POSEIDON SE7EN User Manual
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POSEIDON SE7EN User Manual

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Poseidon SE7EN User Manual
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POSEIDON SE7EN USER MANUAL

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  • Page 1 Poseidon SE7EN User Manual Chapter 1 Page 1 POSEIDON SE7EN USER MANUAL...

  • Page 2: Table Of Contents

    5. Rear CC loop hoses..................19 Part 1 – Preparation 6. Attaching the cylinders..................21 7. E-module......................22 An Overview of the Poseidon SE7EN ..............1 8. 1st stages.......................24 Primary Display ....................1 9. LP hose & HUD to mouthpiece................26 Open-Circuit / Closed-Circuit Mouthpiece............2...
  • Page 3 Managing ascents ....................63 Units of measure ..................53 Ending the dive ....................63 Alarm signal area ..................53 Safe diving with the Poseidon SE7EN ..............64 Abort! and open circuit alerts ................53 DO NOT DIVE alert ..................53 Chapter 4 - Post-dive care and maintenance General alert ....................54...
  • Page 4 48m/60m Deco / Deep Trimix Version ............87 Standard response to test failure ..............71 Maximum TTS....................87 Troubleshooting table ...................71 Pre-Dive Procedures with a SE7EN enabled for Decompression Diving....88 Hardware issues ....................71 48m/60m Deco / Deep Trimix ...............88 If you get an error on test 49 ................72 Switching in between batteries ................88...

  • Page 5: Conventions Used In This Guide

    Text, photographs and figures copyright © 2008-2015 substitute for proper training through a legitimate training agency approved by by Poseidon Diving Systems AB Poseidon AB. It is only intended to provide basic information concerning the Poseidon ALL RIGHTS RESERVED SE7EN.

  • Page 6: Preface

    1 Unlike open-circuit scuba, the rate of gas consumption on the Poseidon SE7EN does not depend on the depth of the dive. Instead, the oxygen supply depends on how fast the diver consumes oxygen through metabolism.

  • Page 7: Conformance With Ce Requirements

    Celsius (39º Farenheit), and a maximum of 35º Celsius (95º Farenheit). Operation at tem- The exact specifications and values of the SE7EN can be found in the later chapters of peratures outside of this range may lead to unreliable function.
  • Page 8 Chapter 1 Page vii included in Chapters 1 and 2 of this Manual. The SE7EN also incorporates many automatic system tests as part of the power-up procedure. Using the SE7EN without completing these automatic system tests poses significantly increased risk to the diver.

  • Page 9: Chapter 1 - Preparation & Assembly

    The “front” of the SE7EN is the location furthest in front of a diver’s chest when wearing the rig normally; the “back” of the SE7EN is the location Right front Left front furthest behind the diver’s back when wearing the rig normally.

  • Page 10: Open Circuit/Closed Circuit Mouthpiece

    Poseidon SE7EN User Manual Chapter 1 Page 2 Open circuit/closed circuit mouthpiece One of the most amazing of several technology breakthroughs in the Poseidon SE7EN is its Figure 1-3. switch-able mouthpiece. It incorporates a high-performance lightweight open-circuit regulator, HUD with red LED on.

  • Page 11: Breathing Loop Overview

    Breathing loop overview Oxygen regulator Electronics module The most visible elements of the front portion of the Poseidon SE7EN comprise Oxygen cylinder valve the breathing loop: breathing hoses; convertible open and closed-circuit mouthpiece with built-in automatic diluent addition valve (ADV); water diver- Diluent regulator sion manifolds (sometimes referred to as “T-ports”...

  • Page 12: Carbon Dioxide Absorbent Cartridge

    Cartridge Housing discussion. Gas injection module In a fully-closed rebreather like the Poseidon SE7EN, oxygen is consumed by the diver and a mechanism must be provided for replacement of that used oxygen. Otherwise the mixture will slowly be depleted to dangerously oxygen low levels (hypoxia). The SE7EN is designed...

  • Page 13: Smart Battery Care

    Poseidon SE7EN User Manual Chapter 1 Page 5 Receiver Figure 1-7. slot Safety latch Smart battery module Retainer screw post Figure 1-8. (Left) Align the retainer screw posts on the Smart Battery with the receiver slots Smart battery care at the top of the Electronics module (note that the 4 contact pins in the housing must align with those on the battery);...

