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SBE 38 Digital Oceanographic Thermometer
Sophisticated A/D acquisition electronics, ultra-stable thermistor, and state-of-the-art calibration provide the standards-level performance of an expensive AC bridge and platinum thermometer at a small fraction of the cost. The SBE 38 is unaffected by shock and vibration, has high accuracy and stability, and is easy to use. It has a rugged, corrosion-proof, 10,500 m titanium housing. Real-time temperature data is transmitted via the RS-232 or RS-485 serial interface in ASCII characters (°C or raw counts). The SBE 38 must be externally powered, and its data logged or telemetered by a computer, data logger, or instrument. Applications include calibration baths, oceanographic/aquatic research, and environmental monitoring. The SBE 38 is frequently integrated as a remote temperature sensor with an SBE 21 Thermosalinograph or SBE 45 MicroTSG, to provide accurate sea surface temperature. It can also be integrated as a secondary temperature sensor with an SBE 16plus, 16plus-IM, 16plus V2, 16plus-IM V2, 19plus V2, or 25plus CTD.
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Key Features
- Programmable sampling: - Continuous (begins when power applied or on command); interval between samples (sec) = (0.133 * NAvg) + 0.339 where NAvg is number of acquisition cycles/sample - Polled
- Serial output: - RS-232 (full duplex) with one SBE 38 connected to the interface; - RS-485 (half duplex) with one SBE 38 connected to the interface; or - RS-485 (half duplex) with several RS-485 sensors sharing one pair of wires (cannot sample continuously)
- No batteries or memory.
- Compatible with Sea-Bird thermosalinographs and some Sea-Bird CTDs
- Titanium housing; depths to 10,500 m
- Seasoft© V2 Windows software package (instrument setup and data display)
- Five-year limited warranty
Parameters Measured
Specifications
| Specification | Value |
|---|---|
| Communication Options | RS-232 , RS-485 |
| Depth Rating (Meters) | 10500m |
| Power Source | External |
| Housing Material Options | Titanium |
| Connector | MCBH |
| Sampling Rate | 500 msec |
| Power Consumption | 8-15 VDC at 15 mA average for RS-232 output; 8-15 VDC at 10 mA average for RS-485 output |
| Accuracy | ± 0.001 °C (1 mK) |
| Software | Seasoft© V2 |
| Resolution | 0.00025 °C (0.25 mK) |
| Biofouling Protection | No |
Accessories
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