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Cochran commander+ Owner's Manual

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COMMANDER
Owner's Manual
English - Metric
Ver.CMDR+002M

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  • Page 1 COMMANDER Owner's Manual English - Metric Ver.CMDR+002M...
  • Page 2 COMMANDER Owner's Manual English - Metric Ver.CMDR+002M...
  • Page 3 COMMANDER Owner's Manual English – Metric Version 002M USER INFORMATION For your records, please fill in the following information. SERIAL NUMBER OF UNIT: _____________________________ DATE OF PURCHASE:__________________________________ PLACE OF PURCHASE:_________________________________ ADDRESS:____________________________________________...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS Product Certifications Limited Warranty and Liability Statement Product Introduction User & Environmental Adaptation Metric & Imperial Modes Low Battery Indications Side Touch Contacts Turning the Product On & Off Oxygen Toxicity Factors Warning Indications PreDive Prediction Mode Surface Mode Subsurface Mode Ascent Rate Bar Graph...
  • Page 5 Connect equipment and the affected receiver to power outlets on separate circuits. • Consult the dealer or an experienced radio/TV technician for help. MODIFICATIONS Changes or modifications not expressly approved by Cochran Consulting, Inc. could void the user's authority to operate the equipment.
  • Page 6 Product box, or can be determined by contacting COCHRAN. Any defective Product, unless cause is specifically excluded in the "Warranty Conditions and Limitations" section below, will at the sole discretion of COCHRAN, be repaired or replaced with a new or refurbished unit of comparable or better function and/or condition.
  • Page 7 Damages or malfunction resulting from accidental or deliberate abuse, tampering, battery leakage, exceeding maximum intended operating depth or other parameters, extreme heat or cold, or other conditions which COCHRAN may deem to be outside the intended scope of this Limited Warranty are not covered. Plastics, O-rings, batteries, battery life, and flooded battery compartments are NOT covered by this Limited Warranty.
  • Page 8 COCHRAN and its distributors and retailers will not be held liable for any personal injuries or other damages resulting from its use, even if COCHRAN has been advised of such occurrences or damages.
  • Page 9 COCHRAN strongly supports and agrees with maximum depth limits of 50 metres for recreational SCUBA diving, as established by recognized training and certification agencies, and in no way encourages diving beyond these or any prudent lesser limits as may be necessitated by environmental, diver-specific, or other conditions.

  • Page 10: Product Introduction

    USER & ENVIRONMENTAL ADAPTATION: The COMMANDER+ is one of the new breed of Dive Computers that adapts its algorithm to the user’s diving environment and style as originally pioneered by COCHRAN. All of COCHRAN’s newer dive computers incorporate this capability. The factors that are used for this “Adaptation” in the...
  • Page 11 Some dive computers are calibrated in metres of fresh water and some are calibrated in metres of seawater. Diving in a medium different from what the dive computer is calibrated will cause apparent depth errors. Only COCHRAN dive computers, including the COMMANDER+, actually determine the type of diving medium and compensate the depth reading accordingly.
  • Page 12 This occurs when a deep dive is followed by an even deeper dive. This recent dive history is used to compensate the nitrogen loading for the current dive. ALTITUDE ACCLIMATIZATION: Driving or flying to a dive site significantly higher in altitude requires special modifications to the "sea level"...

  • Page 13: Low Battery Indications

    occurrences of obtaining slightly different altitude readings and corresponding no- decompression (NDC) limits when diving within a given area. However, ZONE reduces the accuracy of the altitude compensation for the first 600 metres above sea level, since all altitudes below 600 metres are treated as sea level. However, the advantage in ZONE is that changes in apparent altitude due to temperature or weather changes at sea level will not affect the NDC computations.
  • Page 14 decays to 2.3 volts, the “BATT” legend will begin to flash on and off. Also, the TACLITE if on, will be turned off to conserve the remaining battery power even though the unit may be on a dive. While there should be sufficient battery power to normally complete a dive, it is not recommended to begin a new dive until fresh ENERGIZER brand batteries ®...
  • Page 15 at the top of the display is Contact 3. Contacts are used to: • Turn the unit on by sensing wetted Contacts 1 & 2; • Enter Logbook Mode by sensing wetted Contacts 1 & 2; • Enter Programming Mode by sensing shorted Contacts 1 & 2; •...
  • Page 16 As the COMMANDER+ first recognizes a turn-on command, it begins a “Diagnostic” function where many aspects of the system will be exercised and tested. This procedure takes about three seconds and an audible beep is issued each second as certain tests are successfully completed. During this time, all of the segments in the display are turned on so their operability can be confirmed.