  • Page 14: Charging

    Page 6 Charging Included with the Poseidon SE7EN is a proprietary multi-function desk-top charger unit that includes adapters for most international power outlets. The battery charger has three status lights arranged in a circular pattern on the open section of the base. These are, in counter- clockwise order from the lower left in Figure 1-10: power, “Learn Cycle”...

  • Page 15: Long-Term Storage

    Storing the battery in the Poseidon SE7EN enables the depth sensor and the wet switch on the back of the primary display. If someone wearing the SE7EN accidentally falls into the It is strongly recommended that you use the same battery in the same Poseidon SE7EN for water, the system will automatically power up the rig, enhancing the probability for survival of the user.

  • Page 16: Dive Log Data

    2 minutes. Starting the unit through the wet switch will not enable pairing mode. Once the unit is paired it will be possible to connect to the SE7EN when unit is active regard- less of power up method.

  • Page 17: O-Ring Care And Maintenance

    A second, and more commonly used seal is the “ radial “ o-ring. Figure 1-12 shows a typical implementation in the Poseidon SE7EN breathing hose and hose connection ports. In contrast to a axial o-ring seal, a radial seal involves a circular groove that goes around a cylindrical or semi-cylindrical object (it can be a rectangular object with rounded corners provided the corners have a sufficiently large radius –...

  • Page 18: Cylinders And Regulators

    Cylinders and regulators The Poseidon SE7EN (EU version only) is factory-issued with two 3-liter aluminum cylinders with Poseidon post-style valves (see Figure 1-13). The oxygen cylinder has a white valve knob DANGER: and the diluent cylinder has a black valve knob. Both cylinders are pressure-rated to 204 bar Do not fill the oxygen cylinder to more than 135 bar (2000 psi).

  • Page 19: Filling The Cylinders

    General examples of diluent gases that can be used in rebreathers include: air, nitrox, trimix, and heliox. The SE7EN is in its recreational configuration limited to 40 m/130 feet depth and uses only air as an allowed diluent, following established compressed air scuba sport diving practices.

  • Page 20: Assembly

    Poseidon SE7EN User Manual Chapter 1 Page 12 Part 2 – Assembly Before you start assembling your Poseidon SE7EN eCCR, you should perform the follow- ing preparations: • Make sure you have a scrubber that will last your planned dive(s).

  • Page 21: Stabjacket / Bcd / Wing

    This is to allow more experienced divers the choice of using an existing personal backpack, harness, and buoyancy compensator. Poseidon supplies the tightly-integrated Besea, harness, and buoyancy wing system for use with the SE7EN. The front extrusion rail on the Poseidon SE7EN accepts the QMR adapter or 11-inch adapter (see Figure 1-14). Attach- ment of the Besea is as quick as aligning the QMR adapter pin-bolts to the upper holes in the Besea harness as shown in Figure 1-14.

  • Page 22: Cylinder Attachment

    The Diluent (black knob) tank is mounted on the unit’s left hand side and the oxygen (white Poseidon SE7EN. Properly adjusted, the tanks should be firmly attached, not being able to knob) is mounted on the unit’s right hand side.
  • Page 23 Poseidon SE7EN User Manual Chapter 1 Page 15 Tank Strap & Buckle. Figure 1-19. Thread the tank band buckle D-ring on to the tank band . Fold the tank band and thread it back through the same opening on the tank band bracket.

  • Page 24: Counter Lungs To Bcd / Harness

    (Figure 1-22) attach the counterlungs to the shoulder straps of the backpack. The SE7EN is provided with a lower D-ring and a crotch strap that connect to the Connect the small male plastic clip on the upper part of the counter lung to the female plastic bottoms of each counterlung.

  • Page 25: Rear Cc Hoses To Counterlung

    Poseidon SE7EN User Manual Chapter 1 Page 17 4. Rear CC hoses to counterlung T-connections. Connect the T-connection to the top port in each counterlung. Radial seal surface Radial o-ring seal Thread connection post Figure 1-23. Insert the right hand water diversion Checkvalve port manifold into the port on the right counterlung.
  • Page 26 Poseidon SE7EN User Manual Chapter 1 Page 18 Figure 1-25 shows a cross section of the water diversion manifold. A quick inspection will show that on one side (the “front”) you can insert a finger and feel an open vertical tube leading down to the threaded counterlung connection post (see Figure 1-25).

