Sherwood Scuba SAGE Manual

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DIVE COMPUTER MANUAL

Doc. No. 12-7864-r06 (8/21/17)

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Page 2: Table Of Contents
SAGE MANUAL CONTENTS WARNINGS AND SAFETY RECOMMENDATIONS ��3 ALT 2 ��39 DEEP STOP PREVIEW ��39 DEEP STOP MAIN ��39 NOTICES ��4 SAFETY STOP MAIN ��39 SURFACING ��40 GETTING STARTED ��5 GAS SWITCHING ��41 COMPLICATIONS ��42 BASICS ��6 DECOMPRESSION ��42 INITIAL ACTIVATION ��6 DECOMPRESSION ENTRY ��42...
Page 3: Warnings And Safety Recommendations
SAGE MANUAL WARNINGS AND SAFETY RECOMMENDATIONS • The Sage is intended for use by recreational divers who have successfully completed a nationally recognized course in scuba diving, and diving with enriched nitrogen-oxygen (nitrox) breathing gas mixtures. • It must not be used by untrained persons who may not have knowledge of the potential risks and hazards of scuba diving, and diving with en- riched nitrogen-oxygen (nitrox) mixtures.
Page 4: Notices
Should your Sage prove to be defective for any reason (other than those listed in the limitations section below) it will be repaired or replaced (at Sherwood Scuba's discretion) free of charge excluding shipping and handling charges.
Page 6: Basics
The Sage is an easy to use dive computer utilizing a three button interface. Divers may choose between either Air/NX (dive) or Gauge Mode. Though the Sage is easy to use, you will get the most out of your new Sage if you take some time to familiarize yourself with its displays and opera- tion.
Page 7 CAUTION: Once the battery cover is installed, the Sage will prompt you to choose the correct battery type. The choices are rechargeable or non-rechargeable. The Sage will measure the battery and make a best guess of the battery type. Though it is up to the diver to ensure the proper selection is made.
Page 8: Quick Disconnect Hose ��8 Delayed Violation 1
Removal • Turn the locking collar counterclockwise to loosen. • Then push the hose bayonet fitting towards the Sage and turn it counterclockwise ¼ turn. The hose will release from the console. Assembly • Visually inspect the fittings and connection O-ring for damage, corrosion, or deterioration.
Page 9: Display Icons ��9 Delayed Violation 2
SAGE MANUAL DISPLAY ICONS SYMBOL MEANING DEPTH (FEET OR METERS) SAFE MINUTES (DIVE TIME REMAINING) SAFE MINUTES VALUE IS AIR TIME REMAINING SAFE MINUTES VALUE IS OXYGEN TIME REMAINING TOTAL ASCENT TIME ELAPSED DIVE TIME VALUE IS GAS PRESSURE IN PSI OR BAR...
Page 10: Buttons
NX 32 BUTTONS The Sage utilizes 3 control buttons called the MODE, ADV (Advance), and SELECT buttons. They allow you to select mode options and access specific information. They are also used to enter settings and acknowledge the audible alarm.
Page 11: Button Functions
SAGE MANUAL BUTTON FUNCTIONS ACTION FUNCTION • to access main menus from main screens • to step up the screen, backward through selections • to toggle or change setpoints • to select, save an option or setting • to access Alt screens •...
Page 13: Safe Minutes (Dive Time Remaining)
SAFE MINUTES (DIVE TIME REMAINING) The Sage constantly monitors No Decompression status, O2 Accumulation, Air Time Remaining, and it will display whichever time is the least amount available as Safe Minutes on the No Decompression Dive Main screen. Times other than No Decompression will be identified further with an O ATR (Air Time Remaining) icon.
Page 14: Atr (Air Time Remaining) ��14 On The Surface Before A Dive
Pressure Alarm setting). The Sage calculates ATR using a patented algorithm that is based on a diver's individual air consumption rate and current depth. Tank Pressure is measured once each second and an average rate of consumption is calculated over a 60 second period. This rate of consumption is then used in conjunction with a knowledge of the depth dependence to predict the air required for the diver to make a safe controlled ascent including any Stops.
Page 15: Algorithm
