High sensitivity sample cell for lowest detection limits and sample cell heating up to 180 °C for process gas measurements. Typical uses include measurements where the highest sensitivity is needed and a response time less than 15 seconds is not required

measurements, catalyst research applications, or to measure any compounds in wet corrosive gas mixtures. The longer path

lengths of the sample cell provide low detection limits. The gold coated sample cell can be heated up to 180ºC.

Power consumption: 300 W

Multicomponent FTIR Gas Analyzer

GASMET IN-LAB SERIES includes quantitative multicomponent gas analyzers for laboratory research applications. The GASMET Cr-4000 incorporates a Fourier Transform Infrared, FT-IR spectrometer, a temperature controlled sample cell, and signal processing electronics. Liquid nitrogen cooled MCT detector has the highest performance available.

The GASMET Cr-4000 is designed for highest sensitivity and speed. It is an ideal tool for example for emissions measurements, catalyst research applications, or to measure any compounds in wet corrosive gas mixtures. The longer path lengths of the sample cell provide low detection limits. The

gold coated sample cell can be heated up to 180ºC.

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 - 25°C non condensing

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: Liquid N2 cooled MCT

Source: SiC, 1550 K

Optics material: ZnSe (beamsplitter and windows)

Wavenumber range: 600 - 4200 cm-1

Sample Cell

Structure: Multi-pass, fixed path length 2.5 m

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: 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

Electrical Connectors

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

Cr-4000 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 5.0 m or 9.8 m

External PC: GASMET PC

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

Power connector: 12 V DC input

Enclosure

Material: Aluminium

Dimensions (mm): 512 * 473 * 311

Weight: 22 kg

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