  • Page 17: Oxygen Toxicity Factors

    off gassing until all residual nitrogen is eliminated. The current Surface Interval and PreDive Predictions can be viewed by turning the unit back on. OXYGEN TOXICITY FACTORS: The COMMANDER+ has the ability to track Oxygen Toxicity levels for the Central Nervous System (CNS) as well as the Mission Oxygen Tolerance Units Dose (OTU).
  • Page 18 By the accepted definition of CNS toxicity, should a PO2 value of greater than 1.6 ATA be measured, the CNS Toxicity will be 100%. During the Surface Interval, this percentage will decrease as the CNS declines toward zero. Once this has dropped below 50%, the MAX DEPTH reading will return.

  • Page 19: Warning Indications

    oxygen exposure management. The OTU Dose is an exponential function of oxygen partial pressure and time. The time-dependent limit varies with length of time (days) that the diver continues to dive without full recovery to zero OTU. The Mission OTU Clock tracks the OTU, which is a running clock that tracks long-term Oxygen exposure.

  • Page 20: Predive Prediction Mode

    illuminate. The unique audible sweep alarm will continue to sound once per second until the situation is corrected. • If the diver descends below the user set Depth Alarm, the Depth digits will flash. The audible alarm will sound once per second for five seconds and will repeat once per minute.

  • Page 21: Decompression Mode

    Decompression Mode PostDive Interval Mode Logbook Mode Gauge Mode Programming Mode. Sleep Mode (previously described) PRE-DIVE PREDICTION MODE: Once every minute the COMMANDER+ will “scroll” depths starting at 9 metres and increasing in 3 metre increments. PreDive Predictions will stop when the No-Decompression (NDC) time prediction reaches two minutes or the set maximum depth is reached.
  • Page 22 4:32 2:52 3:05 3:44 9:59 9:59 9:59 2:21 1:27 1:24 2:01 6:24 5:34 9:59 1:20 1:10 3:22 3:01 9:59 2:07 1:54 6:36 1:19 1:10 3:54 Current Dive Bottom Surface Altitude Depth Time Interval Condition A: Condition B: 1.5km Condition C: Condition D: 2:00 Condition E:...
  • Page 23 when the PO2 reached the current set point of 1.6 ATA. NDC times shown are approximate. Refer to the Analyst ® description about how to modify parameters. During the PreDive Prediction Mode, the unit will compute and display the maximum safe time at that depth. Current Surface Temperature and Battery Voltage are also displayed.
  • Page 24 the previous dive’s Bottom Time, Dive of Day number, current Time to Fly, and Temperature are displayed. “Surface Time” starts at zero immediately after a dive and begins counting minutes. If the computer shuts off and is turned on with nitrogen residual left, the Surface Time will continue to count.
  • Page 25 Fi g u re 3 TEMP SU RFA C E M O D E D I SPLA Y W i th N i tr o g e n Re si d ua l D i ve o f D a y Ti m e to Fl y h r s METRIC...
  • Page 26 If the PO2 is greater than the user set point (1.6 ATA from factory), the “MAX DEPTH” will be replaced with a “P” followed by the two-digit PO2 number. Fi g u r e 5 REMAIN TIME TEMP SU BSUR FA C E M O D E M O D E Re m a i n N D C Ti m e 1 8 m i n s D e p th 9 .1 m tr...
  • Page 27 NOTE: Customizing the Ascent Rate and Ascent Rate Bar Graph are just two of the ® many additional programmable features available when using the Analyst PC Interface. See an Authorized Team Cochran Dealer for a complete demonstration. Some available features are described in the section “USER CONFIGURABLE OPTIONS”.
  • Page 28 DECOMPRESSION MODE: Should a no-decompression limit be mistakenly overstayed, the COMMANDER+ will enter the Decompression Mode. In this mode, the Ceiling digits will display the depth at which the diver must stop and not ascend above during final ascent (the “TEMP” legend and digits will be replaced with the “CEIL” legend and digits).
  • Page 29 2 8 m i n s A sc e n tRa te Ba tte ry NOTE: COCHRAN does not intend for this instrument to be used for deliberate Decompression diving. POST DIVE INTERVAL MODE: During the first ten minutes after a dive, the COMMANDER+ is in the PostDive Interval Mode.
  • Page 30 Fi g u re 8 TEMP PO ST D I V E I N TER VA L ("SU R F" Le g e n d Fl a sh i n g ) D i ve o f D a y Ti m e to Fl y 1 6 h r s METRIC...
  • Page 31 Each log will be displayed for 30 seconds before “timing-out” and returning to the Surface Mode. Via the optional Analyst ® Personal Computer Interface, the Logbook Mode “time-out” timer can be set from 10 to 60 seconds in one-second increments which would allow the user to view each dive for more or less time.
  • Page 32 GAUGE MODE: Should the diver violate the design limitations of the COMMANDER+, Gauge Mode will be entered since it is impossible for the computer to continue computing and displaying accurate or even reasonable information. While in this mode, the only data that will be displayed are Depth, Max Depth, Ascent Rate, Temperature, and Bottom Time.
  • Page 33 FIELD PROGRAMMING MODE – with NITROX ENABLED: Contacts 1, 2, & 3 are for programming sequences. The COMMANDER+ is set at the factory to calculate Air (21% Oxygen) in its decompression algorithm. PRIOR to diving an Enriched Air Nitrox gas blend, the unit must be programmed accordingly.
  • Page 34 The first display seen is for setting the oxygen percentage. The upper left corner will display a “1-3”. The “1” indicates you are programming the oxygen percentage and the “-3” indicates the 10’s digit is being programming. The Oxygen Percentage being programmed is displayed bottom center. Upon initial programming, this value should display “21.0”...
  • Page 35 All programming sequences use the same routine of using Contacts 1 and 2 to SELECT the next programming sequence and Contacts 2 and 3 to INCREMENT the specified value. If a value requires three digits to be programmed, a -3, then a -2, and then a -1 will be displayed in the upper left-hand corner.
  • Page 36 FIELD PROGRAMMING MODE – with NITROX DIISABLED: Contacts 1, 2, & 3 are for programming sequences. To begin the programming sequence: Turn the unit on; Using a coin or other highly conductive metal, briefly bridge Contacts 1 and 2 until a short beep is heard and the Programming Menu is seen in the display.
  • Page 37 Fi g u r e 1 3 FI ELD PRO G R A M M I N G (Se tti ng TA C LI TE o n/o ff) (N o N i tro x Fu n c ti o n s) TA C LI TE The first display seen is for setting the added Conservatism.
  • Page 38 Bridge Contacts 2 and 3 to increment the 1's digit to the desired value. If the example of setting a Conservatism Percentage of 15% is continued, Contacts 2 and 3 would be bridged until a “5” appears in the 1's digit at the bottom center display.

