SBE 26plus Seagauge Wave & Tide Recorder
Auto-spectrum plot of surface wind waves from 1 burst sample of 1024 pressure measurements. Error bars correspond to 90% confidence intervals.
The SBE 26plus combines a stable time base, precision thermometer, and pressure sensor (Quartz or strain-gauge) to provide wave and tide recording of unprecedented resolution and accuracy, along with high-quality temperature information. The 26plus stores data in memory, and also outputs real-time tide data, wave data, and wave statistics. The large memory and low power requirements permit frequent water level recording and highly detailed wave characterization.
The 26plus integrates pressure samples to obtain water level measurements unaffected by wave action, and also independently burst-samples pressure at up to 4 Hz for wave amplitude calculation. The tide interval is programmable (1 minute to 12 hours). A 26plus with Quartz pressure can continuously measure pressure, or can conserve battery power by removing power from the pressure sensor between tide measurements (programmable integration from 10 sec to the entire tide interval). Temperature data is recorded with each tide. Waves are characterized by burst sampling, with programmable burst interval, number of samples/burst, and integration time. Logging start and stop times are programmable, allowing lab setup before deployment. An input connector for an optional SBE 4M conductivity sensor is standard.
- Wave and Tide, Temperature, and optional Conductivity, at user-programmable tide intervals and wave burst intervals.
- RS-232 or RS-485 interface, internal memory, and internal alkaline batteries (can be powered externally).
- Real-time tide data, wave data, and/or wave statistics, and fast binary upload of data from memory.
- Large memory and low power requirements: 1.8-year deployment with optional conductivity for 11-minute tide measurements every 30 minutes and 8.5-minute, 4 Hz wave-burst samples every 3 hours.
- Depths to 600 m.
- Seasoft© for Waves Windows software package (deployment planning, setup, data upload, plotting, auto-spectrum and time series analysis, and statistics reporting).
- Five-year limited warranty.
- Pressure sensor with temperature compensation in four strain-gauge ranges (20 to 600 m) and nine Digiquartz® ranges (0.2 to 680 m).
- Aged and pressure-protected thermistor with a long history of exceptional accuracy and stability.
- Frequency-input channel and bulkhead connector for optional SBE 4M conductivity sensor.
- Digiquartz® or lower-priced strain-gauge pressure sensor (for wave sampling applications; will not provide highest quality tide data).
- Accurate temperature sensor (aged thermistor embedded in end cap) or high-accuracy external temperature sensor.
- RS-232 interface or RS-485 full duplex interface.
- XSG/AG or wet-pluggable MCBH connectors.
- SBE 4M Conductivity sensor, interfaced via bulkhead connector and clamped to housing.
- Mounting fixture.
- Lithium batteries (not supplied by Sea-Bird).
|Quartz Pressure||9 ranges, from 0.2 m (15 psia) to 680 m (1000 psia)|
|Strain-Gauge Pressure||4 ranges, from 20 m (45 psia) to 600 m (880 psia)|
|Temperature||-5 to +35 °C (embedded or high-accuracy external)|
|Conductivity (optional)||0 to 7 S/m|
|Quartz Pressure *||± 0.01% of full scale (3 mm for 45 psia)|
|Strain-Gauge Pressure *||± 0.1% of full scale (30 mm for 45 psia)|
|Temperature||± 0.01 °C (embedded); ± 0.002 °C (high-accuracy external)|
|Conductivity (optional)||± 0.001 S/m|
* Stated values in mm for 45 psia pressure sensor. Scale for other ranges, multiplying by (sensor psia / 45 psia)
|Quartz Pressure *||0.02% of full scale/year (6 mm for 45 psia)|
|Strain-Gauge Pressure *||0.1% of full scale/year (30 mm for 45 psia)|
* Stated values in mm for 45 psia pressure sensor. Scale for other ranges, multiplying by (sensor psia / 45 psia)
|Quartz Pressure *||Tide: 0.2 mm (1-min integration); 0.01 mm (15-min integration)
Wave: 0.4 mm (0.25-sec integration); 0.1 mm (1-sec integration)
|Strain-Gauge Pressure *||Tide: 0.2 mm (1-min integration); 0.01 mm (15-min integration)
Wave: 0.4 mm (0.25-sec integration); 0.1 mm (1-sec integration)
|Temperature||0.001 °C (embedded); 0.0001 °C (high-accuracy external)|
|Conductivity (optional)||0.00002 S/m|
* Stated values in mm for 45 psia pressure sensor. Scale for other ranges, multiplying by (sensor psia / 45 psia)
|Quartz Pressure *||0.005% of full scale (1.5 mm for 45 psia)|
|Strain-Gauge Pressure *||0.03% of full scale (9 mm for 45 psia)|
|Memory & Data Storage||32 Mbyte Flash RAM
Tide with temperature, time: 9 bytes/sample
Tide with temperature, conductivity, time: 12 bytes/sample
Wave burst: 3 bytes/sample
|Power Supply||12 alkaline D-cells or 6 lithium DD-cells (see manual for battery specifications and endurance)|
|Optional External Power||12 - 20 VDC|
|Housing, Depth Rating, & Weight||Acetal Copolymer Plastic, 600 m, in air 6.8 kg; in water 2.3 kg
Mounting fixture weight in air 3.6 kg; in water 1.4 kg
What are the recommended practices for storing sensors at low temperatures, and deploying at low temperatures or in frazil or pancake ice?
