Sea-Bird Scientific SBE 25plus User Manual
  1. Manuals
  2. Brands
  3. Sea-Bird Scientific Manuals
  4. Data Loggers
  5. SBE 25plus
  6. User manual

Sea-Bird Scientific SBE 25plus User Manual

Hide thumbs Also See for SBE 25plus:
Table of Contents

Advertisement

Quick Links

Download this manual
SBE 25plus Sealogger CTD
Conductivity, Pressure, Temperature Recorder
Document No.
SBE25plus
Release Date:
2021-09-27
Version:
A
Firmware:
1.0 & up
Software:
Seasoft V2
User manual
425-643-9866
seabird.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SBE 25plus and is the answer not in the manual?

Questions and answers

Related Manuals for Sea-Bird Scientific SBE 25plus

Summary of Contents for Sea-Bird Scientific SBE 25plus

  • Page 1 User manual SBE 25plus Sealogger CTD Conductivity, Pressure, Temperature Recorder Document No. SBE25plus Release Date: 2021-09-27 Version: Firmware: 1.0 & up Software: Seasoft V2 425-643-9866 seabird.com...

  • Page 3: Table Of Contents

    Table of Contents Section 1 SBE 25plus quick start guide ..................3 Section 2 Specifications ........................5 2.1 Mechanical........................... 5 2.1.1 Dimensions..........................5 2.1.2 Connectors and cables......................5 2.2 Communications.......................... 8 2.3 Electrical............................8 2.4 Analytical............................8 Section 3 Overview ..........................9 3.1 Integration with other equipment for real-time data collection............
  • Page 4 Table of Contents Section 8 Reference: command descriptions ................41 8.1 Status............................41 8.2 General setup..........................46 8.3 Pump setup..........................46 8.4 Voltage sensor setup......................... 47 8.5 Serial sensor setup........................47 8.6 Real-time output setup....................... 48 8.7 Serial sensor setup........................49 8.8 Data upload..........................

  • Page 5: Section 1 Sbe 25Plus Quick Start Guide

    Section 1 SBE 25plus quick start guide This quick start guide gives the steps necessary to make sure that the SBE 25plus operates correctly and collects data before it is deployed. What's in the box: • CD or memory stick—has software, calibration files, documentation •...
  • Page 6 SBE 25plus quick start guide...

  • Page 7: Section 2 Specifications

    Section 2 Specifications 2.1 Mechanical Weight, 600 m, plastic, in air, water Weight, 6800 m, titanium, in air, water Cage, in air, water 20.0, 11.5 kg 22.5, 13.5 kg 6.7, 5.9 kg 2.1.1 Dimensions 2.1.2 Connectors and cables J3 auxiliary differential input 6, 7 Contact Function Contact...
  • Page 8 Specifications J2 auxiliary differential input 4, 5 Contact Function Contact Function MCBH6MP Common Voltage 5 signal Voltage 4 signal Voltage 5 common Voltage 4 common Auxiliary power out J1 auxiliary differential input 2, 3 Contact Function Contact Function MCBH6MP Common Voltage 3 signal Voltage 2 signal Voltage 3 common...
  • Page 9 Specifications Common Serial 2 data RX Serial 1 data RX Serial 2 data TX Serial 1 data TX Auxiliary power out J7 data I/O, pump, external power Contact Function Contact Function MCBH6MP Common Pump power common RS232 data RX Pump power RS232 data TX Auxiliary power in, 14–20 VDC...

  • Page 10: Communications

    Specifications 2.2 Communications Memory 2 GB Communication interface RS232 Data collection rate 16 Hz 2.3 Electrical Input from external power supply 14–20 VDC Current draw, operation (no auxiliary sensors or pump) 95 mA Current draw, pump 150 mA Current draw, communications 70 mA Current draw, low power (powered by internal batteries) 70 µA...

  • Page 11: Section 3 Overview

    Section 3 Overview The battery-powered 25plus measures temperature, conductivity, and pressure and supports up to 8 voltage-output sensors and 2 RS232 sensors. Components include: • SBE 3F temperature sensor • SBE 4C conductivity sensor • SBE 5 pump • Eight 16-bit A/D channels for auxiliary voltage output sensors for dissolved oxygen, pH, fluorescence, PAR, light transmission, turbidity, and other measurements •...
  • Page 12 Overview Figure 4 SBE 32 Figure 5 SBE 36...

