Sherwood Wisdom 3 Manual

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Wisdom 3 DC Manual

DIVE COMPUTER MANUAL

Doc. No. 12-5274-r01 (8/31/11)

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Summary of Contents for Sherwood Wisdom 3

Page 2: Table Of Contents
Wisdom 3 DC Manual CONTENTS Full Display .........................4 Warranty ........................5 Notices.........................5 FEATURES and DISPLAYS ..................7 Features and Displays ....................8 Intuitive Displays ......................8 Bar Graphs ........................9 Nitrogen Bar Graph ....................9 Oxygen (O2) Bar Graph..................9 Variable Ascent Rate Indicator ................9 Informational Displays ....................9 Tank Pressure Display ...................9...
Page 3 Oxygen Exposure Limits ..................44 Altitude Diving ......................45 Flying After Diving ....................45 Clear (Reset) Feature ....................46 Compass Removal/Installation Instructions ............46 Specifications ......................47 Glossary ........................50 Altitude NDL Tables ....................51 Inspection/Service Record ..................52 Sharing the Wisdom 3 ....................52 © 2002 Design, 2011 Doc. No. 12-5274-r01 (8/31/11)
Page 4: Full Display
Allow Adequate Surface Interval Between Each Dive • Allow Adequate Surface Interval Between Each Day Of Diving (12 Hours Or Until Your Com- puter Clears) Read and understand this Manual thoroughly before using the Wisdom 3. Responsible © 2002 Design, 2011 Doc. No. 12-5274-r01 (8/31/11)
Page 5: Warranty
Wisdom 3. Modifications or repair by anyone other than a Sherwood Sales and Service Center authorized to service the Wisdom 3 will void the warranty. Sherwood Scuba will not be responsible for recovery or replacement of the product in the event of loss or theft. Sher- wood Scuba, its distributors, and retailers make no warranties, either expressed or implied, with respect to this product or its owner’s manual except those...
Page 6 A NOTE is used to emphasize an important maintenance technique. Throughout this manual reference is made to the term 'breathing gas'. The rationale being that the Wisdom 3 can be used for Air dives or Nitrox dives. For clarity, these terms are defined as - Breathing Gas - the gaseous mixture breathed during a dive.
Page 8: Features And Displays
As you use the Wisdom 3, remember that the rules you learned in your SCUBA course(s) still apply to the diving you will do while using a dive computer - some will become even more important. Technology is no substitute for common sense, and a dive computer only provides the person using it with data, not the knowl- edge to use it.
Page 9: Bar Graphs
Wisdom 3 DC Manual BAR GRAPHS Nitrogen Bar Graph The Nitrogen Bar Graph (Fig. 3a) represents tissue loading of nitrogen, showing your relative no decompres- sion or decompression status. As your depth and bottom time increase, segments will add to the Graph, and as you ascend to shallower depths, the Bar Graph will begin to recede, indicating that additional no decompression time is allowed for multilevel diving.
Page 10: Time And Date Displays
Wisdom 3 DC Manual Time and Date Displays Time displays are shown in hour:minute format (i.e., 1:09 represents 1 hour and 9 minutes, not 109 minutes!). The colon that separates hours and minutes blinks once per second when the display is indicating real time (e.g., Elapsed Dive Time), and is solid (non-blinking) when times are calculated projections (e.g., Time to...
Page 11: Backlight
OPERATING TEMPERATURE The Wisdom 3 will operate in water temperatures from 28° to 95° F (-2 to 35 °C) and out of the water from 20° to 140°F (-6 to 60 °C). At extremely low temperatures, the LCD may become sluggish, but this will not affect it's accuracy.
Page 13: Activation
NOTE: This method functions only when the Wet Activation feature is set ON. The Wisdom 3 has 2 contacts that cause it to activate when the space between the contacts is bridged by a conductive material (e.g., water contact) and enter WET Mode (Fig. 9A) or DIVE Mode.
