• Virtually insensitive to moisture or particulates
  • Low-pressure drop
  • Standard accuracy: ± 1.0% RD plus ± 0.5% FS (at calibration conditions)
  • Rangeability up to 1: 100
  • Rugged, weatherproof housing (IP65, dust and waterproof)
  • Analog or digital communication (RS232 or Fieldbus interface)


Direct Through-Flow Measurement

The digital MASS-STREAM™ series D-6300 works on the basis of direct through-flow measurement, following the constant temperature anemometer principle.

  • Lowest range 0,01…0,2 ln/min
  • Highest range 200…10000 ln/min


  • Process gas measurement in the food industry, chemical and petrochemical industries, in fermentation installations and in biotechnology
  • Sample gas measurement in environmental analysis
  • Gas consumption measurement for internal accounting
  • Methane production in anaerobic digesters
  • Burners
  • Surface treatment
  • Aeration/gas purging
  • Test benches

IP65 design with an optional multi-functional and multi-color display

The instruments have IP65 protection as a standard and are operated with a main-board with all functions for accurate flow measurement and control. They can be supplied with commonly used digital or analog input/output signals. Along with the standard RS232, CANopen®, DeviceNet™, PROFIBUS DP, PROFINET, Modbus RTU/ASCII or FLOW-BUS are available as an option.

One key element and innovative improvement is the optionally integrated, modern, multi-functional and multi-color display, fully IP65 compliant with operator buttons on the instrument. With its multiple functions, such as actual flow indication, totalization, and alarms, MASS-STREAM™ series D-6300 offers an excellent price-performance ratio. The instruments are suitable for application in laboratories, production machinery as well as industrial installations.