Suunto EON User Manual
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Suunto EON User Manual

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SUUNTO EON STEEL BLACK
USER GUIDE 3.0
2022-03-07

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  • Page 1 SUUNTO EON STEEL BLACK USER GUIDE 3.0 2022-03-07...

  • Page 2: Table Of Contents

    4.8. Compass............................18 4.8.1. Calibrating compass......................19 4.8.2. Setting declination......................19 4.8.3. Locking the bearing......................20 4.9. Customizing dive modes with Suunto app................21 4.10. Decompression algorithms......................21 4.10.1. Suunto Fused™ RGBM 2 algorithm................21 4.10.2. Bühlmann 16 GF algorithm.................... 22 4.10.3.
  • Page 3 5.3. How to set language and unit....................48 5.4. How to set time and date......................48 5.5. How to install and pair a Suunto Tank POD................49 5.6. How to plan a dive using the Dive planner................52 5.7. How to customize dive modes with Suunto app..............53 5.8.
  • Page 4 Suunto EON Steel Black 6.3. Changing strap to bungee......................58 6.4. Charging battery..........................58 6.5. Getting support..........................58 6.6. Disposal and recycling.........................59 7. Reference..............................60 7.1. Technical specifications.........................60 7.2. Compliance............................63 7.3. Trademark............................63 7.4. Patent notice............................63 7.5. International Limited Warranty....................63 7.6.

  • Page 5: Intended Use

    It also helps the diver to plan the dive and to follow through the dive plan. Suunto EON Steel Black can be used as a standalone product or in combination with the Suunto Tank POD, which measures the tank pressure and transmits the pressure reading information to the Suunto EON Steel Black dive computer.

  • Page 6: Safety

    At the dive site, perform your manual pre-checks on each device before entering the water. Dive computer pre-dive safety check Ensure that: 1. Suunto EON Steel Black is in the correct dive mode and the display is working as expected. 2. Altitude setting is correct.
  • Page 7 9. All primary and backup gauges for time, pressure and depth, both digital and mechanical, are showing correct, consistent readings. 10. If Suunto Tank PODs are in use, check that the Tank PODs are properly installed and the tank valve is open. Please see the Suunto Tank POD User Guide for detailed information and proper use.
  • Page 8 The demands of commercial or professional diving may expose the diver to depths and conditions that tend to increase the risk of decompression sickness (DCS). Therefore, Suunto strongly recommends that the device not be used for any commercial or professional diving activities.
  • Page 9 Suunto EON Steel Black WARNING: Do not disassemble or remodel Suunto USB Cable in any way. Doing so may cause an electric shock or fire. WARNING: Do not use Suunto USB cable if cable or parts are damaged. WARNING: You must only charge your device using USB adapters that comply with the IEC 62368-1 standard and have a maximum output of 5 V.

  • Page 10: Getting Started

    3. Getting started 3.1. Device setup To get the most out of your Suunto EON Steel Black, use some time to customize features and displays. Make absolutely sure that you know your computer and have it set up as you want before getting into the water.

  • Page 11: Icons

    Suunto EON Steel Black By default Suunto EON Steel Black has four main dive modes: Air/Nitrox, Trimix, CCR and Gauge. Press and hold the middle button to enter Main menu and select the appropriate mode for your dive under Dive settings » Mode.

  • Page 12: Product Compatibility

    You can pair your dive computer with the Suunto app over Bluetooth. You can transfer your dive logs to Suunto app from the dive computer and analyze them on your mobile phone. It is also possible to customize dive modes and change dive computer settings via Suunto app.

  • Page 13: Features

    4. Features 4.1. Alarms, warnings, and notifications Suunto EON Steel Black has color-coded alarms, warnings and notifications. They are shown prominently on the display with an audible alarm (if tones are on). Alarms are always red. Warnings may be red or yellow. Notifications are always yellow.
  • Page 14 Suunto EON Steel Black Warning Explanation Depth Depth exceeds your depth alarm limit Dive time Dive time exceeds your dive time alarm limit Diluent high pO₂ Diluent partial pressure of oxygen exceeds safe level (>1.6); no immediate danger unless diluent is used, e.g.

  • Page 15: Altitude Diving

    This 'additional' nitrogen is released gradually over time and equilibrium is restored. Suunto recommends that you acclimatize to a new altitude by waiting at least three hours before making a dive.

  • Page 16: Battery

    Battery is charging, showing current charge level as remaining dive time A pop-up message indicates when recharge is needed. 4.5. Bookmark Adding a bookmark (timestamp) to an active log is really easy in Suunto EON Steel Black. See 5.9. How to add bookmarks for the procedure.

