Ultrasonic Flow Meters at the Highest Level – Flowmax 54i


Flowmax 54i is a flow meter that calculates the volumetric flow of liquids. MIB GmbH - Ultraschall-Durchflussmessgerät Flowmax 54i is based on ultrasonic technology. This type flow meter can measure conductive and non-conductive liquids contactlessly. Flowmax is completely wear-free and it has no moving parts. The design of the pipe minimizes dead space over the entire geometry. The design of the pipe minimizes dead space over the entire geometry. All parts in contact with the environment are PE-HD. Thanks to its technical features, Flowmax can measure all types of liquids, such as DI-Water, Body care liquids, Cosmetics, liquid food as well as aggressive or toxic acids and alkalis. Flomax is characterized by high measurement accuracy and repeatability. It has integrated empty pipe detection. Optionally, Flowmax has a PID controller function. The calculated flow is delivered with a response rate of a few milliseconds on the outputs. Flowmax has a preset quantity counter by default. The starting signal can optionally be fed externally. A control signal to activate the pump or valve is also standard.

Flowmax 54i can be used with piston diaphragm and peristaltic pumps.

Technical Properties

  • Brand: MIB GMBH German
  • Model: Flowmax 54i
  • Nominal diameter: DN25, DN32, DN40, DN50
  • Internal Thread Connections: G1 ½, G2; G2 ¼, G2 ¾
  • Mechanical Connection: Thread G, Thread NPT, Clamp connection DIN 11864-3 BKS-Clamp Form A
  • Protection class: IP 65
  • Compressive Resistance: 10 Bar
  • Material: PE-HD (Polyethylene)
  • Power supply: 18 ... 30VDC
  • Power Input: 3.6W at 24VDC Power put
  • Connection Connector: 5 pin, 8 pin optional
  • Storage temperature: -15 .... +50 °C
  • Fluid Temperature: 0 .... +50 °C
  • Current output: 0/4 ... 20 mA,
  • Lower and upper limit can be adjusted,
  • Grounding Connected to supply ground
  • Error Signal according to NAMUR NE43 with 4Z20mA
  • Digital Output: Digital output Q1/2 via NPN and PNP-logic, max. 100mA
    Output voltage according to DIN 19240:
    ≤5V means LOW
    ≥12V means HIGH
    Short circuit protected
  • Frequency: 0...10kHz
  • Data Interface: Data interface for parameterization
  • Measurement deviation: ± 2% o.r. ± 0.3% f.s. (o.r. = of reading , f.s. = fullscale),
  • option ± 1% o.r. ± 0.3% f.s. Reference conditions (VDE/VDI 2642)
  • According to reference conditions (VDE / VDI 2642)
  • Measuring range: DN25: 5 – 180 l/min
  • DN32: 9 – 300 l/min
  • DN40: 18 – 480 l/min
  • DN50: 36 – 900 l/min
  • Repeatability: 0.5%
    Flowmax 54i measuring system meets general EMC rules
    Requirements according to CE, EN 61000-6-3, EN 61000-4-2, EN 61000-4-3, EN