1. COCHRAN EMC-20H w/Helium
CONGRATULATIONS
ON YOUR NEW
COCHRAN EMC-20H w/Helium
DIVE COMPUTER
Cochran Undersea Technology a division of Cochran Consulting, Inc.
Copyright All rights reserved, Protected under one or more
Patents, Patents Pending, or Trademarks.

2. PLEASE SELECT THE PRESENTATION
YOU WOULD LIKE TO VIEW FROM THE BUTTONS BELOW.
1-BLEND TRIMIX
3-BLEND TRIMIX
1-PO2
W/TRIMIX
DILUENT
2-PO2
W/TRIMIX
DILUENT
EXIT

3. PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
THE FOLLOWING PRESENTATION WILL INTRODUCE YOU TO SOME OF THE BASIC FEATURES AND PROGRAMMING SKILLS TO GET THE MOST EFFECTIVE USE OF THE SINGLE GAS
COCHRAN EMC-20H.
PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
ALSO KNOW AND FOLLOW THE PRINCIPLES AND PRACTICES OF SAFE DIVING.

4. Locate the three side contacts.
TURN ME ON
SIDE CONTACTS:
Locate the three side contacts.
Contact #3
Contact #2
Contact #1

5. TO OPERATE, YOU WILL NEED A METAL OBJECT, SUCH AS A COIN OR DIVE KNIFE BLADE, AND YOUR FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

6. THE COCHRAN EMC-20H CAN TELL THE DIFFERENCE BETWEEN A METAL OBJECT, SALT WATER, FRESH WATER, AND YOUR WET FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

7. A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.
SIMPLY BRIDGING CONTACTS 1 AND 2 FOR A COUPLE OF SECONDS WITH YOUR WET FINGER ACTIVATES THE UNIT.
Contact #2
Contact #1
A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.

8. THE UNIT BEGINS A SELF-TEST TO INSURE THAT ALL SYSTEMS ARE OPERATING CORRECTLY AND ARE “GOOD TO GO.”
ALL DISPLAY SEGMENTS ARE VISIBLE AND 5 AUDIBLE SHORT BEEPS ARE PART OF THE SELF-TEST WHEN SUCCESSFULLY COMPLETED.

9. ALTITUDE APPEARS IN ASCENT BAR GRAPH
AFTER ACTIVATION AND PRIOR TO DESCENDING BELOW 5 FEET, THE UNIT DISPLAYS TEMPERATURE AND THE SURFACE INTERVAL CLOCK RUNS.
Air Temperature
Surface Time
Barometric
Altitude (2500 feet
per bar
No bars =
2 bars = )
ALTITUDE APPEARS IN ASCENT BAR GRAPH

10. THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
UPON COMPLETION OF THE SELF-TEST, THE UNIT ENTERS THE SURFACE INTERVAL MODE.
MAIN
SCREEN
THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
ALTERNATE
SCREEN

11. (Repetitive Dive Number)
IF YOU HAVE RESIDUAL NITROGEN, OR HAVE EXPERIENCED AN ALTITUDE CHANGE, THE SURFACE INTERVAL SCREEN WILL DISPLAY ADDITIONAL INFORMATION.
Dive of “Day”
(Repetitive Dive Number)
Time to Fly
(Hours before
safely flying)
Air Temperature
Bottom Time
(of the last dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the last dive)

12. ALTERNATE SURFACE INTERVAL SCREEN WITH
RESIDUAL NITROGEN
O2%
(of Default Blend)
Helium
Indicator
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

13. IF A DIVE IS NOT INITIATED WITHIN ONE HOUR, THE UNIT CONSERVES BATTERY POWER AND AUTOMATICALLY GOES TO SLEEP.

14. LET’S GO DIVING

15. AT 5 FT. OF DEPTH, THE DIVE MODE TAKES PRIORITY AND AUTOMATICALLY REPLACES OTHER PROGRAMMING AND DISPLAY MODES.

16. CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.
IF ANYTHING IS NOT UP TO THE HIGHEST OPERATING STANDARD, OR IF BATTERY POWER IS INADEQUATE, THE UNIT WILL TURN ITSELF OFF.
CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.

17. DURING A DIVE, THE FOLLOWING DATA IS AVAILABLE IN A LARGE, EASY
TO READ DISPLAY.

18. MAIN SCREEN VISIBLE DURING A DIVE
Note NDC Legend
Ascent Rate
(4 bars = fpm)
NDC Time Remain
(Time you can stay
at current depth without
Decompression)
Water Temperature
Bottom Time
(so far this dive)
Current PO2
Current Depth

19. ALTERNATE SCREEN THAT MAY BE
VIEWED DURING A DIVE
O2%
(of Current Blend)
Helium
Indicator
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

20. THE REMAIN TIME NUMBERS FLASH
A “TWO MINUTE WARNING” IS ISSUED WHEN NO–DECOMPRESSION TIME REACHES 2 MINUTES.
THE REMAIN TIME NUMBERS FLASH
THE WARNING LEGEND APPEARS AND FLASHES
WRONG SLIDE
AN AUDIBLE ALARM WILL BE ISSUED

21. SHOULD A NO-DECOMPRESSION LIMIT BE EXCEEDED, THE COMPUTER AUTOMATICALLY ENTERS THE DECOMPRESSION MODE.
STAYING AT THE SAME DEPTH OR DEEPER AFTER THE 2 MINUTE WARNING WILL CAUSE THE UNIT TO ENTER THE DECOMPRESSION MODE.

22. DECOMPRESSION MODE COCHRAN DOES NOT INTEND FOR THIS
UNIT TO BE DELIBERATELY USED FOR
DECOMPRESSION DIVING.
HOWEVER, IF YOU PLAN TO PERFORM
DECOMPRESSION DIVES, WE RECOMMEND THAT
YOU HAVE ADEQUATE TRAINING, BACK UP
TABLES, AND AT LEAST TWO IDENTICAL
COCHRAN COMPUTERS.

23. DECOMPRESSION MODE
WHILE IN DECOMPRESSION MODE, THE VALUES IN THE UPPER LEFT HAND REMAIN TIME BOX ALTERNATE BETWEEN THE TIME REQUIRED AT THAT CEILING DEPTH AND THE TOTAL TIME REQUIRED TO COMPLETE ALL DECO STOPS.
AT THE 10 FOOT CEILING, TOTAL TIME AND STOP TIMES MAY BE THE SAME AND APPEAR NOT TO ALTERNATE.

24. DECOMPRESSION MODE
THE CEILING REPRESENTS A DEPTH ABOVE WHICH THE DIVER MUST NOT ASCEND, UNTIL SUFFICIENT TIME HAS PASSED, IN ORDER TO MINIMIZE THE RISKS OF DECOMPRESSION SICKNESS.
THE DEPTH OF THE REQUIRED CEILINGS START AT 10 FEET AND INCREASE IN 10 FOOT INCREMENTS AS THE DECOMPRESSION OBLIGATION INCREASES.

25. IN DECOMPRESSION MODE, THE NDC LEGEND AND VALUES ARE REPLACED BY DECOMPRESSION TIMES, DEC.
NDC Time Remain
(Time you can stay at
current depth without
Decompression)
No-Decompression Time
Note NDC Legend
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Decompression Time
Note DEC Legend

26. THE TEMP LEGEND AND VALUES ARE REPLACED BY CEIL LEGEND AND VALUES.
Water Temperature
Note TEMP Legend
Deco Ceiling
Note CEIL Legend
Don’t go above this depth for optimum Decompression

27. IN THIS EXAMPLE, A DECO STOP IS REQUIRED AT 10 FEET FOR 20 MINUTES.
NOTE THAT THE NDC
LEGEND HAS CHANGED TO DEC
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Deco Ceiling

28. ALTERNATE SCREEN VIEWABLE DURING DECOMPRESSION
(Of current Blend)
Water Temperature
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

29. THE 10 MINUTE PERIOD FOLLOWING A DIVE IS CALLED THE POST-DIVE INTERVAL.
THE SURFACE INTERVAL SCREEN IS VISIBLE. THE SURF LEGEND WILL FLASH UNTIL THE 10 MINUTE POST-DIVE INTERVAL HAS PASSED.

30. DISPLAYED DATA (Post Dive Interval and Surface Interval) Dive of “Day”
(Repetitive Dive
Number)
Time to Fly
(Hours before safely flying)
Air Temperature
Bottom Time
(of the last Dive)
Surface Time
(Amount of time
since last Dive)
Maximum Depth
(of the last Dive)

31. NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
SHOULD ANOTHER DIVE BE STARTED BEFORE THE 10 MINUTE POST DIVE INTERVAL IS COMPLETE, THE DIVE WILL BE CONSIDERED AN EXTENSION OF THE PREVIOUS DIVE.
NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
PROGRAMMING IS DISABLED.

32. THE COCHRAN EMC-20H HAS MANY FEATURES THAT ENHANCE DIVER SAFETY WITH MANY USER PREFERENCES.
THE DIVER CAN CUSTOMIZE THE COMPUTER TO BETTER REFLECT THE DIVE CONDITIONS AND INDIVIDUAL STYLE OF DIVING.
MANY OF THESE FEATURES ARE PROGRAMMABLE AT THE DIVE SITE. OTHER FEATURES WILL REQUIRE THE ANALYST SOFTWARE INTERFACE.

33. TOUCH CONTACT PROGRAMMING MODE
CAN ONLY BE ACCESSED WHEN THE UNIT IS IN THE SURFACE INTERVAL.

34. NOW, GRAB THE BATTERY REPLACEMENT TOOL THAT WAS INCLUDED WITH YOUR COCHRAN EMC-20H.
IT CAN BE RECOGNIZED BECAUSE IT LOOKS AND SPENDS EXACTLY LIKE A U.S. QUARTER.
THIS FIRST TIME THROUGH THE PROCEDURE, WE ARE SIMPLY GOING TO LOOK AT THE SEVEN PROGRAMMING MENUS.

35. THE FIRST MENU TO APPEAR IS FOR PdP, PREDIVE PREDICTION.
WITH THE SURFACE INTERVAL SCREEN DISPLAYED, TOUCH OR BRIDGE CONTACTS 1 AND 2 WITH A COIN.
THE FIRST MENU TO APPEAR IS FOR PdP, PREDIVE PREDICTION.

36. ANOTHER SIMILAR TOUCH WITH A COIN BRINGS THE InF, INFORMATION MENU.

37. THE THIRD COIN TOUCH BRINGS THE dEP AL, DEPTH ALARM MENU.
(Depth Alarm set to 124 feet)

38. THE NEXT TOUCH BRINGS THE Con, CONSERVATISM MENU.
Conservatism set to 15%

39. THE FIFTH TOUCH BRINGS UP THE O2 1 MENU FOR SETTING BLEND #1 O2%.
O2 set to 16.0%

40. THE SIXTH TOUCH BRINGS UP THE HE 1 MENU FOR SETTING BLEND #1 HELIUM %.
Helium set to 70.0%

41. THE NEXT TOUCH BRINGS UP THE TAC, TACLITE DWELL OR “ON TIME” SETTING MENU.
On Time set to 10 seconds

42. THE EIGHTH TOUCH BRINGS THE LOG, LOGBOOK MENU.

43. ANOTHER TOUCH RETURNS YOU TO THE SURFACE INTERVAL SCREEN.

44. TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.
EACH PROGRAMMING OPTION OFFERS ADDITIONAL DATA OR OPPORTUNITIES FOR PROGRAMMING YOUR PERSONAL DIVING PREFERENCES.
TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.

