BGA-206A Blue Green Algae Sensor

A light source excites the target pigment in the water, and the detector measures fluorescence emitted at a longer wavelength. The optical response depends on pigment content, species, physiology and sample conditions; it is not a universal direct count of all cyanobacteria.

Choose the target and validate the estimate

• Confirm the supplied pigment channel and the organisms it is intended to track. A cyanobacterial pigment sensor is not a universal sensor for green algae, red algae or every marine microalgal species.
• Use the specified calibration procedure and suitable reference checks. Pair field fluorescence with representative laboratory cell enumeration or pigment analysis when establishing a quantitative relationship.
• Treat the listed Kcells/mL indication as a calibrated estimate. Kcells/mL means thousands of cells per millilitre: the listed 0.1 Kcells/mL corresponds to 100 cells/mL, but this display increment does not establish biological counting accuracy.
• Review turbidity, coloured dissolved substances, fouling, light conditions and changes in the population when the signal shifts. Set cleaning and verification intervals for the site.
• Use the reading for monitoring and follow-up sampling. Pigment fluorescence does not measure cyanotoxin concentration; toxin determination requires its own appropriate test.

For the listed RS485 Modbus RTU interface, obtain the actual register map, units and serial settings. The wire-colour key below is a reference for the listed configuration; verify the ordered connector, polarity and supply before connection.

Electrical connection

Red line—power cable(12~24VDC)
Black line—Ground wire(GND)
Blue line—485A
White line—485B
Bare wire— shield
After wiring is completed, it should be carefully checked to avoid damage to the sensor caused by incorrect wiring.

Cable specification:Considering that the cable is immersed in water (including sea water) for a long time or exposed to the air, the cable has a certain degree of corrosion resistance. The listed outer diameter of the cable is Φ6 mm. Confirm the cable, connector and assembled-joint ingress ratings and sealing requirements for the actual installation.