  • Page 27: Rear Cc Loop Hoses

    There are a total of eight (8) hose connections to be made in the assembly of the Poseidon SE7EN. Assembly of these hoses starts at the gas processor, and continues forward Repeat these steps with the right rear breathing hose, so the rig is as shown in Figure 1-27.
  • Page 28 Poseidon SE7EN User Manual Chapter 1 Page 20 Figure 1-31. Attach the right counterlung Figure 1-32. Attach the left rear breathing water diversion manifold to the right rear hose to the left counterlung shoulder port. breathing hose. ”Radial” o-ring seal Sealing surface for ”radial”...

  • Page 29: Attaching The Cylinders

    6. Attaching the cylinders Attach the two tanks to the canister housing tank connections and secure them with the tank The Poseidon SE7EN is equipped with one mounting bracket holding two nylon cylinder straps straps. with cam buckles on each side. Attachment of the diluent cylinder (black valve handle) is illus- trated in Figures 1-33 and 1-34.

  • Page 30: E-Module

    7. E-module Check and make sure that the two o-rigs around the e-module are in place and without At the heart of the Poseidon SE7EN is an electronic, pneumatic, control, and user feedback damage. system. The electronics module, shown at the center of Figure 1-35, contains the primary...
  • Page 31 DANGER: The electronics module contains the most important life-critical element of the Poseidon SE7EN: the oxygen sensors. A leak into the electronics housing may contaminate the oxygen sensors WARNING: and prevent them from providing correct readings. Dual radial...

  • Page 32: St Stages

    If contamination occurs, the compromised components Figure 1-38. should be taken to an authorized Poseidon Tech Center representative or a qualified tech dive 16 cm Low Pressure hose’s shop technician for oxygen cleaning.
  • Page 33 Never expose these components to compressed air, which can contaminate components with oil. Always have these components cleaned and serviced by a Poseidon Tech Center representative or other qualified personnel. Always use oxygen- compatible lubricants when servicing o-rings and seals. Open oxygen cylinder valves slowly.

  • Page 34: Lp Hose & Hud To Mouthpiece

    Poseidon SE7EN User Manual Chapter 1 Page 26 9. LP hose & HUD to mouthpiece Connect the long braided 90 cm Low Pressure hose to a IP port on the diluent 1st stage. See Figure 1-42. Make sure the connection o-ring is in place and without damages.

  • Page 35: Jetstream Octopus

    Chapter 1 Page 27 10. Jetstream Octopus The Poseidon SE7EN is delivered with an alternative air source (i.e. Octopus) that should be connected to the diluent 1st stage. To fully understand the funktions of the Jetstream Octopus, please read the Jetstream Octopus manual.

  • Page 36: Front Cc Hoses To Counter Lung T-Section

    Poseidon SE7EN User Manual Chapter 1 Page 28 11. Front CC hoses to counter lung T-section Connect the left front CC loop hose to the inhalation counter lung T-connection. Lay out the two remaining breathing hoses. Connect the right front breathing hose to the front port of the right counterlung water diversion manifold (Figures 1-48).

  • Page 37: Front Cc Hoses To Mouthpiece

    Connect the front right CC loop hose to the exhalation side CC loop hose connection of the valve only with a Poseidon original manufacture mouthpiece checkvalve. Attach the right hand mouthpiece.
  • Page 38 IMPORTANT: Poseidon original manufacture mouthpiece checkvalve. Attach the left front breathing hose to The left and right checkvalves and their carrier plates in the the upstream CC port as shown in Figure 1-50, following the standard hose connection pro- mouthpiece are identical to each other.

  • Page 39: Cover

    Poseidon SE7EN User Manual Chapter 1 Page 31 13. Cover SE7EN Cover Figure 1-52. Press the upper part forwards so the mechanism engages. Make sure the cover is securely fixed “click”. Figure 1-51. Hook the cover lower part to the tank connection bracket.