  • Page 17: Ceiling Broken

    In such event, you should descend below the ceiling level to continue the decompression. If you fail to do so within three (3) minutes, Suunto EON Steel Black locks the algorithm calculation and displays Locked instead, as shown below. Note that the ceiling value is no longer present.

  • Page 18: Clock

    After the message disappears, the planner can be used as usual. 4.7. Clock Suunto EON Steel Black's time and date settings are found under Device settings. Time and date formats are found under Units & formats. For setting, see 5.4. How to set time and date.

  • Page 19: Calibrating Compass

    When you first start using Suunto EON Steel Black, and after each charging, the compass needs to be calibrated and it is required to do so to activate it. Suunto EON Steel Black displays the calibration icon when you enter the compass view.

  • Page 20: Locking The Bearing

    To set a bearing lock: 1. Press the middle button to change to the compass view. 2. Hold your Suunto EON Steel Black in level in front of you, with the top pointing in the direction to your target. 3. Keep the lower button pressed until you see the Bearing locked notification.

  • Page 21: Customizing Dive Modes With Suunto App

    Suunto EON Steel Black 4.9. Customizing dive modes with Suunto app You can easily customize device and dive settings, such as dive modes and views with Suunto app. Create up to 10 different dive modes with up to four custom views each.

  • Page 22: Bühlmann 16 Gf Algorithm

    The advantage of Suunto Fused™ RGBM 2 is additional safety through its ability to adapt to a wide variety of situations. For recreational divers it may offer slightly longer no- deco times, depending on the chosen personal setting.
  • Page 23 At this point you can come back to the surface and finish your dive. The default setting of Suunto's Bühlmann 16 GF dive algorithm is 30/70. All values other than the default values are out of recommendation. If you modify the default values, the value number turns red and a warning appears on the screen.

  • Page 24: Diver Safety

    If GF High % is set to a lower value, the diver spends more time in shallow water and total dive time gets longer. If you want to see the comparison of the Suunto Fused™ RGBM 2 algorithm and the Bühlmann 16 GF algorithm, go to suunto.com/support.

  • Page 25: Oxygen Exposure

    4.11. Decompression dives When on a decompression (deco) dive you exceed the no decompression limit, Suunto EON Steel Black provides the decompression information required for ascent. Ascent information is...
  • Page 26 An audible alarm and a downward pointing red arrow in front of the ceiling depth value indicate unsafe decompression. If you ignore the alarm and stay above the safe margin for three minutes, Suunto EON Steel Black locks the algorithm calculation, and decompression information will not be...
  • Page 27 Suunto EON Steel Black Decompression display examples Suunto EON Steel Black shows the ceiling value always from the deepest of these stops. In the below display, the ceiling depth is set to 17.1 m and the diver is currently at 17.1 m. White arrows beside the ceiling depth value show the diver is inside the decompression window.

  • Page 28: Last Stop Depth

    It all comes down to proper control of the expanding gas during an ascent. This is why all Suunto RGBMs use a maximum ascent rate at 10 m/minute, which has proven over the years to be an effective protective measure.

  • Page 29: Device Info

    EON Steel devices with software update 2.5. 4.13. Device info Information about your Suunto EON Steel Black can be found in your device. This information includes device name, serial number, software and hardware versions and radio compliance information. See 5.1. How to access device info.

  • Page 30: Dive History

    Suunto EON Steel Black 4.15. Dive history Dive history is a summary of all the dives done with your Suunto EON Steel Black. The history is divided according to the dive type used for the dive. Each dive type summary includes the number of dives, cumulative dive hours and maximum depth.

  • Page 31: Trimix Mode

    No deco • Compass • NOTE: In Trimix mode, Suunto EON Steel Black has the multiple gases option automatically turned on. NOTE: When diving with helium activated, deepstop is on by default, and it cannot be turned off. 4.16.3. CCR mode...

  • Page 32: Gauge Mode

    NOTE: When diving with helium activated, deepstop is on by default, and it cannot be turned off. 4.16.4. Gauge mode Use Suunto EON Steel Black as a bottom timer with Gauge. Gauge mode is a bottom timer only. It does not use any decompression algorithm, thus it does not include decompression information or calculations.

  • Page 33: Dive Planner

    SuuntoTankPodSafety. 4.19. Flip display You can flip the display of Suunto EON Steel Black to have the buttons on either the left or right side of the dive computer, making it easier to wear on either arm. Change the button orientation under General » Device settings » Flip display.

  • Page 34: Gas Mixtures

    Gas consumption rate is measured in liters per minute (cubic feet per minute). This is an optional field and needs to be added to your custom dive mode views in Suunto app. In the classic view below, gas consumption rate is in the bottom right corner.

  • Page 35: Gas Time

    Gas time information is visible in Air/Nitrox and Trimix dive modes by default. If you have not paired a Suunto Tank POD, the gas time field shows n/a. If you have paired a POD but there is no data being received, the field shows –. This may be because the POD is not in range, the tank is closed, or the POD battery is low.

