SBE 16plus SeaCAT C-T (P) Recorder - DISCONTINUED
For older SBE 16plus product manuals, organized by instrument firmware version, click here.
DeploymentEnduranceCalcV1.7.0-b88.exe for Windows XP/Vista/7 Seaterm_Win32_V1_59.exe for Windows XP/Vista/7 SeasaveV7.26.2-b13.exe for Windows XP/Vista/7 SBEDataProcessing_Win32_V7.26.2-b15.exe for Windows XP/Vista/7 How accurate is salinity measured by my CTD? What factors impact accuracy?
One of the reasons that this is not a simple question is that there are several factors to take into consideration regarding the error margin for practical salinity measurements. Salinity itself is a derived measurement from temperature, conductivity, and pressure, so any errors in these sensors can propagate to salinity. For example, Oour initial accuracy specification for the SBE 3plus temperature sensor and SBE 4 conductivity sensor on an SBE 9plus CTD is approximately equivalent to an initial salinity accuracy of 0.003 PSU (note that conductivity units of mS/cm are roughly equivalent in terms of magnitude to PSU).
However, another issue to consider is that this accuracy is defined for a clean, well-mixed calibration bath. In the ocean, some of the biggest factors that impact salinity accuracy are 1) sensor drift from biofouling or surface oils for conductivity in particular and 2) dynamic errors that can occur on moving platforms, particularly when conditions are rapidly changing, which will be true for all sensors that measure salinity. Sea-Bird provides recommendations, design features such as a pumped flow path, and data processing routines to align and improve data for the salinity calculation to account for thermal transients and hysteresis, and to match sensor response times. Depending on the environment and the steepness of the gradient, and after careful data processing, this may continue to have an impact on salinity on the order of 0.002 PSU or more, for example. For more details, see Application Note 82.
Lastly, note that salinity in PSU is calculated according to the Practical Salinity Scale (PSS-78), which is defined as valid for salinity ranges from 2 – 42 PSU.
Many cables, mount kits, and spare parts can be ordered online.
Cables
- 801225 To computer COM port (from XSG connector), 2.4 m, DN 32421
- 801374 To computer COM port (from Wet-pluggable connector), 2.4 m, DN 32715
- 17133 To SBE 5M, 5T, or 5P (RMG connectors), 1.12 m, DN 30565
- 171503 To SBE 5M, 5T, or 5P (Wet-pluggable connectors), 1.12 m, DN 32499
- 172447 To SBE 43 (RMG/AG connectors), 1.1 m, DN 32496
- 172448 To SBE 43 (Wet-pluggable connectors), 1.1 m, DN 32654
- 17088 To SBE 63 (RMG connectors), 1.1 m, DN 30567
- 171792 To SBE 63 (Wet-pluggable connectors), 1.1 m, DN 32810
- 171536 To Biospherical QSP-200PD (from 16plus AG connector), 1.5 m, DN 32536
- 171693 To Biospherical QSP-2200PD (from 16plus AG connector), 1.5 m, DN 32693
- 17610 To Biospherical QSP-200L or QSP-2300L (from AG connector), 2 m, DN 30701
- 17602 To Chelsea AquaTracka or AlphaTracka (from AG connector), 1.2 m, DN 31253
- 17361 To D&A OBS-3 (from AG connector), 0.76 m, DN 30954
- 172130 To D&A OBS-3+ (from AG connector), High & Low range, 1 m, DN 33080
- 172131 To D&A OBS-3+ (from Wet-pluggable connector), High & Low range, 1 m, DN 33081
- 172109 To D&A OBS-3+ (from AG connector), Low range (1X), 1 m, DN 33058