Large numbers of Sea-Bird conductivity instruments have been used in Arctic and Antarctic programs.
Special accommodation to keep temperature, conductivity, oxygen, and optical sensors at or above 0 C is advised. Often, the CTD is brought inside protective doors between casts to achieve this.
When freezing is possible, we recommend that the conductivity sensor be stored dry. Remove larger droplets of water by blowing through the cell. Do not use compressed air, which typically contains oil vapor. Attach a length of Tygon tubing to each end of the conductivity cell to close the cell ends. See Application Note 2D: Instructions for Care and Cleaning of Conductivity Cells for details.
There are several considerations to weigh when contemplating deployments at low temperatures in general, and in frazil or pancake ice:
- Ensure that the instrument is at or above water temperature before it is deployed. If the cell gets colder than 0 to -2 ºC while on deck, when it enters the water a layer of ice forms inside the cell as the cell warms to ocean temperature. If ice forms inside the conductivity cell, measurements will be low of correct until the ice layer melts and disappears. Thin layers of ice will not hurt the conductivity cell, but repeated ice formation on the electrodes will degrade the conductivity calibration (at levels of 0.001 to 0.020 psu) and thicker layers of ice can lead to glass fracture and permanent damage of the cell.
- For accurate measurements, keep ice out of the sensing region of the conductivity cell. The conductivity measurement involves determining the electrical resistance of the water inside the sensor. Ice is essentially a non-conductor. To the extent that ice displaces the water, the conductivity will register (very) misleadingly low. Some type of screening is necessary to keep ice out of the cell. This is relatively easy to arrange for the Sea-Bird conductivity cell, which is an electrode-type cell, because its sensing region is totally inside a long tube; plastic mesh could be positioned at each end and would have zero effect on accuracy and stability.
The above considerations apply to all known conductivity sensor types, whether electrode or inductive types.
If deploying at low temperatures but no surface frazil or pancake ice is present, rinse the conductivity cell in one of the following salty solutions (salty water depresses the freezing point) to prevent freezing during deployment. But this does not mean you can store the cell in one of these solutions outside . . . it will freeze.
- Solution of 1% Triton in sterile seawater (use 0.5-micron filtered seawater or boiled seawater), or
- Brine solution (distilled seawater or homemade salt solution that is higher than 35 psu in salinity).
Note that there is still a risk of forming ice inside the conductivity cell if deploying through frazil or pancake ice on the surface, if the freezing point of the salt water is the same as the water temperature. Therefore, we recommend that you deploy the conductivity cell in a dry state for these deployments.
Commercially available alcohol or glycol antifreezes contain trace amounts of oils that will coat the conductivity cell and the electrodes, causing a calibration shift, and consequently result in errors in the data. Do not use alcohol or glycol in the conductivity cell.
In general, neither the accuracy of the temperature measurement nor the survival of the temperature sensor will be affected by ice.
For the SBE 43 and SBE 63 Dissolved Oxygen sensor, avoid prolonged exposure to freezing temperature, including during shipment. Do not store with water (fresh or seawater), Triton solution, alcohol, or glycol in the plenum. The best precaution is to keep the sensor indoors or in some shelter out of the cold weather.