45. NOW TOUCHING CONTACTS 1 AND 2 WITH A WET FINGER WILL ALLOW THE ADDITIONAL DATA TO APPEAR ON THE SCREEN.
FOR EXAMPLE…

46. (Based on Default Blend Set Point)
THE PREDICTED NDC TIME BEGIN AT 30 FEET, EACH ADDITIONAL WET FINGER TOUCH INCREASES THE PREDICT DEPTH BY 10 FEET.
Predict NDC Time
(Time you can
Stay at predict
Depth Without
Decompression)
Calculated PO2
(Based on Default Blend Set Point)
Predict Depth
AS SHOWN HERE, AFTER TWO MORE TOUCHES THE PREDICTED TIME IS FOR A DEPTH OF 50 FEET.

47. BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.
PRE-DIVE PREDICTIONS ARE EFFECTED BY RESIDUAL NITROGEN LOADING AND CHANGE WITH SURFACE INTERVAL TIME.
PREDICTIONS ARE TERMINATED WHEN THE NO-DECOMPRESSION TIME PREDICTION REACHES TWO MINUTES OR A DEPTH OF 320 FEET IS REACHED.
BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.

48. BRIDGING CONTACTS 1 & 2 WITH A WET FINGER WILL ACCESS THE INFORMATION SCREEN.
Mode Blend Indicator
(F1 = 1 FO2)
CNS Oxygen
Toxicity in %
Battery Voltage
(3.0 Volts)
OTU Oxygen
Toxicity in %
THE INFORMATION SCREEN GIVES DATA REGARDING CNS AND OTU OXYGEN TOXICITY ISSUES, UNIT CONFIGURATION AND BATTERY VOLTAGE.

49. TAPPING ON THE UNIT’S FACE ACCESSES THE ALTERNATE DISPLAY
Oxygen % of Default Blend
Helium % of
Default Blend
Nitrogen % of
Default Blend
THE ALTERNATE INFORMATION SCREEN GIVES DATA REGARDING OXYGEN, HELIUM AND NITROGEN PERCENTAGES OF THE DEFAULT BLEND.

50. THE NEXT 1 & 2 COIN TOUCH BRINGS UP THE DEPTH ALARM PROGRAMMING MENU.
The Digit being
Programmed will
Flash Until it
is set and you
Move on to the
next Digit.
THE NEXT WET FINGER 1 & 2 TOUCH STARTS THE 1’S DIGIT FLASHING.

51. WHEN FLASHING, THE DIGIT IS INCREASED BY ONE WITH EACH COIN TOUCH BETWEEN CONTACTS 2 & 3.
The Digit being
Programmed will
Flash

52. A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
THE NEXT 1 & 2 WET FINGER TOUCH STARTS THE 10’S DIGIT FLASHING AND MAKES IT AVAILABLE FOR CHANGE.
A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
TO PROGRAM THE 1OO’S DIGIT START IT FLASHING BY TOUCHING 1 & 2 WITH YOUR WET FINGER.
WITH THE 100’S DIGIT FLASHING, BRIDGE CONTACTS 2 & 3 WITH A COIN UNTIL THE DESIRED VALUE IS REACHED.

53. WHEN CONTACT 1 AND 2 ARE NEXT BRIDGED WITH A COIN, THE SCREEN ADVANCES TO THE NEXT MENU ITEM. ONCE THIS HAPPENS, THE VALUES PROGAMMED ARE STORED IN THE COMPUTER.
IT IS STRONGLY RECOMMENDED THAT YOU SCROLL THROUGH ALL OF THE PROGRAMMABLE SELECTIONS PRIOR TO BEGINNING A DIVE TO ENSURE THAT THE SETTINGS ARE AS INTENDED.

54. SUPPOSE THAT YOU’RE A BIT DEHYDRATED, A LITTLE FATIGUED, SOMEWHAT OVERWEIGHT, AND HAVE AN OLD INJURY. MAYBE YOU HAVE ANOTHER CONDITION WHICH MIGHT PREDISPOSE YOU TO DECOMPRESSION ILLNESS…..
IF SO…FOLLOW THE SAME PROCEDURE AND ADD A BIT OF CONSERVATISM TO YOUR DIVING. ADD FROM 0% - 50% TO ANY OR ALL DIVES.

55. THE NEXT 1 & 2 COIN TOUCH WILL END DEPTH ALARM PROGRAMMING AND OPEN THE MENU USED FOR PROGRAMMING A PERCENT OF ADDITIONAL CONSERVATISM.
Conservatism set to 15%

56. A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, O2 1
A SIMILAR SEQUENCE OF TOUCHING CONTACT 1 & 2 WITH A WET FINGER AND 2 & 3 WITH A COIN WILL ALLOW YOU TO PROGRAM THE 1’S AND 10’S DIGITS OF CONSERVATISM.
A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, O2 1
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE O2% IN BLEND #1.

57. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE O2% IN THE BLEND #1 FROM 5.0 TO 99.9%.
O2% set to 16.0%

58. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, HE 1.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE HELIUM % OF BLEND #1.

59. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE HELIUM % IN BLEND #1 FROM 0.0 TO 95.0%.
Helium set to 70.0%

60. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, TAC dl.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE TACLITE “ON TIME” OR DWELL.

61. THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER
THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER. THIS UNIQUE DESIGN LETS YOU READ THE DATA IN LOW-LIGHT CONDITIONS WITHOUT THE WORRIES OF OVER-DEPLETING THE BATTERY.
ALSO, “NO WORRIES MATE” ABOUT A SWITCH THAT COULD POTENTIALLY BREAK OR LEAK.
YOU SIMPLY PROGRAM THE LIGHT TO REMAIN ON FOR WHATEVER TIME YOU CHOOSE.

62. A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.
THE TACLITE FACTORY SETTING IS 10 SECONDS, YOU CAN CHANGE THIS TIME FROM 1-98 SECONDS. SETTING IT TO 00 AND THE TACLITE WILL NEVER TURN ON.
On Time set to 10 seconds
A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.

63. THE NEXT COIN TOUCH OF CONTACTS 1 & 2 OPENS THE LOGBOOK MODE.
Logbook Dive Number
THE WET FINGER BETWEEN 1 & 2 WILL ALLOW VIEWING OF DIVE DATA FOR THE MOST RECENT 1024 DIVES.

64. THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001
TAPPING THE FACE OF YOUR COCHRAN EMC-20H WILL ACTIVATE AN ALTERNATE SCREEN, WHICH DISPLAYS THE DATE AND TIME OF THE SELECTED DIVE.
Hour
00 to 24
Minutes
00 to 59
Day
Month
Year
THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001

65. IMPORTANT DATA FROM COMPLETED DIVES IS EASILY AVAILABLE ONCE IN THE LOGBOOK MODE.

66. MINIMUM WATER TEMPERATURE SURFACE INTERVAL BEFORE DIVE BOTTOM DIVE
OVERALL DIVE NUMBER
MINIMUM WATER TEMPERATURE
SURFACE INTERVAL BEFORE DIVE
BOTTOM DIVE
MINIMUM NDC TIME
FASTEST RATE OF ASCENT
MAXIMUM CEILING (DECO DIVE)
MAXIMUM DEC TIME (DECO DIVE)
ENDING BATTERY VOLTAGE
DATE AND TIME OF DIVE
CNS and OTU OXYGEN TOXICITY VALUES

67. PRIMARY LOGBOOK SCREEN
FOR A NORMAL DIVE
NDC Time Remain
(Minimum NDC time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Water Temperature
(Minimum recorded
during the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

68. ALTERNATE LOGBOOK SCREEN
FOR A NORMAL DIVE
O2%
(Default Blend)
Helium
Indicator
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

69. PRIMARY LOGBOOK SCREEN
FOR A DECO DIVE
DEC Time Remain
(Maximum Deco time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Deepest Deco Ceiling
(Recorded during
the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

70. ALTERNATE LOGBOOK SCREEN
FOR A DECO DIVE
O2%
(Default Blend)
Water Temperature
(Minimum recorded
during the dive)
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

71. YOU HAVE JUST COMPLETED A BRIEF PRESENTATION ON SOME OF THE MANY FEATURES AND BENEFITS OF THE COCHRAN EMC-20H COMPUTER.
YOUR OWNER’S MANUAL GOES INTO GREATER DETAIL REGARDING THESE AND OTHER VALUABLE FEATURES, ALL DESIGNED AND DEVELOPED TO SUPPORT A SAFER, MORE ENJOYABLE DIVING EXPERIENCE.

72. A COMPLETE COPY OF THE OWNER’S MANUAL
CAN BE OBTAINED FROM OUR WEBSITE.
VISIT
FIRST CLICK ON “PRODUCT MANUALS.”

73. VISIT YOUR LOCAL COCHRAN DEALER OR VISIT OUR WEB SITE
COCHRAN UNDERSEA TECHNOLOGY HAS SOLVED THE PROBLEM OF “OUTGROWING” YOUR COMPUTER.
VISIT YOUR LOCAL COCHRAN DEALER OR VISIT OUR WEB SITE
AND LEARN HOW YOUR COMPUTER CAN BE UPGRADED AND ENHANCED FOR MULTIPLE ENRICHED AIR NITROX APPLICATIONS.

74. HAPPY DIVING, HAVE FUN, AND MOST IMPORTANTLY, BE SAFE!
Click on the door to go back
to the main selection screen or
click on the stop sign to exit.

75. PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
THE FOLLOWING PRESENTATION WILL INTRODUCE YOU TO SOME OF THE BASIC FEATURES AND PROGRAMMING SKILLS TO GET THE MOST EFFECTIVE USE OF THE THREE GAS COCHRAN EMC-20H.
PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
ALSO KNOW AND FOLLOW THE PRINCIPLES AND PRACTICES OF SAFE DIVING.

76. Locate the three side contacts.
TURN ME ON
SIDE CONTACTS:
Locate the three side contacts.
Contact #3
Contact #2
Contact #1

77. TO OPERATE, YOU WILL NEED A METAL OBJECT, SUCH AS A COIN OR DIVE KNIFE BLADE, AND YOUR FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

78. THE COCHRAN EMC-20H CAN TELL THE DIFFERENCE BETWEEN A METAL OBJECT, SALT WATER, FRESH WATER, AND YOUR WET FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

79. A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.
SIMPLY BRIDGING CONTACTS 1 AND 2 FOR A COUPLE OF SECONDS WITH YOUR WET FINGER ACTIVATES THE UNIT.
Contact #2
Contact #1
A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.

80. THE UNIT BEGINS A SELF-TEST TO INSURE THAT ALL SYSTEMS ARE OPERATING CORRECTLY AND ARE “GOOD TO GO.”
ALL DISPLAY SEGMENTS ARE VISIBLE AND 5 AUDIBLE SHORT BEEPS ARE PART OF THE SELF-TEST WHEN SUCCESSFULLY COMPLETED.

