Specifications
| Parameter Specification | Range | Resolution | Accuracy | Method |
|---|---|---|---|---|
| Conductivity | 0 to 100,000 µS/cm | 1 µS/cm | 0.25% ±5 µS/cm | Measured |
| Density* | 990 to 1035 kg/m3 | 0.04 kg.m3 | ± 0.02 kg/m3 | EOS80** |
| Depth | 0 to 100 m | 0.01 m | ±0.25% FS | EOS80** |
| GPS | - | - | 10m | - |
| Pressure | 0 to 100 dBar | 0.01 dBar | 0.25% of FS | Measured |
| Salinity | Up to 42 | 0.01 | ±0.1 | PSS-78† |
| Sound Speed | 1400 –1730 m/s | 0.01 m/s | ±0.15 m/s | Chen-Millero‡ |
| Specific Conductivity§ | 0 to 250,000 µS/cm | 1 µS/cm | 0.25% ±5 µS/cm | EOS80** |
| Temperature | -5 to +45°C | 0.01°C | ±0.05°C | Measured |
| Specification | CastAway®-CTD |
|---|---|
| Communications | Internal BlueTooth Radio (Class 2); Up to 10m range |
| Dimensions — Diameter | 7.11 cm | 2.8 in |
| Dimensions — Height | 20.32 cm | 8.0 in |
| Dimensions — Weight | 0.45 kg | 1.0 lbs |
| Power | 2 Standard AA batteries for 40+ hours of operation |
| Recorder | 15 MB recorder; Good for 750+ casts during typical use |
| Sample Rate | 5Hz |
*Based on temperature resolution and accuracy.
**International Equation of State for sea water (EOS-80).
†1978 Practical Salinity Scale
‡ Chen-Millero, 1977. Speed-of-sound in sea water at high pressures.
§ Based on 100,000 µS/cm at -5°C.
Software & Firmware
CASTAWAY-CTD SOFTWARE — V 1.5 — 30JAN2012
The CastAway-CTD basic software was designed specifically for the CastAway-CTD system and is used to communicate with the instrument, download data, configure the instrument, upgrade the CastAway-CTD's firmware, in addition to offering a suite of data visualization, management and exporting capabilities.
CASTAWAY-CTD FIRMWARE — V 1.63 — 07JAN2022
The CastAway-CTD is a profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions and assures the data is of the utmost quality. This firmware is free to any CastAway-CTD owners/users and does not require any activation code. Please follow the instructions in the CastAway-CTD manual for details on how to check the version of your instrument's current firmware version and how to upgrade it if necessary.