Page 14: Data Screens
Wisdom 3 DC Manual In addition to the DATA screens, you can use also use the front (Advance) button to access the - • PLAN screens (sequence of allowed dive depths/times ) • LAST screen (previous dive's data) • LOG screens •...
Page 15: Plan Screens
> DATA > PLAN), or 1 time while the DATA screen is being displayed, you can access the PLAN screen rep- resenting the Mode you set the Wisdom 3 to operate in (Nitrox or Air). If set for Gauge operation, PLAN is bypassed.
Page 16: Last Dive Screen
Wisdom 3 DC Manual While viewing a PLAN screen - • Pressing Both buttons for < 2 seconds activates the Backlight. • Pressing Both buttons for => 2 seconds reverts to the TIME/WET screen. • Pressing the front (Advance) button accesses the LAST screen.
Page 17 Wisdom 3 DC Manual While LOG GO TO is being displayed - • Pressing the side (Select) button once displays the most recent dive’s LOG Date screen. • Pressing the front (Advance) button displays that dive’s Log Screen #1. • Pressing the front (Advance) button again displays that dive’s Log Screen #2.
Page 18: History Mode
Wisdom 3 DC Manual HISTORY MODE HISTORY records accumulative information for up to 999 Total Dives and 2999 Dive Hours, and retains the information indefinitely, even if the Battery is removed. • 10 minutes after a Non-Violation Dive, pressing the front (Advance) button 5 times accesses HISTORY MODE (TIME >...
Page 19 Wisdom 3 DC Manual CONT GO TO screen (Fig. 27) • Alpha graphic CONT • Alpha graphic Go to - • Pressing and releasing the front (Advance) button accepts the GO TO displayed. If SIMU GO TO is selected, the Simulator is bypassed and the SET GO TO screen is accessed.
Page 20: Pc Interface (Upload/Download)
While the TIME/WET screen is displayed, data can be downloaded from the Wisdom 3 or settings can be uploaded to it, by connecting the Wisdom 3 to a compatible PC using a special PC Interface Cable (USB) and setting up the PC program.
Page 21: Set Operating Mode
Wisdom 3 DC Manual SET OPERATING MODE Factory set for AIR, the Wisdom 3 can also be set for NITROX or GAUGE. Appearing on the screen are (Fig. 34) - • Alpha graphic MODE • Operating Mode graphic AIR or NITROX or GAUGE, flashing Pressing and releasing the side (Select) button changes the selection (AIR >...
Page 22: Set Fo2 Value
Wisdom 3 DC Manual SET FO2 VALUE Factory set for 21%, FO2 can also be set at Values from 21 to 50% in increments of 1%. FO2 defaults to 21% after it shuts off and is reactivated and set for Nitrox Mode operation.
Page 23: Set All Alarms On/Off
Wisdom 3 DC Manual SET ALL ALARMS ON/OFF Factory set ON, All Alarms can also be set OFF. When set OFF, All Alarm settings are bypassed and the Au- dible Alarm is turned OFF for the Alarms that could be set On/Off.
Page 24: Set Depth Alarm Value
Wisdom 3 DC Manual SET MAX DEPTH ALARM VALUE Factory set for 100 FT, the MAX DEPTH ALARM VALUE can also be set from 30 to 330 FT (9 to 99 M) in increments of 10 FT (3 M). After accepting ON as the setting for DEPTH ALARM ON/OFF, the SET MAX DEPTH ALARM VALUE screen appears with the set point flashing.
Page 25: Set End Pressure Alarm On/Off
Wisdom 3 DC Manual SET END PRESSURE ALARM ON/OFF Factory set ON, the END PRESSURE ALARM can also be set OFF. When set OFF, the Alarm will not sound as Tank Pressure decreases toward 0 PSI (BAR). To access SET END PRESSURE ALARM while viewing the SET 2 GO TO screen, press/release the front (Advance) button 5 times.