  • Page 36: Logbook

    4.25. Multi-gas diving Suunto EON Steel Black allows gas changes during a dive between the gases defined in the Gases menu. When ascending, you are always notified to change gases when a better gas is available.

  • Page 37: Modifying Gases During A Dive

    In another case, if for some reason you run out of gas and need to use a gas mixture from a dive buddy, it is possible to adapt Suunto EON Steel Black to the situation by adding the new gas mixture to the list. Suunto EON Steel Black re-calculates decompression and shows the correct information.

  • Page 38: Oxygen Calculations

    2. Geometric mean of the partial pressure change of N2 and partial pressure change of He is bigger than 0.35 bar. If these limits are exceeded with a gas switch, Suunto EON Steel Black indicates the risk of ICD as shown below: In this example, the available gas mixtures for a deep trimix dive are: Trimix 15/55, MOD 76.7 m (pO...

  • Page 39: Personal Setting

    (DCS). The default setting for the Suunto Fused™ RGBM and Fused™ RGBM 2 is to use a compromise (0 setting) between conservative and aggressive. With the personal setting, you can select gradually more conservative or more aggressive calculations.

  • Page 40: Rebreather Diving

    You can define additional diluents as needed. You can add only diluent(s) to the gas list. By default, Suunto EON Steel Black assumes that oxygen is used, so it is not shown in the gas list.
  • Page 41 • Typically, you do not need to modify the default setpoint values. However, you can change them as needed either in Suunto app or under the main menu. To change setpoint values in Suunto EON Steel Black: 1. While in surface state, keep the middle button pressed to enter main menu.

  • Page 42: Bailouts

    Suunto EON Steel Black 4.28.4. Bailouts If at any point during a rebreather dive you suspect a malfunction of any sort, you should switch to a bailout gas and abort the dive. To change to a bailout gas: 1. Keep the middle button pressed to enter the main menu.
  • Page 43 Suunto EON Steel Black NOTE: Omitting mandatory safety stop does not lock the dive algorithm. Deepstop Deepstops activate only when you dive deeper than 20 m (66 ft). During ascend, deepstops activate when you are halfway up from your maximum depth. Deepstops are presented like safety stops.

  • Page 44: Sample Rate

    6. Keep the middle button pressed to exit. Deep sleep Deep sleep is a function that prolongs battery life when Suunto EON Steel Black has not been used for some time. Deep sleep is activated when two days have passed since: No buttons have been pressed •...

  • Page 45: Suunto App

    3. If you have not yet set up your Suunto EON Steel Black, do so now (see 3.1. Device setup). 4. Tap the watch icon in the upper left corner of the screen and tap on the ' + ' icon to add a new device.

  • Page 46: Synchronizing Logs And Settings

    Suunto EON Steel Black 3. If you have not yet set up your Suunto EON Steel Black, do so now (see 3.1. Device setup). 4. Tap the watch icon in the upper right corner of the screen. 5. Select your dive computer from the list of found devices and tap [PAIR] .

  • Page 47: Timer

    4.37. Timer Suunto EON Steel Black has a timer that can be used for timing specific actions during surface or dive. The timer is shown in the bottom right corner as a scrollable item.

  • Page 48: Use

    2. Scroll to General with the upper or lower buttons and press the middle button. 3. Press the middle button to enter About EON. 4. Scroll to EON info, press the middle button to enter. You can check device software version, serial number, etc. there.

  • Page 49: How To Install And Pair A Suunto Tank Pod

    2. After installing the Tank POD and opening the valve, wait for the green LED on the Tank POD to flash. 3. If your Suunto EON Steel Black has a blank screen, press any key to activate it. 4. Use proximity pairing: Hold your Suunto EON Steel Black close to the Tank POD. Make sure you follow the instructions in Tank POD alignment section of the Tank POD user guide.
  • Page 50 Suunto EON Steel Black 2. Press the middle button to open the gas settings and select Tank POD. 3. From the list of Tank PODs, select the one which matches the serial number of your Tank POD. 4. Make sure the Tank POD has been activated by ensuring the tank pressure reading shows on screen and POD green led is blinking.
  • Page 51 Suunto EON Steel Black 2. Gases menu opens. Select the gas you want to unpair your Tank POD from: 3. Select Unpair: 4. Your Tank POD is removed from the selected gas list: To unpair and remove your Tank POD from a specific gas through the menu: 1.

  • Page 52: How To Plan A Dive Using The Dive Planner

    Suunto EON Steel Black 4. Select Unpair: 5. Your Tank POD is removed from the selected gas list: 5.6. How to plan a dive using the Dive planner Before planning your first dive, go through the planner settings and configure them according to your personal preference.