Refer to the charts in the back of this manual for dive times. DS (DEEP STOP) When the DS selection is set ON, it will trigger after descending deeper than 80 ft (24 m). The Sage then calculates (continually updating) a Stop Depth equal to ½ the Max Depth.
Page 16 • The battery icon appears solid upon entry into Surface mode. Alarm Level • The Sage functions continue but screen brightness is limited to 60% max. • The Battery icon appears flashing. 5 seconds after entering Surface mode the Sage will shut down. LOW BATTERY DIVE TIME...
Page 18: On The Surface Before A Dive
SAGE MANUAL ON THE SURFACE BEFORE A DIVE The AIR/NX Main screen will display the Dive Time and the selected FO2 of the breathing gas. The surface time displayed is the time since activation or the surface interval after a dive.
Page 19: Alt 1 (Last Dive)
SAGE MANUAL ALT 1 (LAST DIVE) The ALT 1 screen displays essential data from the last dive. This screen is bypassed if there has been no previous dive within the current activation cycle. LAST DIVE 10:39 11.25.16 DIVE TIME 0:43 ALT 2 The ALT 2 screen displays current elevation and temperature.
Page 20: Main Menu
SAGE MANUAL MAIN MENU To plan dives, set gases, alarms, and change other settings you must navigate through the Main Menu. Enter the menu by pressing the MODE but- ton. Press the SELECT button to choose options highlighted in white. All Main Menu options will be discussed in the order they appear in the menu below.
Page 21: Set Gas
The corresponding MOD (Maximum Operating Depth) will display with the current PO2 Alarm setting for the selected gas. Addition- ally, the Sage allows for each gas (1 - 3) to have individual PO alarm settings. Default settings are FO Air with no PO alarm value for Gas 1, and OFF for Gas 2 and 3.
Page 22: Alarms
SAGE MANUAL 2. ALARMS Within this submenu you can customize the following seven alarm settings. When one of these alarms is triggered the critical data will flash on the Dive Main screen. ALARMS MENU RESERVE TIME to select N2BG AUDIBLE...
Page 23: B� Ascent
SAGE MANUAL B. ASCENT Factory set ON, the Ascent Alarm can also be set OFF. When set OFF, the alarm will not sound as ascent rate increases. SET ASCENT ALARM to save setting OFF, ON to toggle to toggle selection selection C.
Page 24: D� Turn
SAGE MANUAL D. TURN The Turn (Pressure) Alarm allows you to set an alarm to go off at a designated turn pressure. You may choose from OFF or 1000 to 3000 PSI (70 to 205 BAR) in increments of 250 PSI (5 BAR).
Page 25: F� Reserve Time
SAGE MANUAL F. RESERVE TIME The Safe Minutes (dive time remaining) display shows No Decompression Time, O2 Time, or Air Time Remaining, the least avail- able at that moment. Whichever decreases to the value set will sound the Alarm. Factory set ON, the Reserve Time Alarm can also be set OFF. When set OFF, the Alarm will not sound as Safe Minutes de- creases toward 0 minutes.
Page 26: Utilities
SAGE MANUAL 3. UTILITIES Within the Set Utilities menu you can customize the following five operational functions. UTILITIES MENU DEEP STOP to select an option SENSOR UNITS SAMPLE RATE back to Setup Menu to scroll to scroll down A. H20 SENSOR The H2O Sensor feature allows you to set SALT or FRESH water environment for accurate depth calculations.
Page 27: B� Units
Alternately, the PC Download function stores much larger files for each dive. Depending on the chosen settings and dive dura- tions, it is possible to see dives stored in the Sage's onboard Log that have already been overwritten in the PC Download Parti- tion.
Page 28: D� Deep Stop
SAGE MANUAL D. DEEP STOP The Deep Stop feature (see p. 15) can be set ON or OFF. SET DEEP STOP to save setting OFF, ON to toggle to toggle selection selection E. CF (CONSERVATIVE FACTOR) The Conservative feature (see p. 15) can be set ON or OFF...
Page 29: Date, Time
SAGE MANUAL 4. DATE, TIME Within this menu you can set the formats, date, and time of day. DATE, TIME MENU HOUR SET DATE to select an option FORMAT SET HOUR DATE FORMAT back to Setup Menu to scroll to scroll down A.
Page 30: B� Set Hour
SAGE MANUAL B. SET HOUR Set the hour, minute, and AM/PM if set for 12 hour format. SET HOUR 12 : 46 to save hour, min, or AM/PM to decrease to increase value value C. DATE FORMAT Choose between M.D.Y (Month.Day.Year) or D.M.Y (Day.Month.Year) format.
