Oxygen Optode 3975/4175

Oxygen Optode 3975/4175Click to zoom

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Observatory reference: DELOS A, DELOS B

The AADI Oxygen optode was the first and only to measure dissolved oxygen for years without drift - now it is one of the fastest!

The Oxygen optode is designed to measure absolute oxygen concentration and % saturation. The optode can be used from streams to deep sea, from fish farms to waste water and from polar ice areas to hydrothermal vents. The lifetime-based luminescence quenching principle offers the following benefits:

Response time <8 sec (63%)
High accuracy
Not stirring sensitive (it consumes no oxygen)
Lower fouling sensitivity
Measures absolute oxygen concentrations without repeated calibrations
Better long-term stability
Hot water monitoring
Less affected by pressure
Not sensitive to H2S
Not freezing sensitive

Manufacturer

Aanderaa Data Instruments Inc.
Aanderaa Data Instruments Inc.

P.O.Box 34 Slåtthaug
N-5851 Bergen
Norway

+47 55 60 48 00

+47 55 60 48 01

http://www.aadi.no

Technical specifications

Depth rating0 - 300 m
Max. pressure3975: 300 m; 4175: shallow water
Housing materialTitanium, Sapphire, POM
Power supplyAnalog: 7 to 14Vdc; RS-232: 5 to 14Vdc
Power consumption80mA/S +0.3mA +Ia where S(sec) and Ia(quiescent: 5 - 45mA when analog adapter enabled)
Weight420 g
SizeØ40 x 184mm
Accuracy±0.1 °C
Response time<10s (63%)
Resolution0.01 °C

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