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Proline t-mass F 500 – Inline version with flange connection

Proline t-mass F 500
thermal mass flowmeter

Inline flowmeter with long-term stability as remote version with up to 4 I/Os

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  • Measuring principle


  • Product headline

    Inline flowmeter with long-term stability as remote version with up to 4 I/Os.
    Flexible, convenient programming based on 21 standard gases or freely definable gas mixtures thereof.
    Measurement of utility and process gases as well as gas mixtures in small line sizes.

  • Sensor features

    High level of process control – premium measurement accuracy and repeatability. Reliable monitoring – detection of process disturbances and reverse flow. Easy maintenance – removable sensor.
    Inline version with DN 15 to 100 (½ to 4"). Bidirectional measurement; high measuring performance. Patented drift-free sensor with SIL 2.

  • Transmitter features

    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.
    Remote version with up to 4 I/Os. Backlit display with touch control and WLAN access. Standard cable between sensor and transmitter.

  • Nominal diameter range

    DN 15 to DN 100 (1/2" to 4")

  • Wetted materials

    Measuring tubes
    • DN 15 to 50 (½ to 2"): stainless cast steel, CF3M/1.4408
    • DN 65 to 100 (2½ to 4"): stainless steel, 1.4404 (316/316L)
    Process connections
    Flange connections
    Stainless steel, 1.4404 (F316/F316L)
    Threaded connections
    Stainless steel, 1.4404 (316/316L)
    Sensing element
    • Stainless steel, 1.4404 (316/316L)
    • Alloy C22, 2.4602 (UNS N06022);
    Stainless steel, 1.4404 (316/316L)
    Reverse flow detection
    Stainless steel, 1.4404 (316/316L)

  • Measured variables

    Massflow, temperature, standard volume flow, volume flow, Free air delivery, velocity, heat flow, energy flow, density

  • Max. measurement error

    Gas: 1.0% o.r. (10 to 100% o.f.s.), 0.1% o.f.s. (1 to 10% o.f.s.)

  • Measuring range

    0.5 to 3750 kg/h (1.1 to 8250 lb/h)

  • Max. process pressure

    PN40 / Cl. 300 / 20K

  • Medium temperature range

    -40 °C to +180°C (-40 °F to +356 °F)

  • Ambient temperature range

    -40 to 60°C (-40 to 140°F)
    Transmitter: -50 to 60°C (-50 to 140°F),
    Sensor: -60 to 60°C (-60 to 140°F)

  • Transmitter housing material

    Aluminium, AlSi10Mg, coated

  • Degree of protection

    IP66/67, Type 4X enclosure Sensor: IP68, Type 6P (optional)

  • Display/Operation

    4-line backlit display with touch control (operation from outside)
    Configuration via local display and operating tools possible

  • Outputs

    4 outputs:
    4-20 mA HART (active/passive)
    4-20 mA (active/passive)
    Pulse/frequency/switch output (active/passive)
    Relay output

  • Inputs

    Status input
    4-20 mA input

  • Digital communication

    HART, Modbus RS485

  • Power supply

    DC 24V
    AC 100 to 240V

  • Hazardous area approvals


  • Product safety

    CE, C-tick

  • Functional safety

    Functional safety according to IEC 61508, applicable in safety-relevant applications in accordance with IEC 61511

  • Metrological approvals and certificates

    Calibration performed on accredited calibration facilities (acc. to ISO/IEC 17025)
    Heartbeat Technology complies with the requirements for measurement traceability according to ISO 9001:2015 – Section a

  • Pressure approvals and certificates

    PED, CRN

  • Material certificates

    3.1 material
    NACE MR0175/MR0103