Page 31: D� Set Date
SAGE MANUAL D. SET DATE Set the year, month, and day. SET YEAR SET MONTH 2016 to save to save year month FEBRUARY 2016 - 2065 to decrease to increase to decrease to increase value value value value SET DAY...
Page 32: Bluetooth
6. SET AUTO DIM While underwater the Sage screen dims after a set time interval from the last button press. This is done to reduce distractions during the dive and to conserve battery power. The Sage allows you to customize the time interval and degree of dimming. This feature may also be turned off.
Page 33: Mode
JANE DOE +90 111 222 4444 DC (DIVE COMPUTER) INFO Information displayed on the DC Info screen should be recorded and kept with your sales receipt. It will be required in the event that your Sage requires factory service. DC INFO...
Page 34: Plan
SAGE MANUAL PLAN This mode calculates dive depth and time limits. To do so, it accounts for any residual nitrogen, oxygen, surface intervals, the programmed gas mix, and PO alarm setting. Either SAFE MINUTES (No Decompression Time) or SAFE MINUTES O2 (Oxygen Toxicity Time) limits are displayed, depend- ing on whether nitrogen or oxygen levels will be the limiting factor.
Page 35: Log
SAGE MANUAL The log stores information from AIR/NX and GAUGE mode dives for viewing. • If no dives are recorded, the message NONE YET will be displayed. • There is a maximum of 24 entries per activation period. • After exceeding 24 entries the oldest entries will be deleted to allow space for the new entries.
Page 36: History
SAGE MANUAL HISTORY History is a summary of basic data recorded during all AIR/NX and GAUGE dives. TOTAL DIVES MAX DEPTH to exit 2:32 MAX DIVE TIME LEV3 MAX ELEV © Pelagic, 2017 Doc. No. 12-7864-r06 (8/21/17)
Page 38: Initiating A Dive
SAGE MANUAL INITIATING A DIVE With the Sage in AIR/NX Mode, a dive will commence upon descending to 5 ft (1.5 m) for at least 5 seconds. Below is a diagram to help you navi- gate AIR/NX Mode functions. AIR/NX DIVE MAIN...
Page 39: Alt 2
SAGE MANUAL ALT 2 The ALT 2 screen displays information pertaining to nitrox; it is bypassed if the Sage is set for air. O2 Safe Minutes time) current 0-599 min, all value times greater than 599 display as saturation 0-100%...
Page 40: Surfacing
SURFACING Upon ascending to 0.9 m (3 ft) the Sage transitions to AIR/NX Surface mode. For the first 10 minutes after a dive the Sage will continue to display the maximum depth and elapsed dive time. Once the surface time reaches 10 minutes the Sage will display the standard AIR/NX Surface screen.
Page 41: Gas Switching
Sage. • If you exceed certain limits, the Sage will not be able to help you get safely back to the surface. These situations exceed tested limits and can result in loss of some functions for 24 hours after the dive in which a violation occurred.
Page 42: Complications
COMPLICATIONS The preceding information has described standard dive operations. Your new Sage is also designed to help you to the surface in less than ideal situ- ations. The following is a description of these situations. Take some time to familiarize yourself with these operations before diving your Sage.
Page 43 • If the DV1 status is ignored, the Sage will enter DV1 Surface mode for 5 minutes upon surfacing from the dive. Down arrows and Deco Stop depth/time will flash with the DOWN message. After 5 minutes on the surface in DV1 mode, the unit will enter VGM (Violation Gauge Mode).
Page 44: Delayed Violation 3
Only dashes will display for Current Depth signifying that you are too deep. * The maximum functional depth (AIR/NX or GAUGE = 330 ft / 100 m) is the depth at which the Sage can properly perform calculations or provide accurate display information.
Page 45: High O2 Sat (Oxygen Saturation)
SAGE MANUAL Alarm If PO2 continues to increase and reaches the alarm set point, the audible alarm sounds again. The PO2 value (in place of DIVE TIME), HIGH PO2 message, and up arrows (if not in decompression) will flash continually until PO2 decreases below the alarm set point.
