max. depth 2,000m

The Sea & Sun Technology LED Fluorometer is an optical in situ instrument to measure chlorophyll A up to 2,000 m depth. The device emits light at a wavelength of 465 nm and detects the fluorescence-response of chlorophyll at 695 nm independent from ambient light. The fluorometer was designed for integration in SST Multi-Parameter Probes but can also be installed in any other measuring systems. It comes with an analogue output of 0.5-4.5 VDC, small housing, and low power consumption. The serial digital data is output in ASCII format (3.3 V). The sensor can switch between two ranges.

Technical data:

  • Pressure resistance: 2,000 dbar
  • Dimension / Weight: 25 mm diameter, 145 mm lenght, 140 g
  • Optical window: Glass
  • Material: Titanium
  • Temperature range: -2… 50°C in water
  • Supply Voltage Range: 7 – 24 VDC
  • Signal Output:
    0.5 – 4.5 VDC
    Analogue or digital
    Integrated calibration function for digital version
  • Integrated corrections:
    Ambient light suppression
    Automatic compensation of dropping LED intensity
  • Measuring ranges: 0-50 μg/L and 0-500 μg/L
  • Linear range / Linearity: 0-500 μg/L, 0.99 R2
  • Minimum detection limit: 0.03 μg/L
  • Used for: CTD48Mc, CTD75, CTD90, CTD90M, CTD115, CTD115M, MSS

>> Show data sheet here