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A reliable and versatile pneumatic pressure controller

By Mary Page Bailey and Gerald Ondrey |

PMT Model 40 pneumatic pressure controllers (photo) are available in standard control modes of 100% proportional, 200% proportional, 200% proportional plus reset, 75% proportional (positioner only), or 300% PID (proportional-integral-derivative). These options make the controllers versatile enough to fit into almost any application. In addition to working as a pressure controller, the PMT Model 40 is also available as an indicating pneumatic transmitter. Mounted close to the measurement point, it transmits an air-pressure signal proportional to the measured variable to another indicator, recorder or controller. The Model 40 pressure controller is available in automatic and manual switch options and contains pre-calibrated elements for quick-field changes. — Ametek Sensors, Test & Calibration (STC), Horsham, Pa.

www.ametekstc.com

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