Star-Oddi DST centi-TD Temperature and Depth Recorder
Description
The Data Storage Tag (DST) centi-TD is a miniature underwater data logger with temperature and pressure (depth) sensors. Recorded data are stored in the logger's internal memory with a real-time clock reference for each measurement. This sensor is also available with pitch and roll sensors.
The DST pitch and roll is a miniature submersible data logger that measures and records temperature, pressure (depth) and relative pitch and roll (tilt angle) movements of the DST, with reference to the earth gravity. DST pitch and roll measures gravity movements in two directions. Recorded data is stored in the loggers internal memory with a real-time clock reference for each measurement.
The sensors are housed in a strong waterproof cylinder made of alumina (an implantable biocompatible ceramic).
Specifications
| Instrument Type | Star-Oddi DST centi-TD Temperature and Depth Recorder | Star-Oddi DST centi-TD Temperature and Depth Recorder with Roll and Pitch | |
|---|---|---|---|
| Memory * | 174,000 measurements in total; 261,819 bytes / temperature 1.5 bytes, pressure 1.5 bytes | 87,000 measurements per sensor (if all recorded simultaneously); 523,704 bytes / temperature-pressure 3 bytes, pitch and roll 3 bytes | |
| Data Retention | 25 years | ||
| Temperature Data | Temperature resolution | 0.032 °C | |
| Temperature accuracy | ± 0.1 °C | ||
| Temperature range | - 2 °C to + 40 °C | - 1 °C to + 40 °C | |
| Temperature response time | Time constant (63%) reached in 20 sec. | ||
| Depth Data | Standard depth ranges | 0.1 m - 30 m, 0.1 m - 50 m, 0.1 m - 100 m, 1 m - 270 m, 5 m - 800 m, 5 m - 1500 m, 10 m - 2000 m, 10 m - 3000 m | |
| Depth resolution | 0.03% of selected range | ||
| Depth accuracy | +/-0.4% of selected range for 30 m to 270 m range, +/-0.6% of selected range for 800 m to 3000 m range | ||
| Depth response time | Immediate | ||
| Roll and pitch data | Tilt range | N/A | ± 80 ° (160 ° span) |
| Pitch roll accuracy | N/A | ± 5 ° | |
| Dimensions | 15 mm x 46 mm | ||
* Extended memory capacity of 523,800 measurements is available as a DST centi-ex model.
Further details are available in the manufacturer's centi-TD specification document and centi-TD with pitch and roll specification document .