  • Page 40: Scrubber

    The outer shell of this system (shown in Figure 1-54) comprises the structural backbone of the Poseidon SE7EN and both the diluent and oxygen cylinders attach to the side of this extruded The canister has been tested for a duration of 180 minutes at 40m, water temp 4°C, and a aluminium tube.
  • Page 41 It is also good practice to rinse, disinfect, and dry the absorbent sponge following a dive. Any disinfectant solution that doesn’t have a negative effect on plastics and/or rubber can be used for this purpose. Poseidon recommends using a Figure 1-57. Remove the End Plate.
  • Page 42 It is good practice to rinse, disinfect, and dry the lower absorbent sponge following a dive. Any disinfectant solution that doesn’t have a negative effect on plastics and/or rubber can be used for this purpose. Poseidon recommends using a disinfectant called Gigasept™ or a disinfec- tant called Virkon.
  • Page 43 Figure 1-63. Figure 1-64. Figure 1-65. Figure 1-66. Loading the Cartridge End Cap into the Loading the Poseidon SE7EN Cartridge Insert cartridge top plate and inspect Inspect and lubricate cartridge housing new replacement SofnoDive ® Top Cap into the replacement Sofno- the face-seal o-ring.
  • Page 44 O-rings and their sealing surfaces are at the heart of reliable operation of the Poseidon SE7EN. Pay attention to this detail when you assemble the rig.
  • Page 45 Because CO exists naturally in the atmosphere, a SofnoDive doubt, leave the cartridge inside the Poseidon SE7EN and store 797 cartridge openly exposed to the atmosphere will expire in 24 it with the mouthpiece in the open-circuit (OC) switch position to hours.

  • Page 46: Servicing

    Local legislation may force more frequent testing. Regulators should be rebuilt every two years. Oxygen regulators, cylinders, and cylinder valves should be oxygen cleaned every two years. All of these services form a part of the Poseidon Tech Center biannual service. Contact your Poseidon representative for details.

  • Page 47: Chapter 2 - Pre-Dive Procedures

    Before the dive, make sure there is enough diluent (air) and oxygen to carry out the dive you plan to do. The EU version of the Poseidon SE7EN comes with a 3-liter / 183-cubic inch aluminum diluent (air) cylinder (with black valve knob) with a rated fill pressure of 204 bar / 2958 psi.

  • Page 48: Intact Breathing Loop Verification

    Poseidon SE7EN User Manual Chapter 2 Page 40 With the mouthpiece in the OC position, observe over a period of a minute or two whether the breathing hoses expand from their contracted state, and the counterlungs show signs of WARNING: relaxing or inflating slightly.

  • Page 49: Electronics Power-Up

    Poseidon SE7EN serial number (Figure 2-2). The firmware version number is shown in large digits on the left and right side of the display screen to identify firmware version (left) and patch number (right).

  • Page 50: Power-Up Self Test (Test 1 - 38)

    Poseidon SE7EN. You will see and hear the rig as it tests the HUD light and vibrator, and the battery lights and speaker systems. Similarly, you may also hear the rig opening and closing some of the gas control valves.

  • Page 51: Pre-Dive Tests (Test 39 - 55)

    (see Chapter 1). If the automatic pre-dive routine persistently fails any of these tests, contact a Poseidon Tech Center for assistance. In general, repeated failure of any one of these automated tests indicates a problem with the Poseidon SE7EN that will not be serviceable by the user. DANGER: Figure 2-6B.

  • Page 52: Tissue Tension Test (Test 40)

    Tissue tension (test 40) Open circuit mouthpiece position (test 43) As discussed in Chapter 1, the Poseidon SE7EN stores decompression data in two places: Test 43 (mouthpiece OC position test) is automatically passed provided the mouthpiece was the battery, and the main backpack computer. This allows a diver to switch to a spare battery left in the OC position following the previous steps.

  • Page 53: Oxygen And Diluent Cylinder Supplies /Test 44 & 45)

    Poseidon SE7EN User Manual Chapter 2 Page 45 Oxygen and diluent cylinder supplies (test 44 & 45) Tests 44 and 45 determine whether the Oxygen and Diluent cylinders, respectively, are turned on and have sufficient gas to conduct a dive. Following proper procedure, both cylinders will have been in the off position when Test 44 is reached (if not, gas will be wasted during Tests 24–27,...

  • Page 54: Battery Power Verification (Test 48)

    Like the Negative Pressure Loop test, this test could very easily be performed manually. However, one of the features of the Poseidon SE7EN – the placement of the depth sensor within the breathing loop – allows this test to be performed automatically. And so it is –...

