4-20HR-MaxSonar® -WR/WRC™ Series
15Pages

High Resolution, Precision, IP67 Weather Resistant, Ultrasonic Range Finders MB7460, MB7469, MB7480, MB74895 The 4-20HR-MaxSonar-WR sensor line is a high performance ultrasonic precision rangefinder that provides high accuracy, high resolution ultrasonic range detection in air. The 4-20HR-MaxSonar-WR sensor line is a cost-effective solution for automation/process control applications where precision range-finding, low-voltage operation, space saving, low cost and IP67 weather resistance is needed. This sensor component allows users of other more costly precision rangefinders to lower the cost of their systems without sacrificing performance. The sensor output works with existing PLC equipment and is also suitable for applications with long cable runs. The 4-20HR-MaxSonar-WR/WRC sensor line features 1.6-mm resolution, superior rejection of outside noise sources, internal speed-of-sound temperature compensation and optional external speed-of-sound temperature compensation. The sensors are factory calibrated to provide stable and reliable range readings. With a maximum range of 5 meters, these ultrasonic sensors detect objects from 5-mm and ranges to objects from 50-cm to maximum range. Objects closer than 50-cm are typically reported as 50-cm (See Close Range Operation). • Operating temperature range Easy to Use Component Precision Ultrasonic Range from -40°C to +65°C • Robust and easy to use interface Sensing • Operating voltage from 10V to 32V • Excellent noise rejection • A fraction of the cost of other • IP67 rated • Small and easy to mount precision rangefinders Applications & Uses • Factory-matched accuracy provides a • Stable, reliable range readings • Target size compensation provides • Automated process control systems typical accuracy of 1% or better of greater consistency and accuracy distance to target1 • Tank level measurement • Auto handles acoustic noise1,3 • Reading-to-reading stability of • Weather station monitoring • Calibrated sensor eliminates most 1.6-mm at 1-meter is typical1 • Bin level measurement sensor-to-sensor variations • Compensation for target size • Corn level measurement1 variation and operating voltage range • Handles multiple sensor • Proximity zone detection environments • Temperature compensation is • People detection standard • Robot ranging General Characteristics • Additional chemical resistance • Long range object detection • 4-20mA with ~1.6mm resolution available2 • Environments with acoustic and • Refresh rate of ~8Hz electric noise Low Power Requirements • Determines range to largest object • Height monitors • Average power draw of 20-40mA (MB7469, MB7489) • Auto sizing • Other interfaces (non4-20mA) • Determines range to first detectable available with lower current draw object (MB7460, MB7467, MB7480, • Box dimensions MB7487) • Flexible, low supply voltage Notes 1 Users to evaluate the sensor performance requirements simplifies battery • Excellent clutter rejection 2 F-Option provides added protection from hazardous powered designs • Low-cost ultrasonic rangefinder chemical environments 3 By design • Low current draw reduces current • Resolution of ~1.6-mm 4 Part-specific timing information — see page 3 drain for battery operation 5 • Distance from 50-cm to 5-meters Please reference page 12 for part number key • Excellent MTBF of > 200,000 hrs. • Superior noise rejection4 Close Range Operation Applications requiring 100% reading-to-reading reliability should not use MaxSonar sensors at a distance closer than 50cm. Although most users find MaxSonar sensors to work reliably from 0 to 50cm for detecting objects in many applications, MaxBotix Inc. does not guarantee operational reliability for objects closer than the minimum reported distance. Because of ultrasonic physics, these sensors are unable to achieve 100% reliability at close distances. _______________________________________________________________________________________________________________________________________ Warning: Personal Safety Applications We do not recommend or endorse this product be used as a component in any personal safety applications. This product is not designed, intended or authorized for such use. These sensors and controls do not include the self-checking redundant circuitry needed for such use. Such unauthorized use may create a failure of the MaxBotix Inc. product which may result in personal injury or death. MaxBotix Inc. will not be held liable for unauthorized use of this component. Copyright 2005 - 2014 MaxBotix Incorporated Patent 7,679,996

General Operation The 4-20HR-MaxSonar-WR ultrasonic sensors are in-air, non-contact, object detection and ranging sensors that detect objects within an area. These sensors are not affected by the color or other visual characteristics of the detected object. Ultrasonic sensors use high frequency sound to detect and localize objects in a variety of environments. Ultrasonic sensors measure the time of flight for sound that has been transmitted to and reflected back from nearby objects. Based on the time of flight, the sensor outputs a distance value. 4-20 Sensor Connection Pin Out Pin 6 —...

4-20HR-MaxSonar-WR (MB7460 and MB7480) The MB7460 and MB7480 are the base models of the 4-20-MaxSonar-WR sensor line. These general purpose sensors are recommended unless specific requirements indicate other sensors may be a better fit for the application. All other sensors in this series are based off of this sensor model. The additional features are mentioned in their respective sections below. _______________________________________________________________________________________________________________________________________ 4-20HR-MaxSonar-WRM (MB7469 and MB7489) The...

MaxBotix® Inc. Copyright 2005 - 2014 MaxBotix Incorporated Patent 7,679,996 MaxBotix Inc., products are engineered and assembled in the USA.