SBE 19plus SEACAT Profiler
Configuration Details

19plus in standard plastic housing with standard SBE 5M pump & associated plumbing (plumbing configuration shown for 19plus to be deployed in vertical orientation)

19plus is intended primarily as a profiling CTD, sampling at 4 Hz, but can also be used in moored mode to obtain long-term time series data. 19plus is powered by internal batteries, & records data in memory.

In addition, in profiling mode, 19plus can be deployed:

• With SBE 36 CTD Deck Unit & Power Data Interface Module (PDIM), which provide power & real-time data handling capability over single-conductor sea cables. For PDIM, specify 19p-9a or -9b; order SBE 36 separately.
  
• With SBE 32 Carousel Water Sampler & SBE 33 Deck Unit, which provide power, real-time data handling capability, & real-time water sampler control over single-conductor sea cables. Order SBE 32 (32, 32C, or 32SC) & SBE 33 separately.
  
• With SBE 32 Carousel Water Sampler & Auto Fire Module (AFM), which provide autonomous water sampling capability. Order SBE 32 (32, 32C, or 32SC) & AFM (by selecting appropriate Carousel operating mode configuration in 32, 32C, or 32SC listing) separately.
  
• With SBE 55 ECO Water Sampler & SBE 33 Deck Unit, which provide power, real-time data handling capability, & real-time water sampler control over single-conductor sea cables. Order SBE 55 & SBE 33 separately.
  
• With SBE 55 ECO Water Sampler, which has built- in capabilities similar to that of an SBE 32 integrated with an AFM, providing autonomous water sampling capability. Order SBE 55 separately.
  

For photos of standard shipment, click here.

SBE 19plus Housing (depth rating) Selections -- MUST SELECT ONE

• 2000 m sensor:
  initial accuracy = 2 m (= 0.1% * 2000 m),
  resolution = 0.04 m (= 0.002% * 2000 m)
• 7000 m sensor:
  initial accuracy = 7 m (= 0.1% * 7000 m),
  resolution = 0.14 m (= 0.002% * 7000 m)

Auxiliary sensors (dissolved oxygen, pH, fluorometer, transmissometer, etc.) plug into bulkhead connectors on 19plus connector end cap.

• 19p-3a provides 2 bulkhead connectors, each supporting 2 differential A/D channels (differential A/D channel is differentially amplified to reject noise).
• 19p-3b provides 1 bulkhead connector for 2 differential A/D channels, 1 bulkhead connector for third differential A/D channel, & 1 bulkhead connector for PAR sensor.

Note: 19p-3a & -3b do not include auxiliary sensors, mounts, or interface cables.

• See SBE 19plus Auxiliary Sensor and Integration Options below for ordering and integrating SBE 43 Dissolved Oxygen Sensor, SBE 18 pH Sensor, or SBE 27 pH/ORP Sensor with 19plus.
• See Third Party portion of price list for ordering details on fluorometers, transmissometers, turbidity meters, PAR sensors, etc. that are compatible with 19plus. These sensors can be purchased from Sea-Bird & integrated with 19plus at our factory. Alternatively, you can purchase sensors from third party manufacturers, purchase mount kits & cables from Sea-Bird, & perform integration yourself.

User can change sensors on 19plus in field, if combination is compatible with channel configuration selection. However, bulkhead connector(s) that support 2 differential A/D channels each require Y-cables to connect auxiliary sensors to 19plus; each Y-cable is unique to sensors being integrated, so changing sensors may require changing Y-cable. In addition, sensor mechanical mountings may need to be changed to suit selected combination of sensors.

SBE 19plus Wet-Pluggable Connector Options

Both 19p-5 options include additional cost of wet-pluggable connectors on 19plus & pump, data I/O cable compatible with wet-pluggable data I/O connector, & pump cable with wet-pluggable connectors on both ends.

