Suunto VYTEC DS User Manual

SUUNTOVYTEC DSENINSTRUCTION MANUAL

81. INTRODUCTIONCongratulations on your purchase of the SUUNTO VYTEC advanced dive computer. The Vytec builds on the Suunto tradition of delivering fe

9In order to optimize how to respond to different added risk situations an additional category of stop, referred to as a Mandatory Safety Stop, has be

101.1.2. Dive Computer LimitationsWhile the dive computer is based on current decompression research and technology, you must realize that the comput

11The timekeeping display is the default display of the instrument (Fig. 2.1.). If a button is not pressed within 5 minutes, the dive com puter beeps

12Press the SMART (MODE) button • To activate the dive computer.• To change from the Surface Mode to the menu based modes.• To select, confi rm or q

132.4. WIRELESS CYLINDER PRESSURE TRANSMISSIONThe Vytec can be used together with an optional wireless cylinder pressure transmitter that can easily

142.4.2. Pairing and Code SelectionIn order to receive wireless data the transmitter and the Vytec wrist unit need to be paired. During the pairing p

15The selected transmission code can later be verifi ed via the alternative display, by pressing the “TIME” button twice. If needed, the stored code ca

16In case the transmitter battery is running low, a low battery warning “LOBT” will be transmitted and displayed intermittently with the pressure read

17QUIT 3. DIVING WITH THE VYTECThis section contains instructions on how to operate the dive computer and interpret its displays. You will fi nd that

QUICK REFERENCE GUIDE

18• the instrument displays correct units of measurement (Metric/Imperial)• the instrument displays correct temperature and depth (0.0 m [0 ft])• t

19The Battery Power Indicator can always be seen when the Dive Mode is activated. The electroluminescent backlight will be on during the battery check

20If the battery symbol is displayed in the Surface mode or if the display is faded or weak, the battery may be too low to operate the dive computer a

21The surface interval must be at least 5 minutes for a dive to be considered a repetitive dive. Otherwise, it is considered a continuation of the sam

223.2.2. Mandatory Safety StopWhen the ascent rate exceeds 12 meters/min [40 ft] momentarily or 10 meters/min [33ft] con-tinuously the micro-bubble b

233.2.3. Deep StopsThe Suunto Vytec allows the user to choose a deep stop algorithm instead or the traditional recommended safety stop. Deep Stops are

24• the Personal Adjustment setting on the left side of the center window with a diver symbol and + signs (P0, P1, or P2) (see Table 3.5.)• the Dive

25shown in the left center window of the display. The calculation is always based on the actual pressure drop in your cylinder and will automatically

26Red Zone – As all of the bars appear (red zone), your no-decompression stop time has become zero and your dive has become a decompression stop dive

273.3.6. Safety Stops and Deep StopsIf Deep Stops are not used a 3 minute Recom-mended Safety Stop is prompted after every dive to 10m depth (fi g. 3.

1DEFINITION OF WARNINGS, CAUTIONS AND NOTESThroughout this manual, special references are made when deemed important. Three classifi cations are used t

28plus• the time needed to reach the surface after the ceiling and safety stops have been completed.WARNING!YOUR ACTUAL ASCENT TIME MAY BE LONGER T

29lift you above the ceiling. Suunto recommends that decompression takes place deeper than 4 m [13 ft], even if the indicated ceiling is shallower.NOT

30DISPLAY ABOVE THE CEILINGIf you ascend above the ceiling during a de-compression stop, a downward pointing arrow will appear and a continuous beepin

31on Nitrox use result in longer no-decompression times and shallower maximum depths than div-ing with air.As a safety precaution the oxygen calculat

32label NITROX, is shown after activation. In Dive Planning mode the Nitrox display shows (Fig. 3.21.):• the oxygen percentage, labeled with O2%, is

33After fi ve seconds the display will automatically revert to the original display.3.4.3. Oxygen Limit Fraction (OLF)In addition to tracking the dive

34set maximum oxygen partial pressure. Tissue calculation during dive is based on the mix you have selected. The Vytec allows gas change to enabled ga

