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Probe specifications
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)
Cable: Please select a 50 m cable or a 100 m cable by usage
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
Parameter: ORP
Principle: Glass electrode
Measurement range: 0 to ±1,000 mV
Resolution: 0.1 mV
Accuracy: ―
Time constant: 10 s