Page 26: Set Reserve Time Alarm Value
Wisdom 3 DC Manual Pressing Both buttons for < 2 seconds activates the Backlight. Pressing Both buttons for => 2 seconds reverts to the TIME/WET screen. The unit reverts to the TIME/WET screen if neither button is pressed in 2 minutes.
Page 27: Set 3 Group (Utilities)
H2O SENSOR screen with the set point flashing. SET H2O SENSOR (WET ACTIVATION) ON/OFF Factory set ON, the H2O SENSOR can also be set OFF. When set OFF, the Wisdom 3 will not activate upon immersion in water. Appearing on the screen (Fig. 50) will be - •...
Page 28: Set Deep Stop On/Off
Wisdom 3 DC Manual To access SET SAMPLING RATE while viewing the SET 3 GO TO screen, press/release the front (Advance) button 3 times. Appearing on the screen (Fig. 52) will be - TIME • Alpha graphic SAMP • Graphic TIME •...
Page 29: Set Hour/Minute
Wisdom 3 DC Manual SET HOUR Factory set for Hour 0, the HOUR can also be set for Hours 1 through 23. To access SET HOUR while viewing the SET 4 GO TO screen, press/release the front (Advance) button 2 times.
Page 30 Wisdom 3 DC Manual SET MONTH OF YEAR Factory set for Month 1, the MONTH can also be set for Months 2 through 12. To access SET MONTH while viewing the SET 4 GO TO screen, press/release the front (Advance) button 5 times.
Page 32: Dive Time Remaining
When ATR (Fig. 62a) decreases to zero, you should immediately initiate a controlled Ascent while monitoring your Tank Pressure. However, there is no reason to panic, the Wisdom 3 has allowed for the Air necessary for a safe ascent including any Decompression Stops required.
Page 33: Operational Dive Modes
Wisdom 3 DC Manual Example: • You set the End Pressure Alarm for 300 PSI (20.5 BAR) • You are at a Depth of 60 FT (20 M) • Air Time Remaining decreases to 0 (minutes) • You Ascend at a maximum rate of 30 FPM (10 MPM) •...
Page 34: No Deco Deep Stop
Wisdom 3 DC Manual NO DECO DEEP STOP On No Deco dives in which Depth exceeds 80 FT (24 M), a Deep Stop Preview screen can be accessed that will display the graphic DEEP with a Stop Time of 2:00 (min:sec) with STOP and TIME icons, and a recom- mended Stop Depth calculated to be 1/2 the Max Depth.
Page 35: No Deco Safety Stop
Safety Stop Main DIGITAL GAUGE MODE When set for Digital Gauge Mode, the Wisdom 3 operates without providing any decompression or oxygen monitoring functions. After conducting a Gauge dive, a 24 hour surface interval is then required for the unit to operate as a full function diving computer.
Page 36: High Po2 Dive Mode
Wisdom 3 DC Manual HIGH P02 DIVE MODE A cautionary High PO2 Mode is entered upon reaching .20 ATA less than the Maximum PO2 Alarm Set Point. TIME Upon reaching the Alarm Set Point, the Audible Alarm sounds, the Red LED flashes, and the message HIGH >...
Page 37: Violation Modes
Fig. 80 - Deco Alt #2 CONDITIONAL VIOLATION UNDER WATER If you disregard a Decompression obligation (i.e., ascend above the Required Stop Depth), the Wisdom 3 en- ters a cautionary Conditional Violation Mode. The Audible Alarm sounds, the red LED flashes and the mes- sage DOWN >...
Page 38 When Decompression requires a Ceiling Stop Depth greater than 60 FT (18 M), but less than 70 FT (21 M), the Wisdom 3 enters Delayed Violation #2. The Audible Alarm will sound and the red LED will flash (even if set Off).
Page 39 VIOLATION/GAUGE MODE UNDER WATER (Fig. 85) When a Decompression Stop Depth greater than 70 FT (21 M) is required, the Wisdom 3 enters Permanent Violation Mode and reverts to Violation Gauge Mode operation for the remainder of that dive and subsequent...
