POSEIDON M28 User Manual
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POSEIDON M28 User Manual

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POSEIDON M28
USER MANUAL 1.2
fw version 1.8

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Summary of Contents for POSEIDON M28

  • Page 1 POSEIDON M28 USER MANUAL 1.2 fw version 1.8...

  • Page 2: Table Of Contents

    Table of Contents Table of Contents Conventions Used in this Guide Preface Chapter 1 Preparation An overview of the M28 Charger cable Charging Long-term storage Dive log data Wi-Fi connection O-ring care and maintenance Chapter 2 Assembly Bungee cord preparation...
  • Page 3 CONFIGURING GASES IN OC MODE GAS SELECTION IN OC MODE DECOMPRESSION MODEL SELECTION M28 CLOSED CIRCUIT MODE MENU M28 CLOSED CIRCUIT MODE AFTER DIVE START SE7EN CLOSED CIRCUIT MODE MENU SE7EN CLOSED CIRCUIT MODE AFTER DIVE START GAUGE MODE Center circle...
  • Page 4 Map app Picture app Planner app Chapter 4 Wi-Fi Access Point HOME DIVE LOG REDBOX LOG PICTURE SCREEN DUMP FIRMWARE UPDATE SYSTEM Appendix 1 Symbols Appendix 2 Connectivity example to Rebreather Support and Feedback page...

  • Page 5: Conventions Used In This Guide

    This User Guide is NOT intended for use as a training manual, or in any way as a substitute for proper training through a legitimate training agency approved by Poseidon AB. It is only intended to provide basic information concerning the Poseidon M28.
  • Page 6 The Poseidon M28 is an advanced dive computer, which functions in a manner distinctly different from traditional dive computers. Do not attempt to use the Poseidon M28 without a thorough and complete working knowledge of the material contained in this manual. Careless use of the Poseidon M28 can lead to decompression sickness or death in any environment without any prior warning symptoms.

  • Page 7: Preface

    Congratulations on your decision to purchase the Poseidon M28 dive computer. The Poseidon M28 design includes several fundamental improvements over previous dive computer designs. International design registration (WIPO) DM/093447 for design of computer M28, CPOD and graphic interface. Features: ●...

  • Page 8: Chapter 1 Preparation

    Chapter 1 Preparation This chapter describes the steps to assemble and prepare the Poseidon M28 for diving. The M28 is a modular device with sub systems. Box content: • M28 computer • Quick reference guide • Charger cable • Travel pouch •...

  • Page 9: An Overview Of The M28

    An overview of the M28 The figure illustrates these locations and the main features of the Poseidon M28. The “back” of the M28 is the side opposite to the display side. Following is a brief description of each of the major components.

  • Page 10: Charger Cable

    Charger cable The M28 charger cable has a standard USB connector on one end, and a custom submarine connector for the M28 on the other. To charge the M28, simply remove the cable connector plug using a 15mm tool, insert the connector from the charger cable, and hand tighten the nut.

  • Page 11: Charging

    Once the M28 is connected to a power source through the USB charging cable, the charging symbol will be visible in the upper right corner of the display, and the battery icon will show as green. The M28 is fully charged once the battery icon shows the state of charge as 100% and the battery icon turns white.

  • Page 12: O-Ring Care And Maintenance

    The M28 is an access point and can be reached through a standard web browser. Once enabled, the Wi-Fi will be enabled until it's turned off. The icon will flash until a device is connected. O-ring care and maintenance The Poseidon M28 is a computer-controlled precision underwater instrument.

  • Page 13: Chapter 2 Assembly

    Make sure that cable or plug connection is properly tightened. The Poseidon M28 is a very powerful life-support system that offers an unprecedented new experience in recreational or technical diving. But it is also a complex, high-technology device that includes sensors and firmware that need to operate reliably in an underwater environment, for the important purpose of keeping a diver safe and up to date with accurate information.

  • Page 14: Bungee Cord Preparation

    Bungee cord preparation Example of how the bungee cord can be attached.

  • Page 15: First Start Up

    To start the M28 press both buttons simultaneously and hold for three seconds. Once the M28 has been started, the green indicator light will flash to indicate that the M28 computer is turning on. This will be followed by a start-up screen with a visible Poseidon logo. Please note that the time to visible start-up screen can vary in length.

  • Page 16: Button Function

    Button function Once the M28 is fully powered up, it is ready to use. To operate and access functions, use the two buttons. The interface is very intuitive to use and is described in the figure below. Press both buttons simultaneously to enter the menu system, then scroll up or down and press both buttons again to select the highlighted option.

  • Page 17: Monitoring The Display

    Poseidon M28 divers understand how to read the information contained in the Display, particularly concerning various alarm conditions. Before even turning the Poseidon M28 on, it is useful to understand the general layout of the Display, and the logic behind how the information is organized.

  • Page 18: The Menu System

    The menu system Most of the features and functionality of the M28 are accessed through the menu system. To activate the menu system, simply press both buttons. The menu now becomes visible, the top 3 selections are always the same, starting with “Exit menu”...

