Posted on March 22, 2012 - ( views)
The mechanical differential pressure switch S4540 from tecsis can switch a load depending on a pressure difference. The switch has a high overload safety. The overload pressure is 16 bar while the burst pressure is 25 bar. The switching point can be easily set with an adjusting knob between 10% and 100% of the full range, which vary from 0.6 bar up to 6 bar. The switch is available as NO or NC version. The typical hysteresis is 2%. Typical applications can be found in heating, air-conditioning, and ventilation systems, in filter and flow control, and building automation applications.
The electronic differential pressure switch S1510, which is as robust as the S4540. offers two relays or MOSFET outputs can switch the connected loads depending on the pressure difference. The measured pressure difference can be displayed on an integrated 3½" digit LED. In addition it provides an analogue output signal (0…10V or 0/4…20mA), which can be damped, spread, inverted or linearly transformed. The electronic differential pressure switch has a high accuracy of typical 0.8% of the adjustment range. The switching point and the output signal can be easily programmed with three keys at the front. The S1510 is utilized in applications, where in addition to the switching function, the pressure values have to be monitored.
PCN Europe’s March issue features an Industry Special covering issues concerning the Environment, we look at the role heat management plays in the world’s largest CO2 test facility, in another one we discover a zero liquid discharge treatment process for waste water. Our Product Focus on Measurement Technology includes among others an application story showing how predication and performance monitoring on a oil & gas platform enables onshore personnel to monitor essential equipment. In our technical article we look at ways to eliminate mechanical issues in differential pressure systems. At this time of the year we are looking forward to the trade show season, especially at Hannover Messe, the leading industrial trade show. This edition also presents you with many other application stories and product news from all areas of the processing industries, enhanced with datasheets and videos.