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Nitek Dive Rite User Manual

Plus dive computer
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NiTek Plus Dive Computer
NiTek Plus Dive Computer
User Guide
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www.diverite.com

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Summary of Contents for Nitek Dive Rite

  • Page 1 NiTek Plus Dive Computer NiTek Plus Dive Computer User Guide Date of purchase: www.diverite.com...
  • Page 3 Dive Rite’s website (www.diverite.com). He or she must then return the damaged items to Dive Rite, along with a copy of the original purchase invoice or receipt. No warranty service will be performed for other than registered owners.

  • Page 4: Table Of Contents

    Features and functions • 3 Specifications • 5 Warnings • 6 Chapter 2 Using the NiTek Plus • 9 Getting started • 10 Accessing display modes and screens • 11 Time display mode • 12 Dive option set and display mode • 15 Plan mode •...

  • Page 5: Introduction

    Chapter 1 Introduction Summary This chapter provides an overview of the NiTek Plus, lists the NiTek Plus’s features and functions, and covers warning information that should be read before using your NiTek Plus. Content Overview • 2 Features and functions • 3 Specifications •...

  • Page 6: Overview

    The NiTek Plus dive computer is a multifunctional computer for recreational diving, providing information on depth, dive times, no-decompression and decompression times, and nitrogen and O2 absorption and elimination during all dive phases, including ascent, surface interval times, and subsequent dives.

  • Page 7: Features And Functions

    • The NiTek Plus is capable of functioning up to a depth of 328 feet (100 meters) when in dive computer mode and 656 feet (200 meters) when in gauge mode •...
  • Page 8 Special mode indicators makes it easy to determine what display mode or screen you are in at any time • The NiTek Plus has a back light to illuminate the screen, which can be turned on with the touch of a button in surface and dive mode •...

  • Page 9: Specifications

    O2 setting range: Mix1 21 to 50 percent, Mix2 21 to 99 percent O2 setting: 1% increments Dive log Dive logging: Maximum of 60 dives at 30 seconds Profile logging: Maximum of 30 hours at 30 seconds Profile sampling rates: 15 or 30 seconds NiTek Plus Dive Computer User Manual...

  • Page 10: Warnings

    • The NiTek Plus is designed for use by one diver at a time. Divers should not share a single NiTek Plus—or any other dive computer—on the same dive. Additionally, no diver...

  • Page 11: When Diving

    DCI. Use your NiTek Plus conservatively and in conjunction with other dive planning devices, such as dive tables. Do not rely on the NiTek Plus, or any similar device, as your sole means of avoiding decompression illness.
  • Page 12 (along with a separate means of monitoring depth and dive time). • Be aware that the NiTek Plus makes assumptions regarding residual nitrogen based on altitude settings. Avoid making abrupt changes in altitude following a dive, as doing so may be very dangerous.

  • Page 13: Using The Nitek Plus

    Chapter 2 Using the NiTek Plus Summary This chapter provides topics about using, setting, and understanding each of the modes and options of the NiTek Plus. Content Getting started • 10 Accessing display modes and screens • 11 Button operation • 11 Time display mode •...

  • Page 14: Getting Started

    Using the NiTek Plus Getting started The NiTek Plus has many modes and screens and a number of options that can be changed depending on your dive location and profile. The following is a checklist of general things that you should pay attention to before, during, and after a dive.

  • Page 15: Accessing Display Modes And Screens

    Set button: This button is used to set an option’s setting, such as setting the date Lock Select Mode The front of the NiTek Plus, showing the four buttons that are used to access and setup the different modes and options NiTek Plus Dive Computer User Manual...

  • Page 16: Time Display Mode

    Using the NiTek Plus Time display mode Time display mode is the NiTek Plus’s default mode. The computer returns to this mode automatically upon surfacing from a dive and from other modes when a period of time has passed without any buttons being pressed.

  • Page 17: Setting The Time And Date

    5. Press Lock. The computer returns to the time display mode. Setting the dual time The NiTek Plus has the ability to display two different times, which can be set for two different time zones. NiTek Plus Dive Computer User Manual...

  • Page 18: Swapping Primary And Alternate Time

    2. Press Select to swap alternate and primary times. Activating the back light The NiTek Plus has a back light that illuminates the screen. To activate the back light: 1. Press Set. The back light illuminates for four to five seconds.

  • Page 19: Dive Option Set And Display Mode

    Using computer mode Computer mode is when the NiTek Plus is operating in the normal computer mode. “Dive” is displayed on the screen and all computer mode functions operate normally. The dive option set and display mode is used to review and change option settings that pertain to an upcoming dive.

  • Page 20: Setting Mix1 And Mix2 Percentages

    4. Press and release Set to increment the percentage. Press and hold Set to advance the percentages rapidly. The percentage will stop at 32 percent and again at 50 percent. 5. Press Select to advance to mix2. NiTek Plus Dive Computer User Manual...

  • Page 21: Setting The Safety Factor

    5. When finished, press Select to advance to the next option (salt or fresh water use) or press Lock. Setting for fresh or salt water use The NiTek Plus is capable of operating using fresh or salt water calculations. This is based on: •...

