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Inspiration flash cards

Inspiration flash cards. Remember that your unit AVERAGES the two closest cells. Any deviation outside (above or below) .15 of the average will cause an alarm or CELL WARNING.

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Inspiration flash cards

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  1. Inspiration flash cards • Remember that your unit AVERAGES the two closest cells. Any deviation outside (above or below) .15 of the average will cause an alarm or CELL WARNING. • The following cards first depict a plain handset. Sometimes a notation of additional info is included. The card following with analysis and corrective action in yellow will have a slide “b” designation. • Working these slides should help you to build intuitiveness into handset issue recognition. By Jeff Johnson

  2. Master 1.3 • 1.30 1.29 1.31 1

  3. Master 1.3 Normal Operations 1.30 1.29 1.31 1b

  4. (SETPOINT 1.3) CELL WARNING 2

  5. (SETPOINT 1.3) CELL WARNING • CELLS 1 & 3 POSS STUCK • Cells 1 & 3 average: 1.305 -.15 = 1.15 • CELL 2 PROBABLY ACCURATE • PERFORM DILLUENT FLUSH • CHECK FOR SENSOR MOVEMENT 2b

  6. (SETPOINT 1.3) CELL WARNING BECOMING POSITIVELY BOUYANT 3

  7. (SETPOINT 1.3) CELL WARNING BECOMING POSITIVELY BOUYANT • PROBABLE HYPEROXIA • CELLS 1 & 2 PROBABLY STUCK • CELL AVG: 1.285 + .15 = 1.43 • GO TO O.C. FOR SANITY CHECK • GO BACK TO REBREATHER • DILUENT FLUSH • CHECK PO2 • REPEAT UNTIL PROPER PO2 OBTANINED • IF PO2 REMAINS HIGH; BAILOUT 3b

  8. (SETPOINT 1.2) CELL WARNING • 1.18 1.35 1.20 BECOMING BOUYANT? 4

  9. (SETPOINT 1.2) CELL WARNING • 1.18 1.35 1.20 BECOMING BOUYANT? • CELLS 1 & 3 PROBABLY STUCK • CELL AVG: 1.195 = .15 = 1.345 • PERFORM DILUENT FLUSH • CHECK PO2 • REPEAT IF INDICATED • PERFORM BAILOUT PRIOR TO MIX BECOMING HYPEROXIC 4b

  10. SETPOINT .70 CELL WARNING BOUYANCY DOES NOT SEEM TO BE CHANGING 5

  11. SETPOINT .70 CELL WARNING BOUYANCY DOES NOT SEEM TO BE CHANGING • CELL AVG: .785 - .15 = .835 • EITHER STUCK OPEN SOLENOID • PERFORM DILUENT FLUSH • OR • DID YOU JUST ASCENDED 50 ft? • AND SWITCHED FROM HI TO LOW SETPOINT • MONITOR PO2 • MONITOR OR ADD SMALL AMT OF DIL • CONTINUE TO MONITOR PO2 CLOSELY 5b

  12. (SETPOINT 1.6) HIGH OXYGEN 6

  13. (SETPOINT 1.6) HIGH OXYGEN • EITHER STUCK OPEN SOLENOID OR DESCENDING • SHOULD NOT BE DESCENDING ON 1.6 SETPOINT • DO NOT DESCEND!! • SWITCH TO O.C. • 2 BREATHS • SWITCH BACK TO CC • PERFORM DILUENT FLUSH • CHECK PO2 • REPEAT • BAILOUT IF UNRESOLVED 6b

  14. (SETPOINT .70) LOW OXYGEN 7

  15. (SETPOINT .70) LOW OXYGEN • STUCK CLOSED SOLENOID OR CLOSED O2 VALVE • SWITCH TO OC, CHECK DISPLAYS, 2 BREATHS OC • RETURN TO CC • PERFORM DILUENT FLUSH • CHECK PO2 • CHECK O2 TANK VALVE & PRESSURE • IF CLOSED OPEN AND USE ADDITION O2 VALVE • MONITOR PO2 • CONTINUE TO USE CC IF APPROPRIATE OR BAILOUT • DO NOT ASCEND ON LOOP FROM 90 FT ON .39 /3.72 = .10 7b

