F10 photoacoustic spectroscopy Multi-Gas Analyzer  

F10 Concept 

The F10 is based on photoacoustic infrared technology. It has pulsed IR source and 10 distinct spectral bands in the mid-IR region defined by narrow band-pass optical filters. High sensitivity is obtained by utilizing the patented cantilever based optical microphone technology.

Multi-component analysis High selectivity is achieved by choosing up to 10 optical filters with narrow spectral bands for target gases as well as interfering gases. Several spectral regions can be used with each gas for minimal cross-sensitivity.  Analysis is based on a modified classical least squares fit of sample response to calibration data.

Photoacoustic technology allows high sensitivity from short optical path length which has been further improved with novel model-based non-linear compensation. This provides linear dynamic range of over five orders of magnitude.

Measurable gases 

Hydrocarbons: CH4, C2H6, C2H2, C2H4, etc.

Inorganics: CO2, CO, N2O, SO2, NO, NO2, NH3, NF3, SF6, H2O

VOCs: acetone, ethanol, methanol, benzene, toluene, xylenes, formaldehyde etc.

CFCs and PFCs: CF4, C2F6, R-134a, R 13, etc.

Corrosives (at low levels): HF, HCl, HCN

Anesthetics: isoflurane, sevoflurane, desflurane, enflurane

Features 

Up to 9 gases simultaneously

Sub-ppm detection limits

Long calibration period

User-friendly calibration

Built in 2-point sampling

Analysis from very low gas volume

High-resolution graphical display with userfriendly menus

Versatile programming of measurement tasks

Presentation of the measurement results of all gases both numerically and in graphical form Built in trend view for monitoring tasks, no external computer required

No consumables

Applications 

Poultry, Swine, Agricultural

Greenhouse gas

Industrial safety and hygiene

Fermentation

Leak detection

Process control

Waste anesthetic gases

Technology 

Photoacoustic infrared spectroscopy with cantilever enhanced optical microphone Electronically pulsed IR source

Gold coated gas cell stabilized to 50 °C temperature

Patented ultra-sensitive optical microphone based on a MEMS cantilever sensor coupled with a laser interferometer to measure microscopic movement of the cantilever sensor  

19” 3U housing for both table stand and rack mount installation

Built in PC computer with 5,7” color VGA display in the front

User interface of setting the alarm levels for concentrations of gases under monitoring  

Data storage capacity of approx. 2 GB. Sufficient for more than a year of continuous monitoring of 9 gases with the shortest sampling interval.

Transfer of measurement results to memory stick via USB or to PC via USB, Ethernet or serial ports.

Four gas connections in the rear. The two sample gas lines, are equipped with filters for dust and small particles.

Compensation of the fluctuations of temperature and pressure within the operational conditions

Cross-compensation of known interferents of the sample gas including water vapor

Environment 

Operational conditions:

Temperature range: 0 °C – +45 °C

Humidity range: Below 90% RH, non-condensing

Pressure range:  Ambient level

Dust/water resistance: IP20 (IEC 529)

Shock/vibration endurance: Strong vibrations at 33 Hz frequency can affect the detection limit

Storage conditions:

Temperature range: -20 °C – +60 °C

Sample gas conditions:

Temperature: 0 – +49 °C, non-condensing

Pressure: 930 mbar – 1100 mbar

Moisture: Dew point +8 °C or higher

Gas flow: Approx 1 liters/minute

Particulates < 1 μm

General 

Dimensions: 48,4 cm W x 13,9 cm H x 40,5 cm D (19,1 in W x 5,5 in H x 16,0 in D)

Weight: Approx. 13 kg

Total internal gas volume: 30 ml

Gas connections:

Push-in connector for 6/4 mm tubing

Electrical connections:

Input voltage: 100 - 240 Vac, 50 - 60 Hz

Input power: 100W

Interface: Ethernet, USB1.2, RS-232, and RS-485

Measurement specifications 

Response time: Dependent on the channel integration time (C.I.T.) and the gas exchange period defined. Typically from 30 seconds to few minutes.

Detection limit: Gas dependent. Typically in the subppm region.

Dynamic range: Typically 5 orders of magnitude (i.e. 100 000 times the detection limit)

Zero drift: ± Detection limit per 1 month

Span drift: 3% of measured value per 1 month

Repeatability: 1% of measured value in operational conditions at the calibration concentration Accuracy: Same as the calibration gas accuracy at the calibration concentration. Typically 2-5%.

Temperature stability: Ambient temperature change within the operational temperature range will not cause drift

Pressure stability: Sample gas pressure change within the pressure range will not cause drift