Gasmet Technologies Oy

- Model FCX Series - FTIR Process Gas Analyzer

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Gasmet FCX analyzer is a wall-mounted solution for multigas analysis. The FCX analyzer can be used for various purposes, including industrial hygiene applications. Gasmet FCX consists of an FTIR spectrometer, sample cell, build-in industrial computer, display and keyboard, all in compact stainless steel enclosure. The wall-mounted analyzer is designed to work automatically, and analysis results can be transferred via analog or digital outputs according to customer needs. Gasmet FCX can also be used for automatic online monitoring of multiple measuring points when connected to Gasmet Multipoint Sampling System.

The Gasmet FCX-Series features a comprehensive range of high performance FTIR process gas analyzers. The wall mounted Gasmet FCX process gas analyzers offer reliable results even when analyzing complex gas mixtures. The Gasmet FCX process gas analyzers incorporates a Fourier Transform Infrared spectrometer, gas cell, and signal processing electronics, a built-in Industrial Computer and a TFT display into a compact enclosure.

  • IP 65 enclosure with Vortex cooling
  • Can be integrated with Gasmet Multipoint sampling systems
  • Wall mounted
  • Built-in industrial computer
  • The analysis results of Gasmet FCX process gas analyzer are transmitted via 4-20 mA analog output signals or digital outputs (ModBus)
  • The Gasmet FCX enclosure has IP 65 protection and the analyzer is equipped with Vortex cooling system.
  • The Gasmet FCX sample cell can be equipped with an optional heating and temperature control up to 180 °C. Sample cell absorption path length is selected according to the application.

  • Wide range of analyzer configurations
  • Ideal tool when measurement from multiple sampling points is required
  • Wall mounting
  • IP 65 protection when Vortex cooled

  • Gasmet FCX analyzer
  • Hetead lines and sampling probes
  • External sample pump if sample cell temperature is over 50 °C
  • For multi-point sampling Gasmet multipoint sampling system is required
  • Particulate filtration
  • Vortex cooling if IP65 protection is required

  • Process monitoring
  • Workplace air quality measurements e.g. anesthetic gas monitoring in hospitals

General parameters

  • Measuring principle: Fourier transform infrared, FTIR
  • Performance: 1 - 50 gas compounds
  • Response time, T90: Typically < 120 s, depending on the gas flow and measurement time
  • Operating temperature: Short term 0 - 40°C
  • long term 5 - 30°C
  • non-condensing
  • Climate control: Vortex
  • Storage temperature: -20 - 60°C, non-condensing
  • Power supply: 100-115 or 230 V / 50 -60 Hz
  • Power consumption: 500 W

Spectrometer

  • Resolution: 8 cm-1 or 4 cm-1
  • Scan frequency: 10 scans / s or 4 scans / s
  • Detector: Peltier cooled MCT
  • Source: SiC, 1550 K
  • Beamsplitter: ZnSe
  • Window material: ZnSe or BaF2
  • Wave number range: 900 - 4 200 cm-1

Sample cell

  • Structure: Multi-pass or single pass cells. Available from 1 cm up to 9.8 m
  • Material: Stainless Steel or 100 % gold or rhodium coated aluminium
  • Mirrors: Fixed, protected gold coating
  • Volume: 1.07 or 0.22 liters
  • Connectors: Inlet Swagelok 6 mm
  • Outlet Swagelok 8 mm
  • Gaskets Teflon® coated Viton®. Kalrez® available upon special request
  • Temperature: 180 °C, maximum
  • Window material: BaF2 or ZnSe or AR coated ZnSe

Measuring parameters

  • Zero point calibration: 24 hours, calibration with nitrogen
  • (4.0 or higher N2 recommended)
  • Zero point drift: < 2 % of measuring range per zero point calibration interval
  • Sensitivity drift: None
  • Linearity deviation: < 2 % of measuring range
  • Temperature drifts: < 2 % of measuring range per 10 K temperature change
  • Pressure influence: 1 % change of measuring value for 1 % sample pressure change. Ambient pressure changes measured and compensated

Gas inlet and outlet conditions

  • Gas temperature: Non-condensing, the sample gas temperature should be the same as the sample cell temperature
  • Flow rate: 120 - 600 liters per hour
  • Gas filtration: Filtration of particulates (2 µm) required
  • Sample gas pressure: Ambient

Electronics

  • A/D converter:  Dynamic range 95 dB
  • Signal processor: 32-bit floating point DSP 120 MFLOPS

Computer

  • Processor: 2 GHz Intel Celeron
  • Memory: 256 MB SDRAM
  • Hard disk: > 40 GB
  • Operating system: Windows XP system
  • Application software: Calcmet for Windows
  • Outputs: Isolated 4-20 mA for each component (maximum is 16) or digital RS-232 Modbus
  • Relays: Sample gas; Function alarm; Service request; Concentration alarm.
  • Display: Door mounted 12” TFT display

Air conditioning

  • Gasmet FCX is equipped with Vortex cooling system. Other cooling systems are available on request.
  • Cooling capacity: 270 W (air 7 bars, 21 ºC,
  • dewpoint –40 ºC)
  • Air consumption: 425 Nl/min, maximum
  • Air quality: Pressure 7-10 bars
  • Temperature + 43 ºC, maximum
  • Dewpoint –40 ºC

Options

  • Sample pump: For ambient air up to 50 °C only
  • Automatic zero valve: Up to 50 °C sample temperatures
  • Remote control: Modem and software for remote diagnostics
  • Sample cell temp.: 50 - 180 °C
  • Pressure measurement: Inside sample cell

Enclosure

  • Material: Stainless steel
  • Dimensions (mm): 800 * 600 * 300
  • Weight: 50 kg
  • Protection: IP 65
  • CE label: According to EMI guideline 89/336/EC

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