Page 47 SAGE MANUAL ON THE SURFACE BEFORE A DIVE Gauge Surface Main is nearly identical to AIR/NX Mode's Main screen. Unlike AIR/NX Mode, there will be no N2 tissue saturation or gas mix values displayed. GAUGE SURFACE MAIN GAUGE SURFACE MAIN...
Page 48: Gauge Surface Main Menu
SAGE MANUAL GAUGE SURFACE MAIN MENU To access the log or change settings you must navigate through the Gauge Menu. Enter the menu by pressing the MODE button. Press the SELECT button to choose options from the Gauge Menu. 10 : 46 7.28.16...
Page 49: Gauge Dive Alt
INITIATING A DIVE With the Sage in Gauge Mode, a dive will commence upon descending to 5 ft (1.5 m) for longer than 5 seconds. Below is a diagram to help you navigate Gauge Dive Mode functions. The dive will end and revert to Surface Mode upon ascent to 3 ft (0.9 m) of depth for at least 1 second.
Page 50 The max depth on the Alt screen will also be represented by dashes. * The maximum functional depth (Dive/Gauge= 330 ft/100 m) is the depth at which the Sage can properly perform calculations or provide accurate display information.
Page 52 SAGE MANUAL COMPASS DISPLAY ICONS 281° 281° DEPTH OR SURFACE TIME REFERENCE OR REVERSE HEADING ASCENT RATE HEADING HEADING MARKER CARDINAL & INTERCARDINAL POINTS DIVER'S DIRECTION (LUBBER LINE) © Pelagic, 2017 Doc. No. 12-7864-r06 (8/21/17)
Page 53: Overview
SELECT button for at least 2 seconds. • The Sage reverts back to the previous operation mode after 1 minute unless the Compass Mode is reset by pressing any of the buttons. See the Timeout section at the end of this chapter for further details.
Page 54: Compass Menu
The Compass Menu allows you to adjust compass accuracy. The different selections will be described in the order they appear in the menu. NOTE: The Compass Menu can only be accessed while on the surface. During a dive the Sage will use the last saved settings when accessing the Compass Mode.
Page 55 SAGE MANUAL The message READY PASSED CALIBRATION or FAILED TO CALIBRATE TRY AGAIN will then appear. CALIBRATE CALIBRATE   READY FAILED TO CALIBRATE PASSED CALIBRATION TRY AGAIN SET DECLINATION Magnetic declination or variation measures the angle between the Earth's magnetic north and true north. The declination value for any region can be found on current geographical charts.
Page 56: Set Heading
SAGE MANUAL SET HEADING Pressing the Advance button while on the Compass Main screen will set a heading. The message HEADING SET is confirmation of your heading be- ing set. The heading is then represented by a green marker. Pressing the Advance button a second time will set the reverse (reciprical) heading. The (reverse) heading is also represented by a green marker.
Page 58: Uploading/Downloading
Sage lens protector. Small scratches will naturally disappear underwater. • Soak and rinse the Sage in fresh water at the end of each day of diving, and check to ensure that the areas around the PC interface data port, and buttons are free of debris or obstructions.
Page 59: Specifications
SAGE MANUAL SPECIFICATIONS CAN BE USED AS • Air Computer • Nitrox Computer • Digital Depth Gauge/Timer NO DECOMPRESSION MODEL Basis: • Modified Haldanean Algorithm • 12 tissue compartments Data Base: • Diving Science and Technology (DSAT) - Rogers/Powell Performance: •...
Page 60: Specifications (Continued)
• Red (Alarm) - Red Icon flashing on the Surface and Dive Main screens. If during a dive, the message LOW BATTERY flashes. If on the surface, the message CHANGE BATTERY flashes until the unit shuts off. The battery must be changed before using your Sage Operating Temperature: •...
Page 61 SAGE MANUAL NO DECOMPRESSION LIMITS AT ALTITUDE (IMPERIAL) Altitude> 0 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 2:17...
Page 62: Inspection / Service Record
If you dive in situations where your trip would be ruined or your safety would be jeopardized by losing the use of your Sage, a backup instrument system is highly recommended.

Sherwood Scuba SAGE Manual

1 Set Gas

2 Alarms

3 Utilities

4 Date, Time

5 Bluetooth

6 Set Auto DIM

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