Can I use a pressure sensor above its rated pressure?
Digiquartz pressure sensors are used in the SBE 9plus, 53, and 54. The SBE 16plus V2, 16plus-IM V2, 19plus V2, and 26plus can be equipped with either a Druck pressure sensor or a Digiquartz pressure sensor. All other instruments that include pressure use a Druck pressure sensor.
- The overpressure rating for a Digiquartz (as stated by Paroscientific) is 1.2 * full scale. The sensor will provide data values above 100% of rated full scale; however, Sea-Bird does not calibrate beyond the rated full scale.
- The overpressure rating for a Druck (as stated by Druck) is 1.5 * full scale. The sensor will provide data values above 100% of rated full scale; however, Sea-Bird does not calibrate beyond the rated full scale.
Note: If you use the instrument above the rated range, you do so at your own risk; the product will not be covered under warranty.
How do instruments handle external power if internal batteries are installed?
Most Sea-Bird instruments that are designed to be powered internally or externally incorporate diode or'd circuitry, allowing only the voltage that has the greater potential to power the instrument. You can power the instrument externally without running down the internal batteries. This allows you to lab test using external power that has higher voltage than the internal batteries, and then deploy using internal power, knowing that the internal batteries are fresh.
For the SBE 25plus, if external power of 14 volts or higher is applied, the 25plus runs off of the external power, even if the main battery voltage is higher.
Do you recommend a particular brand of alkaline D-cell batteries?
For Sea-Bird instruments that use alkaline D-cells, Sea-Bird uses Duracell MN 1300, LR20. While rare, we have seen a few problems with cheaper batteries over the years: they are more likely to leak, may vary in size (leading to loose batteries causing a bad power connection), and may not last as long.
How should I handle my CTD to avoid cracking the conductivity cell?
Shipping: Sea-Bird carefully packs the CTD in foam for shipping. If you are shipping the CTD or conductivity sensor, carefully pack the instrument using the original crate and packing materials, or suitable substitutes.
Use: Cracks at the C-Duct end of the conductivity cell are most often caused by:
- Hitting the bottom, which can cause the T-C Duct to flex, resulting in cracking at the end of the cell.
- Removing the soaker tube from the T-C duct in a rough manner, which also causes the T-C Duct to flex. Pulling the soaker tube off at an angle can be especially damaging over time to the cell. Pull the soaker tube off straight down and gently.
- Improper disassembly of the T-C ducted temperature and conductivity sensors (SBE 25, 25plus, and 9plus) when removing them for shipment to Sea-Bird for calibration. See Shipping SBE 9plus, 25, and 25plus Temperature and Conductivity Sensors for the correct procedure.
Note: If a Tygon tube attached to the conductivity cell has dried out, yellowed, or become difficult to remove, slice (with a razor knife or blade) and peel the tube off of the conductivity cell rather than twisting or pulling the tube off.
How should I pick the pressure sensor range for my CTD? Would the highest range give me the most flexibility in using the CTD?
While the highest range does give you the most flexibility in using the CTD, it is at the expense of accuracy and resolution. It is advantageous to use the lowest range pressure sensor compatible with your intended maximum operating depth, because accuracy and resolution are proportional to the pressure sensor's full scale range. For example, the SBE 9plus pressure sensor has initial accuracy of 0.015% of full scale, and resolution of 0.001% of full scale. Comparing a 2000 psia (1400 meter) and 6000 psia (4200 meter) pressure sensor:
- 1400 meter pressure sensor ‑ initial accuracy is 0.21 meters and resolution is 0.014 meters
- 4200 meter pressure sensor ‑ initial accuracy is 0.63 meters and resolution is 0.042 meters
How often do I need to have my instrument and/or auxiliary sensors recalibrated? Can I recalibrate them myself?
- Profiling CTD — recalibrate once/year, but possibly less often if used only occasionally. We recommend that you return the CTD to Sea-Bird for recalibration. (In principle, it is possible for calibration to be performed elsewhere, if the calibration facility has the appropriate equipment andtraining. However, the necessary equipment is quite expensive to buy and maintain.) In between laboratory calibrations, take field salinity samples to document conductivity cell drift.
