idronaut Ocean Seven 310 - Standard Sensor Specifications; Optional Sensor Specifications; Electronic Specifications

SECTION ONE – SYSTEM DESCRIPTION
IDRONAUT – Brugherio (MB) OCEAN SEVEN 310 CTD 01-2019
6
1.11 STANDARD SENSOR SPECIFICATIONS
The OS310 multiparameter CTD can be equipped with the following sensors to measure:
1.12 OPTIONAL SENSOR SPECIFICATIONS
Among others, the OCEAN SEVEN 310 CTD can be optionally equipped with the Highly Accurate
Precise (0.01%) Pressure Transducer, the optical IDRONAUT OEM SEAPOINT Turbidity and
Fluorometer sensors, the IDRONAUT OEM CHELSEA Single-Channel and Three-Channel
Fluorimeters.
1.13 ELECTRONIC SPECIFICATIONS
Real-time and logging: up to 28 Hz
Interfaces RS232C, RS485, TTL, Data telemetry (QAM) up to 10Km; Wireless:
WiFi/Bluetooth
Real-time clock accuracy: 3 ppm/year
Power supply: Battery: 2.9..5.0 VDC; running: 90 mA @ 3.6VDC; standby 8 µA @3.6VDC
External power: 9..32 VDC; running: 67 mA @ 12VDC; standby 8 mA @12VDC
Data telemetry: Low voltage: 18..60 VDC; High voltage: 90..220 VDC
Parameter Range Accuracy Resolution Time Constant
Pressure 0..7000 dbar
(3)
0.05 % FS 0.0015 % FS 50 ms
Temperature -5..+50 °C 0.0015 °C 0.0001 °C 50 ms
Conductivity salt water 0..90 mS/cm 0.0015 mS/cm 0.0001 mS/cm 50 ms
(1)
fresh water 0..7000 µS/cm 5 µS/cm 0.1 µS/cm 50 ms
(1)
brine 0..350 mS/cm
(5)
0.010 mS/cm 0.0001 mS/cm 50 ms
Oxygen (polarographic) 0..50 ppm 0.1 ppm 0.01 ppm 3 s
2)
0..500 %sat. 1 %sat. 0.1 %sat. 3 s
2)
Oxygen (optical) 0..45 mg/l 0.1 mg/l 0.025 mg/l 5 s
0..250 %sat. ±0.2 %sat. 0.05 %sat. 5 s
pH 2..12 pH 0.01 pH 0.1 mpH 3 s
4)
Redox -1000..+1000 mV 1 mV 0.1 mV 3 s
(1) At 1 m/second flow rate. (2) From nitrogen to air. (3) Other standard pressure transducers: 10, 40, 100, 200, 500, 1000, 2000, 4000, 7000, 10000 dbar.
(4) Differential pH preamplifier, 10
13
 10
14
ohm input impedance. (5) Optional extended range, available upon request
The fundamental properties of seawater like: Salinity, Sound Speed, Water Density, Oxygen ppm are obtained using the algorithms described in the
UNESCO “Technical papers in marine science no. 44”. The fresh water properties like: TDS (Total Dissolved Solids), Fresh Water Conductivity
corrected at 20°C and 25°C are automatically calculated.
Parameter Range Accuracy Resolution Time Constant
Pressure (highly accurate) 0..7000 dbar
(1)
0.01 % FS 0.002 % FS 50 ms
Turbidity meter 0..>2500 FTU 0.1 FTU 0.025 FTU 3s
(2)
Fluorometer 0..150 µg/l 0.02 µg/l 0.01 µg/l 3s
(2)
PAR 0..10 µA 0.05 µA 0.01 µA
UNILUX (single-channel) 0..100 µg/l
(3)
TRILUX (three-channel) 0..100µg/l
(3)
CYCLOPS fluorometers 0..100 µg/l
(3)
ECO fluorometers 0..100 µg/l
(3)
Water sampling system General Oceanics 1018 Rosette, IDRONAUT MISS miniaturized 6 Bottle water sampling system
(1) Other standard pressure transducers: 100, 1000,2000, 4000, 7000 dbar. (2) Provided with auto-range ,25,125,500, >2500 FTU; 5,15,50,150 µg/l.
(3) Chlorophyll a, Phycocyanin, Phycoerythrin for algae monitoring; Rhodamine WT or Fluorescein for dye tracing applications;
Nephelometer for turbidity monitoring.