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Measurement principle:
DO: Phosphorescence
Temperature: Thermistor
Range:
DO Concentration: 0 to 425 μmol L^-1. Air saturation: 0 to 200% (calibration range: 0 to 120%)
Temperature: -3 to 45 °C (calibration range: 0 to 35 °C)
Resolution:
DO: 0.01 μmol L^-1
Temperature: 0.001 °C
Initial accuracy:
DO: ±2% of measured value or ±2.0 μmol L^-1 (calibraƟon range: 3 to 30 °C)
Temperature: ±0.01 °C
Repeatability
DO
Sample-based drift: ±5% of measured value or ±5.0 μmol L^-1 / 4.000.000 samples
Pressure effect: ±2% of measured value or ±2.0 μmol L^-1
Temperature effect: ±2% of measured value or ±2.0 μmol L^-1
Response time (63%) (at 25 °C. typical)
DO < 1 s (in water)
Temperature < 1 s (in water)
Representative output parameters: DO in μmol L-1. Temperature in °C. Engineering values of DO and temperature. Number of LED emission times. etc.
Sampling interval: 1s (shorter interval at request)
Pre-heat time: 5s (shorter time at request)
Communication: RS-232C or UART (3.3 V logic)
Communication protocol: Baud rate: 38400 bps. No parity. Handshake
AD Converter: 16 bit digital conversion
Power: 6 to 26 VDC. 12 VDC recommended
Current drain (at 12 VDC. typical): Operation mode: < 30 mA. Sleep mode: < 0.1 mA
Material: Housing: Titanium (grade 2). Insulating attachment: POM
Connector: 8-pin LEMO
Dimensions:
Weight: In air: approx. 183 g (without attachment or cable)
In water: approx. 110 g (without attachment or cable)
Depth rating: 2000 m depth equivalent