81. ALTITUDE APPEARS IN ASCENT BAR GRAPH
AFTER ACTIVATION AND PRIOR TO DESCENDING BELOW 5 FEET, THE UNIT DISPLAYS TEMPERATURE AND THE SURFACE INTERVAL CLOCK RUNS.
Air Temperature
Surface Time
Barometric
Altitude (2500 feet
per bar
No bars =
2 bars = )
ALTITUDE APPEARS IN ASCENT BAR GRAPH

82. THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
UPON COMPLETION OF THE SELF-TEST, THE UNIT ENTERS THE SURFACE INTERVAL MODE.
MAIN
SCREEN
THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
ALTERNATE
SCREEN

83. (Repetitive Dive Number)
IF YOU HAVE RESIDUAL NITROGEN, OR HAVE EXPERIENCED AN ALTITUDE CHANGE, THE SURFACE INTERVAL SCREEN WILL DISPLAY ADDITIONAL INFORMATION.
Dive of “Day”
(Repetitive Dive Number)
Time to Fly
(Hours before
safely flying)
Air Temperature
Bottom Time
(of the last dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the last dive)

84. ALTERNATE SURFACE INTERVAL SCREEN WITH
RESIDUAL NITROGEN
O2%
(of Default Blend)
Helium
Indicator
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

85. IF A DIVE IS NOT INITIATED WITHIN ONE HOUR, THE UNIT CONSERVES BATTERY POWER AND AUTOMATICALLY GOES TO SLEEP.

86. LET’S GO DIVING

87. AT 5 FT. OF DEPTH, THE DIVE MODE TAKES PRIORITY AND AUTOMATICALLY REPLACES OTHER PROGRAMMING AND DISPLAY MODES.

88. CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.
IF ANYTHING IS NOT UP TO THE HIGHEST OPERATING STANDARD, OR IF BATTERY POWER IS INADEQUATE, THE UNIT WILL TURN ITSELF OFF.
CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.

89. DURING A DIVE, THE FOLLOWING DATA IS AVAILABLE IN A LARGE, EASY
TO READ DISPLAY.

90. MAIN SCREEN VISIBLE DURING A DIVE
Note NDC Legend
Ascent Rate
(4 bars = fpm)
NDC Time Remain
(Time you can stay
At current depth without
Decompression)
Water Temperature
Bottom Time
(so far this dive)
Current PO2
Current Depth

91. ALTERNATE SCREEN THAT MAY BE
VIEWED DURING A DIVE
O2%
(of Current Blend)
Helium
Indicator
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

92. THE REMAIN TIME NUMBERS FLASH
A “TWO MINUTE WARNING” IS ISSUED WHEN NO–DECOMPRESSION TIME REACHES 2 MINUTES.
THE REMAIN TIME NUMBERS FLASH
THE WARNING LEGEND APPEARS AND FLASHES
WRONG SLIDE
AN AUDIBLE ALARM WILL BE ISSUED

93. SHOULD A NO-DECOMPRESSION LIMIT BE EXCEEDED, THE COMPUTER AUTOMATICALLY ENTERS THE DECOMPRESSION MODE.
STAYING AT THE SAME DEPTH OR DEEPER AFTER THE 2 MINUTE WARNING WILL CAUSE THE UNIT TO ENTER THE DECOMPRESSION MODE.

94. DECOMPRESSION MODE COCHRAN DOES NOT INTEND FOR THIS
UNIT TO BE DELIBERATELY USED FOR
DECOMPRESSION DIVING.
HOWEVER, IF YOU PLAN TO PERFORM
DECOMPRESSION DIVES, WE RECOMMEND THAT
YOU HAVE ADEQUATE TRAINING, BACK UP
TABLES, AND AT LEAST TWO IDENTICAL
COCHRAN COMPUTERS.

95. DECOMPRESSION MODE
WHILE IN DECOMPRESSION MODE, THE VALUES IN THE UPPER LEFT HAND REMAIN TIME BOX ALTERNATE BETWEEN THE TIME REQUIRED AT THAT CEILING DEPTH AND THE TOTAL TIME REQUIRED TO COMPLETE ALL DECO STOPS.
AT THE 10 FOOT CEILING, TOTAL TIME AND STOP TIMES MAY BE THE SAME AND APPEAR NOT TO ALTERNATE.

96. DECOMPRESSION MODE
THE CEILING REPRESENTS A DEPTH ABOVE WHICH THE DIVER MUST NOT ASCEND, UNTIL SUFFICIENT TIME HAS PASSED, IN ORDER TO MINIMIZE THE RISKS OF DECOMPRESSION SICKNESS.
THE DEPTH OF THE REQUIRED CEILINGS START AT 10 FEET AND INCREASE IN 10 FOOT INCREMENTS AS THE DECOMPRESSION OBLIGATION INCREASES.

97. IN DECOMPRESSION MODE, THE NDC LEGEND AND VALUES ARE REPLACED BY DECOMPRESSION TIMES, DEC.
NDC Time Remain
(Time you can stay at
current depth without
Decompression)
No-Decompression Time
Note NDC Legend
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Decompression Time
Note DEC Legend

98. THE TEMP LEGEND AND VALUES ARE REPLACED BY CEIL LEGEND AND VALUES.
Water Temperature
Note TEMP Legend
Deco Ceiling
Note CEIL Legend
Don’t go above this depth for optimum Decompression

99. IN THIS EXAMPLE, THE DECO STOP IS REQUIRED AT 10 FEET FOR 20 MINUTES.
NOTE THAT THE NDC
LEGEND HAS CHANGED TO DEC
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Deco Ceiling

100. ALTERNATE SCREEN VIEWABLE DURING DECOMPRESSION
(of current Blend)
Water Temperature
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

101. THE 10 MINUTE PERIOD FOLLOWING A DIVE IS CALLED THE POST-DIVE INTERVAL.
THE SURFACE INTERVAL SCREEN IS VISIBLE. THE SURF LEGEND WILL FLASH UNTIL THE 10 MINUTE POST DIVE INTERVAL HAS PASSED.

102. DISPLAYED DATA (Post Dive Interval and Surface Interval) Dive of “Day”
(Repetitive Dive
Number)
Time to Fly
(Hours before safely flying)
Air Temperature
Bottom Time
(of the last Dive)
Surface Time
(Amount of time
since last Dive)
Maximum Depth
(of the last Dive)

103. NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
SHOULD ANOTHER DIVE BE STARTED BEFORE THE 10 MINUTE POST DIVE INTERVAL IS COMPLETE, THE DIVE WILL BE CONSIDERED AN EXTENSION OF THE PREVIOUS DIVE.
NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
PROGRAMMING IS DISABLED.

104. THE COCHRAN EMC-20H HAS MANY FEATURES THAT ENHANCE DIVER SAFETY WITH MANY USER PREFERENCES.
THE DIVER CAN CUSTOMIZE THE COMPUTER TO BETTER REFLECT THE DIVE CONDITIONS AND INDIVIDUAL STYLE OF DIVING.
MANY OF THESE FEATURES ARE PROGRAMMABLE AT THE DIVE SITE. OTHER FEATURES WILL REQUIRE THE ANALYST SOFTWARE INTERFACE.

105. TOUCH CONTACT PROGRAMMING MODE
CAN ONLY BE ACCESSED WHEN THE UNIT IS IN THE SURFACE INTERVAL.

106. NOW, GRAB THE BATTERY REPLACEMENT TOOL THAT WAS INCLUDED WITH YOUR COCHRAN EMC-20H.
IT CAN BE RECOGNIZED BECAUSE IT LOOKS AND SPENDS EXACTLY LIKE A U.S. QUARTER.
THIS FIRST TIME THROUGH THE PROCEDURE, WE ARE SIMPLY GOING TO LOOK AT THE TEN PROGRAMMING MENUS.

107. THE FIRST MENU TO APPEAR IS FOR PdP, PREDIVE PREDICTION.
WITH THE SURFACE INTERVAL SCREEN DISPLAYED, TOUCH OR BRIDGE CONTACTS 1 AND 2 WITH A COIN.
THE FIRST MENU TO APPEAR IS FOR PdP, PREDIVE PREDICTION.

108. ANOTHER SIMILAR TOUCH WITH A COIN BRINGS THE InF, INFORMATION MENU.

109. THE THIRD COIN TOUCH BRINGS THE dEP AL, DEPTH ALARM MENU.
(Depth Alarm set to 124 feet)

110. THE NEXT 1&2 COIN TOUCH WILL END DEPTH ALARM PROGRAMMING AND OPEN THE MENU USED FOR PROGRAMMING A PERCENT OF ADDITIONAL CONSERVATISM.
Conservatism set to 15%

111. THE FIFTH TOUCH BRINGS UP THE O2 1 MENU FOR SETTING BLEND #1 O2%.
O2 set to 16.0%

112. THE SIXTH TOUCH BRINGS UP THE HE 1 MENU FOR SETTING BLEND #1 Helium %.
Helium set to 70.0%

113. THE SEVENTH TOUCH BRINGS UP THE O2 1 MENU FOR SETTING BLEND #2 O2%.
Blend #2 set to 36.0% O2

114. THE EIGHTH TOUCH BRINGS UP THE HE 1 MENU FOR SETTING BLEND #2 Helium %.
set to 30.0%

115. THE NINTH TOUCH BRINGS UP THE dEC b, BLEND #2 TIME BENCHMARK MENU.
Benchmark set to
600 minutes
SO WHAT IS A BENCHMARK ?

116. THE NEXT TOUCH BRINGS UP THE dEC d, BLEND #2 DEPTH BENCHMARK MENU.
Benchmark set to
20 feet
SO WHAT IS A BENCHMARK ?

117. THE NEXT TOUCH BRINGS UP THE O2 3 MENU FOR SETTING BLEND #3 O2%.
Blend #3 set to 86.0% O2

118. THE NEXT TOUCH BRINGS UP THE HE 3 MENU FOR SETTING BLEND #3 Helium %.
set to 30.0%

119. THE NEXT TOUCH BRINGS UP THE dEC d3, BLEND #3 DEPTH BENCHMARK MENU.
Deco Blend Depth
Benchmark set to
0 feet
SO WHAT IS A BENCHMARK ?

120. THE NEXT TOUCH BRINGS UP THE TAC, TACLITE DWELL OR “ON TIME” MENU.
On Time set to 10 seconds

121. THE NEXT TOUCH BRINGS THE LOG LOGBOOK MENU.

122. ANOTHER TOUCH RETURNS YOU TO THE SURFACE INTERVAL SCREEN.

123. TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.
EACH PROGRAMMING OPTION OFFERS ADDITIONAL DATA OR OPPORTUNITIES FOR PROGRAMMING YOUR PERSONAL DIVING PREFERENCES.
TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.

124. NOW TOUCHING CONTACTS 1 AND 2 WITH A WET FINGER WILL ALLOW THE ADDITIONAL DATA TO APPEAR ON THE SCREEN.
FOR EXAMPLE…

125. (Based on Default Blend Set Point)
THE PREDICTED NDC TIME BEGIN AT 30 FEET, EACH ADDITIONAL WET FINGER TOUCH INCREASES THE PREDICT DEPTH BY 10 FEET.
Predict NDC Time
(Time you can stay
At predict depth
without
Decompression)
Calculated PO2
(Based on Default Blend Set Point)
Predict Depth
AS SHOWN HERE, AFTER TWO MORE TOUCHES THE PREDICTED TIME IS FOR A DEPTH OF 50 FEET.

126. BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.
PRE-DIVE PREDICTIONS ARE EFFECTED BY RESIDUAL NITROGEN LOADING AND CHANGE WITH SURFACE INTERVAL TIME.
PREDICTIONS ARE TERMINATED WHEN THE NO-DECOMPRESSION TIME PREDICTION REACHES TWO MINUTES OR A DEPTH OF 320 FEET IS REACHED.
BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.

