Latest addition to the Cr - series product family is the high sensitivity Cr100m FTIR - gas analyser with a 100 meter sample cell. The detection limits of the Gasmet™ Cr100m analyser are as low as 10 ppb (parts per billion). Applications of Cr100m include quality control in high purity gas manufacturing and industrial hygiene measurements.

Multicomponent FTIR Gas Analyzer

GASMET IN-LAB SERIES includes quantitative multicomponent gas analyzers for laboratory research applications. The GASMET Cr-100 incorporates a Fourier Transform Infrared, FT-IR spectrometer, ambient temperature sample cell, and signal processing electronics. Liquid nitrogen cooled MCT detector has the highest performance available. The GASMET Cr-100 is designed for highest sensitivity and speed. The long path length of the sample cell provides low detection limits. The mirrors are gold coated and the sample cell is not heated.

General parameters

Measuring principle: Fourier Transform Infrared, FTIR

Performance: Simultaneous analysis of up to 50 gas compounds

Response time, T90: Depends 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: Max 100 W

Spectrometer

Resolution: 8 cm-1 or 4 cm-1

Scan frequency: 10 scans / s

Detector: Liquid N2 cooled MCT

Source: SiC, 1550 K

Optics material: ZnSe

Wavenumber range: 600 - 4200 cm-1

Sample Cell

Structure: Multi-pass, fixed path length 100 m

Material: Aluminium

Mirrors: Fixed, reflective gold coating

Volume: 30 l

Connectors: Swagelok 16 mm

Gaskets: Viton® O-rings

Temperature: Ambient

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-100 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

Enclosure

Material: Aluminium

Dimensions (mm): 1225 * 450 * 311

Weight: 45 kg

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