Metrology Standards & Calibration Laboratories
SBE 911plus

Print version     Current Manual - SBE 9plus, 11plus V2, & 17plus V2 (for older manuals, click here)     Configuration options & accessories - SBE 9plus, 11plus V2, & 17plus V2

Following consultation with the US National Institute of Standards and Technology, Sea-Bird's metrology lab was configured to achieve temperature precision of 50 µK and accuracy of 0.0005° C. To obtain this performance, premium primary references, including four Jarrett water triple-point cells (with maintenance bath) and an Isotech gallium melt cell, are operated in conjunction with two YSI 8163 standards-grade platinum resistance thermometers and an ASL Model F18 Automatic Temperature Bridge. IAPSO standard seawater and a Guildline 8400B AutoSal provide the highest obtainable salinity accuracy of 0.002 PSU.

SBE 911plus temperature and conductivity sensors are calibrated in low-gradient, computer-controlled baths capable of transferring Sea-Bird metrology lab accuracies within 0.0005° C and 0.001 PSU.

Calibration data from Sea-Bird's computer-controlled baths are collated to produce certificates showing the latest results. Overplots of previous calibrations allow the user to judge the stability of the sensor over time.

SBE 911plus Digiquartz pressure calibrations are performed by Paroscientific, Inc. using a DH Model 5206 Primary Pressure Standard (oil-operated dead weight tester) certified to an accuracy of 0.01% of reading (0.7 dbar at 6800 meters depth). Cross-comparison against independent standards has established the consistent accuracy of the Paroscientific calibrations.

Accuracy and stability of the SBE 911plus quartz master clock is judged against a Spectracom Model 8163 reference oscillator phase-locked to the U.S. National Institute of Standards and Technology's WWVB 60 kHz broadcast signal.

ADDITIONAL INFORMATION / LINKS:

Documentation -- manual, photos, technical papers, application notes, etc.

• Current product manuals -- SBE 9plus, 11plus V2, and 17plus V2
  (for older manuals, click here)
• Photo Gallery
• SBE 911plus Description and Specifications
• System Engineering and the Fundamental Principles of CTD Accuracy
• How the 911plus CTD Works
• Instructions for removal of TC Duct for Temperature/Conductivity Sensor return for Calibration
• Print version of this specification sheet / brochure\
• Application Notes:
  - 2D: Instructions for Care and Cleaning of Conductivity Cells
  - 6: Determination of Sound Velocity from CTD Data
  - 10: Compressibility Compensation of Sea-Bird Conductivity Sensors
  - 11S: Using Biospherical Surface PAR Light Sensor with SBE 11plus Deck Unit
  - 12-1: Pressure Port Oil Refill Procedure and Nylon Capillary Fitting Replacement
  - 14: 1978 Practical Salinity Scale
  - 15: TC Duct Assembly & Plumbing Installation
  - 34: Conductivity Cell Filling and Storage Device P/N 50087
  - 35: Use of SBE 911plus with General Oceanics 1015 Rosette
  - 36a: Installation of P/N 50094 Conductivity Cell Tubing Connector Kit
  - 38: TC Duct Fundamentals
  - 42: ITS-90 Temperature Scale
  - 64-1: Plumbing Installation -- SBE 43 DO Sensor and Pump on a CTD
  - 68: Using USB Ports to Communicate with Sea-Bird Instruments
  - 69: Conversion of Pressure to Depth
  - 71: Desiccant Use and Regeneration (drying)
  - 73: Using Instruments with Pressure Sensors at Elevations Above Sea Level
  - 75: Maintenance of SBE 5T, 5P, and 5M Pumps
  - 90: Absolute Salinity and TEOS-10: Sea-Bird's Implementation Plans

Sales Information -- options, accessories, cables, mount kits, spares, etc.

• Configuration options & accessories:
  - Details for SBE 9plus, 11plus V2, & 17plus V2
  - Listing for all products
• Cables
• Mount kits -- for Sea-Bird instruments      for Third Party instruments
• Spare parts

Software -- components of Seasoft V2

• Seaterm -- description, download
• SeatermAF -- description, download
• Seasave V7 -- description, download
• SBE Data Processing -- description, download

Links to Other Instruments of Interest

• SBE 5T Titanium Pump -- standard equipment supplied with 9plus
• SBE 32 Carousel Water Sampler
• SBE 17plus V2 SEARAM -- memory/battery/auto fire module for autonomous use of 9plus without conductive cable
• SBE 14 Remote Depth Readout -- rugged, spray-proof display box suitable for mounting at winch operator's position
• SBE 46 LCD Display Box -- for indoor display of up to 4 parameters (consult Sea-Bird for version compatibility before ordering)
• CTDs:
  - SBE 25 CTD -- lower cost CTD, can acquire data from auxiliary sensors
  - SBE 19plus V2 CTD -- small, economical CTD, can acquire data from auxiliary sensors
  - SBE 49 CTD -- CTD for towed vehicles, ROVs, AUVs, etc.
  - SBE 52-MP CTD -- CTD for moored profiling applications

Specifications are subject to change without notice.

Last modified: 23-Feb-2011

Sea-Bird Home     Phone: (+1) 425-643-9866     Fax: (+1) 425-643-9954     E-mail: seabird@seabird.com