127. BRIDGING CONTACTS 1 & 2 WITH A WET FINGER WILL ACCESS THE INFORMATION SCREEN.
Mode Blend Indicator
(F2 = 2 FO2)
CNS Oxygen
Toxicity in %
Battery Voltage
(3.0 Volts)
OTU Oxygen
Toxicity in %
THE INFORMATION SCREEN GIVES DATA REGARDING CNS AND OTU OXYGEN TOXICITY ISSUES, UNIT CONFIGURATION AND BATTERY VOLTAGE.

128. TAPPING ON THE UNIT’S FACE ACCESSES THE ALTERNATE DISPLAY
Oxygen % of Default Blend
Helium % of
Default Blend
Nitrogen % of
Default Blend
THE ALTERNATE INFORMATION SCREEN GIVES DATA REGARDING OXYGEN, HELIUM AND NITROGEN PERCENTAGES OF THE DEFAULT BLEND.

129. THE NEXT 1 & 2 COIN TOUCH BRINGS UP THE DEPTH ALARM PROGRAMMING MENU.
The Digit being
Programmed will
Flash Until it
is set and you
Move on to the
next Digit.
THE NEXT WET FINGER 1 & 2 TOUCH STARTS THE 1’S DIGIT FLASHING.

130. WHEN FLASHING, THE DIGIT IS INCREASED BY ONE WITH EACH COIN TOUCH BETWEEN CONTACTS 2 & 3.
The Digit being
Programmed will
Flash

131. A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
THE NEXT 1 & 2 WET FINGER TOUCH STARTS THE 10’S DIGIT FLASHING AND MAKES IT AVAILABLE FOR CHANGE.
A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
TO PROGRAM THE 1OO’S DIGIT START IT FLASHING BY TOUCHING 1 & 2 WITH YOUR WET FINGER.
WITH THE 100’S DIGIT FLASHING, BRIDGE CONTACTS 2 & 3 WITH A COIN UNTIL THE DESIRED VALUE IS REACHED.

132. WHEN CONTACT 1 AND 2 ARE NEXT BRIDGED WITH A COIN, THE SCREEN ADVANCES TO THE NEXT MENU. WHEN THIS HAPPENS, THE LAST VALUES PROGAMMED ARE STORED IN THE COMPUTER.
IT IS ALWAYS RECOMMENDED THAT YOU SCROLL THROUGH ALL OF THE PROGRAMMABLE MENUS PRIOR TO BEGINNING A DIVE TO ENSURE THAT THE LIMITS ARE AS INTENDED.

133. SUPPOSE THAT YOU’RE A BIT DEHYDRATED, A LITTLE FATIGUED, SOMEWHAT OVERWEIGHT, AND HAVE AN OLD INJURY. MAYBE YOU HAVE ANOTHER CONDITION WHICH MIGHT PREDISPOSE YOU TO DECOMPRESSION ILLNESS…..
IF SO…FOLLOW THE SAME PROCEDURE TO ADD A BIT OF CONSERVATISM TO YOUR DIVING. ADD FROM 0% - 50% TO ANY OR ALL DIVES.

134. THE NEXT 1 & 2 COIN TOUCH WILL END DEPTH ALARM PROGRAMMING AND OPEN THE MENU USED FOR PROGRAMMING A PERCENT OF CONSERVATISM.
Conservatism set to 15%

135. A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, O2 1
A SIMILAR SEQUENCE OF TOUCHING CONTACT 1 & 2 WITH A WET FINGER AND 2 & 3 WITH A COIN WILL ALLOW YOU TO PROGRAM THE 1’S AND 10’S DIGITS OF CONSERVATISM.
A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, O2 1
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE O2% IN BLEND #1.

136. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE O2% IN BLEND #1 FROM 5.0 TO 99.9%.
O2 set to 16.0%

137. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, HE 1.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE HELIUM % OF BLEND #1.

138. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE HELIUM % IN BLEND #1 FROM 0.0 TO 95.0%.
Helium set to 70.0%

139. THE NEXT 1 & 2 COIN TOUCH WILL END BLEND #1 O2% SETTING AND BRING UP THE O2 2 MENU WHERE YOU SET THE O2% FOR BLEND #2.

140. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE O2% IN BLEND #2 FROM 5.0 TO 99.9%.
Blend #2 set to 36.0%

141. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, HE 2.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE HELIUM % OF THE DECO BLEND.

142. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE HELIUM % IN BLEND #2 FROM 0.0 TO 95.0%.
Blend #2 Helium
set to 30.0%

143. WITH THE SAME SEQUENCE OF 1 & 2 WET FINGER TOUCHES AND 2 & 3 COIN TOUCHES, YOU SET BLEND #2 TIME BENCHMARK FROM 0 TO 999 MINUTES
Blend #2
Time Benchmark
set to 70 minutes
SO WHAT IS A BENCHMARK ?

144. THE NEXT CONTACT 1 & 2 COIN BRIDGE WILL TAKE YOU TO THE dEC d MENU WHERE YOU WILL BE ABLE TO CHANGE BLEND #2 DEPTH BENCHMARK.

145. FOLLOW THE SAME PROGRAMMING PROCEDURE TO CHANGE BLEND #2 DEPTH BENCHMARK FROM 0 TO 320 FEET.
set to 20 feet
SO WHAT IS A BENCHMARK ?

146. THE NEXT 1 & 2 COIN TOUCH WILL END BRING UP THE O2 3 MENU WHERE YOU SET THE O2% FOR THE BLEND #3.

147. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE O2% IN BLEND #3 FROM 5.0 TO 99.9%.
Blend #3 set to 86.0%

148. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, HE 3.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE HELIUM % OF BLEND #3.

149. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE HELIUM % IN BLEND #3 FROM 0.0 TO 95.0%.
Blend #3 Helium
set to 30.0%

150. THE NEXT CONTACT 1 & 2 COIN BRIDGE WILL TAKE YOU TO THE dEC d3 MENU WHERE YOU WILL BE ABLE TO CHANGE BLEND #3 DEPTH BENCHMARK.

151. FOLLOW THE SAME PROGRAMMING PROCEDURE TO CHANGE BLEND #3 DEPTH BENCHMARK FROM 0 TO 320 FEET.
set to 20 feet
SO WHAT IS A BENCHMARK ?

152. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, TAC dl.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE TACLITE “ON TIME” OR DWELL.

153. THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER
THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER. THIS UNIQUE DESIGN LETS YOU READ THE DATA IN LOW-LIGHT CONDITIONS WITHOUT THE WORRIES OF OVER-DEPLETING THE BATTERY.
ALSO, “NO WORRIES MATE” ABOUT A SWITCH THAT COULD POTENTIALLY BREAK OR LEAK.
YOU SIMPLY PROGRAM THE LIGHT TO REMAIN ON FOR WHATEVER TIME YOU CHOOSE.

154. A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.
THE TACLITE FACTORY SETTING IS 10 SECONDS, YOU CAN CHANGE THIS TIME FROM 1-98 SECONDS. SETTING IT TO 00 AND THE TACLITE WILL NEVER TURN ON.
On Time set to 10 seconds
A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.

155. THE NEXT COIN TOUCH OF CONTACTS 1 & 2 OPENS THE LOGBOOK MODE.
Logbook Dive Number
THE WET FINGER BETWEEN 1 & 2 WILL ALLOW VIEWING OF DIVE DATA FOR THE MOST RECENT 512 DIVES.

156. THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001
TAPPING THE FACE OF YOUR COCHRAN EMC-20H WILL ACTIVATE AN ALTERNATE SCREEN, WHICH DISPLAYS THE DATE AND TIME OF THE SELECTED DIVE.
Hour
00 to 24
Minutes
00 to 59
Day
Month
Year
THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001

157. IMPORTANT DATA FROM COMPLETED DIVES IS EASILY AVAILABLE ONCE IN THE LOGBOOK MODE.

158. MINIMUM WATER TEMPERATURE SURFACE INTERVAL BEFORE DIVE BOTTOM DIVE
OVERALL DIVE NUMBER
MINIMUM WATER TEMPERATURE
SURFACE INTERVAL BEFORE DIVE
BOTTOM DIVE
MINIMUM NDC TIME
FASTEST RATE OF ASCENT
MAXIMUM CEILING (DECO DIVE)
MAXIMUM DEC TIME (DECO DIVE)
ENDING BATTERY VOLTAGE
DATE AND TIME OF DIVE
CNS and OTU OXYGEN TOXICITY VALUES

159. PRIMARY LOGBOOK SCREEN
FOR A NORMAL DIVE
NDC Time Remain
(Minimum NDC time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Water Temperature
(Minimum recorded
during the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

160. ALTERNATE LOGBOOK SCREEN
FOR A NORMAL DIVE
O2%
(Default Blend)
Helium
Indicator
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

161. PRIMARY LOGBOOK SCREEN
FOR A DECO DIVE
DEC Time Remain
(Maximum Deco time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Deepest Deco Ceiling
(Recorded during
the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

162. ALTERNATE LOGBOOK SCREEN
FOR A DECO DIVE
O2%
(Default Blend)
Water Temperature
(Minimum recorded
during the dive)
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

163. YOU HAVE JUST COMPLETED A BRIEF PRESENTATION ON SOME OF THE MANY FEATURES AND BENEFITS OF THE COCHRAN EMC-20H COMPUTER.
YOUR OWNER’S MANUAL GOES INTO GREATER DETAIL REGARDING THESE AND OTHER VALUABLE FEATURES, ALL DESIGNED AND DEVELOPED TO SUPPORT A SAFER, MORE ENJOYABLE DIVING EXPERIENCE.

164. A COMPLETE COPY OF THE OWNER’S MANUAL
CAN BE OBTAINED FROM OUR WEBSITE.
VISIT
FIRST CLICK ON “PRODUCT MANUALS.”

165. HAPPY DIVING, HAVE FUN, AND MOST IMPORTANTLY, BE SAFE!
Click on the door to go back
to the main selection screen or
click on the stop sign to exit.

166. WHAT ARE BENCHMARKS?
BENCHMARKS ARE CONDITIONS THAT MUST BE SATISFIED BEFORE THE GAS SWITCH FROM THE DEFAULT BLEND TO THE DECO BLEND WILL OCCUR.
THE “Dec b” BENCHMARK IS THE BOTTOM TIME OF THE DIVE AFTER WHICH THE GAS SWITCHING WILL BE ENABLED. ONCE THE PROGRAMMED TIME HAS BEEN SATISFIED, THE GAS SWITCH WILL BE CONTROLLED BY DEPTH
THE “Dec d” BENCHMARK IS THE DEPTH OF THE GAS SWITCH. ONCE THE DIVER ASCENDS ABOVE THE PROGRAMMED DEPTH, THE GAS SWITCH FROM THE DEFAULT BLEND TO THE DECO BLEND WILL OCCUR. IF BENCHMARK “Dec b” IS NOT SATISFIED THERE WILL NOT BE A GAS SWITCH.
Click here to return to Touch Contact Programming
Return

167. PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
THE FOLLOWING PRESENTATION WILL INTRODUCE YOU TO SOME OF THE BASIC FEATURES AND PROGRAMMING SKILLS TO GET THE MOST EFFECTIVE USE OF THE SINGLE PO2 COCHRAN
EMC-20H.
PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
ALSO KNOW AND FOLLOW THE PRINCIPLES AND PRACTICES OF SAFE DIVING.