• 19p-6, -7, & -8 include auxiliary sensor, mount, & straight cable to connect sensor to 19plus bulkhead connector. See auxiliary sensor specification sheets (SBE 43, 18, 27) for sensor descriptions. Auxiliary sensor connector type (standard or wet-pluggable) must match 19plus connector type.
• If connecting 2 sensors to 1 bulkhead connector, YMOLD (to create a y-cable) applies in addition to 19p-6, -7, & -8 price.
• Additional sensors not listed here ‑- fluorometers, transmissometers, turbidity meters, PAR sensors, etc. from third party manufacturers ‑- are compatible with 19plus. These sensors can be purchased from Sea-Bird & integrated with 19plus at our factory, or you can purchase mount kits & cables from Sea-Bird & perform integration yourself. See Third Party portion of price list.
• User can change sensors on 19plus in field. However, as noted above, Y-cable is required to connect 2 auxiliary sensors to 1 bulkhead connector on 19plus; each Y-cable is unique to sensors being integrated, so changing sensors may require changing Y-cable. In addition, sensor mechanical mountings may need to be changed to suit selected combination of sensors.

Sensor-Specific Information:

• SBE 43 -- Sensor is plumbed between conductivity sensor & pump. Consequently, system requires more powerful SBE 5T pump (19p-4) instead of standard 5M pump. SBE 43 is available in 7000 m titanium (19p-6a or -6b) or 600 m plastic (19p-6c or -6d) housing.

Moored Application Information:

• SBE 43 -- If intending to use 19plus in moored application, contact Sea-Bird to specify integration with an SBE 43 in Moored Configuration instead of Profiling Configuration (1 mil membrane vs 0.5 mil membrane for enhanced long-term stability; black plenum vs white plenum, and black Tygon tubing vs clear Tygon tubing for plumbing, for reduced bio-fouling).
• SBE 18 & SBE 27 -- Sensors are not recommended for use in moored applications. See Application Note 76: pH or pH/ORP Sensors and Moored Applications.

SBE 36 CTD Deck Unit & PDIM provide surface power & real-time data acquisition & control for 19plus, allowing deployment with 10,000 m long single-conductor sea cables. SBE 36 is installed on ship, while PDIM is mounted on or near 19plus. See SBE 36 description for more information on interface.

SBE 33 Deck Unit is typically used to provide surface power & real-time data acquisition & control for 19plus & SBE 32 (32, 32C, or 32SC) Carousel Water Sampler or SBE 55 ECO Water Sampler. However, it can be used with PDIM instead of Carousel or ECO to provide same functionality as SBE 36 & PDIM.

PDIM housing is anodized aluminum, & is rated to 6800 m. PDIM connector type (standard or wet-pluggable) must match 19plus connector type.

19p-9a & -9b do not include SBE 36 or 33 Deck Unit; order separately.

 
Can substitute SBE 33 Carousel Deck Unit for SBE 36 CTD Deck Unit.
For SBE 33, both NMEA & PAR interfaces are optional.

Many users purchase optional cage to protect system from damage during deployment. 19plus deployed with SBE 32 (full size) Carousel Water Sampler requires cage, which is mounted horizontally to bottom of Carousel frame.

19plus deployed on SBE 32C (compact) or 32SC (subcompact) Carousel Water Sampler is mounted in bottle position on Carousel, & does not use cage.

Note: This cage is for use with SBE 19plus, but not with older SEACAT (SBE 19).

Select a cable with connector (standard XSG or wet-pluggable MCBH) to match your 19plus.

• 50276 for 19plus with standard connectors -- See document 67104 for complete listing of parts.
• 50301 for 19plus with wet-pluggable connectors -- See document 67116 for complete listing of parts.

Anti-foulant devices are typically used when 19plus is deployed on a mooring, instead of as a profiling CTD. Use of Anti-foulant devices requires installation of PN 50288 SBE 19plus Moored Mode Conversion Kit (see SBE 19plus Accessories above); anti-foulant devices fit into anti-foulant device cups at each end of conductivity cell.

Useful life varies, depending on several factors. We recommend that customers consider more frequent replacement when high biological activity & strong current flow (greater dilution of anti-foulant concentration) are present. Moored instruments in high growth & strong dilution environments have been known to obtain a few months of quality data, while drifters that operate in non-photic, less turbid deep ocean environments may achieve years of quality data. Experience may be strongest determining factor in specific deployment environments.