Inc. announces the ST420, a loop-powered,
stainless-steel analog shaft tachometer. The ST420 requires no user
calibration, providing a dependable shaft speed monitoring solution right out
of the box. Only 18 mm in diameter, it reliably detects magnetic pulses from a
rotating shaft-mounted pulser disc or wrap. Then, the ST420 uses quartz
crystal-based digital processing to convert pulses to a smooth, continuous
4-20mA analog signal directly proportional to the pulse frequency. The result
is a plug-and-play solution that allows users to accurately and simply monitor
rotating shaft speed in industrial applications.
ST420 shaft tachometer has been tested by UL to the standards UL913 and CAN/CSA
C22.2 No 157-92 (Intrinsic Safety), assuring it provides an intrinsically safe
solution for Class I (Groups C & D) and Class II (Groups E, F & G)
environments, when used with an approved I.S. barrier. Its magnetic pulse
detector, signal processing capability and 2-wire loop-powered 4-20 mA
circuitry are combined into a stainless-steel M18x1 sensor housing. The ST420
resists harsh plant environments and is rated NEMA 4X/IP67.
both standard and custom measurement ranges, the ST420 facilitates precise
shaft speed monitoring in industries including:
A middle school team from Rochester, Mich., has again nabbed the grand prize in the annual international Future City Competition, which drew students from 37 regions of the United States, as well as from England and China.
The word “smart” is becoming the dumbest word around. It has been applied to almost every device and system in our homes. In addition to smartphones and smart meters, we now hear about smart clothing and smart shoes, smart lights, smart homes, smart buildings, and every trendy city today has its smart city project. Just because it has a computer inside and is connected to the Web, does not mean it is smart.
Are you being paid enough? Do you want a better job? According to a recent survey Manpower released just before Engineers Week, employers and engineers don't see eye-to-eye about the state of US engineers' skills and experience.
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.