  • Page 39: Data Storage Types & Capacity

    The programming sequence is consistent from value to value. The table below lists the various programming sequence and their display identifications. Identification Description 1-3 1-2 1-1 Oxygen %. Maximum allowable value is 50.0% C-2 C-1 Added Conservatism. Maximum allowable value is 50%. TACLITE On/Off.
  • Page 40 • Each Dive Ending Statistics: 12 tissues loading, Bottom Time, Max Depth, Average Depth, Min NDC Time, Max Deco Time, Max Deco Ceiling, Missed Ceiling, Missed Deco Time, CNS Toxicity, OTU Dose, Max PO2, Max Ascent Rate, Max A/R Time, Max A/R Depth, Min Temperature, Average Temperature, Maximum Temperature, Min Battery Voltage, Time to Fly, and the number of Warnings.
  • Page 41 Select Altitude <600 metres as One Zone (Off or On): This option provides "actual" altitude for any given day at any diving location as explained in the previous section “ALTITUDE ACCLIMATIZATION”. With changes in barometric pressure due to temperature and weather systems, it is possible, even expected, to have a different apparent altitude at the same dive site from day to day.
  • Page 42 Select Backlight on Display (On or Off): This option may also be set via the Field Programming method. To conserve battery life, it is suggested that the light be turned off immediately after a dive while in the Surface Mode. Regarding battery life, every hour the TACLITE is on is equivalent to about five dive hours without TACLITE.
  • Page 43 The COMMANDER+ is shipped from the factory as FIXED with an 18 metre per minute alarm. Selectable Fixed Ascent Rate Alarm Limit: If FIXED Ascent Rate alarm was selected from the above topic, the user may enter the desired Ascent Rate for the alarm to sound.
  • Page 44 Max Depth Alarm: This option allows the diver to select a maximum depth, below which the diver does not wish to descend before an alarm is sounded. This function is disabled when in the Decompression Mode. The Field Programming Mode previously described may also modify this setting.
  • Page 45 However, this will also limit the number of dives retained in memory for later recall. For optimum re-creation of dives, sampling periods of greater than four seconds are not recommended. For each one-second increase in the sampling rate, the COMMANDER+ will store an additional six hours of profiles. As shipped from the factory, Profile Storage Period is set to four seconds which allows for 24 hours of storage before the earlier profiles are overwritten.
  • Page 46 Dive Profile Storage 6 Dive hours at one second sampling 24 Dive hours at four second sampling (default) 90 Dive hours at 15 second sampling Profile Sampling Selectable 1-15 secs, 1-second increments Typical Battery Life* Over 200 dive hours or 1 year, TACLITE off Over 40 hours, TACLITE on * With fresh new ENERGIZER brand alkaline batteries...

  • Page 47: Changing Batteries

    O-rings are properly installed. As the battery cap is screwed in, carefully observe that the double O-rings install correctly. Ask a Team Cochran Dealer for a demonstration. It is best to have the new ENERGIZER brand batteries ready to immediately install ®...

  • Page 48: Product Assistance, Repair, & Maintenance

    If this is not possible or is inconvenient due to a change in location, contact us for the name of the nearest Team Cochran Authorized Dealer. • NEVER TEST OR SUBJECT THE PRODUCT TO PRESSURIZED AIR! •...

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