Dry Processing

Continuous level sensor

By Wayne Labs, Senior Contributing Technical Editor

BinMaster Level Controls’ SmartBob AO level sensor features an integrated 4-20 mA analog output to a PLC for monitoring bin-level measurement data. A push-button user interface built into the sensor’s circuitry is used to configure the settings for each device. The sensor features 2 user-configurable relays. The user selects any 2 of 4 different relay options in any combination including measurement status, high-level alarm, low-level alarm or error alarm (e.g., the sensor did not take a measurement). The unit includes the output of a 22 mA error signal if the device should encounter a “stuck-top” or “stuck-bottom” condition and a soft start feature that reduces wear on the motor.

BinMaster; 800-278-4241; www.binmaster.com

KEYWORDS: PLCs sensors

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Wayne Labs has more than 30 years of editorial experience in industrial automation. He served as senior technical editor for I&CS/Control Solutions magazine for 18 years where he covered software, control system hardware and sensors/transmitters. Labs ran his own consulting business and contributed feature articles to Electronic Design, Control, Control Design, Industrial Networking and Food Engineering magazines. Before joining Food Engineering, he served as a senior technical editor for Omega Engineering Inc. Labs also worked in wireless systems and served as a field engineer for GE’s Mobile Communications Division and as a systems engineer for Bucks County Emergency Services. In addition to writing technical feature articles, Wayne covers FE’s Engineering R&D section.