Print version
Current manual (for older manuals,
click here)
Reference sheet
Configuration options & accessories
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SBE 63 sensor (titanium housing; plastic housing for 600 m also available) |
SBE 63 on Argo float CTD |
SUMMARY
DESCRIPTION
Due to the increasing demands of science, Sea-Bird developed an individually calibrated, high-accuracy, optical oxygen sensor to assist in critical hypoxia and ocean stoichiometric oxygen chemistry research. With this new sensor, a myriad of moored and float-based platforms can contribute significantly in these driving areas of importance. The SBE 63 sets the oxygen measurement standard for oceanographic research. Careful choices of materials and geometry are combined with superior electronics and calibration methodology to yield significant gains in performance.
Each SBE 63 is calibrated individually in a temperature-controlled bath. Bath temperatures are varied at each of 4 oxygen values, providing a comprehensive 24-point calibration. Two reference sensors in each bath are standardized against Winkler titrations. Response time tests are conducted on each sensor, using gas. Salinity and pressure impacts on sensor response are each checked at two separate points.
The SBE 63 is designed for use in the CTD's pumped flow path. Water does not freely flow through the plumbing between samples, allowing anti-foul concentration inside the system to maintain saturation and eliminating exposure of the sensor to light, maximizing bio-fouling protection. The elapsed time between the CTD and associated oxygen measurement is easily quantified, and corrected for in post-processing.
Sea-Bird's standard 5-year warranty backs the sensor’s integrity.
CONFIGURATION OPTIONS
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SENSOR CHARACTERIZATION
The SBE 63’s luminescence decay time decreases non-linearly with increasing oxygen concentration. Because the phase delay between excited and emitted signals is shifted as a function of the ambient oxygen concentration, the phase delay is detected instead of the decay time. The signal is characterized by a modified Stern-Volmer equation as follows:
O2 (ml/L) = [ { (a0 + a1T + a2V2 ) / (b0 + b1V) - 1 } / Ksv ] [ SCorr ] [ PCorr ]
where
O2 is oxygen
concentration (ml/L)
T is temperature output from SBE 63's thermistor in °C
V is raw measured phase delay in volts =
φr / 39.457071
φr is raw measured phase delay data in
µsec
WEIGHTS AND DIMENSIONS
| 600-m Plastic housing | 7000-m Titanium housing | |
| SBE 63 sensor (weight in air) | 245 g | 270 g |
| Optional sensor mount (weight in air) | 225 g | 225 g |
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SBE 63 sensor for integration with SBE 37 ODO MicroCAT or SBE 41 Argo float CTD
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SBE 63 sensor installed in sensor mount for use with RS-232 auxiliary sensor channel on CTD |
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ADDITIONAL INFORMATION / LINKS:
Documentation -- manual, photos, technical papers, application notes, etc.
Sales Information -- options, accessories, cables, mount kits, spares, etc.
Software -- components of Seasoft V2
Links to Other Instruments of Interest
Specifications are subject to change without notice.
