This rugged and compact instrument offers sensitive and reliable field operation with an optimized oven and detector design. Its access panel allows for easy filter service and calibration. New safety mechanisms and inline pressure regulators offer superior flow control.
This instrument is the only commercially available field deployable OC-EC analyzer with true laser-based pyrolysis correction and compatibility with accepted NIOSH 5040 and IMPROVE methods. It has a computer controlled flow system for enhanced sensitivity and fast analysis times. It also has a reduced need for support gasses. The Model-4 Semi-Continuous OC-EC Field Analyzer has been extensively tested at several EPA super-sites and demonstrated excellent sensitivity, compared with other co-located integrated filter sampling systems.
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