WIKA GA10 SF6氣體綜合分析機

SF6-Breaker-Analyser
Model GA10

SF6-Breaker-Analyser model GA10

  Applications
? Analysis of the SF6-moisture, purity and SO2 or SO2/HF in SF6-filled equipment

  Special features
? Measure up to 4 compounds with a modular device
? Integrated data acquisition and storage
? Validation of readings (according to CIGRE, IEC, or customer specified standards)
? Fast test results (app. 5 ... 7 min. total)
? High sensitivity and precision
? Field proven design

  Description
   The WIKA SF6-Breaker-Analyser is an innovative and cost effective way to determine the levels of SF6-purity, moisture and decomposition products in SF6-filled equipment. Time of measurement and amount of SF6 needed for inspection
is minimized by combining these three functions into a single device. All sensors work parallel to save time and minimize gas consumption.

   Functionality
   The base unit contains a computer board for dataacquisition and storage along with all necessary hardwareto make a physical connection to gas-insulated
equipment.
   The  modular design allows the user to purchase the SF6-purity, moisture, or SO2 resp. SO2/HF detection cards separately if desired. Measuring the equipment pressure
the instrument can display the pressurized dew point.

    The IEC 60 480 SF6 Recycling Guide indicates that the measurement of either SO2, HF, or SOF4 is useful to determine SF6 decomposition products.

    With all three cards installed, the operator simply makes a connection to the equipment being tested.The test values displayed are automatically interpreted according to CIGRE B3.02.01, IEC, or a customer specified standard for SF6 contamination/reuse.

    A pass/fail indicator then illuminates on the analyser to judge the overall condition of the gas.
 

    Up to 150 datasets are stored in internal flash memory which can later be downloaded to a PC.The modular card system enables the user to initially purchase only one card and add more sensors later. When a card requires calibration, it can simply be exchanged by user to avoid any downtime.
  

   With an optional Recovery Kit GA45 connected to the outlet valve of the breaker analyser the tested gas is stored for possible reuse after positive test result.

  Additional features
? Compact, lightweight
? Easy maintenance
? Modular sensor upgrades
? Battery powered
? One knob operation

  Connection
   Self-sealing quick connector

  Pressure
   0.5 … 14 bar (gaseous) with automatic flow rate regulation

  Display/keys
   240 x 128 pixel / 1 knob

  Supply
? Lithium-Ion battery with 8 hour capacity
? Rechargeable 100-265 AC V (50/60Hz)
? Battery voltage displayed

  Temperature
   Storage: -10 °C ... 60 °C
   Operation:    0 °C ... 50 °C

  Dimensions
   W x H x L: 380 x 185 x 440 mm (14.7 x 7.2 x 17.3 in)

   Weight
   Max. 12 kg (26.45 lbs)

  Moisture sensor
   Measuring principle
   The moisture sensor is based on the absorption of water molecules. only vapor penetrates the covering electrode by diffusion and agglomerate reversibly to a polymer, which changes the capacity of the sensor.

   Range
   +20 °C … -60 °C dew point

   Accuracy
   ± 2 °C dew point at +20 °C ... -40 °C
   ± 4 °C dew point at < -40 °C

   Resolution
   1 °CDP
 

   Flow rate
   20 litres/hour

   Units
   °Ctd, ppmv and ppmw
   related to ambient pressure and temperature compensated

   Calibration
   Every 2 years

  SF6 percentage sensor
  Measuring principle
   Velocity of sound. The velocity of sound in the air is about 330 m/s, while it is only about 130 m/s in pure SF6 atmosphere.

  Range
   0 …100 Vol. % SF6

  Accuracy
   ± 0.5 % based on SF6/N2 mixtures

  Resolution
   0.1 %

  Flow rate
   3 litres/hour

   Calibration
   Every 2 years

   SO2/ HF sensor  

   Measuring principle
   An electro-chemical sensor senses the change in electrochemical potential that occurs when varying concentrations of SO2 / HF present.

  Ranges
   0 … 10 ppm SO2 / 0 … 10 ppm HF
   0 … 20 ppm SO2 / 0 … 10 ppm HF

  Accuracy
   SO2: ±0.5 ppmv
   HF:   ±1 ppmv

  Resolution
   0.1 ppm
  

  Flow rate
   10 litres/hour

  Operation
   Press purge button in order to clean the hoses from prior measurement

  Humidity range
   Up to 90 % (non-condensating)

  Maximum zero shift
   0.1 ppmv

  Long-term stability
   < 1 % signal degradation per month (linear)

  Lifetime
   2 years starting from installation

   SO2sensor
    Measuring principle
    An electro-chemical sensor senses the change in electrochemical potential that occurs when varying concentrations of SO2 present.

   Ranges
    0 ... 10 ppmv
    0 ... 20 ppmv
    0 ... 100 ppmv
    0 ... 500 ppmv

   Accuracy
    ±0.5 ppmv at 0 … 10 / 0 … 20 ppm
    ±5 ppmv of value at 0 … 100 / 0 ... 500 ppm

   Resolution
    0.1 ppm at 0 … 10 / 0 … 20 ppm
    1 ppm at 0 … 100 / 0 ... 500  ppm

   Flow rate
    10 litres/hour

   Operation
    Press purge button in order to clean the hoses from prior measurement

   Humidity range
    Up to 90 % (non-condensating)

   Maximum zero shift
    0.1 ppmv

   Long-term stability
    < 1 % signal degradation per month (linear)
    < 0,5 % at  0 ... 500 ppm

   Lifetime
    2 years starting from installation

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