Fluidwell C401 Hydrogen Dispenser
Fluidwell C401 Hydrogen Dispenser

Fluidwell C401 Hydrogen Dispenser

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Fluidwell c401 hydrogen dispenser

The design of the C401 is a logical next step, based on our successful product lines for harsh surroundings and explosive atmospheres. The C-series is designed with a focus on high-quality and reliability for use in metrological / custody transfer applications. The C401 is a Hydrogen dispenser in conjunction with Coriolis mass flow meters.

Ruggedness and reliability is what Fluidwell stands for and it is now available in a comprehensive well designed and purpose driven Zone 2 flow computer, approved by PTB (Germany).


  • Robust aluminum field enclosure suitable for outdoor truck mounting.
  • Straight forward operation and automated control of the Coriolis mass flow meter.
  • All info at a glance, with the large backlit graphical LCD suitable for extreme outdoor use.


  • Metrology approved system by PTB, according to MID MI002 / OIML R137.
  • Zone 2 ATEX certification according to: EX II 3 G Ex ec IIC T4 Gc.
  • Displays current mass flow rate, deliverd total, time/date, status indication, engineering and time units.
  • Application driven design for truck dispense of Hydrogen (GH2+).
  • Dedicated communication port for Coriolis mass flow meter.
  • Communication port for data transfer to industrial Open Platform Communications (OPC).
  • Communication port for direct ticket printing.
  • Full integration and control of the Coriolis mass flow meter.
  • Extensive logging of process data, events and error handling.
  • Large graphical user interface with large digits.
  • Bright backlight for good readability during day and night.
  • Multiple languages supported.
  • Ambient temperature: -25°C to +55°C (-13°F to 133°F).
  • For further details, please contact us: +31 413 343786 or click here.


  • Hydrogen distribution on board of trucks or marine bunkering. For accurately register metrologically the dispensed amount of Hydrogen.
  • For loading and unloading Hydrogen trucks, trains and other carriers.
  • The (re)calibration of Hydrogen Refilling Station (HRS).


Signal Inputs

  • Flowmeter Inputs
    • Coriolis Mass Flowmeter Input:
      RS485: Modbus ASCII / RTU

Signal Outputs

  • Pulse outputs: None
  • Alarm outputs: None.
  • Analog outputs: None.
  • Control output: None


  • Power Supply
    • 16 – 27V DC.

Hazardous Area

  • Non-Sparking, Zone 2ATEX:
    Gas: II 3 G Ex ec IIC T4 Gc


  • Port 2:
    Function: All Metrologically relevant data.
    Protocol: FTL.
    Interface: RS232 / RS485 2-wire or 4-wire.
  • Port 3:
    Function: Metrologically Print receipt.
    Protocol: ASCII.
    Interface: RS232.

Download Datasheet: Fluidwell C401 Hydrogen Dispenser

For futher please contact us, sales@wmablog.com

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