  • Page 13: Integration With Other Equipment For Autonomous Operation

    Overview Figure 6 SBE 55 3.2 Integration with other equipment for autonomous operation The 25plus can be used with the SBE 32 with an Auto Fire Module (AFM) or an SBE 55. The AFM supplies voltage, logic, and control of the SBE 32. The AFM monitors the pressure data from the 25plus in real-time and closes the water sample bottles at user- specified depths or when the system is stopped for a specified period of time.
  • Page 14 Overview Figure 8 SBE 55...

  • Page 15: Section 4 Set Up Sensor And Verify Operation

    Section 4 Set up sensor and verify operation Set up the hardware and install the software to make sure that the 25plus functions correctly before deployment. Make sure that the sensor is connected to a power supply and PC through the serial connector on the supplied cable. Most PCs no longer have serial ports, and a serial-to-USB adapter is necessary.

  • Page 16: Software Menu Items

    Set up sensor and verify operation 4.1 Software menu items Note that the sensor will "time out" if it does not receive a command for two minutes. To start the sensor again, select Connect in the software Communications menu or push Enter.

  • Page 17: Prepare The 25Plus For Vertical Or Horizontal Deployment

    Set up sensor and verify operation 4.3 Prepare the 25plus for vertical or horizontal deployment The Sealogger is typically deployed in a vertical position. The manufacturer configures the pump and plumbing at the time of purchase, but the system can be changed as necessary. Make sure to attach the pump and plumbing correctly so that no air enters the pump.

  • Page 18: Horizontal Deployment

    Set up sensor and verify operation 4.3.2 Horizontal deployment ® • The manufacturer-supplied tubing is Tygon , with an inside diameter (ID) of 13 mm and an outside diameter (OD) of 19 mm (½ x ¾ in). • Put the DO sensor intake above the conductivity sensor exhaust. •...

  • Page 19: Battery Pack

    Set up sensor and verify operation Example, no auxiliary sensors: What is the maximum cable length needed to supply power to the 25plus with 20 gauge wire, with data transmitted in real- time? Current draw = 95 mA (data collection) + 150 mA (pump) + 70 mA (communications) = 315 mA ÷...
  • Page 20 Set up sensor and verify operation W A R N I N G If the user thinks that the alkaline batteries have leaks, pressure may have built up inside of the pressure housing. Follow ESD protocols to release internal pressure. Put on safety glasses and protective gloves and make sure that the sensor is pointed away from the body and other people.

  • Page 21: Plunger Switch

    Set up sensor and verify operation Auxiliary sensors, current draw Data collection current draw (T, C, P) = 95 mA = 0.095 A of 100 mA Pump current draw = 150 mA = 0.15 A Auxiliary sensor current draw = 100 mA = 0.10 A Maximum data collection time ~ 14 Ah ÷...
  • Page 22 Set up sensor and verify operation...

  • Page 23: Section 5 Deployment And Recovery

    Section 5 Deployment and recovery The SBE 25plus operates at 16 Hz, or 16 samples/second. The collected data is stored in its memory and then transmitted in real-time at 0.5–8 Hz to the connected PC. Each time the 25plus starts to collect data, it adds header information to the start of the data file, which includes the date and time that data collection started.

  • Page 24: Example Setup

    Deployment and recovery b. Make sure the "Historic rate" agrees with the SetHistoricRate= value in the 25plus. c. If an NMEA device is used, put a check in the box for "NMEA position data added" and specify if it is connected to a Deck Unit or a PC. d.

  • Page 25: Pump Operation

    Deployment and recovery Turn on the 25plus. Set date and time to UTC October 6, 2018 at 9:05 am. Erase all data in memory. Voltage sensors are connected on channels 0, 1, 2, 3. Look at data from all in real time. Transmit data in Seasave-compatible format. Set up with minimum conductivity frequency of 3000 Hz and turn on pump 60 seconds after the 25plus enters the water, to make sure that the pump is primed.

  • Page 26: Real-Time Data Collection

    Deployment and recovery The rate at which real-time data is transmitted varies from 0.5–8 Hz. The baud rate and the number of auxiliary voltage sensors has an effect on the transmission rate and transmission distance. The transmitted data is based on the values of SetBaudConsole= and SetVOut#=.

