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OPAC20/20 SPECIFICATIONS
The OPAC20/20 meets all current and proposed EPA Design and Performance specifications in 40 CFR 60, appendix b, performance specification 1. Manufacturers' certificate of conformance (MCOC) included. Operational:
Light source: green light
emitting diode Accuracy: +/- 0.5 % opacity Response time: < 3 seconds Angle of projection: less than 3 degrees Angle of view: less than 3 degrees Resolution: 0.1 % opacity Alignment sensitivity: +/- 0.35 degrees for 2% error Spectral response: 99% of energy between 500nm and 600nm Alignment verification: direct view port and electronic (electronic alignment tracking is continuous and will output an alarm when alignment drift exceeds 4% opacity.) Calibration: automatic ( hourly, non-interfering), output to recording device 1 to 24 hours selectable 24 hour drift: Zero calibration drift: less than 0.5 % Span calibration drift: less than 0.5 % Calibration correction: automatic, recorded, displayable with alarm Path length correction factor: automatic, user displayed, adjustable External calibration: included (external zero jig and two neutral density filters) Stack communications: RS- 422 digital link, impervious to ambient electrical noise. Outputs: Two or Four linear analog outputs, two RS - 232 digital output, all outputs field selectable. Eight spdt alarm contact relays, all field selectable Ranges: Fully field selectable, opacity, transmittance, optical density, calibration data, dirty window compensation. Environmental: Ambient temperature: - 40 to +160 F Media temperature: maximum 2000 F Pressure: - 10 up to + 10 inches H2O Moisture: dry to saturated ( non condensing) Path length: 2 to 32 feet standard ( to 60 feet optional ) Electrical requirements: Stack mounted weather enclosures: 15 vac / 30 amps (220v / 50hz available) Remote control unit: 115 vac / 5 amps (220v / 50 Hz available) Stack to control unit wiring: two shielded twisted pair for a digital link Physical: Weather enclosure mounting: customer supplied 4 inch 150 pound flange (adapters are available to mount to existing 6 inch 150 pound flanges) Weather enclosure dimensions: Transmissometer side: 22" wide x 30" high x 28"deep. 75 Lbs. Retro reflector side: 22" wide x 30" high x 17" deep. 60 Lbs. Remote control unit: Height: 5.5 inches Width: 8.5 inches Depth: 8.0 inches Weight: 9.0 Lbs.
© Phoenix instruments Inc. 1999
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