The General Monitors 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 Photoacoustic Gas Monitor is stable and highly selective to the gas of interest. The Monitor can operate for months with virtually no zero drift. The PA4000 Photoacoustic Gas Monitor has detectability as low as 0.01 ppm for certain applications.
The General Monitors PA4000 Photoacoustic 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 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 PA4000s sensitivity.
The PA4000 Monitors the signal and can operate three alarm levels at a software-selectable gas concentration values. The General Monitors PA4000 Photoacoustic Gas Monitor can be configured to monitor from up to eight remote areas. The display indicates the monitored location and the corresponding gas concentration at each location.
Photoacoustic infrared (IR) technology allows gas detection in applications where contaminants or interferants preclude use of other techniques
Concentration range from %v/v, ppm, to ppb depending on gas make it suitable for monitoring gases in several applications
Easy to install, operate, and maintain for low cost of ownership
Operates over a wide temperature range for applications in numerous environments and configurations
Easy-to-read display showing gas concentration(s) and alarms provide ease of operation.
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.
Approvals/Standards:
UL
C-UL
