Gasmet On-line Series includes multicomponent gas analyzers for continuous monitoring applications. The Gasmet CX4015 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 CX4015 is designed workplace air monitoring, and quality control applications. It is an ideal tool to measure components of interest in ambient conditions. The sample cell can be heated up to 50 °C. Sample cell absorption path length is selected according to the application.

The Gasmet CX4015 allows simple calibration using only single component calibration gases. The user can easily configure the analyzer for a new set of compounds.


  1. CX4015
  2. External pump is needed
  3. External computer to run CalcmetTM software not included
  4. Particulate filtration and heated/unheated lines for gas transport
  5. Optional analog signals in external PC: ADAM 5000/TCP module (for analog inputs, outputs, relays)

Gasmet CX4015 can be integral part of Gasmet Continuous emissions monitoring system (CEMS II)  or it can be operated as an individual analyzer.


  • Highest possible sensitivity for low detection limits


  • Occupational hygiene
  • Quality control


Technical Data

GasmetTM CX4015 FTIR gas analyzer

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: Short term 0 - 40°C
long term 5 - 30°C
Storage temperature: -20 - 60°C, non-condensing
Power supply: 100-115 or 230 V / 50 -60 Hz
Power consumption: Average 150 W, maximum 300 W


Resolution: 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
Wave number range: 900 - 4 200 cm-1


Sample cell
Structure: Multi-pass, fixed path length 5.0 m
Material: 100 % rhodium coated aluminium
Mirrors: Fixed, protected gold coating
Volume: 0.4 liters
Connectors: Inlet Swagelok 6 mm
Outlet Swagelok 8 mm
Gaskets Viton® O-rings
Temperature: 180 °C, maximum
Window material: AR coated ZnSe


Measuring parameters
Zero point calibration: 24 hours, calibration with nitrogen
(5.0 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 Gasmet.
Remote control connection for Portable sampling unit
Power connection: Standard plug CEE-22
PSS connection: Remote connection of PSS (Portable Sampling System)


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
Sample pump: External, not included


A/D converter:  Dynamic range 95 dB
 32-bit floating point DSP
Signal processor: 120 MFLOPS speed
Computer:  External, not included


Analysis software (for external PC)
Operating system:  Windows 7 (32-bit)
Analysis software:  Calcmet for Windows


Sample cell: Multi-pass, fixed path length 2.5 m or 9.8 m
Pressure measurement: Inside sample cell
Analog signals (ext PC): ADAM 5000/TCP module (for analog inputs, outputs, relays)
Sample cell gaskets: Teflon® coated Viton® or Kalrez®
Trolley: Wheeled cart for the analyzer and laptop computer


Material:  Aluminium
Dimensions (mm):  482 * 196 * 450
Weight:  17 kg
CE label:  According to EMI guideline 89/336/EC

Gasmet Technologies Oy shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided “as is” without warranty of any kind and is subject to change without notice. Should you find any errors, we would appreciate if you notified us.


This Product does not have any videos.