atmosFIR CEM is a complete emissions monitoring system incorporating the atmosFIR 19” FTIR analyser. As completely hot and wet emissions measurement, atmosFIR CEM is ideal for complete measurement of multiple gases from applications such as incineration and power. A standard gas suite of NO, NO2, N2O, SO2, NH3, HCl, CH4, O2, CO2 and H2O is provided, but with the powerful FTIR analyser, further gases can be added easily in software.
At the heart of system is the high-resolution, robust and proven FTIR spectrometer offering high signal throughput, low-noise and long lifetime of components. atmosFIR has been developed to incorporate the latest improvements and advantages in technology, The atmosFIR FTIR analyser contains an in-built sampling system and is designed for ppm-level emissions monitoring. The analyser can be used as a portable or bench-top unit as well as part of the installed CEM system.
For emissions applications, atmosFIR CEM contains complete management of the heated sampling system from within the system – heated lines, probes – as well as comprehensive span gas options, including 6 span valves that can be used to calibration the analyser directly or "to probe".
Protea’s PAS-Pro operating software not only collects and analyses the infrared spectra with the latest in analytical algorithms (with no limit on the number of gases that can be measured) but also manages the complete automation of the system. Modbus Serial, Modbus TCP/IP and OPC Server data exchange is provided as standard, and the monitoring results are reported both Raw and Corrected in real-time.
|Double-pivot interferometer with increased robustness. Permanently aligned optics, giving repeatable measurements and high light throughput. The scanning mechanism has a lifetime guarantee|
|Resolution||1cm-1,2cm-1, 4cm-1, 8cm-1 variable resolutions. 1cm-1 for standard emissions monitoring|
|Optics:||Zinc Selenide beamsplitter (non-hygroscopic)|
|Spectral Range:||485 - 8500cm-1|
|Reference laser:||Solid state laser (no scheduled maintenance required). Long lifespan (10 years) compared with HeNe laser|
|Source:||Mid-IR source, with electronic stabilization for long lifespan|
|Detector:||DTGS with signal sampling at 24-bit ADC|
|Sample Cell:||Materials: Ni-coated Al cell. Proprietary alloy mirror substrate with multi-layer coating.
Pathlength: 4.2m standard pathlength
|FTIR Sampling system:||Heated pre-cell filter for extra protection against dust
Zirconia oxygen sensor for parallel O2 measurement
Automated Nitrogen Purge Valve
|atmosFIR CEM Sampling Specifications|
|Sampling Rate:||2.5lpm, controlled via with venturi orifice|
|Sample Control:||Heated eductor post-FTIR|
|Sample Line:||4/6mm PTFE core heated to 180°C. Sample line temperature alarm|
|Sample Probe:||2um PTFE filter heated to 180°C. Sample probe temperature alarm|
|Span Gases:||6 span gas valves, assignable to various gases and concentration levels|
|Span Gas Delivery:||Direct to analyser to Span to Probe selectable|
|Installation and Utilities|
|Cabinet:||1900(h) x 600(w) x 800(d) plus 100mm plinth for installation|
|Supply and Power Consumption:||1 x 13A for cabinet. Probe powered locally at stack
2.5kW (including 10m heated line and sample probe
|Ambient Temperature:||5°C < T < 30°C without air conditioner on cabinet|
|Gas Utilities:||Instrument Air @ 4 bar g for eductor. Dry, oil and particle free
99.999% N2 @ 0.5 bar g for instrument zero gas. Automatic zero every 24 hours
Span gases @ 1 bar g for system checking
|atmosFIR CEM can be provided with core atmosFIR FTIR gas analyser set-up for any number of different process or emissions applications.
Contact Protea for specific gas analysis requirements.
The standard incineration emissions application includes the following gases and ranges.
|Typical Response Time:||120secs at 1cm-1 resolution. (T90)|
|Linearity||<2% range||Repeatability (Ó)||<1% range||Temperature Drift||<2% range per 10K|
|Standard Combustion Emissions Model|
|EMC:||EN61326-1: 2013 Electrical equipment for measurement, control and laboratory use – EMC requirements - Part 1
IEC 61010-1 and EN 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use – Part 1: general requirements
|MCERTS/TUV:||Compliant with requirements of EN 15267-3. Certification pending Q2 2017|
|US EPA:||Compliant with U.S. EPA 40 CFR Part 60|