In-Situ Multicomponent FTIR Gas Analyser
Gasmet FTIR In-Situ is industrial multicomponent gas analysers for continuous monitoring applications. The Gasmet In-Situ incorporates a Fourier transform infrared spectrometer, a sample cell which is directly inserted into the sample gas flow, and signal processing electronics. The analyser is fully equipped for fixed installations and it offers versatility and high performance for a wide range of applications.
In-Situ analyser is equipped with a control box providing gas and electrical connections, and an external computer unit. The computer employs the same Calcmet user interface as an extractive Gasmet CEMS.
The sample must be non-condensing and the upper limit for sample temperature is 250 oC. Sample cell absorption path length is 6.0 meters. Insertion depth of the sample probe is 736 mm and the flange diameter is 240 mm.
General parameters
Measuring principle: Fourier transform infrared, FTIR
Performance: Simultaneous analysis of up to 50 gas compounds
Response time, T90: Typically < 360 s, depending on the gas flow and
measurement time
Operating temperature: -30 – +40 °C, non-condensing
Storage temperature: -30 – +60 °C, non-condensing
Power supply: 100-115 or 230 V / 50-60 Hz
Power consumption: 2200 W max., 500 W continuous (with cell heating)
Instrument air: 4-7 bar pressure, dew point –20 oC, oil and dust free
Max. air consumption: 250 l/min for vortex cooling (cont.) 100 l/min for
zero calibration/purge (15 minutes at 24 hour intervals)
Spectrometer
Resolution:8 cm-1
Scan frequency:10 scans / s
Detector:Peltier cooled MCT
Source:Ceramic SiC, at 1550 K
Beamsplitter:ZnSe
Window material:ZnSe
Wave number range:900 - 4 200 cm-1
Sample gas conditions
Gas temperature: Up to 250 oC, non-condensing
Sample cell
Structure: Multi-pass, fixed path length 6.0 m
Probe body material: AISI 316 steel
Mirror material: Rhodium coated aluminium
Mirror coating: Reflective gold coating
Gaskets: Viton® O-rings
Window material: BaF2
Insertion depth 736 mm
Mounting flange 240 mm diameter
Temperature 250 °C
Gas filtration Filter panels (2-7 μm)
Measuring parameters
Zero point calibration: 24 hours, calibration with instrument air
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 10K temperature change
Pressure influence: 1 % change of measuring value for 1 % sample pressure
change.Sample pressure changes are measured and compensated
Options
Adapters for flanges larger than 240 mm
RS-422/485 interface instead of RS-232 for longer distance, maximum
distance one (1) kilometer.
Electrical connectors & electronics
Digital interface: RS-232/422 cable for the analyser.
Power connection: Terminal connectors for L + N +PE wires
A/D converter: Dynamic range 95 dB
Signal processor: 32-bit floating point DSPs, 120 MFLOPS
Computer unit
Analyzer is connected to an external computer via serial cable.
The external computer controls the Gasmet In-Situ analyzer.
For I/O options, see Gasmet Industrial Computer Technical Data sheet.
Minimum configuration: 512 MB Memory, > 40 GB hard disk, > 2.4
GHz Intel Pentium IV processor, modem, network card
Operating system: Windows 7 (32-bit)
Software included: Calcmet for Windows
Watchdog support: Included
Mouse: Included
Keyboard: Not Included
Display: TFT display
Digital Interface RS-232 cable to analyzer (<5m)
RS-422 option up to 1000m
Enclosure
Material: Aluminium / steel /polyethylethylketone (PEEK)
Dimensions (mm): 1168 x 417 x 263 mm
Weight: 30 kg
CE label: According to EMI guideline 89/336/EC
商品属性 [波长范围] 900 - 4 200 cm-1 [光学分辨率] 8 cm-1