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This is a product of KROHNE Marshall.

OPTISONIC 7300 Biogas

The OPTISONIC 7300 Biogas is an ultrasonic flowmeter for low pressure biogas, landfill and sewage gas applications. The flowmeter is ideally suited to measure biogas with a high CO2 content as well as small amounts of other media like H2S, nitrogen, hydrocarbons or condensation water. Its corrosion resistant titanium transducers provide a strong ultrasonic signal into the gas. The signal processing of the meter allows a better detection of small, strongly dampened acoustic signals.

The OPTISONIC 7300 Biogas features an integrated temperature sensor and optional pressure sensor that enables a temperature and pressure compensated standard volume calculation. The biogas meter also allows accurate online measurement of methane content in biogas and sewage gas (just ±2% error of measured value). This saves on costs as additional analytical systems for methane measurement are not needed. The biogas meter provides a wide measuring range (turndown ratio: 100:1). The OPTISONIC 7300 Biogas comes with ATEX approval (zone 1) and digital communication options.

Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.

  • Bi-directional flow measurement over a wide dynamic range
  • Integrated temperature measurement
  • Integrated calculation of standard volume with optional integrated pressure sensor
  • Insensitive to corrosive components in the gas (e.g. H2S)
  • High accuracy: ±1% error of measured value (±2% of methane content)
  • With lap joint flanges for lower overall weight
  • Full bore design: No moving parts, no wear, no pressure loss
  • No periodical maintenance needed
  • Available as remote version with field converter
  • Also for use in hazardous areas zone 1
  • Easy measurement of raw/wet biogas directly from fermentation, dry biogas, landfill gas, methane content
  • No maintenance
  • No recalibration
  • No moving parts, no pressure loss

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