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Allen-Bradley Hardware Product

Flow Switches

  • 839e flow switch angled left
839e flow switch angled left

Our Bulletin 839E Flow Switches monitor and display liquid media flow rate from 0.03…3 m/sec (0.1…9.84 ft/sec). This sensor measures both flow and temperature and is available with two different probe insertion lengths.

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839E Solid-State
  • Overview
  • Product Selection
  • Documentation
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Overview

  • Rugged, corrosion-resistant 316L stainless steel housing with IP66 enclosure rating
  • Flow rates of liquid media (calorimetric measuring principle) range from 0.03...3 m/sec (0.1...9.84 ft/sec)
  • Four digit 14-segment digital display
  • Dual NO/NC programmable PNP outputs or 4...20 mA analog outputs with single PNP output
  • IP67 enclosure rating to withstand harsh industrial conditions
  • 316L stainless steel probe
  • Selectable units of measurement °C, °F, or %

Allen-Bradley solid-state sensing devices are designed to produce high-quality results in a variety of rugged environments. The flexibility of switch configuration and mounting options make the 839E suitable for a wide range of applications including:

  • Harsh Chemical Wash-Down — 316L stainless steel construction, laser-etched markings and IP66 rating for food, beverage, and other applications requiring equipment wash-down.
  • Water/Wastewater — Monitor cooling water circulation systems of pumps, turbines, compressors and heat exchangers.
  • Pump Protection — Monitor pump functionality and lubrication systems, leak monitoring in process lines. Monitor coolant flow.
  • Beverage — Filter monitoring and flow/no-flow in process lines.
  • Discrete Batch — Monitor process flows.
  • OEM Machine Builders / Large End Users — Programming with ReadWin2000 configuration kit reduces switch setup time.

See how the 840E Solid-state Level Switches are used in water treatment applications.

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Documentation

Resource Publication Number Language
Condition Sensors Brochure 836E-BR001
 
Looking for Technical Documentation?

Visit the Technical Documentation Center to find product specifications, installation guides, user manuals, product certifications and more.

View 839 Flow Switches Technical Publications and Certifications

Certifications

UL Listed Component Mark Canadian and United States RequirementsUL Listed Component Mark Canadian and United States Requirements
UK Conformity Assessed UK Conformity Assessed
  • 3 A authorized only with sanitary adaptor
  • CE Marked for all applicable directives
  • cULus Listed
  • UKCA Marked for all applicable regulations

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details. 


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