  • Page 55: Oxygen Sensor Calibration (Test 53)

    If no amount of repositioning of the mouthpiece lever or HUD allows the system to pass Test 50, then contact an authorized Poseidon Service Center. Figure 2-11.

  • Page 56: Service Interval Check (Test 55)

    Each rebreather unit must be brought to a qualified Poseidon Service Center at least once every two years, to receive updates and make any necessary repairs or adjustments. When Test 55 is displayed, the number in the lower-right corner of the screen (adjacent to the small clock icon) indicates the number of weeks remaining before servicing will be required.

  • Page 57: Pre-Dive Checklist

    Poseidon SE7EN User Manual Chapter 2 Page 49 Poseidon SE7EN Pre-dive checklist Start up Procedure Pre-dive checklist Cylinders OFF, CLOSE OPV, Check for damage, dirt and OPEN-CIRCUIT mode. deteriorations during assembly. Touch wet-switch, keep dry for 5 seconds, then HOLD wet-switch.

  • Page 58: Chapter 3 - Dive Procedures

    Chapter 3 Page 50 Chapter 3 – Dive procedures HUD vibrator Perhaps the most important alarm signal on the Poseidon SE7EN is a customized version of the patented Juergensen Marine DIVA vibrator system, located in the HUD mounted on the mouthpiece.

  • Page 59: Hud Light

    HUD with green LED on. data during the course of the dive. It is extremely important that all Poseidon SE7EN divers understand how to read the information contained in the Primary Display, particularly concerning various alarm conditions.
  • Page 60 Failure to do so could lead to serious injury or death. When the Poseidon SE7EN electronics are started (via the wet switch, or when the battery is inserted into the unit), the LCD screen momentarily shows all elements of the display, as illus-...

  • Page 61: Units Of Measure

    Figure 3-7. Alarm signal area. Figure 3-7b. Alarm signal area. mean. It is important that all Poseidon SE7EN divers become familiar with these symbols and values, what they mean, and how to respond when they are not displaying appropriate values (or are flashing).

  • Page 62: General Alert

    IMPORTANT: bolt on the screen. This symbol indicates that a It is the sole responsibility of each and every Poseidon SE7EN problem has been detected with the electron- diver to understand all of the alarm systems and conditions,...

  • Page 63: Po 2 Setpoint

    Every few seconds, the PO value will briefly (less than one second) switch to show the current One of the important new features in the Poseidon SE7EN is the Hyperoxic Linearity test. Setpoint. Normally, this value will be the same as the current PO...

  • Page 64: Oxygen Sensor Confidence

    “nc” with “n” in the lower half, and “c” in the upper half (mouthpiece is not fully in either Poseidon SE7EN is the automatic oxygen sensor position), or “un” with “u” in the upper half, and “n” in the lower half (mouthpiece position validation system, which monitors the reliability is unknown).

  • Page 65: Current Depth

    Poseidon SE7EN User Manual Chapter 3 Page 57 Maximum depth / Ceiling In most circumstances,the maximum depth achieved during the dive is displayed below the current depth, in the lower-left corner of the IMPORTANT: Primary Display, to the left of the word “Max”.

  • Page 66: Remaining Dive Time (Rdt)

    WARNING: Figure 3-27. Ascend arrow. Figure 3-28. Descend arrow The Poseidon SE7EN rebreather is in recreational mode not intended for use on planned decompression dives. Although In the unlikely event that a diver incurs a decompression obligation (i.e., the Decompression...

  • Page 67: Battery Life Indicator

    Poseidon SE7EN User Manual Chapter 3 Page 59 Battery life indicator Cylinder pressure indicators Along either side of the Primary Display are the two cylinder pressure indicators, represented Near the bottom of the Primary Display, just to as bar graphs. The graph on the left side of the screen is for the diluent supply, and the graph the left of the Elapsed Dive Time value, is the on the right side of the screen is for the oxygen supply.

  • Page 68: System Monitoring

    The SE7EN is designed to make the task of monitor- The value can change even more dramatically (and suddenly) when the limit is based on ing these parameters as easy and straightforward as possible, and alarm systems have been remaining no-decompression time.

