FLUID POWER: Bray Controls has expanded and improved its Series 52 2N1 ProxSensor line of valve status monitors to now include AS-I, DeviceNetTM and PROFIBUS® DP BUS network units with a solenoid drive, plus many other new features. Bray’s 2N1 ProxSensors combine two proximity sensors in one compact, self-contained and fully sealed enclosure. These valve status monitors deliver the rapid, bounce-free electronic valve signaling required for PLC, computer and solid-state circuitry used in process control and information networks. All units have a five-year warranty against material or workmanship defects. Bray’s new BUS Intelligent 2N1 ProxSensors offer all the features of the dc and ac units, plus network protocol/communication and remote access to valve position and diagnostics. These units contain two BUS-powered proximity sensors and applicable network pin and solenoid drive connections. The Series 52 is engineered to be impervious to vibration, moisture and most chemical and corrosive agents since all internal components are completely encapsulated with epoxy resin inside the rigid, fully sealed polymer enclosure. Multi-pin electrical connectors are weatherproof and provide quick-connect installation. Standardized factory pre-wiring prevents field wiring errors. The 2N1 ProxSensor mounts directly to Bray pneumatic actuators, eliminating contamination buildup between sensor and actuator.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
Neil Fromer is the executive director of the Resnick Institute, a program for energy and sustainability at the California Institute of Technology, working to develop new ideas and research technologies related to providing a sustainable future. He spoke to us about the severity of the current drought in California and how solar energy can help prevent such situations in the future.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.