SBE56 is a low-power, high-precision temperature recorder that uses internal batteries to record temperature and time data. It has a 0.5-second time constant pressure-protected thermistor that provides excellent accuracy and resolution, and can take rapid samples at a frequency of 2Hz. It has excellent stability; drift typically less than 0.002° / year. Equipped with 64 MB memory, high-precision real-time clock, and the depth of the pressure-proof plastic housing can reach 1500 meters. The user interface is a USB 2.0 interface, with easy-to-use Java communication software, which realizes data upload, data conversion and other functions, and is suitable for all computer operating systems.
The SBE56 is a low‑power, high‑precision temperature logger designed for underwater use. It operates on a single 3.6 V AA lithium battery and can record up to 7 million samples at 1‑second intervals, providing up to 84 days of continuous data collection. The unit includes 64 MB of internal memory, allowing storage of up to 15.9 million samples, and features a USB 2.0 port with Java‑based software for easy data upload and conversion on any operating system.
The instrument offers a measurement range of –5 °C to +45 °C with an accuracy of ±0.002 °C, a drift stability of less than 0.002 % per year, and a resolution of 0.0001 °C. It is housed in a pressure‑rated plastic case suitable for depths up to 1500 m, weighing 0.2 kg in air and 0.05 kg in water. Calibration follows NIST‑traceable 11‑point procedures, ensuring reliable long‑term performance. This manual is written in Chinese.
| Measurement range | -5 °C to +45 °C |
|---|---|
| Accuracy | ±0.002 °C |
| Drift stability | <0.002 %/year |
| Resolution | 0.0001 °C |
| Clock accuracy | 5 seconds/month |
| Power supply | 3.6 V AA lithium battery |
| Sample capacity (1‑s interval) | 7.2 million samples (≈84 days) |
| Maximum operating depth | 1500 m |
| Weight (air) | 0.2 kg (0.41 lb) |
| Weight (water) | 0.05 kg (0.1 lb) |
One battery can record about 7.2 million samples, which corresponds to roughly 84 days of continuous operation.
The SBE56 is rated for a maximum working depth of 1500 meters.
The instrument delivers a temperature accuracy of ±0.002 °C.