  • Page 53: How To Customize Dive Modes With Suunto App

    1. Download and install Suunto app from the app store of your iOS/Android mobile device. 2. Turn on Bluetooth on your phone and let the app find the available Suunto devices. 3. Pair your Suunto EON Steel Black with the app.
  • Page 54 NOTE: When creating or modifying dive modes, you need to synchronize the changes with your Suunto EON Steel Black to save the settings to your device. Synchronization is done automatically when changes are detected and you can also start it manually.

  • Page 55: How To Enable Gas Consumption Metering

    For more information about the views in different dive modes, see the respective sections • under 4.16. Dive modes. Adding and editing gases Configure what you see under the Gases menu in your Suunto EON Steel Black device. • Turn Multiple gases on or off. •...

  • Page 56: How To Reset Tissues

    Suunto EON Steel Black 5.10. How to reset tissues You can find Reset tissues under General » About EON » Restore to defaults. 1. Scroll down to Reset tissues. 2. Press the middle button to open Reset tissues. 3. Carefully read the warning which pops up on the screen. You can scroll down with the middle and the lower buttons.

  • Page 57: Care And Support

    When flying, turn your dive computer to airplane mode under General » Connectivity. Do not try to open or repair Suunto EON Steel Black by yourself. If you are experiencing problems with the device, contact your nearest authorized Suunto Service Center.

  • Page 58: Changing Strap To Bungee

    6.4. Charging battery Charge Suunto EON Steel Black with the supplied USB cable. For charging, use a USB port of 5 Vdc, with minimum 0.8 A as a power source. If the battery is very low, the display is off while charging until the battery reaches an adequate charge level.

  • Page 59: Disposal And Recycling

    Do not throw the device away with normal household garbage. If you wish, you may return the device to your nearest Suunto dealer. The symbol below indicates that within the European Union, this device must be disposed of according to the directive for Waste Electrical &...

  • Page 60: Reference

    Suunto EON Steel Black 7. Reference 7.1. Technical specifications Dimensions and weight: Length: 104.6 mm / 4.12 in • Width: 60.5 mm / 2.38 in • Height: 23.1 mm / 0.91 in • Weight: 347 g / 12.2 oz •...
  • Page 61 Memory capacity: approximately 200 hours of diving or 400 dive logs, whichever comes • first Suunto Fused™ RGBM 2 algorithm tissue calculation model Developed by Suunto and Bruce R. Wienke, BSc, MSc, PhD • 15 tissue compartments • Tissue compartment halftimes for nitrogen: 1, 2, 5, 10, 20, 40, 80, 120, 160, 240, 320, 400, •...
  • Page 62 Hamilton, PhD and currently accepted exposure time limit tables and principles. Bühlmann 16 GF algorithm tissue calculation model Developed by Swiss physician Albert A. Bühlmann, M.D. • Suunto has used Bühlmann ZHL-16C version as a basis of the development • 16 tissue compartments •...

  • Page 63: Compliance

    Suunto EON Steel Black or available at www.suunto.com/ suuntoeonsteelblack/safetyandregulatoryinformation. 7.3. Trademark Suunto EON Steel Black, its logos, and other Suunto brand trademarks and made names are registered or unregistered trademarks of Suunto Oy. All rights are reserved. 7.4. Patent notice...

  • Page 64: Copyright

    Suunto knew of the likelihood of such damages. Suunto shall not be liable for delay in rendering warranty service.

  • Page 65: Dive Terms

    Suunto EON Steel Black implied. This document content is subject to change at any time without notice. The latest version of this documentation can be downloaded at www.suunto.com. 7.7. Dive terms Term Explanation Altitude dive A dive made at an elevation greater than 300 m (1000 ft) above sea level.
  • Page 66 Suunto EON Steel Black Term Explanation Equivalent Narcotic Depth is used as a way of estimating the narcotic effect of a breathing gas typically with trimix gas mixtures. For a given breathing gas mixture and depth the END indicates the depth which would produce the same narcotic effect when breathing compressed air.
  • Page 67 Suunto EON Steel Black Term Explanation contingency partial pressure limit is 1.6 bar. Dives beyond this limit risk immediate oxygen toxicity. Repetitive dive Any dive whose decompression time limits are affected by residual nitrogen absorbed during previous dives. Residual nitrogen The amount of excess nitrogen remaining in a diver after one or more dives.
  • Page 68 Suunto EON Steel Black...
  • Page 69 SUUNTO CUSTOMER SUPPORT www.suunto.com/support www.suunto.com/register Manufacturer: Suunto Oy Tammiston kauppatie 7 A, FI-01510 Vantaa FINLAND © Suunto Oy 03/2022 Suunto is a registered trademark of Suunto Oy. All Rights reserved.

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