Land Model 4500 Mk III dust concentration monitoring instrument

The Land Model 4500 Mk III combines the features of three patented technologies to make it the most accurate and reliable stack opacity measurement and dust concentration monitoring instrument available. The Model 4500 Mk III uses a patented highly homogeneous advanced LED light source combined with a patented Flood LED to achieve the highest levels of stability and accuracy. Its “no-moving-parts” optical system provides the compact dust emissions monitor with exceptional reliability. The Model 4500 Mk III achieves the highest available performance specifications as defined by internationally recognized ASTM Standard D6216-Standard Practice for Opacity Monitor Manufacturers to Certify Conformance with Design and Performance Specifications. It is suited for all types of industrial applications where dust emissions measurement is required and carries a wide range of compliance and performance approvals, including US Environmental Protection Agency. The Model 4500 Mk III includes options for adapter flanges, air purging, and other accessories that make upgrading existing opacity monitoring systems quick and hassle free. The device is able to report data as opacity, dust density, or optical density. It features a fully automatic zero checking and drift compensation system. An automatic span check mechanism confirms the instrument’s calibration at user-defined intervals.