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  • Photoacoustic Gas Analyzer
  • Dissolved O2, O3, H2 analyzer
  • Oil & Gas Pipeline Health
  • Sonic densitometer
  • Dissolved carbon dioxide analy
  • Other instrumentation

    • Photoacoustic spectrum oil gas analysis sensor DKG-M series

    Photoacoustic spectrum oil gas analysis sensor DKG-M series


    Overview

    Transformer on-line monitoring and fault diagnosis technology is very important for improving the safety and stability of power system. The on-line monitoring technology based on dissolved gas analysis in oil is one of the most popular and important on-line monitoring technologies for transformers. Analyzing the composition and content of dissolved gas in oil is one of the most effective measures to monitor the safe operation of oil-filled electrical equipment. Using photoacoustic spectroscopy to analyze dissolved gas in oil to monitor the safe operation of oil-filled electrical equipment has the characteristics of maintenance-free, high real-time and high precision.

     

    Technology 

    Dkg-M series oil gas analyzer, can achieve multi-component oil gas analysis, Photoacoustic spectroscopy technology can realize high sensitivity measurement of short optical path. Based on patented ultra-high sensitivity optical microphone technology with an enhancThe ultra-high sensitivity can be achieved by 7 kinds of optical narrowband filters. The extremely narrow optical filter can remove the interference of background gased cantilever beam. It can achieve wide range up to 5 levels of linear dynamic range ratio. Multiple spectral regions can facilitate minimum cross sensitivity. Based on infrared photoacoustic spectroscopy, the multi-gas analyzer has a pulse infrared light source and forms 7 spectral bands in the middle infrared region through narrow band optical filter for gas analysis.

     光聲光譜油中氣體分析傳感器01.png

    Features 

    Non-consumable, maintenance-free, non-chemical, non-chromatographic 

    Measuring chamber with Constant temperature and pressure , single point calibration, wide dynamic range 

    Configurable response time   from seconds to minutes 

    The hydrogen sensor has a life span of more than four years

     

    Specification

    Span 

    Gas

    Lower Limit /ppm

    Upper Limit /ppm

    H2

    5

    5,000

    CH4

    1

    50,000

    C2H6

    1

    50,000

    C2H4

    1

    50,000

    C2H2

    1

    50,000

    CO

    5

    50,000

    CO2

    5

    50,000

    Water measuring/Humidity

    0%

    100%


    Physical and mechanical  

    Operation Temp.

    +5 - +50°C

    Sample Temp.

    0 - +45°C

    Storage Temp.

    -30°C - +80°C

    Humidity

    90%（no condensation @30°C）

    Vibration tolerance

    IEC 60068-2-6，Fc test

    Drop/impact

    IEC 60068-2-31 and ISTA 1A

    Power supply

     90-250VAC ，47-63Hz

    Weight

    < 5kg

    Size

    15.2 cm W x 10.5 cm H x 34.9 cm D

    Chamber volume

    < 30ml

    Dynamic range

    500-50,000

    Zero drift

    ± Limited Detection/ 1 month

    repeatability

    5% of measurement value( under reference condition)

    Range drift

    5% of measurement value/ 12 months

    Precision

    +/- 5% or +/- 2 ppm( take the maximum)

    +/-1% RH（H2O RH 0-90%）

    Communication interface

    USB (open communication protocol)


    Consulting phone 010-8243-3533
    Duke. All rights reserved Beijing tech technology Co. Ltd. 京ICP備14007870號-1
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