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Poseidon SE7EN User Manual

Appendix 3 Page 104

The next most important region is the upper-left part of the screen, where the current PO

2

 value 

is displayed (2 in figure 3-2). The lower half of the screen includes basic information about depth 
(on the left side, 3), and time (on the right side, 4). The left and right edges of the screen (5) include 
bar graphs that represent the current capacity of the diluent (left side) and oxygen (right side) 
cylinders, as a percentage of total cylinder capacity. Finally, the center circle of the screen (6) 
includes several user changeable instruments such as ascent rate, compass and other features. 
When the Poseidon SE7EN electronics are started the display has the capability of showing many 
things but in the figure 3-3 the main symbols, icons and graphical elements is described in detail.

Figure 3-2.

 LCD display layout.

Figure 3-3.

 Symbols.

DANGER:

 

If the Primary Display screen is ever blank while diving the 
Poseidon SE7EN, immediately commence an abort to the surface 
in Open-Circuit mode (regardless of whether the HUD Vibrator is 
activated). Failure to do so could lead to serious injury or death.

Display states

Connecting status

Time

Battery life indicator

Oxygen 

gas pressure

Diluent 

gas pressure

Center area

Alarm and 

Warning area

DO NOT DIVE

General alert

Stop ascending

Electronics alert

Abort

Celling alert

Ascend indicator

Decend indicator

C0, C1 or C2 Confidence

 
No Circuit mode.

Mouthpiece position 
Unknown

Question

Exhortation

Alarm and Warning symbols

Land view

Dive view

Dive log

Map

Picture

Planner

System

Settings

Display states and views

Level

Level low

Charging

Battery status

Connecting symbols

Wifi

CAN connected

CAN connected,  
power input

CAN connected,  
power output

GPS not fixed

GPS fixed

Compass calibration 
 
 
Compass Magnetism  
Warning 
 
 
Open Circuit 
 
 
Closed Circuit 
 
 
Guage Mode

Summary of Contents for SE7EN

Page 1: ...SE7EN connected to M28 POSEIDON SE7EN Appendix 3 version 1 2...

Page 2: ...m allowed working pressure it holds 612 liter 21 6 cubic feet of air Because this cylinder is your open circuit OC bailout gas in the event of an emergency Poseidon strongly recommends that this cylin...

Page 3: ...loop Repeat this procedure several times until you have pulled as strong a vacuum on the breathing loop as you can and then quickly switch the mouthpiece to OC position to hold the vacuum inside the...

Page 4: ...on M28 then the first screen displayed shows the SE7EN mode display Figure 2 2 for a few seconds before switching automatically to initiate the PreDiveTest mode Figure 2 3 The firmware version number...

Page 5: ...PSTs is as follows Test 1 Confirms the main data logger is functional Tests 2 9 verify the ROM RAM and EEPROM function in all four processors Test 10 verify the Bluetooth functionality Test 14 Confir...

Page 6: ...The system allows the diver up to two minutes to make this switch The Closed Circuit icon will continue to display until Test 43 when the mouthpiece needs to be switched to the open circuit OC positio...

Page 7: ...two decompression states do not exactly match exactly test 40 will fail Failure of this test is a notification to the diver that the system has detected this discrepancy between the two sets of decom...

Page 8: ...the off position when Test 44 is reached if not gas will be wasted during Tests 24 27 which verify that the four solenoid valves draw the correct amount of power when held open Each of these two test...

Page 9: ...racking pressure of the over pressure relief valve on the bottom of the right counterlung when that valve is adjusted to its maximum cracking pressure The system then monitors the loop pressure for th...

Page 10: ...mouthpiece is in the Closed Circuit position and is detected by the HUD the test will pass The system allows 2 minutes for this test to be completed before timing out As with the Open Circuit mouthpie...

Page 11: ...the RBConfig PC software Prebreathe Figure 2 13 Prebreathe Open circuit regulator function Test 54 After completing Test 53 the information field will have the text Switch mouthpiece to Open Circuit...

Page 12: ...mouthpiece tighten Attach HUD on to mouthpiece Attach LP diluent supply hose to inflator Close OPV on right counterlung Negative loop pressure test Insert smart battery and conduct power up self test...