  • Page 27: Standard Output Format

    Deployment and recovery The Seasave software uses the real-time output rate from the .xmlcon configuration file for the 25plus. This must be the same as the output rate set by the sensor. The Data Processing software uses the information in the file header to get the sample rate from: •...
  • Page 28 Deployment and recovery b63–b32 cccccccc conductivity, Hz IEEE 754 format floating point, 32 bit b95–b64 00pppppp pressure raw ADC counts* b127–b96 00pppppp pressure raw ADC counts* temperature b143–b128 vvvv voltage input 0 = (code ÷ 2 ) × 5.000 b159–b144 vvvv voltage input 1 = (code ÷...

  • Page 29: Real-Time Data Collection With A Deck Unit

    Deployment and recovery 5.4.2 Real-time data collection with a Deck Unit Set the baud rate of the 25plus to 4800 if the 25plus is used with a Deck Unit: • SBE 36 CTD Deck Unit and Power and Data Interface Module (PDIM) •...

  • Page 30: Recover 25Plus From Deployment

    Deployment and recovery to put other sensors on the system so that they do not thermally contaminate the water that flows to the sensors and the T-C Duct inlet. If the water temperature at the deployment is very different from the temperature at which the 25plus has been stored, let it sit near the surface of the water for 3–5 minutes and then start the profile.

  • Page 31: Section 6 Transmit And Convert Data

    Section 6 Transmit and convert data Data that is collected and stored by sensors must be transmitted to a PC to process the data into a human-readable format. Use one of the methods below to transmit data from the sensor: •...

  • Page 32: Transmit Data With Usb

    Transmit and convert data • The software writes the data to the .xml or .txt file as applicable. • If "multiple files" was selected, the software does the sub-steps above for each deployment. When the data has been transmitted, the software shows the S> prompt. 10.

  • Page 33: Section 7 Maintenance

    Section 7 Maintenance 7.1 Corrosion precautions N O T I C E ™ ® Blue Moly and Dow Corning 4 lubricants are electrically conductive. Keep away from electrical components. Flush the 25plus with fresh water after each use and before it is stored. The stainless steel screws that connect the plunger switch to the end flange are ™...

  • Page 34: Conductivity Cell

    Maintenance Approximately one time each year, examine the pressure port for particles and debris. Flush the pressure port with warm de-ionized water to clean. 7.4 Conductivity cell N O T I C E Do not put a brush or any object inside the plumbing to clean it. The conductivity cells can be damaged, which changes the calibration.
  • Page 35 Maintenance 3. Push the quick disconnect lever to disconnect the conductivity cell from the main housing. 4. Remove the conductivity and temperature sensors from the main pressure housing. 5. Slowly rotate the temperature sensor guard counter-clockwise approximately 90 degrees. At the same time, rotate the C duct slightly clockwise. The Tygon tube that connects the ducts comes off the T duct.

  • Page 36: Replace Batteries

    Maintenance e. Align the Tygon tubing on the joint between the C duct and T duct. 11. Install the conductivity and temperature sensors and the mounting bracket on the main housing. 12. Connect the quick-release plug on the conductivity cell. 13.
  • Page 37 Maintenance ESD protocol • Put on protective eye wear before you open the pressure housing. • Any electrostatic charge on the body of the human operator must be released before the pressure housing is opened: put a hand on a grounded surface, or better, wear a grounded antistatic wrist strap. •...

  • Page 38: Clean Bulkhead Connectors

    Maintenance 3. Install the cover on the battery pack again: a. The cover fits into the battery pack only one way. The opening next to the USB mark must align with the USB connector in the battery pack. b. Tighten the cover until there is no gap between the bottom O-ring and the battery pack housing.
  • Page 39 Maintenance Any corrosion. Cracks, scratches, or other damage on the rubber pins or in the sockets. Separation of the rubber from the pins. Swelled or bulging rubber pins. 6. Use a silicone-based lubricant on each of the contacts of the bulkhead connector. The manufacturer recommends any of the products listed below.

  • Page 40: Examine O-Rings

    Maintenance 7.8 Examine O-rings N O T I C E Do not use petroleum-based lubricants on O-rings. It will cause damage to the O-rings. Damaged O-rings can cause the sensor to flood and make it unserviceable. Examine the O-rings on the sensor every time they are exposed—on the connector end flange and other parts.

