Crest Audio CR-5 User Manual
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Crest Audio CR-5 User Manual

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CREST CR-5
English User Guide
Applicable SW version: CR5040
Version number: V 1.0
Update date: 2021/09/27

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Summary of Contents for Crest Audio CR-5

  • Page 1 CREST CR-5 English User Guide Applicable SW version: CR5040 Version number: V 1.0 Update date: 2021/09/27...

  • Page 2: Table Of Contents

    CR-5 English User Guide Contents 1.Diving Safety Guide 2.Getting Started Guide 2.1 Maintenance 2.2 Charging 2.3 Wearing CR-5 2.4 Forced Shutdown 2.5 Buttons 3.Watch Mode 3.1 Screen and Function 3.2 History Record 4. Diving Mode 4.1 Scuba Mode 4.1.1 Scuba Mode Screen and Function 4.1.2 Scuba Mode Settings...
  • Page 3 6.6 Reset 6.7 About 7. Logs 8. Navigation 9. Timer 10. Heart Rate Watch 11. Synchronization and APP 12. Disclaimer 12.1 User's Responsibility 12.2 About Flying After Diving 13. Limited Liability Warranty 14. Contact CREST 15. Copyright Statement 16. Appendix 16.1 Product Specifications 16.2 Diving Terms and Explanations 16.3 NCC Warning...

  • Page 4: Diving Safety Guide

    1.Diving Safety Guide 1.1 Please ensure that you fully understand how to use your dive equipment and the CR-5 dive function and what the information displayed on this product means. If you have any questions about this product, please always contact your CREST dealer for answers prior to your diving activity and use.
  • Page 5 as backup instruments and always compare your dive plan and check the remaining residual pressure. 1.8 This product is factory tested to a depth of 100 m/330 ft and is intended for recreational diving only. CREST strongly recommends that recreational divers do not exceed the maximum depth of 40 m/131 ft specified for recreational diving (air diving), or the maximum depth allowed by your dive training, and do not use it in diving environments where you are not trained...
  • Page 6 1.14 Before diving, please make sure that the settings of this product are correct and fit your dive plan, e.g. the oxygen ratio of the gas to be used, and input them into this product. Failure to personally confirm the contents of the oxygen cylinder, or to set the correct personalized adjustment settings, may result in incorrect calculation of the dive plan and dive information, and in severe cases may result in the diver's life being in...

  • Page 7: Getting Started Guide

    2.Getting Started Guide 2.1 Maintenance 1. Storage: Please keep this product in a cool place, do not place it in a dangerous environment, squeeze, heavy pressure, high temperature, low temperature, high humidity, easy to drop, heavy impact, etc. If the product is not used for a long time, please make sure that the power supply is at least 50%, and check and charge it regularly.

  • Page 8: Charging

    2.4 Forced Shutdown When your CR-5 is off, just press and hold the power button at the bottom left corner for about 15-20 seconds, the CR5 will turn off forcibly, press the power button again and it will turn on normally.

  • Page 9: Buttons

    2.5 Buttons Button Function -backlight On/Off -press and hold for ① Backlight two seconds for the backlight to stay on -return ② Back -power switch ③ -move up -mode selection ④ Mode -confirm selection -pause (sport mode) ⑤ Down -move down Page 9...

  • Page 10: Watch Mode

    3.Watch Mode 3.1 Screen and Function 3.1Screen Functions Time Screen (Start Screen) Start screen, the watch-face can enter the settings to change. (Path: Settings > Set System > Watch Face) Access: Power on or press the back button on any screen to exit to the top level.

  • Page 11: History Record

    Please refer to historical records and version information for exact no-fly times. 3.No-dive time： If this symbol appears, it means you are still in the no-dive time after the dive, please do not dive again. Please refer to your dive history and version information for the exact no-dive time.

