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SBE 3 Oceanographic Temperature Sensor
Intended primarily for use on the SBE 25 and 25plus CTD system, the SBE 3F can also be used as a component in custom oceanographic systems or for high-accuracy industrial and environmental temperature monitoring applications. The superior performance of the SBE 3F results from its optimized electronic design, superior calibration, and quality testing program. The SBE 3F has a time response of approximately 0.07 sec and an initial accuracy of 0.001 °C, and is typically stable to 0.002 °C/year.
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Key Features
- Glass-coated thermistor bead, pressure-protected in 0.8 mm diameter thin-walled stainless steel tube. Exponentially related to temperature, the thermistor resistance is the controlling element in an optimized Wien Bridge oscillator circuit. Resulting sensor frequency is inversely proportional to the square root of the thermistor resistance and ranges from approximately 2 to 6 kHz, corresponding to -5 to +35 °C. Built-in acquisition circuits and frequency outputs; allows for calibration as separate modules. Individually calibrated in Sea-Bird’s state-of-the-art calibration baths. Overall system accuracy limited only by the accuracy of the CTD’s master clock. A typically small clock error of 1 ppm affords a temperature error of less than 50 µ°C. 6800 m aluminum or 10,500 m titanium housing. Five-year limited warranty.
Parameters Measured
Specifications
| Specification | Value |
|---|---|
| Communication Options | Frequency |
| Depth Rating (Meters) | 3400m, 6800m, 10500m |
| Power Source | External |
| Housing Material Options | Aluminum, Titanium |
| Connector | MCBH |
| Sampling Rate | 70 msec |
| Power Consumption | 11-16 VDC, 25 mA |
| Accuracy | 0.001 °C |
| Resolution | 0.0003 °C @ 24 samples/sec |
Accessories
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