Standards:

ISO 19702, ISO 9705, CEN TS 45545-2

Applications:

It’s a advanced FTIR for continuous monitoring, and capable for individual analysis of airborne concentrations of CO, CO2, NO, NO2, SO2, HCl, HF, Phenol, Acrolein, water vapour, etc.

Product Information:

FTIR is an advanced FTIR gas analyser used for continuous gas monitoring in conjunction with Cone Calorimeter and Smoke Density Chamber for online measurements of combustion gases in fire tests. The analysis of gases in fire effluents is very complex and challenging due to the great number of different organic and inorganic chemicals which representative atmospheres can contain. FTIR is fully configurable to meet the requirements of ISO 19702, ISO 9705 and CEN TS 45545-2. In addition, various process monitoring applications are also possible. Measured components and calibration ranges can be selected according to application.

FTIR is a modular construction that typically comprises of FTIR gas analyser, heated sampling unit and an industrial PC which are mounted in a 19” cabin with shelves for easy accessibility & service.

FTIR Gas Analyser

The FTIR gas analyser is an integral part of system which allows simultaneous measurement of up to 50 gas compounds. Typically concentrations of H2O, CO2, CO, SO2, NO, NO2, N2O, HCl, HF, NH2, etc. are continuously measured. The FTIR gas analyser has a multi-pass sample cell which is heated to 180℃ and features rhodium-gold plated mirrors which ensures high performance even in high water vapour concentrations or corrosive gases.

Sampling System

The hot-extractive sampling system consist of a heated sample gas probe, heated sample lines and heated sample pump unit. The whole system is kept at 150℃ to 180℃ to avoid condensation and subsequent washing of soluble fire gases out of the sample. Two-stage particle filtration is used in order to remove particles from the sample gas. The sample pump unit includes gas connections for the FTIR gas analyser.

Industrial PC

The industrial PC is required to operate the analyser, to control the sampling system, to translate measured and analysed concentrations and send alarms to higher level automation and control systems. The industrial PC is also used for processing & storing the sample spectra with CalcmetTM-software. Two hard drives are configured as a RAID I to provide a complete backup and redundancy for both the operating system and the stored data. From the industrial PC, the analysis results can be exported and used in an external programme (e.g. Excel) for reporting. The FTIR also provides different alarm functions. The alarms can be transferred with relay contacts. If any of the critical alarm are activated, instrument air starts to flow automatically into the system to prevent condensation.

Key Advantages:

1. Time resolved results enabling continuous monitoring of species development.

2. Multiple species can be monitored simultaneously.

3. Low maintenance requirement.

4. No span calibrations required (automated span checks possible).

5. Hot-extrative-sampling: no sample loss or change of composition.

6. Fully automated measurement system with comprehensive safety functions.

7. Fully modular system for maximum flexibility.