  • Page 12: Diving Mode

    Freediving History Access：Press the DOWN button three times in watch mode to access. Icon： 1. Dives：All freediving logs accumulation 2. Max Time：The longest time in all freediving logs 2. Max Depth：The maximum depth in all freediving logs Freediving History 4. Diving Mode 4.1 Scuba Mode 4.1.1 Scuba Mode Screen and Function 4.1.1 Scuba Mode Screen and Function...
  • Page 13 SI：current surface interval time. (less than 10 hours: HOUR:MINUTE After 10 hours: HOUR After 24 hours: --) Scuba Dive Mode - Surface Preview, Underwater Twist-to-next information Twist-to-next： This feature detects a rotation of your wrist and helps you turn the page automatically without pressing a button while diving.
  • Page 14 Scuba Mode – Safety stop (When the NDL has not been exceeded) Description： 004.6m：Current Depth STOP：When divers ascend to 5m (16.4 ft), the diver computer will start a Safety Stop countdown of 5 minutes automatically. If the diver does not complete Safety Stop and ascent, there will be an alarm warning (short beeping repeated) with vibration, and this dive will end...
  • Page 15 Scuba Mode – Underwater When the NDL has been exceeded (first three minutes) Description： NDL：The Non-Decompression Limit time in minutes, will show 99 when NDL exceeds 99 minutes. If it reaches 4 minutes remaining, there will be an alarm warning (short beeping repeated) with vibration.
  • Page 16 If you do not remain at the ceiling depth for the entire duration indicated by the countdown timer, there will be an alarm warning (short beeping repeated) with vibration. CEILING: The depth at which divers should ascend to and remain when they are required to perform decompression stops.
  • Page 17 Scuba Mode – Scuba End Screen will show Dive Profile of current dive for approximately 1 minute. To check entire history dive logs and dive profiles, select the log and press the DOWN button to go to the second page to view. Scuba Mode –...

  • Page 18: Scuba Mode Settings

    4.1.2 Scuba Mode Settings 4.1.2 Scuba Mode Settings Path： 1. Menu > Settings > Set Dive > Scuba 2. Menu > Diving > Scuba > Press the UP button > Scuba Quick Setup Set Gas After entering this setting, press the up/down button to select the O2 value after it blinks, then press the mode button to confirm the setting value and stop blinking to set the PO2 value.
  • Page 19 Scuba Depth Alarm After entering this setting, press the up/down button to select on after the blinking, then press the mode button to confirm the setting value and stop blinking to set the depth; if you select off, the depth cannot be set.

  • Page 20: Freediving Mode (Free Mode)

    4.2 Freediving Mode (Free Mode) 4.2.1 Freediving Mode Screen and Function 4.2.1 Freediving Mode Screen and Function Freediving Mode - Surface preview Description： FD：abbreviation of Freediving mode. The Freediving Sampling Rate is 0.5 seconds fixed by default. 00：Total freediving counts within 12 hours TEMP：Water temperature SI：Surface Interval（MINUTE : SECOND）...
  • Page 21 Freediving Mode - Maximum Rate (Maximum Rate calculations are based on total freediving history executed with this dive computer within 11 hours.) To Access: Press DOWN Button under Freediving Mode. Ascent：MAX Ascent Speed Descent：MAX Descent Speed Depth：MAX Depth Time：MAX Descent time Freediving Mode - Maximum Rate Freediving Mode - Average Rate (Average Rate calculations are based on total...

  • Page 22: Freediving Mode Settings

    4.2.2 Freediving Mode Settings 4.2.2Freediving Mode Settings Path： 1. Menu > Settings > Set Dive > Free 2. Menu > Diving > Free > Press the UP button > Freediving Quick Setup Freediving Depth Alarm 1.After entering this setting, press the up/down button to select on after the blinking, then press the mode button to confirm the setting value and stop blinking to set the depth;...

  • Page 23: Gauge Mode

    4.3 Gauge Mode 4.3.1 Gauge Mode Screen and Function 4.3.1 Gauge Mode Screen and Function Gauge Mode - Surface Preview Description： ：Battery Indication GA：abbreviation of Gauge mode. 000.0 m：Current depth AVG：Average Depth STPW: Stop Watch SI：current surface interval time. (less than 10 hours: HOUR:MINUTE After 10 hours: HOUR After 24 hours: --) TEMP：Water temperature...
  • Page 24 Gauge Mode - Surface Preview, Underwater Twist-to-next information Twist-to-next： This feature detects a rotation of your wrist and helps you turn the page automatically without pressing a button while diving. This feature is on by default and can be turned off. (Path: Settings＞Set dive＞Twist to next) Gauge Mode - Surface Preview, Underwater...
  • Page 25 Gauge Mode – No Diving If NO DIVE recommendation time countdown shows on the screen, DO NOT continue diving activities. For an exact NO DIVE recommendation time countdown please check the Dive History page. Note: Scuba Mode, Freediving Mode and Plan Mode will Gauge Mode –...

