-27-85568138
    Fax: +86-27-65606183
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