  • Page 19: Settings

    The power menu allows you to turn off the device or reboot the device after a firmware update. Pressing both buttons on one of these menu items will power off the M28 (and reboot to install new firmware, if selected). If the unit does not power off after a 1 minute, it is also possible to force a power off by holding both buttons pressed for more than 8 seconds.

  • Page 20: Backlight Control

    To communicate with the M28 from any other device you need to turn on the Wi-Fi AP (Access Point). This function is primarily used when you need to update firmware or when you upload or download data to or from the M28. Pressing both buttons on this menu item will toggle this feature between OFF (default) and ON.
  • Page 21 The screen will not dim during pre-dive-test view. When the screen has been dimmed, the next button press will restore the screen brightness, but will not otherwise affect the M28. The backlight level that the screen will dim to when the timeout value has expired. When dim value 0 is used, the display will turn off completely after the "Dim screen"...
  • Page 22 Switch temperature between celsius (metric) or fahrenheit (imperial) units to be displayed. Switch depth between meters (metric) or feet (imperial) units to be displayed. Switch pressure between Bar (metric) or PSI (imperial) units to be displayed. Switch tank volume between liter (metric) or cubic feet (imperial) units to be displayed. This is a quick way to configure the unit to be used in Metric (EU) or Imperial (US) mode.

  • Page 23: Chapter 3 Display

    Chapter 3 Display Top bar The top bar is shown in all apps and indicates the selected app, connecting status, clock and status of the battery.

  • Page 24: System App

    System app The System app provides useful information concerning the M28 computer and its hardware. The information provided is information that Poseidon might need in case of contact concerning performance issues with the product. Under 'System' the following information can be found: ●...

  • Page 25: System App - Menu Tree

    System app - menu tree The figure below illustrates the menu tree underneath the “System” app. The various functions in the menu allow you to force update of firmware in other connected Poseidon products and edit registers in connected units.

  • Page 26: Force Fw Update

    The force firmware update should be used with great caution. Use this feature only if a previous update failed and/or one of the components is not functioning properly. Update CAN enabled Poseidon products To access and use the forced firmware update function use the buttons and select the “System” app. Once in the app press both buttons to access the system menu.
  • Page 27 Select this option if you want to update the firmware in the CPOD. Once you select to update a certain part of the system a firmware update window will be visible on the M28 so you can follow the update procedure. If you want to abort an ongoing update procedure, simply press both buttons on the M28.

  • Page 28: Land App

    Land app The Land app gives information valuable to the diver after or prior to the dive, and is the default app when the M28 is first powered up. If the unit is powered up connected to the SE7EN it will switch directly to the SE7EN app after powerup.

  • Page 29: Dive App

    Most of the visible content of the land mode is static but the center icon and stop watch can be used. To alter the center clock to show compass, simply use either button to alter between clock or compass. To use the stopwatch, press both buttons simultaneously and select stopwatch.
  • Page 30 Center overlay box...
  • Page 31 Pre-breathe with countdown in seconds. For more information about pre-breathe, see the Rebreather manual. The firmware in the connected unit is not matching the version used in the M28 unit. Update the firmware from the M28 by selecting the menu "Firmware update" located in the end of the dive menu list.
  • Page 32 When the user has selected to update firmware this screen will appear and inform of the firmware update progress status.

  • Page 33: Open Circuit (Oc) Mode Menu

    The M28 computer contains a powerful Open Circuit mode dive computer that handles decompression and multiple gases. To select the M28-OC mode, press both buttons to enter the menu system. Select Apps and then further Dive. Once in Dive, select Dive mode and M28-OC. The computer is now set into OC mode.

  • Page 34: Open Circuit (Oc) Mode After Dive Start

    OPEN CIRCUIT (OC) MODE AFTER DIVE START After "Dive Start" shows the menus that are relevant for the current dive mode.

  • Page 35: Configuring Gases In Oc Mode

    DECOMPRESSION MODEL SELECTION As previously mentioned the M28 computer is equipped with two different decompression algorithms. DCAP and Bühlmann ZHL16C. To define the algorithm of use simply enter the dive config menu and select Deco. Once in the Deco menu you can either select DCAP or Bühlmann.

  • Page 36: M28 Closed Circuit Mode Menu

    M28 CLOSED CIRCUIT MODE MENU In M28 Closed Circuit mode the M28 will guess the gas mixture that the diver is breathing based on the settings selected. If a CPOD with an oxygen sensor is connected and mounted on the loop the decompression model will use this as input.

  • Page 37: M28 Closed Circuit Mode After Dive Start

    M28 CLOSED CIRCUIT MODE AFTER DIVE START After "Dive Start" shows the menus that are relevant for the current dive mode.

  • Page 38: Se7En Closed Circuit Mode Menu

    SE7EN CLOSED CIRCUIT MODE MENU Please refer to the comprehensive Appendix 3 of the SE7EN Manual. The figure below shows the menu system related to the M28 SE7EN mode. Only available when SE7EN is connected.