  • Page 26: Plan Mode

    4.4 Plan Mode 4.4.1 Plan Mode Screen and Function 4.4.1 Plan Mode Screen and Function Plan Mode Description： ：：Battery Indication Up Left Corner (O2%): Oxygen percentage value. NORM：Conservatism level Default: Normal (NORM). Available values: conservative (CONS), normal (NORM), and aggressive (AGGR). DEPTH (MOD)：Maximum Operating Depth suggestions.
  • Page 27 Please note: 1. Changing settings of Scuba mode such as: O2%, CF values and PO2 will affect the calculation of NDL and MOD values shown in Plan Mode. 2. Previous dives executed on this dive computer and its residual nitrogen calculation will be taken into account.

  • Page 28: Sports Mode

    5. Sports Mode 5.1 Run Mode 5.1 Run Mode Path：Menu > Sports > Run Road Running Start your running training. View Page： Page 1>Page 2>Page 3>Page 4 Race The race mode can be selected from "Full Marathon", "Half Marathon", "10km" and "Custom Mileage".
  • Page 29 IT Setting Page： Warm-up > Countdown > Sprint > Rest > Cool-down IT (Interval Training) 1. CR-5 provides interval training (IT) mode to help you train alternating short, high intensity bursts of activity with periods of rest and recovery in between.
  • Page 30 Calorie Run Use "Calorie Run" to help you complete your training with a calorie burn goal. Please follow the watch instructions to set the expected calorie burn. Pace Run Use the "Pace Run" to help you complete your running training at a fixed pace. Please follow the watch instructions to set the expected pace to maintain.

  • Page 31: Hiking Mode

    Use the app to import hiking routes into the navigation. The instructions for using APP: 1. Start the Marathon World APP and enter [More] > [CR-5]. 2. Select your computer watch for Bluetooth connection 3. Enter the hiking route page to select the route you need and click to download to your watch, wait for the synchronization to be completed.

  • Page 32: Bike Mode

    5.3 Bike Mode 5.3 Bike Mode Path：Menu > Sports > Bike View Page： Page 1>Page 2>Page 3>Page 4 Training 1.Start your biking training. Race 1. The race mode can set the mileage and start a race. 2. The race mode will help you calculate your estimated finish time based on your cadence.
  • Page 33 Calorie mode Use "Calorie mode" to help you complete your training with a calorie burn goal. Please follow the watch instructions to set the expected calorie burn. View Page： Page 1>Page 2>Page 3>Page 4 Indoor If you want to do indoor training, you can choose "Indoor"...

  • Page 34: Swim Mode

    5.4 Swim Mode 5.4 Swim Mode Path：Menu > Sports > Swim Pool 50m If you are in an indoor 50m pool, you can use "Pool 50m" to record your swim training. View Page： Page 1>Page 2>Page 3>Page 4 Pool 25m If you are in an indoor 25m pool, you can use "Pool 25m"...

  • Page 35: Triathlon Mode

    5.5 Triathlon Mode 5.5 Triathlon Mode Path：Menu > Sports > Triathlon View Page： Swim > Rest(T1) > Bike > Rest(T2) > Run Triathlon / Duathlon / Set Item 1. Select “Triathlon” or “Duathlon” to start training or select "Set item" to set two or three combinations and order.

  • Page 36: Work Out Mode

    5.6 Work Out Mode 5.6 Work Out Mode Path：Menu > Sports > Work out Timer Mode 1. You can use the "Timer" mode without setting it to start work-out. 2. When finishing a set of actions, press the MODE button to enter the rest period, then press the MODE button to enter the next set.

  • Page 37: Settings

    6. Settings 6.1 Diving Settings 6.1 Diving Settings Path：Menu > Settings > Set dive For Scuba Diving related settings, please refer to 4.1.2 Scuba Mode Scuba Settings. For Freediving related settings, please refer to 4.2.2 Freediving Freediving Mode Settings. Choose Scuba, Freediving or Gauge mode as your default automatic dive mode.
  • Page 38 3. If you are the person who is receiving this dive computer after using the “Tissue Clear” function, please make sure you DO NOT have diving activities within the past 72 hours for maximum safety control. 4. Do not use this function if you are not sure with related results. You are responsible for your own safety.

  • Page 39: Sports Settings

    6.2 Sports Settings 6.2 Sports Settings Path：Menu > Settings > Set sports 1. Use this function to automatically pause the timer function when you stop moving. Auto pause 2. When you stop, the data will not be recorded, so that the speed (pace) and other information can be calculated more accurately.
  • Page 40 1. Heart rate alarm: you can set a heart rate alarm according to your heart rate data which is too high or too low. 2. Pace alarm: you can set a pace alarm according to Alarm whether the pace is too fast or too slow. 3.
  • Page 41 Set page Same as the running settings instructions. 1. Heart rate alarm: you can set a heart rate alarm according to your heart rate data which is too high or too Swim low. Settings Alarm 2. Distance alarm: Automatic alarm according to your set distance.