- Thermosalinograph — recalibrate at least once/year, but possibly more often depending on the degree of bio-fouling in the water.
- DO sensor —
— SBE 43 — recalibrate once/year, but possibly less often if used only occasionally and stored correctly (see Application Note 64), and also depending on the amount of fouling and your ability to do some simple validations (see Application Note 64-2)
— SBE 63 — recalibrate once/year, but possibly less often if used only occasionally and stored correctly and also depending on the amount of fouling and your ability to do some simple validations (see SBE 63 manual)
- pH sensor —
— SBE 18 pH sensor or SBE 27 pH/ORP sensor — recalibrate at the start of every cruise, and then at least once/month, depending on use and storage
— Satlantic SeaFET pH sensor — recalibrate at least once/year. See FAQ tab on Satlantic's SeaFET page for details (How often does the SeaFET need to be calibrated?).
- Transmissometer — usually do not require recalibration for several years. Recalibration at the manufacturer’s factory is the most practical method.
We often have requests from customers to have some way to know if the CTD is out of calibration. The general character of sensor drift in Sea-Bird conductivity, temperature, and pressure measurements is well known and predictable. However, it is very difficult to know precisely how far a CTD calibration has drifted over time unless you have access to a very sophisticated calibration lab. In our experience, an annual calibration schedule will usually maintain the CTD accuracy to within 0.01 psu in Salinity.
Conductivity drifts as a change in slope as a result of accumulated fouling that coats the inside of the conductivity cell, reducing the area of the cell and causing an under-reporting of conductivity. Fouling consists of both biological growth and accumulated oils and inorganic material (sediment). Approximately 95% of fouling occurs as the cell passes through oil and other contaminants floating on the sea surface. Most conductivity fouling is episodic, as opposed to gradual and steady drift. Most fouling events are small and mostly transitory, but they have a cumulative affect over time. A severe fouling event, such as deployment through an oil spill, could have a dramatic but only partially recoverable effect, causing an immediate jump shift toward lower salinity. As fouling becomes more severe, the fit becomes increasingly non-linear and offsets and slopes no longer produce adequate correction, and return to Sea-Bird for factory calibration is required. Frequently checking conductivity drift is likely to be the most productive data assurance measure you can take. Comparing conductivity from profile to profile (as a routine check) will allow you to detect sudden changes that may indicate a fouling event and the need for cleaning and/or re-calibration.
Temperature generally drifts slowly, at a steady rate and predictably as a simple offset at the rate of about 1-2 millidegrees per year. This is approximately equal to 1-2 parts per million in Salinity error (very small).
Pressure sensor drift is also an offset, and annual comparisons to an accurate barometer to determine offset will generally keep the sensor within specification for several years, particularly as the sensors age over time.
Do I need to remove batteries before shipping my instrument for a deployment or to Sea-Bird?
Alkaline batteries can be shipped installed in the instrument. See Shipping Batteries for information on shipping instruments with Lithium or Nickel-Metal Hydride (NiMH) batteries.
What are the recommended practices for connectors - mating and unmating, cleaning corrosion, and replacing?
Mating and Unmating Connectors:
It is important to prepare and mate connectors correctly, both in terms of the costs to repair them and to preserve data quality. Leaking connectors cause noisy data and even potential system shutdowns. Application Note 57: Connector Care and Cable Installation describes the proper care and installation of connectors for Sea-Bird instruments. The Application Note covers connector cleaning and cable or dummy plug installation, locking sleeve installation, and cold weather tips.
Checking for Leakage and Cleaning Corrosion on Connectors:
If there has been leakage, it will show up as green-colored corrosion product. Performing the following steps can usually reverse the effect of the leak:
- Thoroughly clean the connector with water, followed by alcohol.
- Give the connector surfaces a light coating of silicon grease.
Re-mate the connectors properly — see Application Note 57: Connector Care and Cable Installation and 9-minute video covering O-ring, connector, and cable maintenance.
- The main concern when replacing a bulkhead connector is that the o-rings on the connector and end cap must be prepared and installed correctly; if they are not, the instrument will flood. See the question below for general procedure on handling o-rings.
- Use a thread-locking compound on the connector threads to prevent the new connector from loosening, which could also lead to flooding.