  • Page 41: Temperature

    Data I/O cable, 20 m shielded, DN 32789 20200.0 USB-to-serial port adapter, FTDI UC232R-10 50508 SBE 25plus support kit—has spare communications cables, C, T sensor cable, pump-data Y-cable, connectors, dummy plugs, maintenance supplies and other mechanical spares 171883 Y-cable, pump-data I/O, DN 32896...
  • Page 42 30044 Sacrificial anti-corrosion zinc anode for aluminum housings and carousel frames 23155.1 Spare-replacement SBE 25plus CTD and SBE 17plus SeaRAM magnetic plunder switch 50366.0 ROV-AUV-custom integration TC carrier kit. Puts 3F and 4C into a single mountable unit (single line of 9 x 0.261-inch bolt holes with 0.375-inch spacing)

  • Page 43: Section 8 Reference: Command Descriptions

    Section 8 Reference: command descriptions The values of these commands are stored in the sensor until the user changes them. Notes about terminal commands are listed below. • Commands are not case-sensitive. Push Enter to store a command. • The sensor sends an error message if a command is invalid. •...
  • Page 44 Reference: command descriptions SetEnableSer2= <enableser2>1</enableser2> SetNameSer2= <nameser2>serial1</nameser2> SetBaudSer2= <baudser2>38400</baudser2> SetInlineSer2= <inlineser2>1</inlineser2> SetPromptSer2= <promptser2>S</promptser2> SetMeasStringSer2= <measstringser2>@</measstringser2> SetMeasIntervalSer2= <measintervalser2>0</measintervalser2> SetStartStringSer2= <setstartser2>fastmode</setstartser2> SetExecCharSer2= <execcharser2>13</execcharser2> SetTermCharSer2= <termcharser2>10</termcharser2> SetSuppressSer2= <suppressser2>1</suppressser2> SetTimeoutser2= <timeoutser2>4</timeoutser2> SetFailoutSer2= <failoutser2>4</failoutser2> </SerialPort2> <Settings> SetVAuxDelay0= <vaux0delay>0</vaux0delay> SetVAuxDelay1= <vaux1delay>0</vaux1delay> SetVAuxDelay2= <vaux2delay>0</vaux2delay> SetVAuxDelay3= <vaux3delay>0</vaux3delay> SetMinCondFreq= <mincondfreq>0</mincondfreq>...
  • Page 45 Reference: command descriptions GetSD Show status data Example, user entries in boldface: Notes • GetSD turns the pump on momentarily so the 25plus can measure and show the pump current draw. This will not cause damage to the pump. • If there are a large number of files in memory, it can take up to 45 seconds to complete the GetSD response.
  • Page 46 Reference: command descriptions Console Suppress—a termination character/prompt has been found but before it could be executed, more characters were sent. These characters were lost. Commands sent too quickly may be corrupted or ignored. Ser1 Suppress—a termination character/prompt has been found but before the string could be stored (once every 62.5 ms), more characters were sent.
  • Page 47 Reference: command descriptions InitHD Reset all user-selectable parameters that show in the GETHD response to the manufacturer-set defaults (not set). Requires confirmation. GetFiles Show the cast (.xml) and serial sensor (.txt) summary file names from the 25plus. Show all files in memory. There can be up to two file types in memory.

  • Page 48: General Setup

    Reference: command descriptions GetFault Show the fault condition of all auxiliary sensor channels. If a channel has a fault condition, turn the power off, then on to remove the fault. if a channel is in a fault condition at the start of a measurement, that channel is automatically turned off ro 0.625 seconds or SetVAuxDelay#= (# is 0, 1, 2, or 3 as applicable), which ever is larger, to try to remove the fault.

  • Page 49: Voltage Sensor Setup

    Reference: command descriptions Notes: • To test in dry conditions, make sure the plumbing is in a upright U position. Fill the internal plumbing with water through the pump exhaust so that there is enough water in the plumbing to prevent damage to the pump for a short period of operation. •...

  • Page 50: Real-Time Output Setup

    Reference: command descriptions SetMeasIntervalSer#=x Interval, in seconds, between each command string. Set by SetMeasStringSer#= to serial sensor during 25plus data collection. If SetMeasStringSer#=0, the 25plus sends a command string set by SetMeasStringSer#= as soon as it receives a response to the last command for data. SetStartStringSer#=x Command string, 0–32 characters, that the 25plus sends to the serial sensor for it to collect data autonomously during data collection.

  • Page 51: Serial Sensor Setup

    Reference: command descriptions SetOutputformat=x x=0: default. Format required for use with Seasave software. During data collection, transmit all T, C, P data and selected auxiliary voltage sensor data in real-time, at the baud rate set by SetBaudConsole=. Refer to the SetVOut commands below to select the voltage sensor channels from which to see output.

