OTT RLS, non-contact radar level sensor - Hach Hydromet - #1

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Performance Features  Quick response time: 20 seconds  Measurements are unaffected by: – Air temperature – Wave action – Humidity – Flood events – Floating debris – Contaminated water  Low power consumption during measurement and stand-by  Low maintenance  Compact housing with flat antenna design Installation  Versatile installation, easily mounted to a bridge, frame, pipeline, or extension arm  Simple mounting on slanted surfaces  Ideal for monitoring remote and hard to reach locations Measuring Principle  Impulses are transmitted by the RLS’s transmitting antenna, then reflected off the water’s surface and received by the RLS’s receiving antenna  Approximately 16 individual measurements are conducted per second and averaged after 20 seconds to minimize influences of waves  The time delay from transmission to receipt of the reflected impulse is used to calculate distance from the RLS to the water surface RLS Non-Contact Radar Sensor Specifications Measuring Range 2.6-115 ft. (0.8-35 m) Accuracy 2.6-6.6 ft.: ±0.03 ft. 6.6-98.4 ft.: ±0.01 ft. 98.4-115 ft.: ±0.03 ft. Resolution 0.01 ft. (0.001 m) SDI-12 Interface Beam Width 12° Beam Angle ±6° Sensor Technology Radar Transmitting Frequency 24 GHz Pulse Radar Output SDI-12/4-20mA or RS-485/4-20mA Power Requirements 9.6 to 28 Vdc Power Consumption Sleep: < 50 ìA @ +12 V equal to < 0.6 mW Active: 12 mA @ +12 V equal to < 140 mW Environmental Conditions Operating Temperature: -40 to 140°F (-40 to 60°C) Storage Temperature: -40 to 185°F (-40 to 85°C) Relative Humidity: 0-100% (non-condensing) Dimensions 8.7 in. x 6.0 in. x 7.5 in. (222 mm x 152 mm x 190 mm) Weight 4.6 lbs. (2.1 kg) Ingress Protection Rating IP 67 Hach Environmental 5600 Lindbergh Drive Loveland, CO 80539 (800) 949-3766 (970) 669-3050 fax (970) 461-3921 hachenvironmental.com Lit. No. T017 Rev 1 H8 Printed in U.S.A. ©Hach Company, 2008. All rights reserved. Accurately and efficiently measures surface water level. Simple installation with no need to enter the water. The RLS was designed specifically for surface water non-contact level measurement. Accuracy ±0.01 ft.