AutomationDirect's acuAMP line of current
sensors now includes ac ground fault sensors and dc current transducers and
The GFS series of ground fault sensors monitors all
current-carrying conductors in grounded single and three-phase delta or wye
systems. Available in fixed-core models, the GFS series features jumper-selectable
setpoints of 5, 10 or 30 mA. The sensors can accommodate up to 14 AWG copper
wire and feature mechanical relay outputs with either manual or auto reset. The
UL and CE approved GFS series of ground fault sensors start at $136.
The DCT series of dc current transducers combines a Hall Effect sensor and
signal conditioner into a single package for use in dc current applications up
to 400A. Designed to be compatible with most PLCs, data loggers and SCADA
systems, the DCT series features jumper-selectable current input ranges and
4-20 mA or +/- 10V dc outputs. Available in split-core or fixed-core models, DCT
current transducer prices start at $117.
DCS100 series dc current switches have jumper-selectable current input
ranges up to 100A and are available in normally-open solid-state and SPDT relay
output models. The switches are equipped with removable terminal blocks which
accept up to 12 AWG solid or stranded wire. Prices for DCS100 dc current switches
start at $90.
All acuAMP sensors are panel-mountable; DIN rail adaptor accessories are also
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
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.