  • Page 69: Breathing Underwater

    Counterlung placement Counterlung strap adjustments When properly adjusted, the Poseidon SE7EN should rest easily on the diver’s back. It should Besides the three large straps for attachment to the harness, each counterlung has several not feel awkward or loose, but rather it should be reasonably snug and comfortable. Specific additional straps used to adjust positioning.

  • Page 70: Tips On Breathing

    In most cases, the water that collects inside the exhalation counter lung will not buoyancy control with closed-circuit rebreathers is beyond the scope of this Manual. However, disrupt the function of the Poseidon SE7EN in any way, so it can be safely ignored. However, the following tips might be useful.

  • Page 71: Managing Ascents

    When the electronics shut down, the oxygen gas supply system is vented. If the cylinder valve is open, the system After surfacing and exiting the water, the Poseidon SE7EN electronics will continue to function will not properly vent. indefinitely, ensuring a life-sustaining gas mixture is maintained in the breathing loop, until the following four conditions have all been met: the depth is “0”;...

  • Page 72: Safe Diving With The Poseidon Se7En

    The default setpoint control algorithm is designed to allow for hands-off control of the system PO during all phases of a dive. The Poseidon SE7EN uses a proprietary method • ALWAYS remove the sponge from the top and bottom of the CO absorbent cartridge after that begins with a default control setpoint on the surface of 0.5 bar and gradually increases...

  • Page 73: Chapter 4 - Post-Dive Care And Maintenance

    Chapter 3 to shut the power down on the electronics system. Failure to do so will not cause any risk to the diver or the Poseidon SE7EN itself, but it will lead to unnecessary battery consumption, thereby requiring re-charging sooner than would otherwise...

  • Page 74: Replacing The Water Trap Sponges

    Remove the battery from the electronics Module and recharge, if necessary. Be careful not to to remove the sponge from the Poseidon SE7EN backpack and squeeze as much water out mix up different batteries with different electronics modules, as they are keyed to each other.

  • Page 75: Replacing Oxygen Sensors

    Oxygen sensor removal tool First-stage regulators should receive annual servicing, as needed. The open-circuit regulator built into the mouthpiece of the Poseidon SE7EN should be serviced by a qualified Poseidon Figure 4-1. Service Center prior to diving after an extended period of storage.
  • Page 76 Poseidon SE7EN User Manual Chapter 4 Page 68 With the Oxygen Sensor removal tool snapped into the oxygen sensor base, press the plunger Once the sensor is properly attached to the sensor base, the electrical connector on the elec- button with the thumb (Figure 4.3) to lock it in. While continuing to press the button, pull the tronics module should be attached to the sensor.

  • Page 77: Traveling With The Poseidon Se7En

    Indeed, a great deal of effort went into the design and development of the SE7EN flat part of the outer edge of the sensor base facing towards the top of the electronics module to ensure that it was lightweight and easy to travel with.

  • Page 78: Appendix 1 - Troubleshooting Guide

    The Hardware aspect of the test failed (Figure A1-2). When a test fails the SE7EN will either power down after Issues section discusses various problems that can occur with the mechanical aspects of the 5 minutes or power down if the user goes through the wet/dry confirmation sequence.

  • Page 79: Standard Response To Test Failure

    Poseidon SE7EN User Manual Appendix 1 Page 71 Technically, an error code of “1” means that the test passed successfully. However, this should never be displayed, because as soon as a test passes, the routine continues on to the next WARNING: test.

  • Page 80: If You Get An Error On Test 49

    This is due to the fact that the depth sensor in the SE7EN is located at the bottom of the e-module, located behind your neck and not in the display it self.

  • Page 81: Hyperoxic Linearity Test

    Contact the dive center / dealer where you purchased your Poseidon SE7EN and e-mail test. The reason for the test is to make sure that the oxygen sensors can read PO2 values them the Red Box Log file(s) and dive log(s) you have downloaded from your SE7EN. above 1.0.

