Southern Analytical process analyzers, process monitors and instrumentation for on-line, in-situ and at-line measurement systems, providing continuous single or multicomponent concentration. Techniques employed include: photometric (use of discrete photometers), spectrophotometric (using full spectrum spectrometer), FTIR (FT-IR), FT-NIR, photodiode array (diode array or PDA) UV/VIS (or alternatively single region NIR, UV or VIS), NIR, Mass Spectrometers, tunable diode laser/lasers (TDL) and more... These systems are applied in: polymer melt monitoring for additives; density and other properties; sulfur (sulphur) recovery unit (SRU) tail gas analyzers (air demand and ratio analyzers); Claus, Modified Claus and Superclaus process plant control; amine based tail gas treaters (TGTUs); low-level moisture analyzers; quality of natural gas for moisture, H2S, hydrocarbon dew point (dewpoint); and, gas, liquid, solids composition analysis. Southern Analytical can provide complete integrated analyzers and process control monitors with sampling systems, analyzer enclosures (wall mounting enclosure, shelter or house) and output for plant process control. We offer analyzers for: H2S (hydrogen sulfide), SO2 (sulfur dioxide), COS, CS2, , NO, NO2, NOx, Cl2 (chlorine), chlorine dioxide, NH3, ammonia, BTX, BTEX, benzene, toluene, xylene, aromatics, CO, CO2, color, Saybolt color, Tag Robinson color, APHA color, ASTM color, ASTM 1500 color, Hazen color, Platinum Cobalt color, Sulfur vapor, total sulfur, MEHQ, TBC, H2O, moisture, HRVOC, VOCs, Oxygen (O2) and trace impurities. Our process analyzers have been used for measurements in Refineries, Power Plants, Chemical and Petrochemical plants for process quality, control, as well as continuous emissions monitoring (CEM or CEMs)...
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Southern Analytical Inc.

Southern Analytical, Inc.
19407 Oil Center Boulevard
Houston, Texas 77073

Phone: (281) 591-0800
Fax: (281) 591-0052

Toll-Free: (888) 591-6300

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Continuous Emissions Monitor

Model 922 Multi-Gas Analyzer for SO2, NO, NO2, NOx and Others

The Model 922 SO2/NO/NO2/NOx analyzer, designed and manufactured by AMETEK Canada, is a second generation analyzer which has been specifically developed to measure stack gas emissions. The unit analyzes for SO2/NO/NO2 and provides output signals for SO2, NO, and NO2. The NO and NO2 signals combined are shown as NOx. The analyzer develops output signals which are equivalent to the concentrations of the principal gases. The simplicity of design provides for minimal maintenance, maximum reliability and maximum on-line performance.

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Product Technical Specifications:

Model 922
Methodology: Non-dispersive ultraviolet
Speed of response: 90% in less than 30 seconds
Accuracy: < 1% full scale
Temperature stability: < 0.1 ppm per deg. C (SO2)
< 0.25 ppm per deg. C (NOx)
Electrical classification General purpose
Electrical outputs Four 4-20 mA current outputs
Full scale ranges: SO2: 50 ppm to 0.5% (5000 ppm)
NO: 50 ppm to 1000 ppm
NO2: 50 ppm to 1000 ppm
Physical dimensions: Height: 180 mm(7")
Width: 480 mm (19")
Length: 600 mm (23.5")
Weight: 12.3 kg. (27 lbs.)

Product PDFs:
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