  • Page 22: Setting The Dive Profile Sampling Rate

    (dive profile sampling rate) or press Lock. Setting the dive profile sampling rate The NiTek Plus allows you to choose how frequently it samples and stores depth data. The data it samples and stores is used in profile mode or when the data is uploaded to a personal computer.

  • Page 23: Setting The Computer For Metric Or Imperial Operation

    (NDLs) or mandatory decompression stop information. Again, to do so, the NiTek Plus must be set in a manner that accurately matches the concentration of nitrogen being breathed. NiTek Plus Dive Computer User Manual...
  • Page 24 FO2 default setting. Default warning indicated by Nitrox flashing When and how FO2 default occurs One factor in determining if and when your NiTek Plus’s FO2 setting is in default, is whether you set one or both mixes for air or Nitrox.

  • Page 25: Using Gauge Mode

    Using gauge mode If you do not want to use the NiTek Plus as a normal “dive computer,” the NiTek Plus has a gauge mode. Gauge mode is when the NiTek Plus is operating simply as a depth gauge and bottom timer.
  • Page 26 4. Press Select to set for salt or fresh water use. Press Set to toggle between “sea” and “fresh.” 5. Press Select to set the profile sampling rate. Press Set to select 15-second or 30-second. 6. Press Lock. NiTek Plus Dive Computer User Manual...

  • Page 27: Plan Mode

    If the computer is in FO2 default, a series of horizontal lines appear. If the NiTek Plus calculates that there is residual nitrogen present from previous dives, the available no-decompression limits are shorter. Depending on how much residual nitrogen is present, no NDL time may be displayed for some deeper depths.

  • Page 28: Plan Simulation Mode

    Plan simulation mode The NiTek Plus allows you to simulate a dive plan based on residual nitrogen, surface interval time, and depth. This gives you information about how long you can stay at various depths while remaining within the no-decompression limits.
  • Page 29 1. Press Mode until the arrow points to PLAN at the bottom of the screen. 2. Press Lock. 3. Press Select to increase the surface interval time by 30 minutes. 4. Press Set to increase the depth by 10 feet (3 meters). 5. Press Lock. NiTek Plus Dive Computer User Manual...

  • Page 30: Alarm Display And Set Mode

    Using the NiTek Plus Alarm display and set mode The NiTek Plus has the ability to sound daily and hourly alarms. A daily alarm is one that goes off at a specific time every day. When set, the daily alarm beeps twice every second for twenty seconds unless you press one of the computer’s four buttons.
  • Page 31 3. Press Set to set the “hour” time. 4. Press Select. The “minutes” field flashes. 5. Press Set to set the “minutes” time. 6. Press Lock. Note: The daily alarm symbol automatically turns on when you set an alarm time. NiTek Plus Dive Computer User Manual...

  • Page 32: Dive Computer Mode

    This NDL time limit increases when you ascend and decreases when you descend. (2) Dive time: This is the time spent (in minutes) underwater, measured from the time you descended below 5 feet (1.5 meters). NiTek Plus Dive Computer User Manual...

  • Page 33: Second Underwater Screen

    (1) Temperature: This is the lowest temperature that has been reached during the dive. (2) Maximum depth: This is the maximum depth that has been reached during the dive. NiTek Plus Dive Computer User Manual...

  • Page 34: Third Underwater Screen

    2. Release Mode to return to the primary diving mode screen. Changing gas mixes underwater Because the NiTek Plus has the ability to use two different gas mixes during a dive, you need the ability to switch between mix1 and mix2 while underwater. When you switch mixes, the PO2 adjusts to reflect the current mixture you are breathing.

  • Page 35: Safety Stop Indication

    2. Release Lock to return to the primary diving mode screen. Safety stop indication The NiTek Plus has an automatic three-minute safety stop feature built in. On any dive, when you descend below 33 feet (10 meters) and then ascend above 20 feet (6 meters), “safety stop”...

  • Page 36: Warnings While In Diving Mode

    If you ascend and set the mix percentages, you can restart the dive. The Nitrox symbol also flashes, which is the best indication that the computer is defaulted before entering the water. NiTek Plus Dive Computer User Manual...
  • Page 37 Using the NiTek Plus Default warning indicated by Nitrox flashing Ascent rate warning The NiTek Plus assumes that you keep your ascent rate within the following limits: Depth range Ascent rate 0 to 19 feet (0 to 5.9 meters) 26 feet (8 meters) per minute 20 to 58 feet (6 to 17.9 meters)
  • Page 38 See “Understanding FO2 default” for more information. Oxygen limit index (OLI) warning The NiTek Plus’s oxygen limit index (OLI) reflects the cumulative effect of your exposure to elevated partial pressures of oxygen. The PO2 warning only accounts for the intensity of the exposure, but the OLI accounts for both the intensity and length.
  • Page 39 When you enter this violation, the computer’s audible alarm sounds, and the current depth, stop depth, stop time, and “DECO STOP” flashes. These items continue blinking as long as you remain shallower than the indicated stop depth. NiTek Plus Dive Computer User Manual...
  • Page 40 PO2, OLI and deco stop violations, and required decompression stops. For this reason, you should not, under any circumstance, use a NiTek Plus in such a way that would cause an out-of-range warning. Under such conditions, the risk of serious personal injury or death would be substantial.

