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SEACAT C-T Recorder (P optional) 
SBE 16plus V2

Brochure/specifications in pdf format    Manual - RS-232 or RS-485 (not yet available)   Reference Sheet - RS-232 or RS-485 (not yet available)     Configuration options & accessories

DESCRIPTION

SBE 16plus with standard plastic & optional titanium housing
Standard plastic and optional titanium housing shown

The SBE 16plus V2 (Version 2) SEACAT Recorder measures temperature and conductivity (pressure optional) and provides high accuracy and resolution, reliability, and ease-of-use on moorings and other long-duration, fixed-site deployments. The V2 is the most versatile successor in the line of SEACAT Recorders begun with the original SBE 16 SEACAT in 1987.

Compared to the previous SBE 16plus, the 16plus V2 incorporates an electronics upgrade and additional features. The V2 has two additional (six total) differentially amplified A/D input channels, FLASH memory is increased from 8 to 64 MB, and one RS-232 data input channel is added. Data can be output in XML as well as ASCII and HEX formats. Firmware upgrades can be downloaded through the communications port by the user, without opening the instrument.

The SBE 16plus V2 uses the same temperature and conductivity sensors proven in 10,000 SEACATs and MicroCATs, and (optionally) a silicon strain gauge or Digiquartz® pressure sensor. Improvements in design, materials, and signal acquisition techniques yield a low-cost instrument with superior performance that is also easy to use. Calibration coefficients, obtained in our computer-controlled high accuracy calibration baths, are stored in EEPROM memory. They permit data output in ASCII engineering units (degrees C, Siemens/m, decibars, salinity [PSU], sound velocity [m/sec.], etc.).

The SBE 16plus V2 sample interval is soft-programmable in 1-second increments ranging from 10 to 14,400 seconds. Between samples, the 16plus V2 powers down, drawing only 20 microamps of current. Nine alkaline D-cells provide power for 355,000 samples of C and T (operation time is shorter if powering auxiliary sensors). Conditioned power (500 ma) is available for auxiliary sensors (dissolved oxygen, turbidity, fluorescence, PAR, etc.). Data is recorded in non-volatile FLASH memory for 38.4K baud upload after recovery.

Real-time monitoring is practical using the SBE 16plus V2 3-wire RS-232C data output. The 16plus V2 is well suited to networked sensor arrays where its operation can be triggered by satellite, radio, or hardwire telemetry equipment. Optional RS-485 (2-wire) and inductive modem (1-wire loop) interfaces allow multiple SEACATs to share a simple and robust telemetry cable.

CONFIGURATION, OPTIONS, AND ACCESSORIES


Shown with optional pump and 
dissolved oxygen sensor

A standard SBE 16plus V2 is supplied with:

Options and accessories include:

SOFTWARE

The SBE 16plus V2 is supplied with a powerful Windows 2000/XP software package, SEASOFT© V2, which includes programs for communication and data retrieval, real-time data acquisition and display, and data processing (filtering, aligning, averaging) and plotting of CTD and auxiliary sensor data and derived variables.

SPECIFICATIONS

Dimensions in millimeters (inches)

  Measurement Range Initial Accuracy Typical Stability Resolution
Conductivity (S/m) 0 - 9 0.0005 0.0003 S/m/month 0.00005 typical
Temperature (°C) -5 to +35 0.005 0.0002 °C/month 0.0001
Pressure (optional) -- Strain-Gauge 0 to 20 / 100 / 350 / 600 / 1000 / 2000/ 3500 / 7000 meters 0.1% of full scale range 0.1% of full scale range/year 0.002% of full scale range
Pressure (optional) -- 
Quartz
0 to  20 / 60 / 130 / 200 / 270 / 680 / 1400 / 2000 / 4200 / 7000 / 10500 meters 0.02% of full scale range 0.025% of full scale range/year Depends on sample integration time; 0.0006% of full scale range for 1-second integration
         

Memory: 64 Mbyte non-volatile FLASH memory

Data Storage:
Recorded Parameter Bytes/Sample
T + C 6
Pressure -- strain-gauge or Quartz 5
each external voltage 2
auxiliary RS-232 sensor sensor dependent
date and time 4
   

Real-Time Clock: 32,768 Hz TCXO accurate to ±1 minute/year

Internal Batteries: 9 alkaline D-cells

External Power Supply: 9 - 28 VDC; consult factory for required current

Battery Endurance 1:
CT only: 355,000 samples
CTD only: 240,000 samples
CTD & 5M pump: 140,000 samples
1 With Duracell MN 1300 cells. Dependent on sampling scheme.

Auxiliary Voltage Sensors:
Auxiliary power out: up to 500 mA at 10.5 - 11 VDC
A/D resolution: 14 bits
Input range: 0 - 5 VDC

Depth Rating, Housing, and Weight:

Depth Rating Housing Material Weight in air Weight in water
600 m (1950 ft) acetal copolymer plastic 7.3 kg (16 lbs) 2.3 kg (5 lbs)
7000 m (22,900 ft) 3AL-2.5V titanium 13.7 kg (30 lbs) 8.6 kg (19 lbs)
10500 m (34,400 ft) 6AL-4V titanium    
       

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

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Last modified: 18-Jan-2010

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