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Plot39© is used to plot ASCII data (.asc file) that has been uploaded from the SBE 39plus, 39, or 39-IM. Plot39 is part of our Seasoft V2 software suite.

Plot39 Features

Plot39 plots data that has been uploaded from the SBE 39plus, 39 , 39plus-IM, or 39-IM:

  • Plots the data in color. The plot can be saved as a graphic file for presentation.
  • Improves display speed with data culling. Plot39 plots every Nth data value, where N is dependent on the number of data values to be displayed and the width of the display rectangle in pixels.
  • Allows axis and font sizes to be easily changed.
  • Allows a section of a plot to be magnified to reveal more detail.

Online Help is available with Plot39.

Plot39 was written for use on systems running Windows 7/8/10 (both 32-bit and 64-bit systems).

If you discover reproducible bugs in Plot39, please document the steps taken to achieve them and send a report to We welcome any suggestions for new features and enhancements.

Plot39 1.00c

August 29, 2011
File Plot39_V1_00c.exe for Windows 7/8/10

Version 1.00c
29 August 2011

a. Help file will now launch if using Windows 7.

I am confused by all these software names. Which software does what?

Sea-Bird’s main software package is called Seasoft©.

  • Seasoft V2 — Seasoft V2 is actually a suite of stand-alone programs. You can install the entire suite or just the desired program(s).

  • Deployment Endurance Calculator — calculates deployment length for moored instruments, based on user-input deployment scheme, instrument power requirements, and battery capacity.
  • SeatermV2 — terminal program launcher that interfaces with Sea-Bird instruments developed or redesigned in 2006 and later, which can output data in XML. Can be used with SBE 16plus V2, 16plus-IM V2, 19plus V2, 25plus, 37 (SI, SIP, SM, SMP, IM, IMP, all with firmware 3.0 and later), 37 with oxygen (SIP-IDO, SIP-ODO, SMP-IDO, SMP-ODO, IMP-IDO, IMP-ODO), 39plus, 54 and PN 90588, 56, 63, and Glider Payload CTD. SeatermV2 provides setup, data retrieval, and diagnostic tests.
  • Seaterm — terminal program that interfaces with most older Sea-Bird instruments, providing setup, data retrieval, and diagnostic tests.
  • SeatermAF — terminal program that interfaces with instruments that provides auto-fire capability for autonomous operation of an SBE 32 Carousel Water Sampler (with an SBE 17plus V2 or AFM) or SBE 55 ECO Water Sampler, providing setup, data retrieval, and diagnostic tests.
  • Seasave V7 — acquires, converts, and displays real-time or archived data. Seasave V7 is an entirely new version of Seasave, officially released March 2007.
  • SBE Data Processing — converts, edits, processes, and plots data; some of SBE Data Processing’s most commonly used modules include Data Conversion, Bottle Summary, Align CTD, Bin Average, Derive, Cell Thermal Mass, Filter, and Sea Plot.
  • Plot39 — plots ASCII data that has been uploaded from SBE 39plus, 39, or 39-IM Temperature Recorder or SBE 48 Hull Temperature Sensor.
  • Seasoft for Waves
    Provides setup, data retrieval, data processing, auto-spectrum and time series analysis, statistics reporting, and plotting for the SBE 26 and SBE 26plus Seagauge Wave & Tide Recorder. Also provides setup, data retrieval, data processing, and plotting for the SBE 53 BPR Bottom Pressure Recorder.

Additional software is available to simplify use of coastal instruments:

Can I install my Sea-Bird CD-ROM on multiple computers or give it to another interested scientist?

You are free to install the software on multiple computers and to give the software to any interested potential user.

Sea-Bird's Seasoft© software is provided free of charge to Sea-Bird users and is not subject to any license. Seasoft is protected by copyright laws and international copyright treaties, as well as other intellectual property laws and treaties. All title and copyrights in and to Seasoft and the accompanying printed materials, and any copies of Seasoft, are owned by Sea-Bird Electronics. There are no restrictions on its use or distribution, provided such use does not infringe on our copyright.

The software is posted on our website, and anyone can download it.

What operating systems are compatible with Seasoft?

Current Sea-Bird software was designed to work on a PC running Windows 7/8/10 (both 32-bit and 64-bit). Sea-Bird provides the software free of charge as part of our instrument support. Because of this, we do not have the resources to write and provide support software for other operating systems, such as Apple, Unix, or Linux.

  • If you have a valid PC emulator on your system, the Sea-Bird software may run, but we have no way to confirm this, or that the I/O connections to the instrument will properly function.
  • If you have access to a PC running Windows, you can use Sea-Bird’s software to convert the data from our proprietary format to ASCII (in engineering units of C, T, P, etc. with calibration coefficients applied); then you could use your own software on a different computer to perform additional processing.