AdvantEDGE - Model RDO Electrode - Optical Dissolved Oxygen Brochure

Optical Dissolved Oxygen RDO®measurement electrodeSERIESTMfor process applicationsInformation is subject to change without notice. Copyright © 2009 by HF scientific. All rights reserved. RDO is a registered trademark of In-Situ, Inc., Fort Collins, CO USAHF scientific 3170 Metro Parkway, Ft. Myers FL 33916 ph: (239) 337-2116 • • toll free: 888-203-7248fax: (239) 332-7643 • hf.info@wattswater.com • www.hfscientific.comAPPLICATIONS• Municipal water and wastewater treatment• Industrial water and wastewater• Aquaculture• Food/beverage process control• Dam discharge monitoringThe AdvantEDGE sensor uses the latest technology to measure dissolved oxygen (DO) in demanding environments. The AdvantEDGE series™ Optical Dissolved Oxygen RDO® sensor o ffers several advantages for monitoring DO in process applications: ROBUST• Inert construction will not corrode in high salinity samples• Insensitive to common interferences such as hydrogen sulfide, chloride, chlorine, ammonium, and many othersCOST EFFECTIVE OPTIONS• Choose models for use with the economical LD500 Local Display; providing 4-20 mA outputs and various communications protocols.• Or, choose models available with integral 4-20 mA, Modbus RS-485, and SDI-12 outputs for direct connection to SCADA or PLC; totally eliminating the need for a separate transmitter/controller. NO CALIBRATION HASSLES • When used with the LD500 Local Display, no calibration is required.• When connected directly to a SCADA or PLC, a one-time calibration is performed that lasts for 12 months.LOW MAINTENANCE• No electrolyte or membranes to replace.• Sensor cap lasts 1 year without the need for recalibrations.• Simply wipe the sensor cap periodically. Optional air blast accessory available.ACCURATE• 0.1 mg/L accuracy from 0 - 8 mg/L DO, and 0.2 mg/L accuracy from 8 to20 mg/L DO• Fast response to oxygen and temperature changes• Consistent, reproducible results (<0.05 mg/L reproducibility)Water Quality Measurement SolutionsLEAD FREE**LEAD FREE: The wetted surface of this product contacted by consumable water contains less than one quarter of one percent (0.25%) of lead by weight.*SIN PLOMO: La superficie mojada de este producto que entra en contacto con agua para el consumo contiene menos de la cuarta parte de uno por ciento (0,25%) de plomo por peso.*SANS PLOMB: *Les surfaces de ce produit en contact avec l’eau potable contien-nent moins d’un quart d’un pour cent (0,25%) de plomb par poids.Information is subject to change without notice. Copyright © 2009 by HF scientific. All rights reserved. RDO is the registered trademark of In-Situ Inc. HF scientific 3170 Metro Parkway, Ft. Myers FL 33916 ph: (239) 337-2116 • toll free: 888-203-7248fax: (239) 332-7643 • hf.info@wattswater.com • www.hfscientific.comThe AdvantEDGE sensor measures dissolved oxygen (DO) using the principle of “dynamic luminescence quenching.” The sensor (Figure 1) uses lifetime-based optical fluorescent technology to provide an extremely stable, accurate, low-maintenance DO sensor. The sensor measures the “phase” (or delay) of the returned signal compared to the excitation signal, and is thus based on the “lifetime” rather than the “intensity” of the luminescence. The presence of oxygen in the foil quenches the luminescence and causes a phase shift in the returned signal, detected by the photodiode. The phase difference between the blue excitation light and the return red light is measured, and the result is used to quantify DO.AdvantEDGE sensor dimensionsAdvantEDGE sensor features• Flexible power requirements—Use 8 to 36 VDC input or 3 wire 4-20 mA current loop (e.g., 35 mA at 12 VDC or 27 mA at 24 VDC).