  • Page 82: Table Of The Automatic Pre-Dive Tests

    1) Standard Response; 2) If test continues to fail, reset system parameters; Primary Display, which contains user-selectable configuration EEPROM 3) If test failure persists, contact an authorized Poseidon Service Center for information, for internal errors or data corruption. repair. HUD ROM / RAM / Fuses. This tests the RAM, ROM and fuse 4=Bad RAM 1) Standard Response;...
  • Page 83 1) Standard Response; 2) If test continues to fail, set RTC clock or reset in the battery processor, which contains user-selectable con- EEPROM system parameters; 3) If test failure persists, contact an authorized Poseidon figuration information, for internal errors or data corruption. 84=Battery missing Service Center for repair.
  • Page 84 1) Standard Response; 2) If test failure persists, or the Battery LED does not consumed by the green LED in the Head-Up Display (HUD), too low turn on during this test, contact an authorized Poseidon Service Center for when activated. 12=Current repair.
  • Page 85 1) Standard Response; 2) If test failure persists, or the Audio Alarm speaker trical current consumed by the speaker in the battery (Audio too low does not sound during this test, contact an authorized Poseidon Service Alarm), when activated. 12=Current Center for repair.
  • Page 86 1) Standard Response; 2) If test continues to fail, ensure loop temperature the temperature sensor embedded in the depth sensor is Suspect is within limits; 3) If test failure persists, contact an authorized Poseidon working correctly. Service Center for repair.
  • Page 87 3) If test continues to fail, try a different battery (subject to decompression this test will always fail. 87=Voltage too low data issues); 88= Voltage 4) If test failure persists, contact an authorized Poseidon Service Center for too high repair. Positive Pressure Loop Test. Besides checking for leaks in the 46=Failed to 1) Ensure mouthpiece is in OC mode;...
  • Page 88 50=Valve Leaking 1) Ensure breathing loop is stable during test; 2) If test failure persists in spite 89=The mouth piece of a sealed and stable loop, contact an authorized Poseidon Service Center was moved from the for repair. OC position during the loop pressure test Mouthpiece Closed-Circuit Position.
  • Page 89 4) Ensure CO absorbent cartridge is 72=Primary installed correctly; 5) Ensure breathing loop temperature is within range O2 Low limits; 6) If test failure persist, contact an authorized Poseidon Service Center 73=Primary for repair. O2 High 76=Bad Time...
  • Page 90 3) If leaking persists, contact an authorized Poseidon Service Center or dive shop for on the electronics module, or from one of the high-pressure sensors.

  • Page 91: Appendix

    DECO 40 / DECO TRIMIX 48 / DECO TRIMIX 60 / DEEP 100 1. Introduction The SE7EN can support decompression diving. To be able to perform decompression dives, you need two things: 1) the appropriate training, and 2) a decompression-enabled battery WARNING: module.

  • Page 92: Assembly Technical 60 M Counter Lungs To Bcd/Harness/Regulators

    (Figure 1-16) attach the counterlungs to the shoulder straps of the backpack. The SE7EN is provided with a lower D-ring and a crotch strap that connect to the Connect the small male plastic clip on the upper part of the counterlung to the female plastic bottoms of each counterlung.

  • Page 93: Rear Cc Hoses To Counterlung

    Poseidon SE7EN User Manual Appendix 2 Page 85 Rear CC hoses to counterlung Manual addition T-connections. The additional ports on the counterlungs can be used for Oxygen and Diluent manual gas Connect the T-connection to the top port in each counterlung.

  • Page 94: Routing The Inflator Hoses

    Poseidon SE7EN User Manual Appendix 2 Page 86 Routing the inflator hoses Connect the the O 2 inflator hose “marked O 2 ” to your onboard O 2 gas supply (or any other offboard source). Route the hose over your right shoulder and connect to the O 2 inflator valve though the quick connection.

  • Page 95: Setting Up Decompression Configured Se7En

    Appendix 2 Page 87 3. Configuring the SE7EN for decompression diving The SE7EN can be set up differently for different types of dives through the PC configuration Decompression and TTS settings can be altered at any time until dive start meanwhile gas mixtures software tool.

  • Page 96: Pre-Dive Procedures With A Se7En Enabled For Decompression Diving

    5. Switching batteries If a rig has been configured with a gas mixture other than air on a SE7EN using a 48m, 60m or a 100m battery, and then a 40m Deco battery or Recreational 40m battery is then inserted into the rig, the user will be given a special prompt during the pre-dive to confirm that diluent will be automatically changed to air.

  • Page 97: Decompression Diving With The Se7En

    Planning your CC Dive and OC bailout For more comprehensive planning tool use the “WeDive” application which can be On a SE7EN that is not enabled for decompression diving, the system monitors the amount of used with iPhone and iPad. See AppStore for further information.

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