Model 657C-1 relative humidity and temperature transmitter is housed in a die-cast aluminum protective enclosure with a gasketed cover. This dual-purpose device includes two two-wire circuits to simultaneously produce separate 4-20 mA output signals for relative humidity from 0 to 100% and temperature from 32 to 212F. Accuracy for humidity is ±2% from 10 to 90%, and for temperature it is ±1F over the full range.
Dwyer Instruments Inc., Box 373, Michigan City, IN 46361, FAX (219) 872-9057.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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.