analyseur de gaz en ligne medor exd atex pour composés soufrés

TSP MEDOR Exd ATEX

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Gas Analyser GC 866

MEDOR® Exd ATEX
On-line analysis & monitoring of sulfur compounds in natural gas and gaseous fuels for hazardous area
Main applications:

• Impurities detection in Natural Gas / LPG / Propane / Butane
• Propellant gas
• Catalyzer protection

Targeted compounds:
In standard: THT / H2S / DMS / Mercaptans: MM / EM / IPM / TBM / NPM
In option: 2 BM / IBM / NBM

Main markets:

• Petrochemical
• Gas transportation
• Process

Standard:
ASTM D7493-08, ISO 19739:2004, DIN 51855/7

Chromatotec® is specialised in VOC, Sulfur and permanent gases analysis at trace and ultra trace levels (ppm, ppb, ppt).

Updated: February 2021

WWW.CHROMATOTEC.COM

MEDOR® Exd ATEX

On-line analysis & monitoring of sulfur compounds in natural gas and gaseous fuels for hazardous area

Description:
The MEDOR® Exd is an industrial gas chromatograph for the analysis and monitoring of sulfur compounds in natural gas and gaseous fuels: H2S, Mercaptans, Sulfides. Two versions exist: ppm range or ppb range.

Principle:

• Automatic sampling using a loop
• Loop injection by automatic valve on the column
• Isothermal gas chromatograph
• Detection of all compounds eluting from the column performed by Chromatotec's wet cell sulfur-specific detector
• Signal provided by electrochemical reaction between the wet cell electrolyte and the sulfur compounds

Key points:

• Fully compliant with ASTM D 7493-08: Standard Test Method for On-line Measurement of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatograph and Electrochemical Detection
• Internal automatic calibration system allowing automatic validation of the data
• Continuous monitoring with automatic online sampling
• Analytical performances: specific and very sensitive to sulfur compounds
• Results validation by automatic standard injection at each analysis
• Long term stability using wet cell detector installed in reservoir
• Extremely low maintenance: very long life time detector, up to 10 years including electrolyte
• Low gas consumption, can be reduced in option
• More than 10 years data storage
• No calibration cylinders required thanks to internal calibration tube
• Automatic control with process device
• Intelligence system with tunable and interactive alarms levels
• Internal temperature and pressure monitoring
• Powerful VISTACHROM Chromatotec® software: remote monitoring & injection control
• Full traceability with on board archiving of results and chromatograms
• QC Set up and control of threshold alarms
• Data export by MODBUS / 4-20 mA / 0-10 V
• Time stamp results
• On site direct access to the analyzer with LCD screen and touch pad on front panel

Options:

• External multiple stream selector (up to 16 streams controlled by the analyzer)
• Calculation modules (Average / Statistics / Odor index...)
• Electric selection valve to reduce air consumption
• 24 V DC power supply, can work on battery or solar panel
• Inbuilt nitrogen generator for hazardous area from instrument air or from external compressor
• Liquid Injection valve for LPG or up to condensate analysis
• Sampling valve for high concentration up to % level
• Internal temperature control system using electric heater / VOR-TEX / electric peltier cooler

To order:

Model: Upon request
MEDOR® Exd Atex zone1
MEDOR® Exd Atex zone2

Chromatotec® is continuously improving its products, therefore these specifications are subject to change without notice

To contact us: sales@chromatotec.com

Technical specifications:

• Speciation and/or total sulfur Detection limits: MEDOR® Exd ppm: H2S: 0.1 ppm (0.14 mg/m3), MEDOR® Exd ppb: H2S: 5 ppb (7.0 µg/m3) or DMS: 2 ppb (5.1 µg/m3)
• Range adjustable, depending on application: 0/10 or 0/100 or 0/1000 ppm or ppb
• Calculation: total sulfur, total mercaptans...
• Relative Standard Deviation: RSD < 3% on concentration over 48H, RSD < 0.5% on retention time over 48H
• Cycle Time: H2S 120 s, H2S/TOS/TS 120 s, THT 180s (if only THT), H2S, MM, EM 300s, H2S, mercaptans, THT 720 s, H2S, mercaptans, THT 900 s with CALIB for validation
• Supervisor: Embedded industrial computer Windows® based with LCD display, 128 GB of hardware storage on SSD memory
• Communication: MODBUS communication protocol, 4-20mA, Ethernet, 3G module (optional)
• Gas supply for GC operation: Carrier: zero air or N2 (3 bar): 4 ml/min. Use N2 if THT is present, CALIB: air or N2 50 ml/min, Sample inlet 1 bar: 80 ml/min, Pneumatic valve: 90 ml/commutation (0 ml in option)
• Power supply: Main: 230V / 115V or 50/60 Hz, 24 V DC in option
• Electrical consumption: 150 VA without options
• Dimensions and Weight: Height: 1900 mm, Width: 800 mm, Depth: 600 mm, Net weight of analyzer without frame: 105 kg (175 kg with frame)

Chromatotec® is continuously improving its products, therefore these specifications are subject to change without notice

NORTH AMERICA: Houston - USA
EUROPE: Bordeaux - FRANCE
ASIA: Beijing - CHINA

WWW.CHROMATOTEC.COM