Flowgas® TMS 500

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Consumption sensor for compressed air and gases Screw-on pipe diameters up to DN300

  • Simple pressurized installation possible
  • High accuracy
  • Negligible small pressure drop


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The affordable consumption counter Flowgas TMS 500 works according to the proven calorimetric measuring principle. A heated sensor is cooled by the gas flowing around him. The flow-dependent cooling is utilized as a measuring scale while the degree of cooling is directly dependent on the passing air or gas mass. An additional pressure and temperature compensation is therefore not necessary.

For larger pipe diameters from DN 50 to DN 300 the consumption sensors TMS 500 are available. In addition to pressure air, other gases can be measured e.g. Nitrogen, oxygen, CO2.

The installation of the Flowgas TMS 500 via a standard G 1/2 “ball valve under pressure. The retaining ring prevents the probe is thrown out uncontrollably during installation and removal by the operating pressure. For installation in different pipe diameters the TMS 500 can be associated with different probe lengths. The exact positioning of the sensor in the center of the pipe is possible via an engraved depth scale.

Gase_Durchfluss_en Kein_Abgleich Montage_einfach robust Kompakt Gase_Durchfluss_en
Measurement types m³/h, l/min (1000mbar, 20°C) for compressed air
Nm³/h, Nl/min (1013mbar, 0°C) for gases
Measurement principle Calorimetric measurement
Sensor Thermal mass flow sensor
Measured medium air, gases
Operating temperature Housing: -30°C…+80°C
Probe tube: -30°C…+110°C
Operating pressure ≤ 50bar
Power supply 24V DC
Load < 500Ohm
Supply current max. 80mA bei 24V DC
Digital output RS 485 interface
Analog output 4…20mA für m³/h bzw. l/min
on request: scaling for cfm, m³/min, l/s, ft/min, m/s
Impulse output 1 impulse per m³ bzw. l
pulse output galvanically isolated
pulse value on display adjustable
Accuracy ± 1,5% v.M.
± 0,3% v.E.
Mounting threads G½”
Material Housing: polycarbonate
Sensor tube: stainless steel 1.4301 / 1.4404
Installation length 220mm
Diameter 10mm

Documentation german

User manual

Documentation english

User manual

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