168. Locate the three side contacts.
TURN ME ON
SIDE CONTACTS:
Locate the three side contacts.
Contact #3
Contact #2
Contact #1

169. TO OPERATE, YOU WILL NEED A METAL OBJECT, SUCH AS A COIN OR DIVE KNIFE BLADE, AND YOUR FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

170. THE COCHRAN EMC-20H CAN TELL THE DIFFERENCE BETWEEN A METAL OBJECT, SALT WATER, FRESH WATER, AND YOUR WET FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

171. A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.
SIMPLY BRIDGING CONTACTS 1 AND 2 FOR A COUPLE OF SECONDS WITH YOUR WET FINGER ACTIVATES THE UNIT.
Contact #2
Contact #1
A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.

172. THE UNIT BEGINS A SELF-TEST TO INSURE THAT ALL SYSTEMS ARE OPERATING CORRECTLY AND ARE “GOOD TO GO.”
ALL DISPLAY SEGMENTS ARE VISIBLE AND 5 AUDIBLE SHORT BEEPS ARE PART OF THE SELF-TEST WHEN SUCCESSFULLY COMPLETED.

173. ALTITUDE APPEARS IN ASCENT BAR GRAPH
AFTER ACTIVATION AND PRIOR TO DESCENDING BELOW 5 FEET, THE UNIT DISPLAYS TEMPERATURE AND THE SURFACE INTERVAL CLOCK RUNS.
Air Temperature
Surface Time
Barometric
Altitude (2500 feet
per bar
No bars =
2 bars = )
ALTITUDE APPEARS IN ASCENT BAR GRAPH

174. THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
UPON COMPLETION OF THE SELF-TEST, THE UNIT ENTERS THE SURFACE INTERVAL MODE.
MAIN
SCREEN
THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
ALTERNATE
SCREEN

175. (Repetitive Dive Number)
IF YOU HAVE RESIDUAL NITROGEN, OR HAVE EXPERIENCED AN ALTITUDE CHANGE, THE SURFACE INTERVAL SCREEN WILL DISPLAY ADDITIONAL INFORMATION.
Dive of “Day”
(Repetitive Dive Number)
Time to Fly
(Hours before
safely flying)
Air Temperature
Bottom Time
(of the last dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the last dive)

176. ALTERNATE SURFACE INTERVAL SCREEN WITH RESIDUAL NITROGEN
PO2 in ATA
(Default Blend Set Point)
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

177. IF A DIVE IS NOT INITIATED WITHIN ONE HOUR, THE UNIT CONSERVES BATTERY POWER AND AUTOMATICALLY GOES TO SLEEP.

178. LET’S GO DIVING

179. AT 5 FT. OF DEPTH, THE DIVE MODE TAKES PRIORITY AND AUTOMATICALLY REPLACES OTHER PROGRAMMING AND DISPLAY MODES.

180. CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.
IF ANYTHING IS NOT UP TO THE HIGHEST OPERATING STANDARD, OR IF BATTERY POWER IS INADEQUATE, THE UNIT WILL TURN ITSELF OFF.
CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.

181. DURING A DIVE, THE FOLLOWING DATA IS AVAILABLE IN A LARGE, EASY
TO READ DISPLAY.

182. MAIN SCREEN VISIBLE DURING A DIVE
Note NDC Legend
Ascent Rate
(1 bar = fpm)
NDC Time Remain
(Time you can stay
At current depth without
Decompression)
Water Temperature
Bottom Time
(so far this dive)
Current FO2
Current Depth

183. ALTERNATE SCREEN THAT MAY BE VIEWED DURING A DIVE
PO2 in ATA
(of current Blend Set Point)
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

184. THE REMAIN TIME NUMBERS FLASH
A “TWO MINUTE WARNING” IS ISSUED WHEN NO–DECOMPRESSION TIME REACHES 2 MINUTES.
THE REMAIN TIME NUMBERS FLASH
THE WARNING LEGEND APPEARS AND FLASHES
WRONG SLIDE
AN AUDIBLE ALARM WILL BE ISSUED

185. SHOULD A NO-DECOMPRESSION LIMIT BE EXCEEDED, THE COMPUTER AUTOMATICALLY ENTERS THE DECOMPRESSION MODE.
STAYING AT THE SAME DEPTH OR DEEPER AFTER THE 2 MINUTE WARNING WILL CAUSE THE UNIT TO ENTER THE DECOMPRESSION MODE.

186. DECOMPRESSION MODE COCHRAN DOES NOT INTEND FOR THIS
UNIT TO BE DELIBERATELY USED FOR
DECOMPRESSION DIVING.
HOWEVER, IF YOU PLAN TO PERFORM
DECOMPRESSION DIVES, WE RECOMMEND THAT
YOU HAVE ADEQUATE TRAINING, BACK UP
TABLES, AND AT LEAST TWO IDENTICAL
COCHRAN COMPUTERS.

187. DECOMPRESSION MODE
WHILE IN DECOMPRESSION MODE, THE VALUES IN THE UPPER LEFT HAND REMAIN TIME BOX ALTERNATE BETWEEN THE TIME REQUIRED AT THAT CEILING DEPTH AND THE TOTAL TIME REQUIRED TO COMPLETE ALL DECO STOPS.
AT THE 10 FOOT CEILING, TOTAL TIME AND STOP TIMES MAY BE THE SAME AND APPEAR NOT TO ALTERNATE.

188. DECOMPRESSION MODE
THE CEILING REPRESENTS A DEPTH ABOVE WHICH THE DIVER MUST NOT ASCEND, UNTIL SUFFICIENT TIME HAS PASSED, IN ORDER TO MINIMIZE THE RISKS OF DECOMPRESSION SICKNESS.
THE DEPTH OF THE REQUIRED CEILINGS START AT 10 FEET AND INCREASE IN 10 FOOT INCREMENTS AS THE DECOMPRESSION OBLIGATION INCREASES.

189. IN DECOMPRESSION MODE, THE NDC LEGEND AND VALUES ARE REPLACED BY DECOMPRESSION TIMES, DEC.
NDC Time Remain
(Time you can stay at
current depth without
Decompression)
No-Decompression Time
Note NDC Legend
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Decompression Time
Note DEC Legend

190. THE TEMP LEGEND AND VALUES ARE REPLACED BY CEIL LEGEND AND VALUES.
Water Temperature
Note TEMP Legend
Deco Ceiling
Note CEIL Legend
Don’t go above this depth for optimum Decompression

191. IN THIS EXAMPLE, A DECO STOP IS REQUIRED AT 20 FEET FOR 12 MINUTES.
NOTE THAT THE NDC
LEGEND HAS CHANGED TO DEC
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Deco Ceiling

192. ALTERNATE SCREEN VIEWABLE DURING DECOMPRESSION
PO2 in ATA
(of current Blend
Set Point)
Water Temperature
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

193. THE 10 MINUTE PERIOD FOLLOWING A DIVE IS CALLED THE POST-DIVE INTERVAL.
THE SURFACE INTERVAL SCREEN IS VISIBLE. THE SURF LEGEND WILL FLASH UNTIL THE 10 MINUTE POST-DIVE INTERVAL HAS PASSED.

194. DISPLAYED DATA (Post Dive Interval and Surface Interval) Dive of “Day”
(Repetitive Dive
Number)
Time to Fly
(Hours before safely flying)
Air Temperature
Bottom Time
(of the last Dive)
Surface Time
(Amount of time
since last Dive)
Maximum Depth
(of the last Dive)

195. NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
SHOULD ANOTHER DIVE BE STARTED BEFORE THE 10 MINUTE POST DIVE INTERVAL IS COMPLETE, THE DIVE WILL BE CONSIDERED AN EXTENSION OF THE PREVIOUS DIVE.
NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
PROGRAMMING IS DISABLED.

196. THE COCHRAN EMC-20H HAS MANY FEATURES THAT ENHANCE DIVER SAFETY WITH MANY USER PREFERENCES.
THE DIVER CAN CUSTOMIZE THE COMPUTER TO BETTER REFLECT THE DIVE CONDITIONS AND INDIVIDUAL STYLE OF DIVING.
MANY OF THESE FEATURES ARE PROGRAMMABLE AT THE DIVE SITE. OTHER FEATURES WILL REQUIRE THE ANALYST SOFTWARE INTERFACE.

197. TOUCH CONTACT PROGRAMMING MODE
CAN ONLY BE ACCESSED WHEN THE UNIT IS IN THE SURFACE INTERVAL.

198. NOW, GRAB THE BATTERY REPLACEMENT TOOL THAT WAS INCLUDED WITH YOUR COCHRAN EMC-20H.
IT CAN BE RECOGNIZED BECAUSE IT LOOKS AND SPENDS EXACTLY LIKE A U.S. QUARTER.
THIS FIRST TIME THROUGH THE PROCEDURE, WE ARE SIMPLY GOING TO LOOK AT THE EIGHT PROGRAMMING MENUS.

199. WITH THE SURFACE INTERVAL SCREEN DISPLAYED, TOUCH OR BRIDGE CONTACTS 1 AND 2 WITH A COIN.
FO2
SCREEN
PO2
SCREEN
THE FIRST MENU TO APPEAR IS FOR SELECTING EITHER THE FO2 OR PO2 OPERATING MODE.

200. TOUCH OR BRIDGE CONTACTS 1 AND 2 AGAIN WITH A COIN.
THE SECOND MENU TO APPEAR IS FOR PdP, PREDIVE PREDICTION.

201. ANOTHER SIMILAR TOUCH WITH A COIN BRINGS THE InF, INFORMATION MENU.

202. THE FORTH COIN TOUCH BRINGS THE dEP AL, DEPTH ALARM MENU.
(Depth Alarm set to 124 feet)

203. THE NEXT TOUCH BRINGS THE Con, CONSERVATISM MENU.
Conservatism set to 15%

204. THE SIXTH TOUCH BRINGS UP THE PO2 1 MENU FOR SETTING BLEND#1 PO2.
Blend #1 set to 0.70 ATA

205. THE SEVENTH TOUCH BRINGS UP THE O2 1 MENU FOR SETTING THE DEFAULT BLEND O2%.
O2 set to 16.0%

206. THE EIGHTH TOUCH BRINGS UP THE HE 1 MENU FOR SETTING THE DEFAULT BLEND Helium %.
Helium set to 70.0%

207. THE NEXT TOUCH BRINGS UP THE TAC, TACLITE DWELL OR “ON TIME” SETTING MENU.
On Time set to 10 seconds

208. THE TENTH TOUCH BRINGS THE LOG, LOGBOOK MENU.

209. ANOTHER TOUCH RETURNS YOU TO THE SURFACE INTERVAL SCREEN.

210. TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.
EACH PROGRAMMING OPTION OFFERS ADDITIONAL DATA OR OPPORTUNITIES FOR PROGRAMMING YOUR PERSONAL DIVING PREFERENCES.
TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.

211. NOW TOUCHING CONTACTS 1 AND 2 WITH A WET FINGER WILL ALLOW THE ADDITIONAL DATA TO APPEAR ON THE SCREEN.
FOR EXAMPLE…

212. THE PREDICTED NDC TIME BEGIN AT 30 FEET, EACH ADDITIONAL WET FINGER TOUCH INCREASES THE PREDICT DEPTH BY 10 FEET.
Predict NDC Time
(Time you can
Stay at predict
Depth Without
Decompression)
PO2 Set Point
Predict Depth
AS SHOWN HERE, AFTER TWO MORE TOUCHES THE PREDICTED TIME IS FOR A DEPTH OF 50 FEET.

213. BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.
PRE-DIVE PREDICTIONS ARE EFFECTED BY RESIDUAL NITROGEN LOADING AND CHANGE WITH SURFACE INTERVAL TIME.
PREDICTIONS ARE TERMINATED WHEN THE NO-DECOMPRESSION TIME PREDICTION REACHES TWO MINUTES OR A DEPTH OF 320 FEET IS REACHED.
BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.

214. BRIDGING CONTACTS 1 & 2 WITH A WET FINGER WILL ACCESS THE INFORMATION SCREEN.
Mode Blend Indicator
(P1 = 1 PO2)
CNS Oxygen
Toxicity in %
Battery Voltage
(3.0 Volts)
OTU Oxygen
Toxicity in %
THE INFORMATION SCREEN GIVES DATA REGARDING CNS AND OTU OXYGEN TOXICITY ISSUES, UNIT CONFIGURATION AND BATTERY VOLTAGE.

215. TAPPING ON THE UNIT’S FACE ACCESSES THE ALTERNATE DISPLAY
Oxygen % of Default Blend
Helium % of
Default Blend
Nitrogen % of
Default Blend
THE ALTERNATE INFORMATION SCREEN GIVES DATA REGARDING OXYGEN, HELIUM AND NITROGEN PERCENTAGES OF THE DEFAULT BLEND.

216. THE NEXT 1 & 2 COIN TOUCH BRINGS UP THE DEPTH ALARM PROGRAMMING MENU.
The Digit being
Programmed will
Flash Until it
is set and you
Move on to the
next Digit.
THE NEXT WET FINGER 1 & 2 TOUCH STARTS THE 1’S DIGIT FLASHING.

217. WHEN FLASHING, THE DIGIT IS INCREASED BY ONE WITH EACH COIN TOUCH BETWEEN CONTACTS 2 & 3.
The Digit being
Programmed will
Flash

218. A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
THE NEXT 1 & 2 WET FINGER TOUCH STARTS THE 10’S DIGIT FLASHING AND MAKES IT AVAILABLE FOR CHANGE.
A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
TO PROGRAM THE 1OO’S DIGIT START IT FLASHING BY TOUCHING 1 & 2 WITH YOUR WET FINGER.
WITH THE 100’S DIGIT FLASHING, BRIDGE CONTACTS 2 & 3 WITH A COIN UNTIL THE DESIRED VALUE IS REACHED.

219. WHEN CONTACT 1 AND 2 ARE NEXT BRIDGED WITH A COIN, THE SCREEN ADVANCES TO THE NEXT MENU ITEM. ONCE THIS HAPPENS, THE VALUES PROGAMMED ARE STORED IN THE COMPUTER.
IT IS STRONGLY RECOMMENDED THAT YOU SCROLL THROUGH ALL OF THE PROGRAMMABLE SELECTIONS PRIOR TO BEGINNING A DIVE TO ENSURE THAT THE SETTINGS ARE AS INTENDED.

220. SUPPOSE THAT YOU’RE A BIT DEHYDRATED, A LITTLE FATIGUED, SOMEWHAT OVERWEIGHT, AND HAVE AN OLD INJURY. MAYBE YOU HAVE ANOTHER CONDITION WHICH MIGHT PREDISPOSE YOU TO DECOMPRESSION ILLNESS…..
IF SO…FOLLOW THE SAME PROCEDURE AND ADD A BIT OF CONSERVATISM TO YOUR DIVING. ADD FROM 0% - 50% TO ANY OR ALL DIVES.

221. THE NEXT 1 & 2 COIN TOUCH WILL END DEPTH ALARM PROGRAMMING AND OPEN THE MENU USED FOR PROGRAMMING A PERCENT OF ADDITIONAL CONSERVATISM.
Conservatism set to 15%

222. A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, PO2 1
A SIMILAR SEQUENCE OF TOUCHING CONTACT 1 & 2 WITH A WET FINGER AND 2 & 3 WITH A COIN WILL ALLOW YOU TO PROGRAM THE 1’S AND 10’S DIGITS OF CONSERVATISM.
A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, PO2 1
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE PO2 IN THE DEFAULT BLEND.

223. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE PO2 OF THE DEFAULT BLEND FROM TO ATA.
PO2 set to 0.70 ATA

224. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, O2 1.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE OXYGEN PERCENTAGE OF THE DEFAULT BLEND DILUENT.

225. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE O2% IN THE DEFAULT BLEND DILUENT FROM TO 99.9%.
O2 set to 16.0%

226. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, HE 1.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE HELIUM PERCENTAGE OF THE DEFAULT BLEND DILUENT.

227. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE HELIUM % IN THE DEFAULT BLEND DILUENT FROM TO 95.0%.
Helium set to 70.0%

228. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, TAC dl.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE TACLITE “ON TIME” OR DWELL.

229. THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER
THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER. THIS UNIQUE DESIGN LETS YOU READ THE DATA IN LOW-LIGHT CONDITIONS WITHOUT THE WORRIES OF OVER-DEPLETING THE BATTERY.
ALSO, “NO WORRIES MATE” ABOUT A SWITCH THAT COULD POTENTIALLY BREAK OR LEAK.
YOU SIMPLY PROGRAM THE LIGHT TO REMAIN ON FOR WHATEVER TIME YOU CHOOSE.

230. A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.
THE TACLITE FACTORY SETTING IS 10 SECONDS, YOU CAN CHANGE THIS TIME FROM 1-98 SECONDS. SETTING IT TO 00 AND THE TACLITE WILL NEVER TURN ON.
On Time set to 10 seconds
A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.

231. THE NEXT COIN TOUCH OF CONTACTS 1 & 2 OPENS THE LOGBOOK MODE.
Logbook Dive Number
THE WET FINGER BETWEEN 1 & 2 WILL ALLOW VIEWING OF DIVE DATA FOR THE MOST RECENT 512 DIVES.

232. THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001
TAPPING THE FACE OF YOUR COCHRAN EMC-20H WILL ACTIVATE AN ALTERNATE SCREEN, WHICH DISPLAYS THE DATE AND TIME OF THE SELECTED DIVE.
Hour
00 to 24
Minutes
00 to 59
Day
Month
Year
THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001

233. IMPORTANT DATA FROM COMPLETED DIVES IS EASILY AVAILABLE ONCE IN THE LOGBOOK MODE.

234. MINIMUM WATER TEMPERATURE SURFACE INTERVAL BEFORE DIVE BOTTOM DIVE
OVERALL DIVE NUMBER
MINIMUM WATER TEMPERATURE
SURFACE INTERVAL BEFORE DIVE
BOTTOM DIVE
MINIMUM NDC TIME
FASTEST RATE OF ASCENT
MAXIMUM CEILING (DECO DIVE)
MAXIMUM DEC TIME (DECO DIVE)
ENDING BATTERY VOLTAGE
DATE AND TIME OF DIVE
CNS and OTU OXYGEN TOXICITY VALUES

235. PRIMARY LOGBOOK SCREEN
FOR A NORMAL DIVE
NDC Time Remain
(Minimum NDC time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Water Temperature
(Minimum recorded
during the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

236. ALTERNATE LOGBOOK SCREEN FOR A NORMAL DIVE
PO2 in ATA
(Default Blend Set Point)
Helium
Indicator
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

237. PRIMARY LOGBOOK SCREEN
FOR A DECO DIVE
DEC Time Remain
(Maximum Deco time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Deepest Deco Ceiling
(Recorded during
the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

238. ALTERNATE LOGBOOK SCREEN FOR A DECO DIVE
PO2 in ATA
(Default Blend Set Point)
Water Temperature
(Minimum recorded
during the dive)
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

239. YOU HAVE JUST COMPLETED A BRIEF PRESENTATION ON SOME OF THE MANY FEATURES AND BENEFITS OF THE COCHRAN EMC-20H COMPUTER.
YOUR OWNER’S MANUAL GOES INTO GREATER DETAIL REGARDING THESE AND OTHER VALUABLE FEATURES, ALL DESIGNED AND DEVELOPED TO SUPPORT A SAFER, MORE ENJOYABLE DIVING EXPERIENCE.

240. A COMPLETE COPY OF THE OWNER’S MANUAL
CAN BE OBTAINED FROM OUR WEBSITE.
VISIT
FIRST CLICK ON “PRODUCT MANUALS.”

241. VISIT YOUR LOCAL COCHRAN DEALER OR VISIT OUR WEB SITE
COCHRAN UNDERSEA TECHNOLOGY HAS SOLVED THE PROBLEM OF “OUTGROWING” YOUR COMPUTER.
VISIT YOUR LOCAL COCHRAN DEALER OR VISIT OUR WEB SITE
AND LEARN HOW YOUR COMPUTER CAN BE UPGRADED AND ENHANCED FOR MULTIPLE ENRICHED AIR NITROX APPLICATIONS.

242. HAPPY DIVING, HAVE FUN, AND MOST IMPORTANTLY, BE SAFE!
Click on the door to go back
to the main selection screen or
click on the stop sign to exit.

243. PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
THE FOLLOWING PRESENTATION WILL INTRODUCE YOU TO SOME OF THE BASIC FEATURES AND PROGRAMMING SKILLS TO GET THE MOST EFFECTIVE USE OF THE TWO PO2 COCHRAN
EMC-20H.
PLEASE READ AND UNDERSTAND THE OWNER’S MANUAL.
ALSO KNOW AND FOLLOW THE PRINCIPLES AND PRACTICES OF SAFE DIVING.

244. Locate the three side contacts.
TURN ME ON
SIDE CONTACTS:
Locate the three side contacts.
Contact #3
Contact #2
Contact #1

245. TO OPERATE, YOU WILL NEED A METAL OBJECT, SUCH AS A COIN OR DIVE KNIFE BLADE, AND YOUR FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

246. THE COCHRAN EMC-20H CAN TELL THE DIFFERENCE BETWEEN A METAL OBJECT, SALT WATER, FRESH WATER, AND YOUR WET FINGER.
SIDE CONTACTS:
Contact #3
Contact #2
Contact #1

247. A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.
SIMPLY BRIDGING CONTACTS 1 AND 2 FOR A COUPLE OF SECONDS WITH YOUR WET FINGER ACTIVATES THE UNIT.
Contact #2
Contact #1
A SHORT SERIES OF BEEPS SIGNALS ACTIVATION.

248. THE UNIT BEGINS A SELF-TEST TO INSURE THAT ALL SYSTEMS ARE OPERATING CORRECTLY AND ARE “GOOD TO GO.”
ALL DISPLAY SEGMENTS ARE VISIBLE AND 5 AUDIBLE SHORT BEEPS ARE PART OF THE SELF-TEST WHEN SUCCESSFULLY COMPLETED.

