Condition Sensing, Solid-State Flow Switches 839E, Process Connection: 1/4 in. NPT (male), Probe Length [mm (in.)]: 30 (1.18), Display: Yes, Output: 4…20 mA + 1 PNP

Solid-State Flow Switches 839E • Flow rates from 0.03…3 m/s • Rugged, corrosion-resistant stainless steel housing, and sensing element • RTD sensor technology • Calorimetric measurement principle • Independently programmable dual N.O./N.C. PNP outputs or 4…20 mA analog output with single PNP output • Operation and visualization via PC using ReadWin 2000 software • Flow Sensors for the Harshest Environments • Allen-Bradley 839E solid-state flow sensors are used for process and industrial automation applications. • Rockwell Automation sensors can be found in food and beverage, pharmaceuticals, water and waste water plants, and hydraulic applications. • These sensors are capable of measuring the liquid flow rate from 0.03 m/s to 3 m/s. • The flow rate is displayed as a percentage of flow rate. For example at no flow the display will read 0%. • The sensor probe is designed using 316L stainless steel probe and is resistant to aggressive media and capable of withstanding corrosive liquids. • Allen-Bradley flow switches are based on the calorimetric principle. • The 839E sensors incorporate a heated temperature element; as media flows passed the sensor heat is removed due to convection. • The amount of heat transfer is dependent on the flow velocity of the medium and the temperature difference between the sensor and the medium.