In-situ Marine Optics
  • IMG 2889

MS9

A nine wavelength multispectral light sensor designed for underwater applications, including photosynthesis studies.
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Features

  • Spectrally-resolved planar irradiance or radiance sensor
  • Integrated wiper, parking and copper componentry to minimise marine fouling
  • User-programmable sampling with ultra low power ‘sleep’ mode
  • Internal Real-Time-Clock and tilt sensor
  • RS-232 telemetry port
  • WiFi download
  • Internal calibration coefficient storage
  • Optional integrated pressure and temperature sensors

Specifications

OPTICAL
Detectors 9 x Si photodiodes
Wavelengths (nm) 410, 440, 490, 510, 550, 610, 660, 685, 710 (factory customisable)
Spectral response 10 nm Full-Width-Half-Maximum
Irradiance cosine response <3% (0 – 60°)
Radiance FOV 5° (in-air)
Calibration NIST traceable radiometric calibration
Range 0 – 400 µW cm-2 nm-1 (factory customisable)
Resolution (NEI) 2.5e-3 µW cm-2 nm-1
ELECTRICAL
Acquisition 9 independent 24 bit ADCs
Sampling Rate configurable up to 5 Hz
Protocol RS-232 (configurable baudrate)
WiFi Download yes
Input Voltage 7 – 24 VDC
Power Consumption 40 mA @ 12 VDC (250 mA during wipe), 60µA sleep
Connector Micro WET-CON MCBH6M
PHYSICAL
Length 148 mm (connector + 36 mm)
Diameter 67 mm
Weight 630 g in-air, 150 g in-water
Materials Acetal, Copper, PTFE, SS316, Quartz
Depth Rating 300 m
Operating Temperature -20 to +50 °C

Software

IMOview

IMOview is GUI program that allows users to easily configure and display real-time data via serial communication.

IMOview.exe for Microsoft Windows