TriOS microFlu V2 Fluorometer

TriOS microFlu V2 is a compact submersible fluorometer for the measurement of chlorophyll a, phycocyanin in cyanobacteria, colored dissolved organic matter (CDOM) and fluorescent tracers. It is supplied in versions that differ in their LED excitation wavelength and optical filters, one version for each measured parameter. The housing measures only 48 mm in diameter and about 162 mm in length. Mikron Proses (Üsküdar, Istanbul), TriOS’s solution partner in Turkey, provides application consulting on sensor selection, commissioning and calibration.

Application consulting · Commissioning · Calibration → Send us your requirement

Parameters and power consumption

The microFlu V2 family is built as versions that are fitted at the factory for the target parameter:

• Algae and biomass: chlorophyll a for monitoring surface waters, and phycocyanin for cyanobacteria.
• Organic content: CDOM, and tryptophan for wastewater-related organic pollution.
• Tracers: rhodamine and fluorescein for fluorescent tracer measurements.

Internal reference signals of the LEDs used for fluorescence excitation compensate ageing effects and temperature influences. Power consumption is typically 0.6 W at most, and 70 mW at most in power-down mode.

Interfaces and construction

The sensor has an RS-485 Modbus RTU digital interface and a 4-20 mA analog output (optionally 0-5 V or 0-10 V), so measured values can be read out digitally or as an analog signal. The housing is made of 1.4571 / 1.4404 stainless steel or of titanium (3.7035), the SubConn connector version is rated for 30 bar, and protection is IP68 and NEMA 6P. For the chlorophyll measuring principle, see the chlorophyll-a sensor guide; for other TriOS fluorometers, see the TriOS enviroFlu-HC oil-in-water sensor and online analyzers.