  • Page 41: Gauge Mode

    To toggle between screens underwater: 1. Press and hold Select to see maximum depth and temperature screen. 2. Press and hold Mode to see the time of day screen. 3. Release buttons to return to the primary screen. NiTek Plus Dive Computer User Manual...

  • Page 42: Log Mode

    Using the NiTek Plus Log mode For each dive, the NiTek Plus stores information, such as depth, time, temperature, etc. in a log. This stored log information can be viewed directly from the NiTek Plus’s screen when in log mode.
  • Page 43 (9) Dive time: This is the actual bottom time for the dive. (10) Average depth: This is the average depth reached during the dive. (11) Temperature: This is the coldest temperature reached during the dive. NiTek Plus Dive Computer User Manual...
  • Page 44 Press Select to scroll “up” through the logged dives. To fast scroll, press and hold Select. 3. Once a dive log is selected, you can use Set and Select to toggle between pages of the dive log. NiTek Plus Dive Computer User Manual...

  • Page 45: Profile Mode

    (30-second rate) or four depth readings (15-second rate) are displayed for each minute during a dive. (4) FO2 percentage: This shows the mix number and FO2 percentage of the gas being used at each point during the dive. NiTek Plus Dive Computer User Manual...
  • Page 46 3. Once a dive profile is selected, the computer automatically progresses through the different depths and times of the dive. Press and hold Set to pause at a certain depth/time. Release Set to continue progressing through the dive. NiTek Plus Dive Computer User Manual...

  • Page 47: Pc Transfer Mode

    Using the NiTek Plus PC transfer mode If you purchased the optional NiTek Plus Docking Station for the NiTek Plus, you can transfer the stored dive log information to your personal computer. For details on using the NiTek Plus Docking Station, refer Note: to the documentation that came with the unit.

  • Page 48: Surface Mode (Upon Surfacing From A Dive)

    Using the NiTek Plus Surface mode (upon surfacing from a dive) Once you surface from a dive, the NiTek Plus automatically switches to time mode. In addition to the normal information displayed in time mode such as time of day, there is other information that is displayed that pertains to the dive you just completed.
  • Page 49 To view surface interval and desaturation time: 1. While in time mode, press and hold Select. The screen switches showing desaturation time and surface interval time. 2. Release Select to return to time mode. NiTek Plus Dive Computer User Manual...

  • Page 50: Altitude Operation

    Using the NiTek Plus Altitude operation The NiTek Plus adjusts automatically for diving at altitudes of up to 19,680 feet (6,000 meters). To show that the NiTek Plus has made the altitude adjustment, it displays the altitude settings using symbols representing mountains.
  • Page 51 Do not place the NiTek Plus in dive mode when making sudden, substantial changes in altitude, such as when flying in an airplane. This can be caused by storing the NiTek Plus with wet dive gear, which can touch its external electrical contacts and cause it to enter dive mode.

  • Page 52: Care And Maintenance

    Chapter 3 Care and maintenance Summary This chapter provides care and maintenance and battery information for the NiTek Plus. Content Proper handling techniques • 50 Low battery warning • 52 Replacing the battery • 52 NiTek Plus Dive Computer User Manual...

  • Page 53: Proper Handling Techniques

    • If the NiTek Plus does not appear to be functioning properly, do not use it to dive. Return it to your authorized Dive Rite dealer for repair. • The NiTek Plus should not come in contact with solvents or...
  • Page 54 Care and maintenance • Do not use compressed air to dry the NiTek Plus • Do not use the NiTek Plus in hyperbaric chambers if the device is not fully submerged in water • Always rinse the computer with freshwater after use •...

  • Page 55: Low Battery Warning

    Always have low batteries replaced promptly. • A depleted battery that is left in a NiTek Plus for a long period of time may leak. Replace batteries promptly. Once the low battery warning appears, you must return the...
  • Page 56 Care and maintenance NiTek Plus Dive Computer User Manual...

  • Page 57: Index

    · 20 using · 15 FO2 percentages current depth · 29 log mode · 40 fresh or salt water use setting · 17 fresh water · 15 daily alarm · 26 NiTek Plus Dive Computer User Manual...
  • Page 58 NDL · 23, 28 gauge mode · 22 nitrogen salt water · 15 log mode · 39 select button · 11 no-decompression limit · 23, set button · 11 NiTek Plus Dive Computer User Manual...
  • Page 59 · 34 log mode · 39 PO2 limit warning · 33 thermometer · 5 water time fresh or salt · 4 dual time · 13 salt or fresh water use · 17 NiTek Plus Dive Computer User Manual...
  • Page 60 Index NiTek Plus Dive Computer User Manual...

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