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    • DK205HV Online Liquid H2S Analyzer

    Overview

    Sturdy, simple and unique design, based on the lead acetate tape sensor and sample transfer vaporization tower degassing device, provides linear, interference-free and reliable H2S concentration output;


    Principle

    To measure H2S in crude oil or other liquids, an absorption tower device is used to separate the H2S gas from the liquid so that it can be accurately measured in the gaseous state. This separation does not require a problematic and complex "top space" absorption tower, which is often affected by liquid residues. DukeTech uses the most advanced sample transfer absorption tower (STS) device and its unique ASI membrane technology to separate H2S from liquid samples for effective and reliable detection in the gaseous state. The sample transfer absorption tower STS is a very simple degassing device that provides ultra-clean and dry sample gas for analysis to the detector. Compared with the complex "top space" absorption method, the sample transfer absorption tower STS reduces 90% of the parts. This significantly reduces its maintenance requirements and improves the reliability of the analysis. DukeTech has become the global leader in H2S analysis in liquids (including crude oil) due to the many advantages of this unique technology.

    The principle of this method is that the continuous flowing liquid sample enters the heated STS unit, which is partially based on Henry's law to separate the liquid from H2S. The carrier gas then brings the H2S sample gas into the specific H2S detector for quantitative detection in ppb, ppm, and %. Even in the face of complex process changes, the analyzer does not require zero-point or range calibration.

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    Features

    Ø Analysis for H2S alone is never false positive

    Ø No on-site calibration required.

    Ø Accurate and continuous analysis.

    Ø Quantitative detection of ppb, ppm and %

    Ø Proven reliability

    Ø Compliant with ASTM method

    Ø Fast response time

    Ø Long-lasting color rate paper strips, requiring 4 replacements per year

    Ø Supports remote network control

    Ø Compliant with ATEX and IECEs certifications


    Technical Parameters

    Output Range

    0-1ppm、0-10ppm、0-50ppm、0-100ppm、0-500ppm(Weight percentage) ; Can be customized.

    EPC

    Class1Division1，Class1Division2，Zone1 orZone2; Compliant with ATEX and IECEs certifications.

    Temperature

    Operation: 1~50℃, without external expansion cooling/heating device, storage: 0~70℃

    Resolution

    1ppb

    Accuracy

    ± 2%

    Repeatability

    ±1%

    Linearity

    ± 1%

    Drift

    -

    Temperature coefficient

    0.01%/℃

    Analysis time

    0.75s

    Weight

    ~280 pounds（205HV） ~130 pounds（205P）

    Size

    3ft×4ft×1ft （205HV） 2ft×2ft×1ft （205P）

     

    Display

    Alphanumeric LCD 4-digit concentration display

    128x64 pixel backlit color display

    Non-contact operation (explosion-proof housing)

     

    Sampling system

    Sample pressure regulating valve (maximum 400 or 1500 psig)

    Sample gas needle valve

    Sample gas flowmeter

    Carrier gas flowmeter

    Self-cleaning sample gas filter (205HV standard)

     

    Work support/Setup

    110V AC or 220V AC

    Normal: 100W, maximum 700W

    Gas flow rate: 180ml/min (maximum 15psig)

    Sample gas flow rate: ~200ml/min

    Sample gas pressure: 30psig (maximum 400 or 1500psig)

     

     

    Optional

    Concentration relay alarm

    Diagnostic/fault relay alarm

    Low flow relay alarm

    RS-232/485 network communication protocol

    Data recorder for downloading data to PC

    Remote monitoring/control of PC

    Automatic calibration


    Applications

    Ø Measurement of H2S concentration in crude oil, fuel oil, diesel.

    Ø Measurement of H2S concentration in wastewater/ clean water.

    Ø Measurement of H2S concentration in drilling fluid and condensate fluid.

    Consulting phone 010-8243-3533
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