Metal cone variable area flowmeter
VA Master FAM540

The VA Master FAM540 flowmeter can be utilized for measuring the flow of liquids, steam and gases, especially when aggressive or opaque fluids are to be metered.
It is ideal for the chemical, pharmaceutical and food and beverage industries.


Fieldbus & HART


The flowmeters are indispensable where high pressure and / or high temperature operating conditions exist. The stainless steel primaries as well as the PTFE liner primaries are proven in many applications even under hardest conditions.

  • Primary instrument designs
    – Type FAM541: Standard-line with flange connections
    – Type FAM544: Hygienic design
    – Type FAM545: With PTFE-liner for aggressive fluids (in Classic phase, please contact ABB for information about product availablity)
  • Easily adjustable for new operating conditions
  • Magnetic stick operation
    – Configurations also possible with closed housing 

All devices are available as analog indicator with or without alarms as well as electronic transmitter with 4 to 20 mA, HART communication and NAMUR contact outputs and optionally with a graphical display. They can be used in all hazardous areas.


General specifications:

  • Application
    – Clean liquids, gases and steams
  • Mounting
    – Vertically, in line
  • Connections
    – 1/2 to 4 in., flanged, hygienic (DIN, SMS), vertical
  • Flow ranges
    – Water flows: 0.028 to 120 m3/h
  • Flow turndown
    – Typically 10:1
  • Operating pressure 
    – Up to 100 bar (1450 lbf/in 2 g)
  • Operating temperature 
    – Up to 400 °C (752 °F) 
  • Accuracy 
    – Class 1.6 (Class 2.5: PTFE line tubed opt.)
  • Alarms
    – Slot sensors, up to 2 off
  • Tube material 
    – Stainless steel, optional PTFE lined
  • Float material 
    – Stainless steel, optional PTFE lined/float damping 


For selecting the most suitable product for your application  

Fieldbus & HART

ABB’s freedom of choice offers the right driver for the major fieldbus protocols suitable for ABB devices.
The version matrix document shows for each protocol the software revision that’s compatible to the hardware and firmware revision of the device.

Software and documentation:

Stand-alone tool:
ABB offers software tools that use the listed drivers above for your device configuration and monitoring requirements. Read more & download

Fieldbus solutions:
ABB offers a wide range of fieldbus products, accessories, tools, support documentation, applications and news. Read more


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