上海精导科学仪器有限公司
上海精导科学仪器有限公司
上海精导科学仪器有限公司
Valeport公司fastCTD Profiler温盐深剖面仪
Valeport公司fastCTD Profiler温盐深剖面仪

An evolution of the miniCTD, the fastCTD Profiler is designed to deliver the highest quality CTD casts at fast drop rates. A conductivity cell designed for optimum flow-through, a fast-response thermistor temperature sensor and a 0.01% pressure sensor synchronously sampling at up to 32Hz deliver the highest quality profiles in a lightweight and robust package.

Add in an integral Fluorometer based on Valeport's new Hyperion range, an optional Bluetooth communications module and the fastCTD Profiler offers a unique and versatile solution.


Sensors

Conductivity

Range: 0 – 80 mS/cm

Resolution: 0.001mS/cm

Accuracy: ±0.01mS/cm

Response: 30 milliseconds


Temperature

Range: -5°C to +35°C

Resolution: 0.001°C

Accuracy: ±0.01°C

Response: 50 milliseconds


Pressure

Range: 50, 100, 200, 300 or 600 Bar

Resolution: 0.001% full scale

Accuracy: ±0.01% full scale

Response: 1 millisecond


Fluorometer (Optional)

Chlorophyll a  

Excitation: 470nm

Detection: 696nm

Dynamic Range: 0-800 μg/l

Detection limit: 0.025 μg/l

Linearity: 0.99 R2

Response Time:Dependent on operational mode


Fluorescein

Excitation: 470nm

Detection: 545nm

Dynamic Range:0-500 ppb

Detection limit:<0.01ppb

Linearity: 0.99 R2

Response Time:Dependent on operational mode


Rhodamine

Excitation: 520nm

Detection: 650nm

Dynamic Range:0-1000 ppb

Detection limit:<0.01ppb

Linearity: 0.99 R2

Response Time:Dependent on operational mode


Electrical

Internal: 1x D cell - 1.5V Alkaline or 3.6V Lithium

External: if fitted with a connector 9 – 28V DC isolated

Power: <250mW

Connector: SubConn MCBH10F (if fitted)


Sampling Modes

Continuous: Regular and synchronous data collection from all sensors up to 32Hz

Profile: Data is logged as the instrument descends (or rises), by a user defined pressure difference, through the water column.

Rapid: Once the instrument is set to run mode no data is logged until a programmed trigger depth is reached (for example, 2 metres below the surface). Completely programmable, the device can be set to record down cast data only, for example, when the probe stops descending and rises by a defined amount logging is stopped.


Communications

The instrument is designed to operate autonomously, with setup and data extraction performed over a Bluetooth connection with a PC before and after deployment.

Multiple profiles can be recorded in the instrument by switching it on then off with the magnetic switch key. Bluetooth auto-pairing and discovery make connecting to the instrument simple and robust.

The instrument can also operate in real time or cabled comms. Supplied with a traditional SubConn connector with a choice of communication protocols fitted as standard and selected by pin choice on the output connector:

Direct Reading

RS232: Up to 200m of cable

RS485: Up to 1000m of cable

Baud Rate: 38400 to 460800.

Protocol: 8 data bits, 1 stop bit, no parity, no flow control


Memory

Solid state non-volatile Flash memory

Capacity: > 10 million lines of data (equivalent to 5,000 profiles to 1,000m with a 1m profile resolution)


Physical

Materials: Acetal or Titanium housing, Polyurethane and ceramic sensor components

Depth Rating: 500m (Acetal) / 6000m (Titanium)

Instrument Size: φ54mm x 510mm

Weight in air: Titanium: 2.5 kg | Acetal: 1.5 kg | Cage: 2.5 kg

Weight in water: Titanium: 1.5 kg | Acetal: 0.5 kg


Software

Supplied with DataLog x2 Windows based software, for instrument setup, control, data extraction and display.