- If the cell guard must be removed to open the instrument, take extra care not to break the glass conductivity cell.
What are the recommended practices for inspecting, cleaning, and replacing o-rings?
Inspecting and Cleaning O-Rings and Mating Surfaces:
- Remove any water from the o-rings and mating surfaces with a lint-free cloth or tissue.
- Visually inspect the o-rings and mating surfaces for dirt, nicks, cuts, scratches, lint, hair, and any signs of corrosion; these could cause the seal to fail. Clean the surfaces, and clean or replace the o-rings as necessary.
- Apply a light, even coat of 100% silicon o-ring lubricant (Parker Super O Lube) to the o-rings and mating surfaces. For an end cap o-ring, a ball of lubricant the size of a pea is about all that is needed. Too much lubricant can cause the seal to fail as much, if not more, than no grease. Do not use petroleum-based lubricant (car grease, Vaseline, etc.), as it will cause premature failure of the rubber.
CAUTION: Parker makes another product, Parker O Lube, that is petroleum-based. Do not use this product; verify that you are using Parker Super O Lube.
- After lubricating the o-ring, immediately reassemble the end cap or connector, verifying that no hairs or lint have collected on the lubricated o-ring.
- End Cap O-Rings: We recommend scheduled replacement of end cap o-rings approximately every 3 years, to prevent leaks caused by normal o-ring wear.
- Connector O-Rings: Replacing connector o-rings requires de-soldering and re-soldering the connector wires, which makes it a more difficult task. Therefore, we recommend replacement of connector o-rings when needed, not on a routine, scheduled basis.
- 9-minute video covering O-ring, connector, and cable maintenance.
- Short, silent video of application of lubricant to o-ring.
- Short, silent video of application of lubricant to o-ring mating surface (note the use of a plastic dental syringe — no sharp points to scratch the housing — to apply the lubricant).
|Family||Model||.||Housing||Pressure Sensor/Range||Connectors||Temperature Sensor||Communications|
|26||P||.||1 – 600 m (plastic)||1 – 30 dbar strain gauge||1 – XSG/AG||1 – Internal||0 – RS-232|
|2 – 110 dbar strain gauge||2 – MCBH||2 – External||1 – RS-485|
|3 – 350 dbar m strain gauge|
|4 – 600 dbar strain gauge|
|A – 45 psia Digiquartz|
|B – 100 psia Digiquartz|
|C – 200 psia Digiquartz|
|D – 300 psia Digiquartz|
|E – 400 psia Digiquartz|
|F – 1000 psia Digiquartz|
|L – 15 psia Digiquartz|
|M – 23 psia Digiquartz|
|N – 30 psia Digiquartz|
Example: 26P.1A200 is an SBE 26plus with 600 m housing, 45 psia Digiquartz pressure sensor, MCBH connectors, internal temperature sensor, and RS-232 communications. See table below for description of each selection:
SEAGAUGEplus Wave & Tide Recorder - With Digiquartz pressure sensor, temperature sensor, 600 m plastic housing with battery compartment for 12 D cells. Includes 32 MB memory, serial interface with ASCII real-time data output, frequency input channel for SBE 4M conductivity sensor, 2.5 m data I/O cable, Seasoft for Waves software, & complete documentation. (For depths greater than 680 m, use SBE 53 BPR)
|SBE 26plus Pressure Sensor (approximate maximum depth) Selections — MUST SELECT ONE|
|26P.11xxx||20 m (30 dbar absolute) Druck strain gauge (CREDIT)||
Comparing strain gauge to Quartz pressure sensor specifications:
The 20 m strain gauge sensor provides excellent wave measurements; low accuracy water level can be obtained with the other strain gauge ranges.
