Flow Switches
Our Bulletin 839E Flow Switches monitor and display liquid media flow rate from 0.03 to 3 m/sec (0.1 to 9.84 ft/sec). This sensor measures both flow and temperature and is available with two different probe insertion lengths.
Features
- 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 %
Condition Sensing Devices
Certifications
-
3 A authorized only with sanitary adaptor
-
CE Marked for all applicable directives
-
cULus Listed
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Product Certifications
Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.
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Product Certifications
Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.
Configuration & Selection Tools
- CrossWorks — Convert competitive catalog numbers to similar Allen-Bradley® products.
- ProposalWorks — Build complete quotes and proposals.
Other Resources
- Procurement Specifications — Visit our online resource to find the procurement specifications for this product.
- ReadWin Configurator for Windows 2000
- Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.
Applications
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 839E Solid-state Flow Switches are used in water treatment applications:
Essential Components Case Studies — View our case studies site to discover how customers have applied Allen-Bradley components in their applications.