Posted on April 1, 2006 - ( views)
Electronic Pressure Controllers are precision electronic devices that maintain a pneumatic process pressure at a preset level using closed-loop control. These devices can be configured to control pressure, vacuum or flow and replace mechanical control systems or mass flow controllers. The required pressure or vacuum values are adjusted via an electrical set point to the EPC. The system continually measures actual process value,s compares it with the desired set point and compensates for any variations. Output signals are available for improved process monitoring. To control gas flow, EPCs are connected to an application-specific measuring orifice. By controlling the pressure in front of theorifice, the proportional flow can then be adjusted. EPCs can regulate liquid flows such as in precision dispense applications. Typical applications for these electronic pressure controllers feature carrier gas flow control, microfluidic flow control, vacuum pump control, gas-over-liquid flow control, hydro-dynamic focusing and aspirate/dispense applications.
Feature 24 Bit resolution
Pressure ranges from 25 Pa
Offers high media compatibility
Offer I²C and analog outputs
offer high accuracy measurements
enable low pressure measurement
for battery powered applications
feature high chemical resistance
high input resistance
With the April issue, we celebrate the 40th anniversary of IEN Europe. For that occasion we present numerous interesting articles and interviews on technologies that have been groundbreaking over the past decades. An interview with Nexans is on the Evolution of Cables . A technical article by the EMVA on Machine Vision emphasizes the milestones that have been important for the automation industry. A very recent and up-to-date topic, Industry 4.0, is discussed in an Interview with Wibu Systems, a company dedicated to the protection of know-how. IEN Europe April also features a retrospective on Low-voltage Switchgear by Eaton. To celebrate IEN’s 40th anniversary properly, we have a Reader Offer for you, where you can win a high-tech visual IR thermometer. So please celebrate with us and enjoy!
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