Page 40: Care And Maintenance
WARNING: If any portions of the display are missing or appear dim, or a Low Battery Condition is indicated after Battery replacement, return your Wisdom 3 to an Authorized Sherwood Scuba Dealer for a complete evaluation before attempting to use it.
Page 41: Care And Cleaning
• Soak and rinse the Wisdom 3 in fresh water at the end of each day of diving, and check to ensure that the areas around the low pressure (depth) sensor (Fig. 87a), download interface Data Port (Fig. 87b), and buttons are free of debris or obstructions.
Page 42 • Inspect the Buttons, Lens, and Housing to ensure they are not cracked or damaged. • If there is any sign of moisture in the module, DO NOT use the Wisdom 3 until it receives proper ser- vice by an Authorized Sherwood Scuba Dealer.
Page 44: Decompression Model
This feature of the Decompression Model is the basis of multilevel diving, one of the most impor- tant contributions the Wisdom 3 offers you. NO DECOMPRESSION LIMITS (NDLS) Note how the No Decompression Limits for the Wisdom 3 are contrasted with the U.S. Navy limits (Fig. 92). Wisdom 3 Depth NDL-mins.
Page 45: Altitude Diving
LEV5 = 9,001 - 11,000 ft 2,746 - 3,355 m The Wisdom 3 senses ambient pressure when it is activated, every 15 minutes while it is activated, or every LEV6 = 11,001 - 13,000ft 30 minutes when it is not activated. At an Altitude of 3,000 feet (915 meters), it will automatically recalibrate 3,356 - 3,965 m itself to measure depth in feet of fresh water rather than feet of sea water.
Page 46: Clear (Reset) Feature
CLEAR (RESET) The Wisdom 3 computer is configured with a feature that allows calculations pertaining to a dive series in progress to be interrupted. Activation of this feature will delete all data accumulated during the dive series necessary for planning a next dive and should only be performed if the user plans to suspend diving for at least 24 hours.
Page 47: Specifications
Wisdom 3 DC Manual SPECIFICATIONS NO DECOMPRESSION MODEL Basis: • Modified Haldanean Algorithm • 12 tissue compartments Data Base: • Diving Science and Technology (DSAT) - Rogers/Powell Performance: • Tissue compartment halftimes (mins.) Spencer’s “M” values 5, 10, 20, 40, 80, 120, 160, 200, 240, 320, 400, 480 •...
Page 48 Wisdom 3 DC Manual SPECIFICATIONS (CONTINUED) DISPLAY RANGES / RESOLUTION Range: Resolution: • Dive Number 0 - 50 • Depth 0 - 399 FT (0 - 120 M) 1 FT (.1 M / 1 M) • Maximum Depth 399 FT (120 M) 1 FT (.1 M / 1 M)
Page 49 • Date actual at calibration ACCESSORIES (optional items available from your Authorized Sherwood Dealer) • Lens Guard • PC download package (hardware and software) • Battery Kit - includes 1 battery, 1 battery hatch o-ring, silicone grease •...
Page 50: Glossary
Air Time Remaining (ATR) - The air time a diver has available at that depth before an ascent must begin. Algorithm - A step-by-step mathematical formula designed to accomplish a particular result (i.e. Dive Time Remaining in the Wisdom 3).
Page 51: Altitude Ndl Tables
Wisdom 3 DC Manual NO DECOMPRESSION LIMITS AT ALTITUDE (IMPERIAL) Altitude> 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 Depth 4:20 4:20 3:35 3:21 3:07 2:55 2:45 2:36 2:28 2:21 2:15 2:10 2:04 1:58 2:17...
Page 52: Inspection/Service Record
This rule applies to the use of all dive computers, but is especially important when using the Wisdom 3, due to the personal information it provides.
Page 54: Dive Computer
Wisdom 3 DC Manual Wisdom 3 DIVE COMPUTER MANUAL © 2002 Design, 2011 Doc. No. 12-5274-r01 (8/31/11)

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