  16. (SETPOINT 1.3) CELL WARNING 8

  17. (SETPOINT 1.3) CELL WARNING • EITHER STUCK OPEN SOLENOID • OR DESCENDING • SHOULD NOT BE DESCENDING ON 1.3 SETPOINT • DO NOT DESCEND!! • SWITCH TO O.C. • 2 BREATHS • SWITCH BACK TO CC • PERFORM DILUENT FLUSH • CHECK PO2 • REPEAT IF INDICATED • BAILOUT IF UNRESOLVED 8b

  18. MASTER 1.3 BECOMING NEGATIVE AND HAVE MAINTAINED DEPTH. • 1.24 1.25 1.28 9

  19. MASTER 1.3 BECOMING NEGATIVE AND HAVE MAINTAINED DEPTH. • 1.24 1.25 1.28 • VALVE ON O2 TANK CLOSED OR • SOLENOID STUCK CLOSED • CHECK O2 PRESSURE GUAGE • CHECK O2 VALVE • IF CLOSED OPEN AND MONITOR • MAY NEED TO USE MANUAL ADDITION BUTTON • BE PREPARED FOR / CONSIDER BAILOUT 9b

  20. SETPOINT 1.3 CELL WARNING BOUYANCY CHANGING? 10

  21. SETPOINT 1.3 CELL WARNING BOUYANCY CHANGING? 10b

  22. MASTER 1.3 ARE YOU BECOMING POSITIVE? OR NEGATIVE? 11

  23. MASTER 1.3 ARE YOU BECOMING POSITIVE? OR NEGATIVE? • DID YOU DESCEND SEVERAL FEET? • You would become more negative. • More positive buoyancy would be O2 addition. • PERFORM DILUENT FLUSH • MONITOR FOR CELL MOVEMENT • REPEAT DIL. FLUSH AS INDICATED • PERFORM BAILOUT PRIOR TO HYPEROXIC MIX. • May need to shutdown O2 valve to remain neutral. 11b

  24. (SETPOINT 1.3) HIGH OXYGEN • 1.58 1.62 1.61 12

  25. (SETPOINT 1.3) HIGH OXYGEN • 1.58 1.62 1.61 • PROBABLE HYPEROXIC MIX • STOP: DO NOT DESCEND • CELL AVG: 1.615 • GO TO O.C. FOR SANITY CHECK • GO BACK TO REBREATHER • PERFORM DILUENT FLUSH • CHECK PO2 • REPEAT UNTIL PROPER PO2 OBTAINED • IF PO2 REMAINS HIGH; BAILOUT 12b

  26. Both handsets turned off at Depth • 13

  27. Both handsets turned off at Depth • 13b • Turn handsets back on • DO NOT SELECT CALIBRATE • Check unit readouts

  28. Low Battery Warning on Primary • 14

  29. Low Battery Warning on Primary • 14b • Turn off Master • Check that secondary has become Master • Restart Primary which should now be slave • The primary handset and battery drives the solenoid • Switching should give you additional time to terminate dive.

  30. Master 1.3 • .60 .70 .65 You have just completed a diluent flush @ aprox. 60ft. Which sensors are reasonably accurate? What could be the problem ? How best do attempt to resolve this problem? 15

  31. Master 1.3 • You have just completed a diluent flush @ aprox. 60ft. • . Which sensors are reasonably accurate? • . What could be the problem ? • . How best do attempt to resolve this problem? • .60 .70 .65 • . Sensor 1 closest to accurate, 3 is next closest • As long as the gas was analyzed and sensors correctly calibrated • . probable water condensation on sensor faces. • . Diluent flush should help dry the sensor faces • Manual inject should keep condensation due to gas addition away • from sensor faces. 15b

  32. If you are utilizing Air as diluentWhat should sensor readout be when you perform a diluent flush @ apox. 100ft ? 16

  33. If you are utilizing Air as diluentWhat should sensor readout be when you perform a diluent flush @ apox. 100ft ? (99 / 33) + 1 = 4 ata 4 x .21 = .84 Be prepared to calculate PO2 of diluent for at least each atmosphere. 16b

  34. You are at 120 fw and perform a diluent flush (diluent is .21) • 1.02 1.05 .97 • Which sensor is most accurate? 17

  35. You are at 120 fw and perform a diluent flush (diluent is .21) • 1.02 1.05 .97 • Which sensor is most accurate? 130 ft would be 5 ata 5 x .21 = 1.05 So # 2 and #3 are more accurate. 17b

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