  • Page 52: Data Upload

    Reference: command descriptions StartNow Start the 25plus and data collection. Stop Stop data collection. The 25plus will go into a low power mode if no other commands are sent within 2 minutes. It may be necessary to send the Stop command more than one time. Notes: •...

  • Page 53: Calibration Coefficients

    Reference: command descriptions TSVR Supply power to all auxiliary voltage channels 0–7 and continuously measure and show raw counts. Push Esc to stop and remove power. Supply power to all auxiliary voltage channels 0–7 and continuously measure and show output voltages. Push Esc to stop and remove power.

  • Page 54: Hardware Configuration

    Reference: command descriptions SetTempA1=F F=pressure temperature a1 SetTempA2=F F=pressure temperature a2 SetPTCA0=F F=pressure temperature compensation ptca0 SetPTCA1=F F=pressure temperature compensation ptca1 SetPTCA2=F F=pressure temperature compensation ptca2 PTCB0=F F=pressure temperature compensation ptcb0 PTCB1=F F=pressure temperature compensation ptcb1 PTCB2=F F=pressure temperature compensation ptcb2 SetPOffset=F F=pressure sensor offset correction, decibars SetPFullScale=F...

  • Page 55: Section 9 Serial Sensor Integration

    Section 9 Serial sensor integration The SBE 25plus can support two serial sensors, Ser1 and Ser2, each with individual control and configuration parameters. Each sensor must use RS232, with TX, RX, and I/O communications with the 25plus. Data can be collected asynchronously or on-demand. Data is stored by the 25plus as either part of the system data (SetInlineSer#=Y) or as its own file (SetInlineSer#=N).

  • Page 56: Set Up And Store Data For Unknown Serial Sensor

    Serial sensor integration 9.1.1 Set up and store data for unknown serial sensor The 25plus can support a number of serial sensors, but some setup is necessary because third-party sensors may have different communication parameters. The 25plus has the capability to calculate and store setup parameters, so that when the work of setup is complete, a third-party sensor can be moved between the serial channels of the 25plus, or to other sensors with an equivalent type of serial measurement.

  • Page 57: Set Up And Store Triplet Data

    Serial sensor integration Data stored in a standalone file is useful if there are third-party tools to read and do an analysis on the stored serial data. The file is named with the data and time at the start of the cast, and the user-entered name from SetNameSer#=.

  • Page 58: Set Up And Store Suna Data

    Serial sensor integration 4. Send the setup commands from the table above to #=1 or #=2, the serial port on the 25plus that the sensor is connected to. 5. Set up the sensor to store data inline, in the 25plus .xml file, or standalone, in a .txt file.

  • Page 59: High Current-Draw Sensor Integration

    Serial sensor integration 4. To see total absorbance, put a check in the box next to "Display Total Absorbance" and push Browse to select the calibration (.cal) file. 5. Push OK. The software will show a plot of the data. 9.1.5 High current-draw sensor integration The 25plus can supply up to 1.2 A at 12.5 V to the four auxiliary voltage sensor connectors (J0, J1, J2, J3) and the auxiliary serial sensor connector at J6.
  • Page 60 Serial sensor integration...

  • Page 61: Section 10 Troubleshooting

    Section 10 Troubleshooting 10.1 No communications with sensor The S> prompt shows that there is communication between the sensor and PC. Select Connect in theSeaterm232 Communications menu again, or push Enter several times. Cause: The I/O cable is not connected correctly. Solution: Make sure that the cable is connected at the PC and the sensor.

  • Page 62: Cannot Use The Usb To Communicate

    Troubleshooting Solution: Correct the settings in the 25plus so that they agree with the Configuration sheet. For serial sensors, connect the sensor directly to a PC and use Seaterm232 or Seaterm to verify the calibration coefficients agree with the calibration sheet of the sensor.

  • Page 63: Section 11 General Information

    Section 11 General information Revised editions of this user manual are on the manufacturer's website. 11.1 Service and support The manufacturer recommends that sensors be sent back to the manufacturer annually to be cleaned, calibrated, and for standard maintenance. Refer to the website for FAQs and technical notes, or contact the manufacturer for support at support@seabird.com.
  • Page 64 General information...
  • Page 66 Sea-Bird Electronics 13431 NE 20th Street Bellevue WA 98005 U.S.A. (425) 643-9866 © Sea-Bird Electronics, Inc., 2021. All rights reserved. Printed in USA. *SBE25plus*...

Table of Contents