EMS421 - EPA Opacity Monitors Brochure

Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com EMS421 ASTM D 6216 AND PS-1 COMPLIANT OPACITY & DUST MONITOR EMS421 Quality Manufacturing, Integrity and Dependable Service by Design Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com EMS421 OPACITY & DUST MONITOR The EMS421 provides continuous, low maintenance, precision measurement of Opacity. It is designed for monitoring visible smoke in the exhaust gas of industrial combustion or air filtration processes. Key Features ? ASTM D 6216 and 40 CFR 60 PS-1 Compliant ? 5.7” Color Touch Screen User Interface ? Long Life (70,000 Hours Guaranteed) EPA Compliant Light Source ? 5 Numerical and 3 Trend Display Screen Choices ? Dual beam measurement ? SD Card Data and Program Backup ? Automatic (Internal or External) and Manual On-Line Calibration ? Selectable Output Definition of % Opacity, Dust or Optical Density. ? Special Process Control Output ? Multiple Levels of Password Protected Settings and Diagnostics Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com EMS421 OPACITY & DUST MONITOR System and Measurement Principle The EMS421 system consists of an optical transceiver mounted on one side of the stack and a retro reflector mounted on the other. The LSEM (Light Source Electronic Modulation) measurement beam is projected across the stack to a retro reflector, which reflects it back across the stack. The output of the transceiver is sent to the touch screen user interface where the signals are analyzed. This intuitively designed controller includes five selectable displays and four 4-20mA outputs. Applications ? Power Plants ? Boilers ? Electrostatic Precipitators ? Filter Bag Houses ? Refineries ? Cement Plants ? Combustion Furnaces ? Process Industries Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com EMS421 OPACITY & DUST MONITOR Service Module with Digital Display The service module, located in the stainless steel weather cover, is used to pass signals to and from the transceiver and control unit. It initiates maintenance zero and span cycles and also provides an insertion point for an external current meter in the transceiver to the control unit’s 4-20mA loop. The service module is useful for trouble shooting and eliminates the necessity for a second technician. Optional Accessories ? Stainless Steel Weather Covers ? Air Blower/Mover System ? Certified Neutral Density Filter sales and calibration ? Flange Mounted Optical Alignment Tool ? Off- Stack Zero Kit ? Upgrade Kits for Many Competitors Models Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com Remote control unit: Graphic Display 5.7” Viewing area, 256 color. Measurement Ranges and (Resolution) -5 to 100% Opacity (0.1%), 0-2 Optical Density. (.001), 0-2000 mg (.1). Process Display screens 5 Numerical, 3 Trends. Home screen Navigation Touch Icons for: Calibration, Fault, Alarms, Settings, Displays, Service and About. Backup Back up by 2GB SD memory card. Optional upgraded storage for data logs, alarm history, data tables, backup ladder, HMI, and OS. 4-20mA Outputs Four (4) grounded reference, 800 ohms max individually customer selected F.S. ranges and modes. Relay Contacts 1-Fault, 8-alarms and 3-DAS notification. Alarm Reset Automatic and manual. Cal cycle initiate Manual, Remote and Internal Clock. OPLR (Exit Correlation Lx / 2*Lt) 0.3 to 1.0 Enclosure NEMA 13, 197X146.6X68.5mm (7.75" X 5.77" X2.7"). Environment Inside cabinet IP20 / NEMA1 (case), Panel mounted IP65 / NEMA4X (front panel), Operational temperature 0 to 50ºC (32 to 122ºF), Storage temperature -20 to 60ºC (-4 to 140ºF), Relative Humidity (RH) 5% to 95% (non-condensing) Power Requirements 24VDC (±4%), 40mA max. per unit. Network Protocol: MODBUS (ASCII or RTU mode), type RS-485, optically isolated, RS-232. Transceiver Service module: Power Requirements Transceiver power 120/240vac +/-10% 65va, Service Module 60va Display 5/8 inch (15.9 mm), 4-digit LED, selectable for % Opacity and % Transmittance Local zero/span Manual on demand Test jacks Transceiver to remote control current loop Diagnostics Loss of power, current loop open, maintenance mode. Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com Transceiver/ Reflector: Enclosure NEMA 4X watertight enclosure. Path Length Up to 50 feet Optical System Double Pass Light Source Aging Compensation Automatic Light Source Life > 7 years, Field replaceable without removal of the transceiver from the stack. Ambient Temperature Limits -4 o to +130 o F (-20 o to +54 o C) (Cold weather option available.) Alignment Verification Passive built-in through-the-lens system Mounting Flanges 3 inch IPS, 150# pipe flange Ambient Light Immunity Per ASTM D6216 <2% opacity, Solid-state electronic light modulation Design and performance: Meet or exceeds 40 CFR 60 appendix B, PS-1 and ASTM D 6216-03 Spectral Response Peak 500 to 600nm, less than 10% of peak response outside 400 to 700 nm. Angle of View/Angle of Projection AV <4o, AP <4o. Calibration Error/accuracy +/- 1% of full scale Response time < 10 second 24 Hour Zero/ Calibration Drift < 0.5% / < 0.5% Operational Period In excess of PS-1 required 336 Hrs. Zero/Span Calibration Manual or automatic with zero mirror and neutral density filter Process gas Up to 750 o F (400 o C) standard, higher available-contact factory.