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SBE 26plus Seagauge Wave and Tide Recorder
Configuration Details

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Brochure/specifications     Manual

Note: We do not publish prices on the website. Please contact us [seabird@seabird.com or (+1) 425-643-9866] for pricing.

Part # Description Notes
26plus SEAGAUGEplus Wave & Tide Recorder - With Digiquartz pressure sensor (45 psia standard; other ranges available), built-in temperature sensor, & 600 m plastic housing with battery compartment for 12 D cells. Includes 32 MB memory, RS-232 serial interface with ASCII real-time data output, frequency input channel for SBE 4M conductivity sensor, 2.5 m data I/O cable (801225), Seasoft for Waves software, & complete documentation. Specify: pressure sensor selection.
(for depths greater than 680 m, use SBE 53 BPR)		 Photos of standard shipment.

SBE 26plus is available with RS-485 interface in place of RS-232 interface; see RS-485 Serial Interface Option below.
SBE 26plus Pressure Sensor Range (approximate maximum depth) Selections -- MUST SELECT ONE Quartz or Strain Gauge Sensor
26p-1b 45 psia (20 m) Digiquartz pressure sensor - standard 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 45 psia (20 m) & 200 psia (130 m) sensors:
  • 45 psia sensor ‑
    initial accuracy is .003 m (= 0.01% * 45 psia * 0.689 m/psi)
  • 200 psia sensor ‑
    initial accuracy is 0.014 m (= 0.01% * 200 psia * 0.689 m/psi)
26p-1c 15 psia (1 m, for high altitude lake research) Digiquartz pressure sensor instead of 45 psia
26p-1d 23 psia (5 m) Digiquartz pressure sensor instead of 45 psia
26p-1e 30 psia (10 m) Digiquartz pressure sensor instead of 45 psia
26p-1f 100 psia (60 m) Digiquartz pressure sensor instead of 45 psia
26p-1g 200 psia (130 m) Digiquartz pressure sensor instead of 45 psia
26p-1h 300 psia (200 m) Digiquartz pressure sensor instead of 45 psia
26p-1i 400 psia (270 m) Digiquartz pressure sensor instead of 45 psia
26p-1j 1000 psia (680 m) Digiquartz pressure sensor instead of 45 psia (longer housing required)
SBE 26plus Substitute Strain Gauge Pressure Sensor Selections (Excellent wave measurements with 20 m sensor -- or low accuracy water level with other ranges) -- MUST SELECT ONE Digiquartz or Strain Gauge Sensor
26p-2a 20 m (30 dbar absolute) Druck strain gauge instead of Digiquartz sensor (CREDIT) Comparing strain gauge to Quartz pressure sensor specifications:
  • Accuracy -- 0.1% strain gauge vs. 0.01% Quartz
  • Repeatability -- 0.03% strain gauge vs. 0.005% Quartz
  • Hysteresis -- 0.03% strain gauge vs. 0.005% Quartz
  • Resolution -- strain gauge & Quartz resolution are equal

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 20 m (30 dbar absolute = 45 psia) & 100 m (110 dbar absolute = 600 psia) sensors:

  • 20 m (30 dbar absolute = 45 psia) sensor ‑
    initial accuracy is .03 m (= 0.1% * 45 psia * 0.689 m/psi)
  • 100 m (110 dbar absolute = 160 psia) sensor ‑
    initial accuracy is 0.11 m (= 0.1% * 160 psia * 0.689 m/psi)
26p-2b 100 m (110 dbar absolute) Druck strain gauge instead of Digiquartz sensor (not recommended for waves) (CREDIT)
26p-2c 350 m (350 dbar absolute) Druck strain gauge instead of Digiquartz sensor (not recommended for waves) (CREDIT)
26p-2d 600 m (600 dbar absolute) Druck strain gauge instead of Digiquartz sensor (not recommended for waves) (CREDIT)
SBE 26plus Conductivity Sensor Options
26p-3c Conductivity sensor (SBE 4M, titanium) - includes cable & mount, anti-foul holders & AF24173 anti-foulant devices


SBE 4M shown in aluminum housing;
SBE 4M in titanium housing similar
Standard 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-3d Delete Anti foulant holder & AF24173 from conductivity sensor option (CREDIT)

50315 --
slide Tygon on end of conductivity cell
When included with a 26plus, SBE 4M includes a 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 Wet-Pluggable Connector Options
26p-4a Wet-pluggable (MCBH) connectors instead of Standard (XSG & RMG) connectors on instrument & data I/O cable (optional conductivity sensor not installed) 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 our standard (Impulse XSG/RMG) connectors. Like standard connectors, wet-pluggables need proper lubrication & require care during use to avoid trapping water in sockets.
Both 26p-4 options include wet-pluggable bulkhead connectors on 26plus & data I/O cable compatible with wet-pluggable data I/O connector. Option 26p-4b also includes additional cost of wet-pluggable bulkhead connector on SBE 4M, & SBE 4M cable with wet-pluggable connectors on both ends.
   
26p-4b Wet-pluggable (MCBH) connectors instead of Standard (XSG & RMG) connectors on instrument & data I/O cable (including optional conductivity sensor)
SBE 26plus RS-485 Serial Interface Option
26p-5 RS-485 full duplex interface (6-pin connector) instead of standard RS-232 interface 26plus with optional 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. In comparison, 26plus with standard 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).
SBE 26plus High Accuracy External Temperature Interface Option
26p-6 High accuracy (0.002 C) external thermistor probe instead of standard internal thermistor Optional high accuracy external thermistor has 0.002 °C accuracy, 0.0001 °C resolution. In comparison, standard internal thermistor has 0.01 °C accuracy, 0.001 °C resolution.
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, Standard connector (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)
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 SBE 4M (option 26p-3c); this is spare.

171752 included if 26plus is ordered with SBE 4M (option 26p-3c) & wet-pluggable connectors (option 26p-4b); 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 (option 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 -- slide Tygon on end of conductivity cell
  
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.
  • SBE 4Ms shipped with optional Anti-Foulant Devices for moored applications before October 2002 used a smaller anti-foulant device inside Tygon tubing that attached to end of conductivity cell, & did not include 50315. For those SBE 4Ms, order 50315 & 801542 AF24173 Anti-Foulant Devices first time you need new Anti-Foulant Devices. Once you have 50315, order 801542 AF24173 Anti-Foulant Devices as needed.
  • SBE 4Ms shipped with optional Anti-Foulant Devices for moored applications after October 2002 include 50315 installed on SBE 4M. Order 801542 AF24173 Anti-Foulant Devices as needed.
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.

 

Product configuration options listing for all products

Additional cables, mount kits, and spares may be found at: Cables, Mount kits for Sea-Bird sensors, Mount kits for Third Party sensors, Spare parts

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