E+H Flowphant T DTT31 Flow switch

The switch is designed for the safe measurement, display, and monitoring of relative mass flow rates of liquid media with practically no pressure loss. It can be selected between one or two switch outputs as well as one switch output and one standardized analog output for flow rates or temperature values. Typical applications are Monitoring cooling water circulation processes or lubrication systems of pumps and heat exchangers or leak monitoring in process lines.

● Practically no pressure loss
● Configuration software FieldCare for quick configuration and reliable storage of device settings
● Optional: 4 to 20 mA analog output to read out the flow rate as percentage value
● Optional: second switch output or 4 to 20 mA analog output for temperature monitoring
● Function check and process information onsite thanks to digital display at device
● Top housing section which can be rotated 310° and rotatable display make it possible to read the measured values in all orientations
● Marine approval


Flow switch for monitoring and displaying relative mass flow rates of liquid media in the range from 0.03 to 3 m/s (0.1 to 9.84 ft/s). Flowphant T DTT31 − with thread connections or coupling.

Application examples:
● Monitoring cooling water circulation systems of pumps, turbines, compressors and heat exchangers
● Leak monitoring in process lines
● Monitoring pump functionality
● Monitoring lubrication systems
● Filter monitoring in the beverage industry

  • Measuring principle


  • Product headline

    Flow switch for liquid applications, intelligent / programmable; insertion style

  • Nominal diameter range

    DN 25…1000

  • Max. measurement error

    2% – 10% (per measurement range)

  • Max. process pressure

    120 bar (1.740 psi)

  • Medium temperature range

    CIP-able to 130°C / 266°F

  • Degree of protection


  • Display/Operation


  • Outputs

    1 x PNP switchable output + 1 x 4…20 mA analog output

Datasheet: Flowphant T DTT31, DTT35 Technical Information

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