JFE AAQ176 Water quality profiler with fast optical DO sensor

Communication method: RS-485

A/D conversion: 16 bit digital conversion

Dimensions: Φ108 x 293 mm

Weight: Approx. 2.4 kg in air. 1.1 kg in water

Housing material: Titanium (grade 2)

Parameter: Depth

Principle: Semiconductor pressure sensor

Measurement range: 0 to 100 m

Resolution: 0.002 m

Accuracy: ±0.3% FS

Time constant: 0.2 s

Parameter: Temperature

Principle: Thermistor

Measurement -3 to 45 °C

Resolution: 0.001 °C

Accuracy: ±0.01 °C (0 to 35 °C)

Time constant: 0.2 s

Parameter: Electrode

Principle: 0.5 to 70 mS cm^-1

Measurement range: 0.5 to 70 mS cm^-1

Resolution: 0.001 mS cm^-1

Accuracy: ±0.01 mS cm^-1

Time constant: 0.2 s

Parameter: Salinity

Principle: Practical salinity

Measurement range: 2 to 42

Resolution: 0.001

Accuracy: ―

Time constant: 0.2 s

Parameter: Turbidity

Principle: Backscattering

Measurement range: 0 to 1.000 FTU (Formazin reference)

Resolution: 0.03 FTU

Accuracy: ±0.3 FTU or ±2%

Time constant: 0.2 s

Parameter: Chlorophyll

Principle: Fluorimeter

Measurement range: 0 to 400 ppb (Uranin reference)

Resolution: 0.01 ppb

Accuracy: ±1% FS

Time constant: 0.2 s

Parameter: DO

Principle: Phosphorescence

Measurement range: 0 to 200% (0 to 20 mg L^-1)

Resolution: 0.001 to 0.004 mg L^-1(0.01 to 0.04%)

Accuracy: ±2% FS (±0.4 mg L^-1)

Time constant: 0.4 s

Parameter: Quantum

Principle: Photodiode

Measurement range: 0 to 5.000 μmol m^-2 s^-1

Resolution: 0.1 μmol m-2 s-1

Accuracy: 4% FS

Time constant: 0.2 s

Parameter: pH

Principle: Glass electrode

Measurement range: 0 to 14 pH

Resolution: 0.01 pH

Accuracy: ±0.2 pH

Time constant: 10 s

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