ML ® 660 Continuous Emission Monitoring System
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35 Inverness Drive East Englewood, Colorado 80112, U.S.A. Phone: 303-792-3300 Fax: 303-799-1409 Email: Tml_sales@teledyne.com www.teledyne-ml.com ML ® 660 Continuous Emission Monitoring System THEORY OF OPERATION The ML®660 or 660 ®Open Architecture (OA) is a pre-engineered Continuous Emissions Monitoring System (CEMS) designed for use in EPA 40 CFR Part 60 and Part 75 compliance applications and for process control. This system can be configured to accurately measure SO2, NOx, NH3, CO, CO2, and /or O2 on a dry basis. Both configurations of the ML®660 CEMS consist of a heated probe, heated sample umbilical, and single bay cabinet. Each system includes analyzers, control equipment, and a sample conditioning package. Using conventional extractive principles, a vacuum pump draws unconditioned, temperature controlled (above dew point) stack gas through the filtered probe, heated sample line, and into the sample conditioner where moisture and fine particulate are removed. The now dry, cool stack gas is delivered to a sample manifold for distribution to each analyzer. A programmable logic controller (PLC) performs all automatic sequencing of the sample cycle, daily calibration cycle, and backpurge cycle. During calibration mode, zero and span gases are injected into the probe head to comply with EPA calibration requirements. Backpurge air is delivered to the probe on a periodic basis to clean the heated probe filter, providing months of continued operation without maintenance. In addition, the PLC has the ability to log fuel flows and provide the required analog outputs in units of diluent corrected ppm concentrations (ppmc), Lbs/MBTU, and Lbs/Hr. Standard relay outputs that signal system status and fault information are also generated from the PLC. A RegPerfect® Data Acquisition System (DAS) may be attached to the PLC via Ethernet to provide long term data collection, compliance report generation, remote control and diagnostic information. The ML®660 is a self-contained system requiring single point attachment for power, instrument air, and calibration gases. All utility distributions are routed through the ML®660 internally. No duplication of utilities is required on the stack. This system is well suited to generate reliable and accurate process control information. Typical applications include gas turbines, industrial sources, and power boilers. State of the art TML T-Series® analyzers are utilized for pollutant monitoring. This allows a single source for system as well as analyzer support. Automatic, local and remote initiation of any system sequence is available. This includes the ability to zero and span a single analyzer both through the entire sampling train or directly at the analyzer to diagnose sampling system anomalies. Minimal maintenance is required. Weekly manual calibrations, quarterly probe checks, and quarterly filter changes are typically all the system requires to achieve uptime of 95% or greater, and Self-diagnosing alarm package. The ML®660 will alarm the user for sample train heater failures, sample conditioning failures, probe and sample line pluggage, and analyzer faults. This system is smart enough to protect itself during a fatal fault condition thereby eliminating the possibility of moisture contamination.

SPECIFICATIONS PROBE: Standard 316L Stainless Steel or Hastelloy probe straw EPA approved lengths 5-50 micron filter Heated head maintained above 250°F Insulating jacket provided PROBE SUPPORT BUNDLE: ¼” Teflon calibration line ½” polyethylene backpurge line 16 AWG triad for probe heater power Fire retardant jacket GAS ANALYZERS: Model Number T300, U, M, H for CO Model Number T200, U, M, H for NOX Model Number T100, L, H for SO2 Model Number T200, for NH3 Model Number T360, T801, T802, T803 for O2/CO2 RANGES: CO NOx SO2 O2 CO2 NH3 HEATED SAMPLE LINE: 3/8” Teflon or 316 Stainless Steel...