Pressure sensor is installed in connector end cap, & is not field-replaceable / swappable. While highest depth rating gives most flexibility in using 26plus, it is at expense of accuracy & resolution. It is advantageous to use lowest range pressure sensor compatible with your intended maximum operating depth, because accuracy & resolution are proportional to sensor's full scale range. For example, comparing several strain gauge & Digiquartz sensors:
|26P.12xxx||100 m (110 dbar absolute) Druck strain gauge (not recommended for waves) (CREDIT)|
|26P.13xxx||350 m (350 dbar absolute) Druck strain gauge (not recommended for waves) (CREDIT)|
|26P.14xxx||600 m (600 dbar absolute) Druck strain gauge (not recommended for waves) (CREDIT)|
|26P.1Axxx||45 psia (20 m) Digiquartz pressure sensor|
|26P.1Bxxx||100 psia (60 m) Digiquartz pressure sensor|
200 psia (130 m) Digiquartz pressure sensor
300 psia (200 m) Digiquartz pressure sensor
400 psia (270 m) Digiquartz pressure sensor
|26P.1Fxxx||1000 psia (680 m) Digiquartz pressure sensor (longer housing required)|
|26P.1Lxxx||15 psia (1 m, for high altitude lake research) Digiquartz pressure sensor|
|26P.1Mxxx||23 psia (5 m) Digiquartz pressure sensor|
|26P.1Nxxx||30 psia (10 m) Digiquartz pressure sensor|
|SBE 26plus Connector Selections — MUST SELECT ONE|
|26P.1x1xx||XSG/AG connectors on instrument & data I/O cable||
Wet-pluggable connectors may be mated in wet conditions. Their pins do not need to be dried before mating. By design, water on connector pins is forced out as connector is mated. However, they must not be mated or un-mated while submerged. Wet-pluggable connectors have a non-conducting guide pin to assist pin alignment & require less force to mate, making them easier to mate reliably under dark or cold conditions, compared to XSG/AG connectors. Like XSG/AG connectors, wet-pluggables need proper lubrication & require care during use to avoid trapping water in sockets.
|26P.1x2xx||Wet-pluggable (MCBH) connectors on instrument & data I/O cable|
|SBE 26plus Temperature Sensor Selections — MUST SELECT ONE|
|26P.1xx1x||Accurate (0.01 C) internal thermistor||
Internal thermistor has 0.01 °C accuracy, 0.001 °C resolution.
External thermistor has 0.002 °C accuracy, 0.0001 °C resolution.
|26P.1xx2x||High accuracy (0.002 C) external thermistor probe|
|SBE 26plus Serial Interface Selections — MUST SELECT ONE|
|26P.1xxx0||RS-232 interface (4-pin connector)||
26plus with RS-232 interface can transmit data over 25 m of cable at 38,400 baud, 1600 m of cable at 600 baud (interpolate to determine maximum lengths for intermediate baud rates).
26plus with RS-485 interface can transmit data over 1200 m of twisted pair wire cable (26 AWG or smaller gauge) at up to 38,400 baud.
|26P.1xxx1||RS-485 full duplex interface (6-pin connector)|
|SBE 26plus Conductivity Sensor Options|
|26p-3c||Conductivity sensor (SBE 4M, titanium housing, XSG connector on SBE4, 26plus, & cable) - includes cable & mount, anti-foul holders & AF24173 anti-foulant devices||
26plus supports input from optional SBE 4M conductivity sensor through 3-pin bulkhead connector. SBE 4M can be integrated with 26plus at our factory, or you can purchase SBE 4M, mount kit, cable, anti-foul holders, & AF24173 anti-foulant devices at a later date & perform integration yourself.
SBE 4M is shipped with Tygon tubing looped end-to-end around conductivity cell, to prevent dust & dirt from entering cell. SBE 4M is shipped dry to prevent conductivity cell damage from freezing.
|26p-3e||Conductivity sensor (SBE 4M, titanium housing, MCBH connector on SBE4, 26plus, & cable) - includes cable & mount, anti-foul holders & AF24173 anti-foulant devices|
|26p-3d||Delete Anti foulant holder & AF24173 from conductivity sensor option (CREDIT)||
When included with a 26plus, SBE 4M includes a 50315 fitting on each end to hold an AF24173 Anti-Foulant Device. If you are deploying 26plus in an area where you do not think conductivity cell fouling will be a problem, you may delete fittings & anti-foulant devices for credit.