249. ALTITUDE APPEARS IN ASCENT BAR GRAPH
AFTER ACTIVATION AND PRIOR TO DESCENDING BELOW 5 FEET, THE UNIT DISPLAYS TEMPERATURE AND THE SURFACE INTERVAL CLOCK RUNS.
Air Temperature
Surface Time
Barometric
Altitude (2500 feet
per bar
No bars =
2 bars = )
ALTITUDE APPEARS IN ASCENT BAR GRAPH

250. THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
UPON COMPLETION OF THE SELF-TEST, THE UNIT ENTERS THE SURFACE INTERVAL MODE.
MAIN
SCREEN
THE ALTERNATE SCREEN CAN BE VIEWED BY TAPPING ON THE FACE OF THE UNIT.
ALTERNATE
SCREEN

251. (Repetitive Dive Number)
IF YOU HAVE RESIDUAL NITROGEN, OR HAVE EXPERIENCED AN ALTITUDE CHANGE, THE SURFACE INTERVAL SCREEN WILL DISPLAY ADDITIONAL INFORMATION.
Dive of “Day”
(Repetitive Dive Number)
Time to Fly
(Hours before
safely flying)
Air Temperature
Bottom Time
(of the last dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the last dive)

252. ALTERNATE SURFACE INTERVAL SCREEN WITH RESIDUAL NITROGEN
PO2 in ATA
(Default Blend Set Point)
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)

253. IF A DIVE IS NOT INITIATED WITHIN ONE HOUR, THE UNIT CONSERVES BATTERY POWER AND AUTOMATICALLY GOES TO SLEEP.

254. LET’S GO DIVING

255. AT 5 FT. OF DEPTH, THE DIVE MODE TAKES PRIORITY AND AUTOMATICALLY REPLACES OTHER PROGRAMMING AND DISPLAY MODES.

256. CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.
IF ANYTHING IS NOT UP TO THE HIGHEST OPERATING STANDARD, OR IF BATTERY POWER IS INADEQUATE, THE UNIT WILL TURN ITSELF OFF.
CHECK YOUR OWNER’S MANUAL FOR BATTERY REPLACEMENT DETAILS.

257. DURING A DIVE, THE FOLLOWING DATA IS AVAILABLE IN A LARGE, EASY
TO READ DISPLAY.

258. MAIN SCREEN VISIBLE DURING A DIVE
Note NDC Legend
Ascent Rate
(1 bar = fpm)
NDC Time Remain
(Time you can stay
At current depth without
Decompression)
Water Temperature
Bottom Time
(so far this dive)
Current FO2
Current Depth

259. ALTERNATE SCREEN THAT MAY BE VIEWED DURING A DIVE
PO2 in ATA
(of Current Blend Set Point)
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

260. THE REMAIN TIME NUMBERS FLASH
A “TWO MINUTE WARNING” IS ISSUED WHEN NO–DECOMPRESSION TIME REACHES 2 MINUTES.
THE REMAIN TIME NUMBERS FLASH
THE WARNING LEGEND APPEARS AND FLASHES
WRONG SLIDE
AN AUDIBLE ALARM WILL BE ISSUED

261. SHOULD A NO-DECOMPRESSION LIMIT BE EXCEEDED, THE COMPUTER AUTOMATICALLY ENTERS THE DECOMPRESSION MODE.
STAYING AT THE SAME DEPTH OR DEEPER AFTER THE 2 MINUTE WARNING WILL CAUSE THE UNIT TO ENTER THE DECOMPRESSION MODE.

262. DECOMPRESSION MODE COCHRAN DOES NOT INTEND FOR THIS
UNIT TO BE DELIBERATELY USED FOR
DECOMPRESSION DIVING.
HOWEVER, IF YOU PLAN TO PERFORM
DECOMPRESSION DIVES, WE RECOMMEND THAT
YOU HAVE ADEQUATE TRAINING, BACK UP
TABLES, AND AT LEAST TWO IDENTICAL
COCHRAN COMPUTERS.

263. DECOMPRESSION MODE
WHILE IN DECOMPRESSION MODE, THE VALUES IN THE UPPER LEFT HAND REMAIN TIME BOX ALTERNATE BETWEEN THE TIME REQUIRED AT THAT CEILING DEPTH AND THE TOTAL TIME REQUIRED TO COMPLETE ALL DECO STOPS.
AT THE 10 FOOT CEILING, TOTAL TIME AND STOP TIMES MAY BE THE SAME AND APPEAR NOT TO ALTERNATE.

264. DECOMPRESSION MODE
THE CEILING REPRESENTS A DEPTH ABOVE WHICH THE DIVER MUST NOT ASCEND, UNTIL SUFFICIENT TIME HAS PASSED, IN ORDER TO MINIMIZE THE RISKS OF DECOMPRESSION SICKNESS.
THE DEPTH OF THE REQUIRED CEILINGS START AT 10 FEET AND INCREASE IN 10 FOOT INCREMENTS AS THE DECOMPRESSION OBLIGATION INCREASES.

265. IN DECOMPRESSION MODE, THE NDC LEGEND AND VALUES ARE REPLACED BY DECOMPRESSION TIMES, DEC.
NDC Time Remain
(Time you can stay at
current depth without
Decompression)
No-Decompression Time
Note NDC Legend
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Decompression Time
Note DEC Legend

266. THE TEMP LEGEND AND VALUES ARE REPLACED BY CEIL LEGEND AND VALUES.
Water Temperature
Note TEMP Legend
Deco Ceiling
Note CEIL Legend
Don’t go above this depth for optimum Decompression

267. IN THIS EXAMPLE, A DECO STOP IS REQUIRED AT 20 FEET FOR 12 MINUTES.
NOTE THAT THE NDC
LEGEND HAS CHANGED TO DEC
Deco Stop Time
(Alternates between Total Deco Time and time at current Stop)
Deco Ceiling

268. ALTERNATE SCREEN VIEWABLE DURING DECOMPRESSION
PO2 in ATA
(of current Blend
Set Point)
Water Temperature
CNS Oxygen
Toxicity in %
OTU Oxygen
Toxicity in %
Max Depth
(of current dive)

269. THE 10 MINUTE PERIOD FOLLOWING A DIVE IS CALLED THE POST-DIVE INTERVAL.
THE SURFACE INTERVAL SCREEN IS VISIBLE. THE SURF LEGEND WILL FLASH UNTIL THE 10 MINUTE POST DIVE INTERVAL HAS PASSED.

270. DISPLAYED DATA (Post Dive Interval and Surface Interval) Dive of “Day”
(Repetitive Dive
Number)
Time to Fly
(Hours before safely flying)
Air Temperature
Bottom Time
(of the last Dive)
Surface Time
(Amount of time
since last Dive)
Maximum Depth
(of the last Dive)

271. NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
SHOULD ANOTHER DIVE BE STARTED BEFORE THE 10 MINUTE POST DIVE INTERVAL IS COMPLETE, THE DIVE WILL BE CONSIDERED AN EXTENSION OF THE PREVIOUS DIVE.
NOTE: DURING THE 10 MINUTE POST DIVE INTERVAL, TOUCH CONTACT
PROGRAMMING IS DISABLED.

272. THE COCHRAN EMC-20H HAS MANY FEATURES THAT ENHANCE DIVER SAFETY WITH MANY USER PREFERENCES.
THE DIVER CAN CUSTOMIZE THE COMPUTER TO BETTER REFLECT THE DIVE CONDITIONS AND INDIVIDUAL STYLE OF DIVING.
MANY OF THESE FEATURES ARE PROGRAMMABLE AT THE DIVE SITE. OTHER FEATURES WILL REQUIRE THE ANALYST SOFTWARE INTERFACE.

273. TOUCH CONTACT PROGRAMMING MODE
CAN ONLY BE ACCESSED WHEN THE UNIT IS IN THE SURFACE INTERVAL.

274. NOW, GRAB THE BATTERY REPLACEMENT TOOL THAT WAS INCLUDED WITH YOUR COCHRAN EMC-20H.
IT CAN BE RECOGNIZED BECAUSE IT LOOKS AND SPENDS EXACTLY LIKE A U.S. QUARTER.
THIS FIRST TIME THROUGH THE PROCEDURE, WE ARE SIMPLY GOING TO LOOK AT THE TEN PROGRAMMING MENUS.

275. WITH THE SURFACE INTERVAL SCREEN DISPLAYED, TOUCH OR BRIDGE CONTACTS 1 AND 2 WITH A COIN.
FO2
SCREEN
PO2
SCREEN
THE FIRST MENU TO APPEAR IS FOR SELECTING EITHER THE FO2 OR PO2 OPERATING MODE.

276. TOUCH OR BRIDGE CONTACTS 1 AND 2 AGAIN WITH A COIN.
THE SECOND MENU TO APPEAR IS FOR PdP, PREDIVE PREDICTION.

277. ANOTHER SIMILAR TOUCH WITH A COIN BRINGS THE InF, INFORMATION MENU.

278. THE FORTH COIN TOUCH BRINGS THE dEP AL, DEPTH ALARM MENU.
(Depth Alarm set to 124 feet)

279. THE NEXT 1&2 COIN TOUCH WILL END DEPTH ALARM PROGRAMMING AND OPEN THE MENU USED FOR PROGRAMMING A PERCENT OF ADDITIONAL CONSERVATISM.
Conservatism set to 15%

280. THE SIXTH TOUCH BRINGS UP THE PO2 1 MENU FOR SETTING DEFAULT BLEND PO2.
PO2 set to 0.70 ATA

281. THE SEVENTH TOUCH BRINGS UP THE O2 1 MENU FOR SETTING THE DEFAULT BLEND DILUENT O2%.
O2 set to 16.0%

282. THE EIGHTH TOUCH BRINGS UP THE HE 1 MENU FOR SETTING THE DEFAULT BLEND Helium %.
Helium set to 70.0%

283. THE NEXT TOUCH BRINGS UP THE PO2 2, DECO BLEND PO2 MENU.
Deco Blend set to 1.30 ATA

284. THE TENTH TOUCH BRINGS UP THE O2 1 MENU FOR SETTING DECO BLEND DILUENT O2%.
O2 set to 36.0%

285. THE ELEVENTH TOUCH BRINGS UP THE HE 1 MENU FOR SETTING DECO BLEND HELIUM %.
Helium set to 30.0%

286. THE TWELTH TOUCH BRINGS UP THE dEC b, DECO BLEND TIME BENCHMARK MENU.
Benchmark set to
600 minutes
SO WHAT IS A BENCHMARK ?

287. THE NEXT TOUCH BRINGS UP THE dEC d, DECO BLEND DEPTH BENCHMARK MENU.
Benchmark set to
0 feet
SO WHAT IS A BENCHMARK ?

288. THE NEXT TOUCH BRINGS UP THE TAC, TACLITE DWELL OR “ON TIME” MENU.
On Time set to 10 seconds

289. THE FIFTENTH TOUCH BRINGS THE LOG LOGBOOK MENU.

290. ANOTHER TOUCH RETURNS YOU TO THE SURFACE INTERVAL SCREEN.

291. TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.
EACH PROGRAMMING OPTION OFFERS ADDITIONAL DATA OR OPPORTUNITIES FOR PROGRAMMING YOUR PERSONAL DIVING PREFERENCES.
TOUCH CONTACTS 1 AND 2 WITH THE COIN AGAIN AND THE PdP MENU REAPPEARS.

292. NOW TOUCHING CONTACTS 1 AND 2 WITH A WET FINGER WILL ALLOW THE ADDITIONAL DATA TO APPEAR ON THE SCREEN.
FOR EXAMPLE…

293. THE PREDICTED NDC TIME BEGIN AT 30 FEET, EACH ADDITIONAL WET FINGER TOUCH INCREASES THE PREDICT DEPTH BY 10 FEET.
Predict NDC Time
(Time you can
Stay at predict
Depth Without
Decompression)
PO2 Set Point
Predict Depth
AS SHOWN HERE, AFTER TWO MORE TOUCHES THE PREDICTED TIME IS FOR A DEPTH OF 50 FEET.

294. BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.
PRE-DIVE PREDICTIONS ARE EFFECTED BY RESIDUAL NITROGEN LOADING AND CHANGE WITH SURFACE INTERVAL TIME.
PREDICTIONS ARE TERMINATED WHEN THE NO-DECOMPRESSION TIME PREDICTION REACHES TWO MINUTES OR A DEPTH OF 320 FEET IS REACHED.
BRIDGING CONTACT 1 AND 2 WITH A COIN TAKES YOU TO THE NEXT MENU, InF.

295. BRIDGING CONTACTS 1 & 2 WITH A WET FINGER WILL ACCESS THE INFORMATION SCREEN.
Mode Blend Indicator
(P2 = 2 PO2)
CNS Oxygen
Toxicity in %
Battery Voltage
(3.0 Volts)
OTU Oxygen
Toxicity in %
THE INFORMATION SCREEN GIVES DATA REGARDING CNS AND OTU OXYGEN TOXICITY ISSUES, UNIT CONFIGURATION AND BATTERY VOLTAGE.

296. TAPPING ON THE UNIT’S FACE ACCESSES THE ALTERNATE DISPLAY
Oxygen % of Default Blend
Helium % of
Default Blend
Nitrogen % of
Default Blend
THE ALTERNATE INFORMATION SCREEN GIVES DATA REGARDING OXYGEN, HELIUM AND NITROGEN PERCENTAGES OF THE DEFAULT BLEND.

297. THE NEXT 1 & 2 COIN TOUCH BRINGS UP THE DEPTH ALARM PROGRAMMING MENU.
The Digit being
Programmed will
Flash Until it
is set and you
Move on to the
next Digit.
THE NEXT WET FINGER 1 & 2 TOUCH STARTS THE 1’S DIGIT FLASHING.

298. WHEN FLASHING, THE DIGIT IS INCREASED BY ONE WITH EACH COIN TOUCH BETWEEN CONTACTS 2 & 3.
The Digit being
Programmed will
Flash

299. A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
THE NEXT 1 & 2 WET FINGER TOUCH STARTS THE 10’S DIGIT FLASHING AND MAKES IT AVAILABLE FOR CHANGE.
A COIN TOUCH BETWEEN 2 & 3 INCREASES THE VALUE BETWEEN 0 AND 9.
TO PROGRAM THE 1OO’S DIGIT START IT FLASHING BY TOUCHING 1 & 2 WITH YOUR WET FINGER.
WITH THE 100’S DIGIT FLASHING, BRIDGE CONTACTS 2 & 3 WITH A COIN UNTIL THE DESIRED VALUE IS REACHED.

300. WHEN CONTACT 1 AND 2 ARE NEXT BRIDGED WITH A COIN, THE SCREEN ADVANCES TO THE NEXT MENU. WHEN THIS HAPPENS, THE LAST VALUES PROGAMMED ARE STORED IN THE COMPUTER.
IT IS ALWAYS RECOMMENDED THAT YOU SCROLL THROUGH ALL OF THE PROGRAMMABLE MENUS PRIOR TO BEGINNING A DIVE TO ENSURE THAT THE LIMITS ARE AS INTENDED.

301. SUPPOSE THAT YOU’RE A BIT DEHYDRATED, A LITTLE FATIGUED, SOMEWHAT OVERWEIGHT, AND HAVE AN OLD INJURY. MAYBE YOU HAVE ANOTHER CONDITION WHICH MIGHT PREDISPOSE YOU TO DECOMPRESSION ILLNESS…..
IF SO…FOLLOW THE SAME PROCEDURE TO ADD A BIT OF CONSERVATISM TO YOUR DIVING. ADD FROM 0% - 50% TO ANY OR ALL DIVES.

302. THE NEXT 1 & 2 COIN TOUCH WILL END DEPTH ALARM PROGRAMMING AND OPEN THE MENU USED FOR PROGRAMMING A PERCENT OF CONSERVATISM.
Conservatism set to 15%

303. A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, PO2 1 .
A SIMILAR SEQUENCE OF TOUCHING CONTACTS 1 & 2 WITH A WET FINGER AND 2&3 WITH A COIN WILL ALLOW YOU TO PROGRAM THE 1’S AND 10’S DIGIT OF ADDITIONAL CONSERVATISM.
A CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, PO2 1 .
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE PO2 VALUE OF THE DEFAULT BLEND.

304. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO CHANGE THE PO2 OF THE DEFAULT BLEND FROM 0.50 TO 1.50 ATA.
PO2 set to 0.70 ATA

305. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, O2 1.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE OXYGEN PERCENTAGE OF THE DEFAULT BLEND DILUENT.

306. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE O2% IN THE DEFAULT BLEND DILUENT FROM TO 99.9%.
O2 set to 16.0%

307. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, HE 1.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE HELIUM PERCENTAGE OF THE DEFAULT BLEND DILUENT.

308. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE HELIUM % IN THE DEFAULT BLEND DILUENT FROM TO 95.0%.
Helium set to 70.0%

309. THE NEXT 1 & 2 COIN TOUCH WILL END THE DEFAULT BLEND PO2 SETTING AND BRING UP THE PO2 2 MENU WHERE YOU SET THE PO2 FOR THE DECO BLEND.

310. SET YOUR DECO BLEND PO2 IN ATA ANYWHERE FROM 0.50 TO 1.50.
Deco Blend set to 1.30 ATA
ANOTHER 1 & 2 COIN TOUCH AND YOU WILL COME TO THE O2 2 MENU WHERE YOU SET THE DECO DILUENT OXYGEN %.

311. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE O2% IN THE DECO DILUENT FROM 5.0 TO 99.9%.
Deco Diluent O2
set to 36.0%

312. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, HE 2.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE HELIUM % OF THE DECO DILUENT.

313. FOLLOW THE PROCEDURE DESCRIBED PREVIOUSLY TO PROGRAM THE HELIUM % IN DECO DILUENT FROM 0.0 TO 95.0%.
Deco Diluent Helium
set to 30.0%

314. WITH THE SAME SEQUENCE OF 1 & 2 WET FINGER TOUCHES AND 2 & 3 COIN TOUCHES, YOU SET THE DECO BLEND TIME BENCHMARK FROM 0 TO 999 MINUTES
Deco Blend
Time Benchmark
set to 70 minutes
SO WHAT IS A BENCHMARK ?

315. THE NEXT CONTACT 1 & 2 COIN BRIDGE WILL TAKE YOU TO THE dEC d MENU WHERE YOU WILL BE ABLE TO CHANGE THE DECO BLEND DEPTH BENCHMARK.

316. FOLLOW THE SAME PROGRAMMING PROCEDURE TO CHANGE THE DECO BLEND DEPTH BENCHMARK FROM 0 TO 99 FEET.
set to 20 feet
SO WHAT IS A BENCHMARK ?

317. THE NEXT CONTACT 1 & 2 COIN TOUCH TAKES YOU TO THE NEXT MENU, TAC dl.
A WET FINGER TOUCH WHILE ON THIS SCREEN BEGINS THE PROCEDURE FOR SETTING THE TACLITE “ON TIME” OR DWELL.

318. THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER
THE TACLITE IS ACTIVATED BY TAPPING ON THE FACE OF THE COMPUTER. THIS UNIQUE DESIGN LETS YOU READ THE DATA IN LOW-LIGHT CONDITIONS WITHOUT THE WORRIES OF OVER-DEPLETING THE BATTERY.
ALSO, “NO WORRIES MATE” ABOUT A SWITCH THAT COULD POTENTIALLY BREAK OR LEAK.
YOU SIMPLY PROGRAM THE LIGHT TO REMAIN ON FOR WHATEVER TIME YOU CHOOSE.

319. A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.
THE TACLITE FACTORY SETTING IS 10 SECONDS, YOU CAN CHANGE THIS TIME FROM 1-98 SECONDS. SETTING IT TO 00 AND THE TACLITE WILL NEVER TURN ON.
On Time set to 10 seconds
A SETTING OF 99 AND THE LIGHT IS ON WHENEVER THE EMC-20H IS AWAKE.

320. THE NEXT COIN TOUCH OF CONTACTS 1 & 2 OPENS THE LOGBOOK MODE.
Logbook Dive Number
THE WET FINGER BETWEEN 1 & 2 WILL ALLOW VIEWING OF DIVE DATA FOR THE MOST RECENT 512 DIVES.

321. THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001
TAPPING THE FACE OF YOUR COCHRAN EMC-20H WILL ACTIVATE AN ALTERNATE SCREEN, WHICH DISPLAYS THE DATE AND TIME OF THE SELECTED DIVE.
Hour
00 to 24
Minutes
00 to 59
Day
Month
Year
THIS DIVE WAS STARTED AT 14:26 (2:46 P.M.) ON 18 December 2001

322. IMPORTANT DATA FROM COMPLETED DIVES IS EASILY AVAILABLE ONCE IN THE LOGBOOK MODE.

323. MINIMUM WATER TEMPERATURE SURFACE INTERVAL BEFORE DIVE BOTTOM DIVE
OVERALL DIVE NUMBER
MINIMUM WATER TEMPERATURE
SURFACE INTERVAL BEFORE DIVE
BOTTOM DIVE
MINIMUM NDC TIME
FASTEST RATE OF ASCENT
MAXIMUM CEILING (DECO DIVE)
MAXIMUM DEC TIME (DECO DIVE)
ENDING BATTERY VOLTAGE
DATE AND TIME OF DIVE
CNS and OTU OXYGEN TOXICITY VALUES

324. PRIMARY LOGBOOK SCREEN
FOR A NORMAL DIVE
NDC Time Remain
(Minimum NDC time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Water Temperature
(Minimum recorded
during the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

325. ALTERNATE LOGBOOK SCREEN FOR A NORMAL DIVE
PO2 in ATA
(Default Blend Set Point)
Helium
Indicator
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

326. PRIMARY LOGBOOK SCREEN
FOR A DECO DIVE
DEC Time Remain
(Maximum Deco time
during the dive)
Ascent Rate
(Maximum recorded
on dive fpm)
Deepest Deco Ceiling
(Recorded during
the dive)
Bottom Time
(of the dive)
Surface Time
(Amount of time
since last dive)
Maximum Depth
(of the dive)

327. ALTERNATE LOGBOOK SCREEN FOR A DECO DIVE
PO2 in ATA
(Default Blend Set Point)
Water Temperature
(Minimum recorded
during the dive)
CNS Oxygen
Toxicity in %
Battery Voltage
(2.9 Volts)
OTU Oxygen
Toxicity in %

328. YOU HAVE JUST COMPLETED A BRIEF PRESENTATION ON SOME OF THE MANY FEATURES AND BENEFITS OF THE COCHRAN EMC-20H COMPUTER.
YOUR OWNER’S MANUAL GOES INTO GREATER DETAIL REGARDING THESE AND OTHER VALUABLE FEATURES, ALL DESIGNED AND DEVELOPED TO SUPPORT A SAFER, MORE ENJOYABLE DIVING EXPERIENCE.

329. A COMPLETE COPY OF THE OWNER’S MANUAL
CAN BE OBTAINED FROM OUR WEBSITE.
VISIT
FIRST CLICK ON “PRODUCT MANUALS.”

330. HAPPY DIVING, HAVE FUN, AND MOST IMPORTANTLY, BE SAFE!
Click on the door to go back
to the main selection screen or
click on the stop sign to exit.