Pressure sensor for pneumatics

Pressure Measurement & Control

January 2010 Pressure Measurement & Control

ifm electronic’s latest pressure switch, the PN78, now has additional features that make it ideal for pneumatic applications. For accuracy, the PN78 uses a piezoresistive silicon measuring cell with less than 0,5% switch point error giving a repeatability of better than 0,1%.

For cost saving, the special design of the sensor allows differential pressure measurements to be made without having to connect a second pressure pick-up. The measuring range is -1 to 10 bar (PN7834) or -1 to 1 bar (PN7809). The measuring cell can withstand an overload pressure of up to 20 and a burst pressure of 30 bar.

The new process connection with G 1/8 threads and numerous fixing holes allows the PN78 to meet common pneumatic standards. The process connection and optional adapters enable multiple fixing options.

Two outputs can be programmed by the user as two x NC/NO or one x NC/NO and one x diagnostic output. In addition to the 4-digit alphanumeric display, five LEDs indicate the switching and operating status.

PN78 pressure switches have a high IP67 protection rating and use the industrial standard M12 connector, for which ifm electronic manufactures and supplies the EVC range of cables.

For more information contact Chris Cronjé, ifm electronic SA, 086 143 6772, [email protected], www.ifm.com/za

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Pressure Measurement & Control

Pressure sensor for pneumatics

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