- 172111 To D&A OBS-3+ (from Wet-pluggable connector), Low range (1X), 1 m, DN 33060
- 172110 To D&A OBS-3+ (from AG connector), High range (4X), 1 m, DN 33059
- 172112 To D&A OBS-3+ (from Wet-pluggable connector), High range (4X), 1 m, DN 33061
- 171559 To Li-Cor LI-192SA/193-SA (from 16plus/16plus V2 AG connector), 1.5 m, DN 32562
- 171099 To Seapoint fluorometer or turbidity meter (1X) (from G connector), 1.1 m, DN 32073
- 171147 To Seapoint fluorometer or turbidity meter (3X/5X) (from AG connector), 1.1 m, DN 32101
- 172221 To Seapoint fluorometer or turbidity meter (10X/20X) (from AG connector), 1.1 m, DN 31933
- 171845 To Seapoint fluorometer or turbidity meter (30X/100X) (from AG connector), 1.1 m, DN 31924
- 171908 To Turner Cyclops-7 (1X) (from AG connector), 1.1 m, DN 32910
- 171907 To Turner Cyclops-7 (10X) (from AG connector), 1.1 m), DN 32909
- 171909 To Turner Cyclops-7 (100X) (from AG connector), 1.1 m, DN 32911
- 171418 To Turner SCUFA (from AG connector), 1.1 m, DN 32417
- 17876 To WET Labs C-Star or WETStar with old-style 4-pin connector (from AG connector), 1.1 m, DN 31725
- 171953 To WET Labs ECO-AFL, ECO-FL, C-Star, or WETStar with new-style 6-pin connector (from AG connector), 1.1 m, DN 32491
- 172437 To WET Labs ECO-AFL, ECO-FL, C-Star, or WETStar with new-style 6-pin connector (from Wet-pluggable connector), 1.1 m, DN 32853
- 171869 To WET Labs ECO-FL-NTUS or ECO-FL-NTU(RT) (from AG connector), 1.1 m, DN 32812
- 172285 To WET Labs ECO-FL-NTUS or ECO-FL-NTU(RT) (from Wet-pluggable connector), 1.1 m, DN 32846
Mount Kits
SeaCATplus Cage
- 801269 SBE 16plus/16plus V2/19plus/19plus V2 to PN 801269 Cage (document 67171 and drawing 22009)
- 801270 SBE 16plus/16plus V2/19plus/19plus V2 to PN 801270 Tall Cage; required for SBE 16plus/16plus V2/19plus/19plus V2 with Quartz pressure sensor (document 67171 and drawing 22010)
Spare Parts
Batteries
- 801483 9D (10.8 V / 42 AH) lithium battery pack kit (document 67143) — see notes below.
- 801479 3DD (10.8 V / 30 AH) lithium battery pack kit (document 67144) — see notes below.
Notes:
1. Batteries not included.
2. Lithium battery packs cannot be used with a 16plus, 16plus-IM, 16plus V2, or 16plus-IM V2 that is integrated with SBE 5T or 5P pump, because of current limitations. They can be used with an instrument with no pump, or with an SBE 5M pump.
Hardware, O-ring, & Mounting Kits
- 60021 Battery end cap hardware & O-ring kit for SBE 16/16plus/16plus-IM/16plus V2/16plus-IM V2, 17plus, 19/19plus/19plus V2, 25, 26/26plus, 53, 54, 55, or AFM (document 67042)
- 50274 O-ring kit for SBE 16plus, 16plus-IM, 16plus V2, 16plus-IM V2, 19plus, or 19plus V2 (document 67102)
- 50273 Hardware kit for SBE 16plus, 16plus-IM, 16plus V2, 16plus-IM V2, 19plus, or 19plus V2 (document 67103)
- 90087 CTD plumbing kit (document 67108)
- 50276 Seaspares kit for SBE 16plus or 19plus with XSG/AG connectors (hardware, O-rings, magnetic switch, cable, dummy plugs, connectors, etc.) (document 67104)
- 50301 Seaspares kit for SBE 16plus or 19plus with wet-pluggable connectors (hardware, O-rings, magnetic switch, cable, dummy plugs, connectors, etc.) (document 67116)
Miscellaneous
- 801542 AF24173 Anti-Foulant Device (pair, bagged, labeled for shipping)
- 233186 High-head pressure port plug for muddy/biologically productive environments (for instrument with Druck pressure sensor) (Application Note 84)