  • Page 39: Se7En Closed Circuit Mode After Dive Start

    SE7EN CLOSED CIRCUIT MODE AFTER DIVE START After "Dive Start" shows the menus that are relevant for the current dive mode.

  • Page 40: Gauge Mode

    GAUGE MODE The Gauge mode will give the diver depth and time information, similar to a bottom timer. The stopwatch functionality is exactly the same as in Land mode. NOTE! The decompression algorithm is disabled in this mode. WARNING: The decompression algorithm is disabled in this mode.

  • Page 41: Center Circle

    Center circle Center circle options. Each center area has a specific purpose and all center circles are not used in all modes.
  • Page 42 Clock.​ Showing the same time and time zone like in the Top Bar. Adjustments of clock are made in settings. ppO2 gauge. Will show one or more ppO2 NEEDLES depending on the number of oxygen sensors connected. Long white needle for the main sensor, gray tip for secondary sensor, blue tip for the third sensor. Setpoint is always pointing up to the red marker.
  • Page 43 Setpoint.​ Displays the current Set point high and Set point low. Settings made in Dive mode. Here is an example of a sliding setpoint used by the M28 and SE7EN. Compass and Gyro.​ Displays compass direction and Gyro positioning. The compass is tilt independant.
  • Page 44 Change pressure unit and volume unit in Settings. Battery status. Displays the battery status (% charged battery). If a SE7EN is connected, the M28 also displays the SE7EN battery status. The battery icon in the Top Bar always shows the device whose battery status is the lowest.
  • Page 45 Temperature. Displays the temperature status in water when you dive. If SE7EN is connected also displays the temperature in your breathing loop. You can change what is displayed between Celsius and Fahrenheit in "Settings/Temperature" unit.

  • Page 46: Dive Log App

    Dive log app The M28 contains a log viewer where you can look at your recent dives. Each log has an index number, dive time and max depth displayed in the lower left corner. To change between the stored logs use the buttons on the M28.

  • Page 47: Map App

    Map app The M28 dive computer contains a GPS receiver that can give your exact position while on land. The M28 contains a preloaded world map and gives you your position in Latitude / Longitude, using the WGS84 datum, including accurate time and date.

  • Page 48: Picture App

    Picture app The M28 includes a picture app that allows you to easily view stored pictures and other information. You can upload or remove pictures from a PC/Smartphone in the web interface when M28 is connected by Wi-Fi. Press up or down button to view the next or previous picture.

  • Page 49: Planner App

    Planner app The planner is a useful tool that gives an understanding of the profile of a certain dive based on profile and mode (OC or CC). Simply press both buttons and select/define dive prerequisites and desired mode. The computer will then calculate a dive profile based on the parameters.

  • Page 50: Chapter 4 Wi-Fi Access Point

    Chapter 4 Wi-Fi Access Point HOME To connect the M28, enable Wi-Fi on the M28 and connect to a PC/Mac or other device. ● Wi-Fi name: M28-xxx (where xxx is the number of the device) ● Password: matterhorn ● To access the home URL open a web browser and type http://192.168.7.1...

  • Page 51: Dive Log

    RbConfig. Simply go to the Dive Log tab and download the desired logs to your local PC/Mac. Under the “Dive Log” you can find all dive logs stored on the M28. The dive log...

  • Page 52: Redbox Log

    REDBOX LOG Just like the dive log the redbox log contains dive data but also more detailed data that logs all events from when the unit is turned on until it's turned off. The main purpose of this data is for customer support, quality and contains no user data.

  • Page 53: Picture

    PICTURE In the picture tab it’s easy to manage the pictures you want to store on your M28. Simply browse and upload images or delete unwanted images by pressing the delete button. Please note that a deleted picture will be lost and can not be...

  • Page 54: Screen Dump

    SCREEN DUMP It is sometimes useful to capture an image of the M28 (e.g., to provide to Poseidon technical support). When the M28 is connected to a PC/Mac or other device through the Wi-Fi, select the “Screen Dump” option...

  • Page 55: Firmware Update

    FIRMWARE UPDATE When the M28 is connected to a PC/Mac or other device through the Wi-Fi, the firmware on the M28 can be updated. Select the firmware tab and press the “Browse” button to select the correct firmware file on your PC/Mac or other device.

  • Page 56: System

    SYSTEM The system option allows you to turn the M28 power off, or reboot the M28 (e.g., to install new firmware).

  • Page 57: Appendix 1 Symbols

    Appendix 1 Symbols...

  • Page 59: Appendix 2 Connectivity Example To Rebreather

    Appendix 2 Connectivity example to Rebreather...

  • Page 60: Support And Feedback Page

    Support and Feedback page If you need support or have feedback with any suggestions regarding functions, display views etc. Please email them to support@poseidon.com...
  • Page 61 Poseidon Diving Systems AB Åkeredsvägen 1, SE-421 63 Västra Frölunda, Sweden Phone: +46 31 734 29 00 E-mail: info@poseidon.com www.poseidon.com...

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