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Proline Promass H 300
Coriolis flowmeter

The chemically resistant single-tube flowmeter with a compact, easily accessible transmitter

  • Coriolis flowmeter - Proline Promass H 300 ©Endress+Hauser
  • The Coriolis Flow Measuring Principle

The highly accurate Promass H is destined for applications requiring maximum corrosion resistance and guarantees optimal safety for chemically aggressive fluids. With its compact transmitter Promass H 300 offers high flexibility in terms of operation and system integration: access from one side, remote display and improved connectivity options. Heartbeat Technology ensures process safety at all times.


  • Maximum safety for chemically aggressive fluids – corrosion-resistant wetted parts

  • Fewer process measuring points – multivariable measurement (flow, density, temperature)

  • Space-saving installation – no in/outlet run needs

  • Full access to process and diagnostic information – numerous, freely combinable I/Os and fieldbuses

  • Reduced complexity and variety – freely configurable I/O functionality

  • Integrated verification – Heartbeat Technology

Field of application

  • Measuring principle operates independently of physical fluid properties such as viscosity or density

  • Highly accurate measurement of liquids and gases in applications requiring highest corrosion resistance.

Device properties

  • Measuring tube made of Tantalum, Zirconium

  • Nominal diameter: DN 8 to 50 (3/8 to 2")

  • Medium temperature up to +205 °C (+401 °F)

  • Compact dual-compartment housing with up to 3 I/Os

  • Backlit display with touch control and WLAN access

  • Remote display available

Features and specifications

Documents / Manuals / Software

Accessories / Spare parts

Predecessor / Successor

Predecessor: Promass 80H, Promass 83H

Success stories


Endress+Hauser Instruments International AG
ул. Абдуллиных 66 050010, Алматы Kazakhstan
Tel.: +7 727 345 06 60
Fax: +7 727 345 06 61

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