Page 13: ...position NOW In most cases this signal will be triggered in association with an open circuit bailout situation thereby instructing the diver to switch the mouthpiece from closed circuit mode to open c...

Page 14: ...to alert other nearby divers of a potential problem Monitoring the M28 primary display Most of the information concerning the status of the dive and the various system parameters is communicated to t...

Page 15: ...etail Figure 3 2 LCD display layout Figure 3 3 Symbols DANGER If the Primary Display screen is ever blank while diving the Poseidon SE7EN immediately commence an abort to the surface in Open Circuit m...

Page 16: ...r of the screen means all systems are functioning properly and all parameters are working cor rectly In most cases the signals will flash when activated further drawing attention Abort and open circui...

Page 17: ...ive should be termi nated whenever this icon is displayed The diver should ascend towards the surface at a slow and controlled rate watching the Primary Display for the Stop Alert and additional decom...

Page 18: ...Chapter 2 the linearity of the oxygen sensor response is only validated up to a PO2 value of 1 0 bar atm i e 100 oxygen at sea level Most rebreathers assume that the sensor response remains linear at...

Page 19: ...C0 C1 C2 Mouthpiece position The difference between NC no circuit and UN unknown depends on whether the mouthpiece is reporting that neither closed circuit nor open circuit is currently established no...

Page 20: ...21 Current depth Maximum depth Ceiling Figure 3 22 Maximum depth The maximum depth achieved during the dive is displayed above the current depth in the lower left part of the Primary Display Ceiling i...

Page 21: ...26 Elapsed dive time The number of minutes that have elapsed during the dive i e the total dive time is dis played in the lower right part of the Primary Display above the RDT value This value repre...

Page 22: ...icator If the battery fails the entire life support system including alarms may cease to function Failure to abort to open circuit and terminate the dive could lead to serious injury or death Cylinder...

Page 23: ...ltering the center icon see figure 3 35 This selection will remain as long as you stay in the OC mode If you decide to go back to CC the gas will automatically be restored to your SE7EN predefined dil...

Page 24: ...t the Air Dil pressure graph is not flashing The electronics system will constantly calculate whether there is enough air supply remaining to allow a safe open circuit bailout to the surface If there...

Page 25: ...tments Besides the three large straps for attachment to the harness each counterlung has several additional straps used to adjust positioning At the top of each counterlung is a single adjust able str...

Page 26: ...specially deep inhaled breath For minor adjustments in buoyancy it is usually easier to control it with your breath rather than the purge button since it could easally give a bit too much gas To decre...

Page 27: ...following four conditions have all been met the depth is 0 the back of the Primary Display where the wet switch contacts are located has been dried the pressure in the diluent regulator and hoses has...

Page 28: ...l continue to flash and there may be a symbol in the upper right field of the display flashing to indicate the nature of the problem For example the directional arrows advise you to go up ascend if yo...

Page 29: ...the physical product needs to be connected and then the Power out option needs to be enabled To enable the power out function goto the SYSTEM app and press both buttons Select Connect and then Power...

Page 30: ...1 6 l CO2 per minute at STPD Standard Temperature Pressure Dry The SE7EN can support decompression diving To be able to perform decompression dives you need two things 1 the appropriate training and 2...

Page 31: ...of the counterlungs to the gas processor Figure 1 16 Three velcro straps on the back of each counterlung Figure 1 16 attach the counterlungs to the shoulder straps of the backpack The SE7EN is provid...

Page 32: ...s These valves can be replaced with blank covers if manual gas addition capabilities are not required e g for recreational diving The port for the manual Oxygen addition valve right counterlung is int...

Page 33: ...tor hose to your onboard diluent gas supply or any other offboard source Route the hose over your left sholder and connet to the diluent inflator valve though the quick connection The valves described...

Page 34: ...has been reached The generated alarm response will be similar to the alarm shown when the diver exceeds the maximum working depth of the rig This value also affects the way the controlling resource al...

Page 35: ...the diluent composition to air If the Recreational 40m battery or Deco 40m battery was inserted by mistake the diver should NOT confirm these tests Instead the test should be allowed to time out two m...

Page 36: ...ill not issue an alarm HUD Buddy lights Audio Alarm when decompression is entered There is no audio alarm when decompression is entered on a non decompres sion configuration When the mouthpiece is fou...

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