  • Page 42: System Settings

    6.3 System Settings 6.3 System Settings Path：Menu > Settings > Set system "GNSS Global Navigation Satellite System" is the collective name of the U.S. Global Positioning System (GPS), Russia's GLONASS, China's BeiDou satellite navigation system (BDS) and the European Union's Galileo. This product supports the three positioning systems of GPS (USA), GLONASS (Russia) and Galileo (EU).
  • Page 43 You can set the time related settings here, press the MODE button to enter the sub options for each setting. Set time zone. Please note: This product is not an automatic time zone setting, please be sure to adjust the time zone according to the conditions of use.

  • Page 44: User Settings

    1. Please follow the instructions given by the watch to perform the test. 2.The measurement of heart rate may be inaccurate Resting HR depending on the color of your skin and subcutaneous tissue or the way you wear your watch...etc. The measurement results are for reference only.

  • Page 45: Delete

    6.5 Delete 6.5 Delete Path：Menu > Settings > Delete 1. Performing this action will clear all records in this product. There is no way to retrieve them. 2. Clear logs won’t affect any existing settings and residual nitrogen Delete calculation of previous dives existing in this product and will still be calculated.

  • Page 46: Logs

    Use the app to import hiking routes into the navigation. The instructions for using APP: 1. Start the Marathon World APP and enter [More] > [CR-5]. 2. Select your computer watch for Bluetooth connection 3. Enter the hiking route page to select the route you need and click to download to your watch, wait for the synchronization to be completed.

  • Page 47: Timer

    9. Timer 9. Timer Path：Menu > Timer 1. After the time setting is completed, press "Start", the set time will start timing. Countdown 2. If necessary, please turn on "Repeat", the timer will restart automatically after it expires. 1. After entering the stopwatch, press the MODE button to start. 2.

  • Page 48: Synchronization And App

    It is recommended that you connect to the following APP before using this product or once a week. The APP will quickly and automatically update the built-in ephemeris information of your CR-5 within seconds, and dramatically increase the speed and accuracy of GPS positioning.

  • Page 49: Disclaimer

    12. Disclaimer 12.1 User's Responsibility This device is intended for recreational use only. CREST CR-5 is not applicable for measurement data or use specifications that require compliance with occupational or industrial requirements. 12.2 About Flying After Diving The no-fly time is displayed in watch mode, with an icon of the aircraft at the bottom of the screen.

  • Page 50: Limited Liability Warranty

    13. Limited Liability Warranty CREST Dive Computer is covered by CREST’s limited warranty. ● CREST provides a limited product warranty to the purchaser of a dive computer watch and dive computer watch accessories (hereinafter referred to as the Product). ● During the period of the Product Warranty, improvements will be made at CREST or CREST authorized distributor or dealer location for possible defects in the hardware of the Product in accordance with the terms of this Warranty.
  • Page 51 4. damage to the internal settings, data content or other data of the Dive Computer Meter. Whether it is the user’s manual that comes with the product or obtained by download, or software supplied by a third party, or even the user’s own data; problems arising from installation, assembly, or transportation.

  • Page 52: Contact Crest

    15. Copyright Statement The contents of this document are the property of CREST, including the words and graphics CR-5, which are registered or unregistered trademarks of the Company. Although every effort has been made to ensure the completeness and correctness of the contents of this document, we cannot guarantee 100% accuracy.

  • Page 53: Appendix

    16. Appendix 16.1 Product Specifications Diameter of the watch face: 51.7 mm / 2.03 inches Size & Thickness: 14.77 mm / 0.58 inches Weight Weight: 65 g Temperature-compensated pressure sensor: Calibration based on seawater, within 3% reduction in freshwater reading (in accordance with EN 13319) Maximum operating depth: 100 m / 328 ft (in accordance with EN Depth Meter...

  • Page 54: Diving Terms And Explanations

    16.2 Diving Terms and Explanations Terms Explanations Ascent Rate The rate at which a diver rises through the water. High partial pressure oxygen is toxic to the human body, and the toxicity from over-breathing can lead to various neurotoxic CNS toxicity symptoms.

  • Page 55: Ncc Warning

    16.3 NCC Warning Regulations for low-power radioactive motors The company, firm or user shall not change the frequency, increase the power or change the features and functions of the original design of the certified low power RF equipment without approval. The use of low-power RF equipment shall not affect flight safety or interfere with legal communications;...

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