Time Series Recording / Moored Instruments --
SBE 16plus V2, 19plus V2, 37, 39, 56, 26plus, 53, & 54, & WQM

A CTD measures Conductivity, Temperature, and Depth. Despite the name, all CTDs actually measure pressure, which is not quite the same thing as depth. The relationship between pressure and depth is a complex one involving water density and compressibility as well as the strength of the local gravity field. The CTD data can be used to calculate salinity, density, sound velocity, and other parameters of interest. The term CTD is often used today to describe a package that includes the actual CTD as well as auxiliary sensors to measure other parameters (such as dissolved oxygen, pH, turbidity, fluorometer, etc.).

A Moored instrument measures water parameters in one location, over an extended period of time, providing a time series of data. To reduce costs, a Moored CTD may not include a pressure sensor, because the deployment depth is known (approximately); the pressure sensor is optional in Sea-Bird Moored CTDs. Sea-Bird also manufactures Moored temperature sensors (SBE 39) as well as several instruments for high-accuracy pressure measurements (SBE 26plus wave and tide recorder, SBE 53 bottom pressure recorder, SBE 54 tsunami sensor).

Brochure/specifications - html or pdf    Manual - RS-232 (Current or All), RS-485 (not available yet)     Reference Sheet - RS-232 or RS-485 (not available yet)     Configuration options & accessories

The SBE 16plus V2 conductivity and temperature recorder is self-powered and self-contained, for depths up to 10,500 meters (34,400 ft). The 16plus V2 records data at programmable intervals in FLASH RAM and can be commanded to sample and output data for telemetry applications. Six differentially amplified A/D input voltage channels and one RS-232 channel for auxiliary sensors are standard. A standard RS-232 or optional RS-485 interface is used for programming, telemetry output, and data extraction.

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

Manual - RS-232 or RS-485     Reference Sheet - RS-232 or RS-485

Not in production since February 2008; replaced by SBE 16plus V2.

SBE 16 SEACAT C-T (P optional) Recorder

Manual

Not in production since 2001; replaced by SBE 16plus.

Brochure/specifications - html or pdf     Manual - Current or All       Reference Sheet     Configuration options & accessories

The SBE 16plus-IM V2 conductivity and temperature recorder is self-powered and self-contained, with an integral inductive modem for communication for depths up to 7000 meters (22,900 ft). The 16plus-IM records data at programmable intervals in FLASH RAM. The inductive modem uses a mooring cable as the communication link, permitting the 16plus-IM V2 to be easily positioned at any depth without the use of cable connectors. Six differentially amplified A/D input voltage channels and one RS-232 channel for auxiliary sensors are standard. 

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

Manual     Reference Sheet

Not in production since February 2008; replaced by SBE 16plus-IM V2.

Brochure/specifications - html or pdf     Manual - Current or All     Reference Sheet     Configuration options & accessories

While intended primarily for use as a profiling CTD (sampling at 4 Hz), the SBE 19plus V2 SEACAT has dual mode programmability, providing moored time series recording with most of the features of the 16plus V2 SEACAT. Switching modes just requires sending a few simple setup commands.

The SBE 19plus V2 is self-powered and self-contained, for depths up to 10,500 meters (34,400 ft). In moored mode, the 19plus V2 records data at programmable intervals in FLASH RAM and can be commanded to sample and output data for telemetry applications. Six differentially amplified A/D input voltage channels and one RS-232 channel for auxiliary sensors are standard. A standard RS-232 interface is used for programming, telemetry output, and data extraction.

SBE 19plus SEACAT Profiler

Manual     Reference Sheet

Not in production since February 2008; replaced by SBE 19plus V2.

SBE 19 SEACAT Profiler

Manual - English or Spanish

Not in production since 2001; replaced by SBE 19plus.

Brochure/specifications - html or pdf     Manual - RS-232 (Current or All), RS-485 (Current or All)    Reference Sheet - RS-232 or RS-485     Configuration options & accessories

The SBE 37-SMP combines the features of the 37-SM with an integral, internal pump. The pump provides improved conductivity response and anti-foul protection. Click here for a comparison of features across the MicroCAT product line.

Brochure/specifications - html or pdf     Manual - RS-232 (Current or All), RS-485 (Current or All)    Reference Sheet - RS-232 or RS-485     Configuration options & accessories

The SBE 37-SM is a high accuracy, conductivity and temperature recorder (pressure optional) with internal battery and memory. It is designed for moorings and other long-term fixed-site deployments at depths up to 7000 meters (23,000 ft). It includes a standard serial interface and non-volatile FLASH memory. Titanium and other non-corroding materials are used to minimize maintenance and ensure long-life. Click here for a comparison of features across the MicroCAT product line.