|SBE 26plus Spares & Accessories|
|50102||Seagauge mounting fixture with mooring lock pin for quick installation & removal (without tools) from permanent deployment site||Optional mounting fixture not included with standard shipment. See document 67188.|
|801225||Data I/O cable, RMG-4FS w/ DB-9S, 2.4 m (DN 32421)||These test cables are used for setting up system & uploading data from memory after recovery. Applicable cable is included with 26plus; listing here is for spare cable.|
|801374||Data I/O cable, Wet-pluggable (MCIL-4FS) w/ DB-9S, 2.4 m (DN 32715)|
|20200||USB to Serial Port Adapter, FTDI UC232R-10 (connects computers with USB ports to RS-232 instruments)||Many newer PCs & laptop computers have USB port(s) instead of RS-232 serial port(s). USB serial adapter plugs into USB port, & allows a serial device to be connected through adapter. Multi-port adapters are available from other companies; see Application Note 68.|
|17695||SBE 4 to SBE 26/26plus/53 interface cable, RMG-3FS to RMG-3FS, 0.3 m (DN 30566)||17695 included if 26plus is ordered with XSG/AG connectors (26P.1x1xx) & SBE 4M (26p-3c); this is spare.
171752 included if 26plus is ordered with wet-pluggable connectors (26P.1x2xx) & SBE 4M (26p-3e); this is spare.
|171752||SBE 4 to SBE 26/26plus/53 interface cable, Wet-pluggable (MCIL-3FS to MCIL-3FS), 0.3 m (DN 32671)|
|50286||SBE 4 mounting bracket for SBE 26/26plus/53||Mount bracket included if 26plus is ordered with SBE 4M (26p-3c); this is spare.|
|50315||Anti-foul holder kit - installs on SBE 4M to allow use of AF24173 in place of obsolete 24012 Anti-Foulant Devices. Order AF24173 separately.||
50315 provides fittings (2) to hold AF24173 Anti-Foulant Devices at each end of optional SBE 4M conductivity cell. See Application Note 70: Installing Anti-Foulant Device Mount Kit on SBE 4, 16, 19, and 21 Conductivity Cells.
|801542||AF24173 Anti-Foulant Device pair (spare, bagged, labeled for shipping)|
|801575||Battery Cover Spacer / Adapter, 12 D alkaline cells to 6 DD Electrochem Lithium cells||Battery cover spacer/adapter is required if using DD lithiums (six DD drop-in batteries with buttons), because 1 lithium DD battery is shorter than 2 alkaline D batteries.
Note: Sea-Bird does not supply Electrochem lithium batteries; you must purchase them elsewhere (see WGT's website for purchasing information). Shipping restrictions apply for Electrochem lithium batteries & assembled battery packs.
Many cables, mount kits, and spare parts can be ordered online.
- 801225 To computer COM port (from 4-pin RS-232 XSG connector), 2.4 m, DN 32421
- 801374 To computer COM port (from 4-pin RS-232 Wet-pluggable connector), 2.4 m, DN 32715
- 801584 To computer COM port (from 6-pin RS-422/RS-485 AG connector), 2.4 m, DN 33051
- 802124 To computer COM port (from 6-pin RS-422/RS-485 Wet-pluggable connector), 2.4 m, DN 33661
- 17695 To SBE 4 (RMG connectors),0.28 m, DN 30566
- 171752 To SBE 4 (Wet-pluggable connectors), 0.28 m, DN 32671
- 50102 SBE 26 Mounting Fixture (document 67188)
- 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)
- 50092 Jackscrew kit for SBE 16, 17plus, 19, 21, 25, 26/26plus, 52-MP, 53, 54, AFM, or PDIM
- 50056 Hardware kit for SBE 26/26plus, 53, or 54 (document 67016)
- 801575 Battery Cover Spacer / Adapter, 12 D alkaline cells to 6 DD Electrochem Lithium cells
