smoke and particulates monitoring Combustion & Environmental Monitoring

model 4200 smoke and particulates monitor Key Features and Benefits Small, lightweight and compact - easy to locate and install High reliability, low maintenance - no moving parts Measurement Output in Opacity or mg/m3 - flexible configuration Wide range of optional accessories - configure to meet process needs Simple keypad operation - straightforward setup, calibration and diagnostics Stability and reliability for continuous monitoring. Proven economical technology for performance optimisation Leading Technology The patented dual LED technology of the Model 4200 has proven itself worldwide...

3 High Brightness Red LED 4 IP65 / NEMA4 enclosure 5 Built-in Audit Jig, and Check Reflector 6 Optional air-servo operated Fail-safe Shutter 7 *Patented ‘flood LED’ technology 8 Integral Control Panel *The Model 4200 uses the Land patented Flood LED Technique UK Patent No. 2287785 U.S. Patent No. 5,617,212 Measurement Principle The cross-stack, double-pass measuring system comprises a transceiver and retro-reflector unit. The transceiver has a high intensity source LED, which sends a beam of light through a diffuser and onto a beamsplitter. Half of the light is transmitted via a lens to the retroreflector...

Measuring System Technique: Operating Wavelength: Light source: Ranges: Linearity: Resolution: Drift: Angle of Projection: Angle of View: Response Time: Averaging: Suitable for Stacks: Flange-to-flange Pathlength: Calibration: Method: Dust: * Performance reduced for pathlengths > 7.5 m / 25 ft Double pass / path transmissometry 623 ± 20 nm High intensity red LED Opacity: 0 - 20 % to 0 - 100% Dust Density: 0 - 100 to 0 to 999 mg/m3 < 2 % of range* 0.1 % Opacity; 0.1 mg/m3 Dust Density < 3 % of range per month < 5° < 5° 5 seconds to 90 % of final value Selectable from 1 s to 59 s, 1 min to 59 min,...