PA4000 Photoacoustic Gas Monitor
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MODEL PA4000 Photoacoustic Infrared Gas Monitor • Concentration range from %v/v, ppm, to ppb depending on gas • Suitable for monitoring gases in several applications • Photoacoustic infrared technology • Easy to install, operate, and maintain • Operates over a wide temperature range • Easy-to-read display showing gas concentration(s) and alarms Description The PA4000 photoacoustic gas monitor uses infrared sensing technology, allowing accurate measurement of gas vapors with minimum interference from other vapors. The monitor provides precise, low-cost, high-performance monitoring for a variety of gases such as hydrocarbons, solvents, alcohols, CO2, CO, and toxics. The PA4000 is stable and highly selective to the gas of interest. The monitor can operate for months with virtually no zero drift. The monitor has detectability as low as 0.01 ppm for certain applications. For most installations, gas monitoring begins after simply mounting the instrument, connecting the sample line, and powering the unit. The monitor typically draws the gas sample via an internal pump, allowing the unit to be mounted in a convenient operator location if the area to be monitored is inaccessible. A pressurized sample can also be delivered to the unit, eliminating the necessity for the internal pump. An internal flow switch alerts operators if the gas sample is blocked by either a dirty end-of-line filter or clogged sample line. The direct-reading display shows the actual gas value as well as any alarms and diagnostic messages. The gas monitor comes factory calibrated, ready to detect a specific gas in the range desired. Cross-sensitivity to water vapor, a common problem with other types of infrared analyzers, does not occur with this instrument. Its proprietary sensing technique determines • Allows gas detection in applications where contaminants or interferants preclude use of other techniques • Low cost of ownership • Can be installed in numerous environments and configurations • Ease of operation the amount of water vapor in the sample and subtracts it from the gas reading. This permits the gas reading to be extremely stable, with no compromise in the unit’s sensitivity. The unit monitors the signal and can operate three alarm levels at a software-selectable gas concentration values. The PA4000 Gas Monitor can be configured to monitor from up to eight remote areas. Standard features include vacuum fluorescent display, audio alarm, four relays, and 4-20 mA and 0-10 V outputs. The unit can be housed in GP, XP, or rack-mount enclosures. The PA4000 can be expanded to monitor up to 8 locations simply by adding the multipoint sequencer option. The display indicates the monitored location and the corresponding gas concentration at each location. Applications • Agriculture • Chemical • Construction • Electric Utility • Hazardous Materials • Indoor Air Quality • Medical • Mining Oil and Gas Pulp and Paper Spray Painting Water and Wastewater Welding

MODEL PA4000 System Specifications Type: Range: Photoacoustic Infrared 0-10 ppm 0-100 ppm 0-1000 ppm 0-1% by volume 0-10% by volume 0-100% by volume 0-100% LEL For 0-1000 ppm range: Accuracy: 0-100 ppm ± 2 ppm; 100-1000 ppm ± 10% reading Linearity: Sensitivity: Resolution: Note: Response Time: Rack Mount: Operating Temperature Range: 32°F to +122°F (0°C to +50°C) Storage Temperature Range: -67°F to +158°F (-55°C to +70°C) Temperature Effect: 1 ppm Specifications for other ranges dependent upon application. Consult factory. Input Power: Updated reading every 7 seconds UL, C-UL (electric...