- 801542 AF24173 Anti-Foulant Device (pair, bagged, labeled for shipping)
- 50315 Anti-foul holder kit (for SBE 4 Conductivity Sensor) — installs on SBE 4 & SeaCATs (not SeaCATplus) to allow use of AF24173 in place of obsolete 24012 Anti-Foulant Devices. Order AF24173 separately. (see Application Note 70)
Compare Moored / Time Series Recording Instruments
(C, T, P)
|SBE 16plus V2 SeaCAT C-T (P) Recorder||C, T, P*||6 A/D; 1 RS-232||64 Mb||RS-232||Optional pump|
|SBE 16plus SeaCAT C-T (P) Recorder
||C, T, P*||4 A/D; optional RS-232 or PAR||8 Mb||RS-232 or -485||Replaced by SBE 16plus V2 in 2008|
|SBE 16 SeaCAT C-T (P) Recorder
||C, T, P*||4 A/D||1 Mb||RS-232||Replaced by SBE 16plus in 2001|
|SBE 16plus-IM V2 SeaCAT C-T (P) Recorder||C, T, P*||6 A/D; 1 RS-232||64 Mb||Inductive Modem||Optional pump|
|SBE 16plus-IM SeaCAT C-T (P) Recorder
||C, T, P*||4 A/D; optional RS-232 or PAR||8 Mb||Inductive Modem||Replaced by SBE 16plus-IM V2 in 2008|
|SBE 19plus V2 SeaCAT Profiler CTD||C, T, P||6 A/D;
|64 Mb||RS-232||Programmable mode — profiling or moored|
|SBE 19plus SeaCAT Profiler CTD
||C, T, P||4 A/D; optional PAR||8 Mb||RS-232||Replaced by SBE 19plus V2 in 2008|
|SBE 19 SeaCAT Profiler CTD
||C, T, P||4 A/D||1 - 8 Mb||RS-232||Replaced by SBE 19plus in 2001|
|SBE 37-SM MicroCAT C-T (P) Recorder||C, T, P*||8 Mb||RS-232 or -485|
|SBE 37-SMP MicroCAT C-T (P) Recorder||C, T, P*||8 Mb||RS-232, RS-485, or SDI-12||Integral pump|
|SBE 37-SMP-IDO MicroCAT C-T-DO (P) Recorder||C, T, P*||Integrated DO||8 Mb||RS-232 or -485||Integral pump; Replaced by SBE 37-SMP-ODO in 2014|
|SBE 37-SMP-ODO MicroCAT C-T-DO (P) Recorder||C, T, P*||Integrated Optical DO||8 Mb||RS-232, RS-485, or SDI-12||Integral pump|
|SBE 37-IM MicroCAT C-T (P) Recorder||C, T, P*||8 Mb||Inductive modem|
|SBE 37-IMP MicroCAT C-T (P) Recorder||C, T, P*||8 Mb||Inductive modem||Integral pump|
|SBE 37-IMP-IDO MicroCAT C-T-DO (P) Recorder||C, T, P*||Integrated DO||8 Mb||Inductive modem||Integral pump; Replaced by SBE 37-IMP-ODO in 2014|
|SBE 37-IMP-ODO MicroCAT C-T-DO (P) Recorder||C, T, P*||Integrated Optical DO||8 Mb||Inductive modem||Integral pump|
|SBE 37-SI MicroCAT C-T (P) Recorder||C, T, P*||8 Mb||RS-232 or -485|
|SBE 37-SIP MicroCAT C-T (P) Recorder||C, T, P*||8 Mb||RS-232 or -485||Integral pump|
|C, T, P*||Integrated DO||8 Mb||RS-232 or -485||Integral pump|
|SBE 39plus Temperature (P) Recorder||T, P*||64 Mb||Optional||USB & RS-232||Optional|
|SBE 39 Temperature (P) Recorder
||T, P*||32 Mb||Optional||RS-232||Optional||Replaced by SBE 39plus in 2014|
|SBE 39plus-IM Temperature (P) Recorder||T, P*||64 Mb||Inductive Modem & USB|
|SBE 39-IM Temperature (P) Recorder||T, P*||32 Mb||Inductive modem||Replaced by SBE 39plus-IM in 2016|
|SBE 56 Temperature Logger||T||64 Mb||USB|
|SBE 26plus Seagauge Wave & Tide Recorder||T, P||C optional||32 Mb||RS-232||
(tides, waves, & wave statistics)
|Wave & tide recorder|
|SBE 26 Seagauge Wave & Tide Recorder
||T, P||C optional||8 Mb||RS-232||Replaced by SBE 26plus in 2004|
|SBE 53 BPR Bottom Pressure Recorder||T, P||C optional||32 Mb||RS-232||Bottom pressure recorder|
|SBE 54 Tsunameter Tsunami Pressure Sensor||T, P||128 Mb||Optional||RS-232||Tsunami pressure sensor|
C = conductivity, T = temperature, P = pressure, DO = dissolved oxygen