35Tank pressure and ascent rate indicator are also displayed during the dive (Fig. 3.28.). Remaining Air Time, temperature and current time are shown

36Or when the TIME button is pressed once or twice:• the current time, shown as TIME instead of the DIVE TIME• the current temperature with °C for C

37in the Planning Mode will increment to the next higher number if another dive is made.TABLE 3.3. WARNING SYMBOLS3.6.3. Flying After DivingThe no-fl y

2PrEN 13319PrEN 13319 ”Diving accessories – Depth gauges and combined depth and time measuring devices – Functional and safety requirements, test meth

38• If a diver had less than 2 hours total accumulated dive time in the last 48 hours, then a 12 hour surface interval before fl ying is recommended.•

39You are able to preset alarms before the actual dive. The user program-mable alarms can be set for maximum depth, dive time and time. The alarms act

403.8. HIGH ALTITUDE DIVES AND PERSONAL ADJUSTMENTThe dive computer can be adjusted both for diving at altitude and also to increase the conservatism

41• cold exposure - water temperature less than 20 °C [68 °F]• the diver is below average physical fi tness level• diver fatigue• diver dehydra

42mode (RGB50). See Table 3.6. To advise the diver that attenuated RGBM has been set, the Diver Attention Symbol is constantly displayed (Table 3.3.)T

434. MENU BASED MODESTo make yourself familiar with the menu based functions, please use your Quick Re ference Guide supplied with the Vytec to gethe

44EXIT / QUIT!By pressing the SMART button for more than 1 second, any menu based function or submode can be quit and the dive computer will return di

454.1. MEMORIES AND DATA TRANSFER [1 MEMORY]The memory options (Fig. 4.5.) for this dive computer include the combined Logbook and Dive Profi le Memory

46When Select is displayed next to the mode but-ton the scroll buttons will scroll through the four pages of the selected dive.The END text is display

47Page III (Fig. 4.9.)• dive number in the dive series• average depth• surface interval time before the dive• DP describing Cylinder pressure drop

3WARNING!THERE IS ALWAYS A RISK OF DECOMPRESSION ILLNESS (DCI) FOR ANY DIVE PROFILE EVEN IF YOU FOLLOW THE DIVE PLAN PRESCRIBED BY DIVE TABLES OR A DI

48DIVE PROFILE MEMORY [PROF]The scrolling of the profi le will start automati-cally when the Logbook page IV (PROF) is entered.With the default setting

494.1.3. Data Transfer and PC-Interface [3 TR-PC]The instrument can be connected to an IBM compatible personal com-puter (PC), using the optional PC-

50NOTE! While in the Data Transfer mode, the connector/water contacts are used only for the data transfer. The Dive Mode IS NOT automati-cally activat

51multiple gas mixes are set they will be changed as soon as allowed maximum depth is reached upon ascent and in the order of: MIX1, MIX2 and MIX3To e

52OK4.3.1. Dive Parameter Settings [1 SET DIVE]To enter the Dive Parameter Setting Mode select MODE- 3 SET- 1 SET DIVE. The Dive Parameter Setting mo

53Now you are able to select from the three alti-tude modes (Fig. 4.23.) and the three personal modes (Fig. 4.24.) and the two RGBM effect, full norma

54When in the Nitrox Setting mode the equiva-lent allowed maximum depth based on the chosen setting will also be displayed. Settings for additional mi

554.3.2.2. Adjusting Date [2 AdJ DATE]To enter the Date Setting Mode select MODE- 3 SET- 2 SET TIME- 2 AdJ DATE. After enter-ing this mode you are abl

56NOTE! When the backlight turned OFF, it does not illuminate when an alarm is given. 4.3.3.2. Dive Computer Units Setting [2 UNITS]To enter the Dive

575. CARE AND MAINTENANCEThis SUUNTO dive computer is a sophisticated precision instrument. Though designed to withstand the rigors of scuba diving yo

4WARNING!YOU ARE ADVISED TO AVOID FLYING ANY TIME THE COMPUTER COUNTS DOWN THE NO-FLYING TIME. ALWAYS ACTIVATE THE COMPUTER TO CHECK THE REMAINING NO-

