The Cx-4000 is used in continuous emissions monitoring, process control and other applications where multiple gas compounds need to be monitored. Typical example is continuous emissions monitoring in waste incineration plants and cement kilns. Sample cell heating (up to 180 degrees) ensures even high water vapour concentrations or corrosive gases will not pose a problem. The Cx-4000 can be equipped with a TDL (Tunable Diode Laser) module, which provides accurate measurement of Oxygen (O2). This makes the Cx-4000 the only gas analyzer in the world to combine multicomponent FTIR gas analyzer with a TDL in one enclosure.

Gasmet™ Cx-4000 has both TÜV (17th BlmSchV) and MCERTS certificates. The analyzer is also compliant with U.S. EPA 40 cfr part 60 Appendix b PS 15.

Multicomponent FTIR Gas Analyzer

GASMET ON-LINE SERIES includes industrial multicomponent gas analyzers for continuous monitoring applications. The GASMET Cx-4000 incorporates a Fourier Transform Infrared spectrometer, a temperature controlled sample cell, and signal processing electronics. The analyzer is fully equipped for fixed installations and it offers versatility and high performance for all industrial users.

The GASMET Cx-4000 is designed for continuous emission monitoring (CEM).It is an ideal tool to analyze trace concentrations of pollutants in wet, corrosive gas mixtures. The sample cell can be heated up to 180 °C. Sample cell absorption path length is selected according to the application. The GASMET Cx-4000 allows simple calibration using only single component calibration gases. The user can easily configure the analyzer for a new set of compounds.

General parameters

Measuring principle: Fourier Transform Infrared, FTIR

Performance: simultaneous analysis of up to 50 gas compounds

Response time, T90: typically < 120 s, depending on the gas flow and measurement time

Operating temperature: 15 - 30°C non condensing air conditioning recommended

Storage temperature: -20 - 60°C, non condensing

Power supply: 100-115 or 230 V / 50 -60 Hz

Power consumption: 300 W

Spectrometer

Resolution: recommended 8 cm-1 or 4 cm-1

Scan frequency: 10 scans / s

Detector: Peltier cooled MCT

Source: SiC, 1550 K

Beamsplitter: ZnSe

Window material: ZnSe

Wavenumber range: 900 - 4 200 cm-1

Sample Cell

Structure: Multi-pass, fixed path length 5.0 m

Standard material: 100 % Rhodium coated aluminium

Mirrors: fixed, protected gold coating

Volume: 1.07 l

Connectors: Swagelok 6 mm or 1/4"

Gaskets: Viton® O-rings

Temperature: 180 °C, maximum

Window material: BaF2

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

Electrical Connectors

Digital Interface: 9-pole D-Connector for RS-232

Analyzer is connected to an external computer via RS-232C cable. The external computer controls the GASMET.

Power connection: Standard plug CEE-22

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 l per hour

Gas filtration: filtration of particulates (2μ) Required

Sample gas pressure: ambient

Sample pump: external, not included

Electronics

A/D Converter: dynamic range 95 dB

Signal Processor: 32-bit floating point DSP 120 MFLOPS

Computer: external, not included

Analysis Software (for external PC)

Operating system: Windows XP

Analysis software: CALCMET for Windows

Options

Sample Cell: Multi-pass, fixed path length 2.5 m, or 9.8 m

External PC: GASMET PC for control and analysis with optional alarm relay boards and analog inputs or outputs

Sample cell gaskets: Teflon® coated Viton® or Kalrez®

Enclosure

Sample Cell material: Aluminium

Dimensions (mm): 482 * 196 * 450

Weight: 17 kg

CE - Label: according to EMI guideline 89/336/EC