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Current manual (coming soon) Reference sheet (coming
soon)
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 has 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 optical D.O. sensor 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
With the optional sensor mount, the SBE 63 can be plugged into the RS-232 auxiliary sensor connector of the 16plus V2, 16plus-IM V2, or 19plus V2 CTD; configuration choices include a 600-meter plastic or 7000-meter titanium housing, and an XSG or wet-pluggable MCBH connector. The SBE 63 with a 600-meter plastic or 7000-meter titanium housing can also be integrated into an SBE 37 MicroCAT (IMP-ODO, SMP-ODO, or SIP-ODO; datasheet coming soon). On an Argo float CTD, the SBE 63 has a 2000-meter titanium housing.
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SENSOR CHARACTERIZATION
The SBE 63’s luminescence decay time decreases non-linearly with increasing oxygen concentration. Because the phase angle between excited and emitted signals is shifted as a function of the ambient oxygen concentration, the phase shift is detected instead of the decay time. The signal is characterized by a modified Stern-Volmer equation as follows:
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O2 = [(φ0 / φc - 1) / Ksv] [SCorr] [PCorr] [tauCorr] φ0 = a0 + a1T + a2φr2φc = b0 + b1φrKsv = c0 + c1T + c2T2
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where φr is raw measured phase-shift data in degrees φ0 is phase shift in absence of O2 φc is calculated luminescence phase shift a0, a1, a2, b0, b1, c0, c1, c2, are calibration coefficients (Uchida et al, 2008) Ksv is Stern-Volmer constant (Demas et al, 1999) SCorr is salinity correction function PCorr is pressure correction function tauCorr is time constant correction function |
WEIGHTS AND DIMENSIONS
| 600-m Plastic housing | 2000-m Titanium housing | 7000-m Titanium housing | |
| SBE 63 sensor (weight in air) | 245 g | 235 g | 270 g |
| Optional sensor mount (weight in air) | 225 g | 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.
Links to Other Instruments of Interest
Specifications are subject to change without notice.