58• Protect the unit from shock, extreme heat, direct sunlight, and chemical attack. The dive computer cannot withstand the impact of heavy objects l

59computer, there is a leak. A leak must be corrected without delay, as mois-ture will seriously damage the unit, even beyond repair. SUUNTO does not

60TOOLS REQUIRED• A fl at 1.5 mm screwdriver or a special tool for spring bars (K5857).• Soft cloth for cleaning.• Needlenose pliers or large screwdr

618. Check the condition of the O-ring; a defective O-ring may indicate sealing or other problems. Dispose the old O-ring, even if it seems to be in

62• Assemble the shorter part of the strap. Use the spring bar tool or small screwdriver to compress the spring bars. Make sure that the spring bars

63CAUTION!Defects caused by improper battery installation are not covered by the warranty.BATTERY KITThe transmitter battery kit includes a 3.0 V CR ˚

64NOTE! It is imperative to wait at least 30 seconds before re-installing the transmitter battery.When the battery is re-installed the transmitter se

65TABLE 6.1. NO-DECOMPRESSION TIME LIMITS (MIN) FOR VARI-OUS DEPTHS (M) FOR THE FIRST DIVE OF A SERIESTABLE 6.2. NO-DECOMPRESSION TIME LIMITS (MIN) FO

66Before high altitude diving, the instrument must be set to the Altitude Adjustment mode to adjust the calculations for the new altitude. The maximum

67Also on repetitive dives adjustment may be applied to the maximum al-lowable nitrogen overpressure in each theoretical tissue group.Depending on cir

5WARNING!THE DIVE COMPUTER WILL NOT ACCEPT FRACTIONAL PER-CENTAGE VALUES OF OXYGEN CONCENTRATION. DO NOT ROUND UP FRACTIONAL PERCENTAGES! For example,

68• the blinking of the bar graph stops, when the PO2 is below 0.5 bar• audible alarms are given and the actual PO2 value blinks when it exceeds the

69Other displays:• Dive time: 0 to 999 min, counting starts and stops at 1.2 m [4 ft] depth.• Surface time: 0 to 99 h 59 min.• Dive counter:

70and dive violations. The “M” values are tracked up to 100 hours after a dive.• The EAN and oxygen exposure calculations are based on recommendation

71The following conditions have an affect on the expected battery lifetime:• The length of the dives.• The condition in which the unit is operated a

72made at the owner’s expense. This warranty is non-transferable from the original owner.All implied warranties, including but not limited to the impl

738.2. SUUNTOSPORTS.COM SECTIONSSuuntoSports.com includes three sections with several functions. The following paragraphs describe only the basic func

74All groups have a home page that displays information about group events and includes news, noticeboard and other information. Group members can als

759. GLOSSARYAir Time The amount of dive time remaining, based on a calculation of cylinder pressure and ambient pressure and present air consump-ti

76Decompression Time spent at a decompression stop or range before surfacing, to allow absorbed nitrogen to escape naturally from tissues.Decompressi

77Half-time After a change in ambient pressure, the amount of time required for the partial pressure of nitrogen in a theoretical compartment to go

6TABLE OF CONTENTSWARNINGS! ... 21. INTRODUCTION

78O2% Oxygen percentage or oxygen fraction in the breathing gas. Standard air has 21% oxygen.Oxygen partial pressure Limits the maximum depth to whi

79Tissue group Theoretical concept used to model bodily tis-sues for the construction of decompression tables or calculations.Whole-Body Toxicity An

80DISPOSAL OF THE DEVICEPlease dispose of the device in an appropriate way, treating it as electronic waste. Do not throw it in the garbage. If you wi

5 MODELMENU BASED SUBMODE 1MENU BASED SUBMODE 2MODES ANDOPERATIONSMENU BASEDMAIN MODEActivate the timekeeping displayLCD &batterychecknitrox /gaug

Printed in Finland 08.2005 / Esa Print Oy / 151047

www.suunto.comMade in Finland© Suunto Oy 01 / 2004, 08 / 2005

73.8.1. Altitude Adjustment .................. 403.8.2. Personal Adjustment ......