EMS770 - Non Compliant 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 EMS770 LED OPACITY/DUST MONITOR 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 EMS770 LED DUST/OPACITY MONITOR The EMS770 is an economical modulated single-pass Opacity Monitoring System with a user friendly microprocessor controller. Key Features ? Microprocessor controller ? Communications via 4-20 mA and RS485 MODBUS ? Green LED technology ? Immune to ambient light ? LED source guarantee of 70,000 hours ? Mounts to standard 1” NPT pipe ? Light weight and user friendly Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com EMS770 LED DUST/OPACITY MONITOR System and Measurement Principle The EM770 system consists of a green LED light source mounted on one side of the stack or duct and a detector mounted on the other. The LSEM (Light Source Electronic Modulation) measurement beam is projected across the stack to the detector. The output of the detector is analyzed and displayed on microprocessor controller. This signal can then be sent via 4-20mA output or RS485 MODBUS to recording devices. Applications ? Boilers ? Crematoriums ? Commercial Exhaust Systems ? Combustion Furnaces ? Bag Houses ? Duct Fire Alarm Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com EMS770 OPACITY SPECIFICATIONS Control Unit: Microprocessor Controller 24VDC Power +/-10% Approvals CE and UL Listed Panel Mount or Din Rail Compact Size 3.78” X 3.78” x 5.52” (96 x 96 x 64 mm) Environment IP65/NEMA4X (when panel mounted) Display LCD Back Light Communications RS/485 Port – Supports MODBUS Protocol Memory Backup Battery 7 years typical Outputs Two 4-20mA, Opacity field programmable full scale Relays 6, SPST relays for alarms, 120VAC or DC High Opacity Alarm 1 relay, display icon, adjustable set point and adjustable delay Early Warning Alarm 2 relays, display icon, adjustable set point Boiler Shut Off 1 relay high opacity alarm triggers a boiler shut off relay contact Audible Alarm 1 relay triggered by the high opacity with reset push button to silence Air Purge Alarm 1 relay, digital input for indication and alarming for loss of air flow. Ambient Temperature Range +4 to +52o C (+40 to + 125o F) Sensor Electronics: 115 VAC, 50/60 Hz, 1 amp +10%; 230 VAC, 50/60 Hz, 0.5 amp +10% Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com Sensors: Enclosure NEMA-1 Receiver over all dimensions 6.75 x 2.0 inch (17 x 5.0 cm) Transmitter over all dimensions 6.75 x 2.0 inch (17 x 5.0 cm) Lens clean air inlet 1/8 inch N.P.T. <0.5 lpm Path Length 24 inches to 15 Ft (61 to 457cm) Optical System Single Pass Transmitter/Receiver weight Transmitter: 1.25 Lbs (0.56kg), Receiver: 0.9 Lbs (0.41kg) Light Source LED Green LED > 6 years) Ambient Temperature Limits From +4 to +52o C (+40 to + 125o F) Process Gas Up to 750o F (400 o C), standard (higher available-contact factory) Mounting Flanges Mounts to 1 inch pipe nipple (NPT) - Others available Ambient Light Immunity Solid-state electronic LED modulation Wiring 2 pair twisted shielded cable, 22 AWG Design and Performance: Peak and Mean Spectral Response Photopic; 515 to 585 nm, less than 10% of peak response outside the desired 400 to 700 nm region. Angle of View < 6.0 o from optical axis Angle of Projection < 6.0 o from optical axis Accuracy +/- 3% opacity to 88% opacity, +/- 5% opacity from 89% to 100% Response time < 5 second * Calibration check External with span filter and clear condition zero adjustments. * Optional equipment Environmental Monitor Service, Inc. PO Box 4340, Yalesville, CT 06492 Ph. 203.935.0102, Fax 203.634.6663 Email: sales@emsct.com