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9.1
Instrument specifications
Power
Current drain (at 12 VDC)
1
Communication (
)
Communication protocol
AD converter
Sampling interval
Pre-heat time
1
Note (
): UART (3.3 V logic) is available only for the standard type (ARO-FT).
Model name
Depth rating
Material
Connector
Weight
9.2
Sensor specifications
Parameter
Temperature
Principle
Thermistor
Measurement range
-3 ‒ 45 °C
Calibration range
0 ‒ 35 °C
Resolution
0.001 °C
Accuracy
±0.01 °C
Response time (63%)
< 1 s in water
2
Note (
): Calculated from air saturation at 25 °C and 34 PSU.
3
Note (
): Temperature calibration range: 3 ‒ 30 °C
4
Note (
): Accelerated degradation test.
5
Note (
): Pressure hysteresis is not considered.
6
Note (
): Typical value for immersing from air-saturated water with 25 °C to sodium sulfite solution.
9 Specifications
6 ‒ 26 VDC (12 VDC recommended)
Operation mode: < 30 mA, Sleep mode: < 0.1 mA
UART (3.3 V logic), voltage range: 3.3V ±5% (3.135 ‒ 3.465 V)
RS-232C
Baud rate: 38400 bps, No parity, Handshake
16 bit digital conversion
1 s
5 s
ARO-FT
2,000 m depth equivalent
Housing: Titanium (grade 2)
Insulation screw: POM
8-pin LEMO
In air: approx. 183 g (main unit)
In water: approx. 110 g (main unit)
Phosphorescence
Oxygen concentration: 0 ‒ 425 µmol L
Air saturation: 0 ‒ 200%
Oxygen concentration: 0 ‒ 255 µmol L
Air saturation: 0 ‒ 120%
-1
0.01 µmol L
Initial accuracy: ± 2% of measured value or ±2.0 µmol L
Sample-based drift: < ±5% of measured value or ±5.0 µmol L
Pressure effect: < ±2% of measured value or ±2.0 µmol L
Temperature effect: < ±2% of measured value or ±2.0 µmol L
6
< 1 s in water (
)
31
AROD-FT
6,700 m depth equivalent
Housing: Titanium (Ti-6Al-4V)
Impulse MCBH-8-MP
In air: approx. 265 g
In water: approx. 175 g
DO
-1
2
(
)
-1
2
(
)
-1
3
(
)
-1
/ 4,000,000 samples (
-1
5
(
)
-1
4
)
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