Ambient Sulfur Dioxide Analyzer, Power : 50/60 Hz (to be specified)

APSA-370 Ambient Sulfur Dioxide Analyzer
The APSA-370 is a device for the continuous monitoring of atmospheric SO2 using UV fluorescence. The APSA-370 employs an proprietary, internal dry-method sampling device to achieve the highest levels of sensitivity and accuracy. The dry-method, due to its minimal maintenance requirements capability of continuous monitoring and instantaneous analysis of gas in its unaltered state, has been a preferred method for monitoring the atmospheric pollution.
Features
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The APSA-370 uses an innovative detector and a new optical system for low background, high sensitivity (0.05 ppm F.S.), and greatly improved stability.
• The fluorescent chamber design gives measurements with minimum influence from moisture.
• The unit has built-in aromatic hydrocarbon cutter with a selective transmission membrane. This reduces the influence of interference components. Coupled with HORIBA’s unique flow-path, it also makes it possible to extend the working life of the cutter and to take measurements effects of sample flow variations.
• In comparison with the FPD method, the APSA-370 design is (1) highly selective for SO2, (2) requires no supplemental gas, and (3) gives linear output.
• Compensation for the lamp's luminous energy decline guarantees prolonged calibration stability.
• The sample inlet has a built-in Teflon filter.