Product Details

After each measurement, this product can use pump pressure to pump external air into the gas path. The pumped air is filtered and dried before being introduced into the gas chamber to discharge the gas inside, ensuring no sample gas residue in the chamber, maximizing measurement accuracy, and extending the lifespan of the electrochemical sensors;

Dynamic Temperature Correction and Compensation Technology

Changes in sample gas temperature and ambient temperature can affect the characteristics (baseline and range) of electrochemical sensors, thereby affecting measurement accuracy. This product has built-in sensor temperature characteristic curves and uses an independent temperature measurement circuit to obtain real-time sample gas and ambient temperatures, dynamically correcting measurement results based on the sensor temperature characteristic curves to ensure accurate and reliable measurement results. The "temperature correction" function can be manually controlled to be "on/off". When the temperature correction function is "on", the temperature sensor measures the current ambient temperature in real time and performs temperature correction compensation for the electrochemical sensors on the test card;

Error Correction Technology for Different Carrier Gases

Using a carrier gas (background gas) different from the insulating gas of the equipment under test during instrument calibration can cause measurement errors. This product allows the user to select the carrier gas type during use to correct errors caused by different carrier gases (mainly air/N2, SF6).

Main applications: fault location, routine testing, partial discharge monitoring, gas purification/filtration monitoring, inspection of faulty high-voltage contacts, SF6 decomposition product detection, and checking the generation of decomposition products inside switchgear.

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  Adopts anti-cross-interference technology, high accuracy, good repeatability


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  Equipped with multiple background gas selection functions


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  Has ambient temperature dynamic compensation function


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  Built-in imported electronic mass flow meter for precise gas flow control


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  Multiple measurements, automatic calculation of average value, reducing measurement errors


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  Built-in air purge function, effectively extending instrument lifespan


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  Rechargeable battery power supply, dual AC/DC use


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  Graphical user interface for more convenient operation


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  Alarm function: has gas concentration alarm function, can manually control the alarm function on/off;

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  Measurement range:
  

  
  H2S: 0～200µL/L

  
  

  
  SO2+SOF2: 0～200µL/L

  
  

  
  CO: 0～1000µL/L (optional)

  
  

  
  HF: 0～10µL/L (optional)

  
  


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  Accuracy:
  

  
  SO2+SOF2/H2S: 0-20uL/L error not greater than 1uL/L; 20-200 relative error not greater than 5%

  
  

  
  HF: 0-10uL/L error not greater than 1uL/L

  
  

  
  CO: 0-100uL/L error not greater than 5uL/L; 100-1000uL/L relative error not greater than 5%

  
  


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  Sensitivity: 0.1 µL/L


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  Sample gas flow rate: 0.25 L/min±30ml/min


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  Response speed: 10～15 seconds


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  Inlet pressure: ≤1.0MPa


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  Ambient temperature: -20℃～55℃


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  Ambient humidity: ≤90%RH