• Flexible, integrated open-architecture communication protocol—Includes industry standard Modbus communications over RS485, SDI-12, version 1.3 communication protocol, or 4-20 mA 3-wire current loop. Or, choose option for use with our LD500 Local Display. LD500 is available with 4-20 mA output or a variety of host protocols.• Compliance certified-CE, FCC Class B heavy industrial immunity and emissions certifications. AdvantEDGE sensor speci ficationsSensor Type Luminescent dissolved oxygen sensorTransmitter/local display Optional, not requiredRange 0 to 20 mg/L concentration 0 to 200% saturationAccuracy (DO) ±0.1 mg/L, 0 to 8 mg/L ±0.2 mg/L, 8 to 20 mg/LResponse time, cap T90: 30 sec T95: 37 sec @ 25°CResolution 0.01 mg/LUsage life of cap 1 year from the first instrument readingShelf life of cap 2 years from date of manufacture (install within 1 year from date of manufacture)Operating temperature 0° to 50° (32° to 122°F)IP rating IP-67 with cap off , IP-68 with cap installedCompliance Heavy industrial, IEC 61000-6-2:2005Storage conditions, cap 1° to 60° (33° to 140°F), in factory containerStorage conditions, sensor -5° to 60° (23° to 140°F)Salinity range 0 to 42 PSU, fi xed or real-time capablepH range 2-10 pHBarometric range 507-1115 mbar, fi xed or real-time capableInternal mounting thread 1¼-11½ NPTCommunications options Modbus RTU (RS485), 4-20mA, SDI-12Maximum cable length Up to 4000 ft (Modbus and 4-20 mA) or up to 200 ft (SDI-12)Warranty Sensor: 3 years from date of manufacture Cap: 2 years from date of manufacture SERIESTM2.25”8.0”1 1/4-11 1/2 NPTWater Quality Measurement Solutions1.8”Ordering informationOPDO1D3 equals length of cable in feet divided by 10Sensor with cap, 30 feet of fixed cable (standard), for use with LD500 Local Display.OPDO1CN No cable provided. Order separatelySensor with cap, Rugged Twistlock Titanium Connector, for use with LD500 Local Display.OPDO2D3 equals length of cable in feet divided by 10Sensor with cap, 30 feet of fixed cable (standard). For direct connection with SCADA or PLC. No Local Display.OPDO2CN No cable provided. Order separatelySensor with cap, Rugged Twistlock Titanium Connector. For direct connection with SCADA or PLC. No Local Display.LD500 Local Display/Transmitter for OPDO1D3 and OPDO1CN SensorsLDBB0A1 One 4-20mA analog output, 24 VDCLDBB0A2 One 4-20mA analog output, 100 - 240 VACLDCB0C1 Two 4-20mA analog outputs, two alarm/control/wash relays, 24 VDCLDCB0C2 Two 4-20mA analog outputs, two alarm/control/wash relays, 100 - 240 VAC*Digital protocol communications options available*Panel and pipe mount options availableLD500 Local Display SpecificationsFunctions and Features• 1/4 DIN enclosure• Display sensor and temperature data• Menu functions: Calibration, Configuration and DiagnosticsMounting Options• Conduit box, NEMA 4X (standard)• 1/2 DIN NEMA 4X panel mount (optional)Interface• Display: 2 line by 16 character LCD• Backlight: high contrast greenEnvironmental Conditions• Ambient operating temperature range: -20 to 65 °C• Maximum relative humidity: 95% non-condensing• Meets CE requirements for heavy industrial use• NEMA 4X housing, wall mount4 to 20 mA Current Loop Options• One isolated current loop (standard)• Two isolated current loops (optional)• Assignable parameters• Loop power provided by LD500Relays/Optional• Two 1 amp form C relays with NO and NC contacts• Assignable parameters• Configured for Alarm, Control, and Timer functionsPower Supply• Input: 10 to 30 VDC; 100 to 240 VAC optional• Power: 2W at 25 CWarranty• 1 YearThe LD500 is a universal display interface for the AdvantEDGE series™ sensor systems which includes the Optical DO RDO® system. When needed or desired the LD500 and be connected to the Optical DO RDO® sensor to provide up to two 4-20 mA outputs and two relays (depending on LD500 chosen). Revision 4-30-14Photodiodefor Sensor DiagnosticsFigure 1: AdvantEDGE sensor design