CREST CR-5 English User Guide Applicable SW version: CR5040 Version number: V 1.
CR-5 English User Guide Contents 1.Diving Safety Guide 4 2.Getting Started Guide 2.1 Maintenance 2.2 Charging 2.3 Wearing CR-5 2.4 Forced Shutdown 2.5 Buttons 7 7 8 8 8 9 3.Watch Mode 3.1 Screen and Function 3.2 History Record 10 10 11 4. Diving Mode 4.1 Scuba Mode 4.1.1 Scuba Mode Screen and Function 4.1.2 Scuba Mode Settings 4.2 Freediving Mode (Free Mode) 4.2.1 Freediving Mode Screen and Function 4.2.2 Freediving Mode Settings 4.3 Gauge Mode 4.3.1 Gauge Mode Screen and Function 4.4 Plan Mode 4.4.
6.6 Reset 6.7 About 45 45 7. Logs 46 8. Navigation 46 9. Timer 47 10. Heart Rate Watch 47 11. Synchronization and APP 48 12. Disclaimer 12.1 User's Responsibility 12.2 About Flying After Diving 49 49 49 13. Limited Liability Warranty 50 14. Contact CREST 52 15. Copyright Statement 52 16. Appendix 16.1 Product Specifications 16.2 Diving Terms and Explanations 16.3 NCC Warning 53 53 54 16.
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. Remember, your safety is your responsibility, so please pay attention to all details and do not ignore any signs of discomfort! 1.
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.
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 danger. 1.
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. If the battery capacity and voltage are not used for a long time, it may cause irreversible damage to the battery. 2.
2.2 Charging 1. 2. 3. 4. 5. Please install the charging clip and charging cable to a USB output power source, such as a mobile phone charger, mobile power, etc. Please make sure that your power output device is a safe and qualified product. Do not use a product from an unknown source or without safety certification regulations. After confirming that the charging clip is connected to the power source, open the charging clip and confirm the direction of the charging point.
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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. Icon： Digital time screen (start screen) 1.Pedometer： Shows the current step count. 2.Surface interval： Shows the current surface interval time.
Please refer to historical records and version information for exact no-fly times. Pointer time screen (start screen)： After Scuba and Gauge Mode 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. Meanwhile, you will not be able to use the following functions: Scuba Mode, Freediving Mode, Plan Mode. 3.2 History Record 3.
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 Scuba Mode - Surface Preview Icon： OC：abbreviation of Scuba mode, open-circuit Scuba. 237°：the current pointing direction.
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. This feature is on by default and can be turned off. (Path: Settings＞Set dive＞Twist to next) Surface preview information: SI/MOD, bearing, tissue concentration.
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 according to Log Stop settings. Scuba Mode – Safety stop (When the NDL has not been exceeded) TIME: Dive time.
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. Divers should ascend slowly and end your dive.
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. Scuba Mode – Underwater When exceeding the NDL, and Decompression stop at CEILING has ended.
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 – Scuba End Scuba 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.
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.
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. After the depth blinks, press the up/down button to set value, then press the mode button to confirm the set value and stop blinking to complete the setting.
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.
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. Freediving Mode - Maximum Rate Ascent：MAX Ascent Speed Descent：MAX Descent Speed Depth：MAX Depth Time：MAX Descent time Freediving Mode - Average Rate (Average Rate calculations are based on total freediving history executed with this dive computer within 11 hours.
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 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; if you select off, the depth cannot be set.
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 Gauge Mode - Surface Preview Press DOWN Button to calculate Average Depth automatically.
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. Gauge Mode - Surface Preview, Underwater Twist-to-next information This feature is on by default and can be turned off. (Path: Settings＞Set dive＞Twist to next) Twist-to-next information: dive time/temperature, position. Gauge Mode - Underwater Description： 018.
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. Gauge Mode – No Diving Note: Scuba Mode, Freediving Mode and Plan Mode will remain locked during NO DIVE time.
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). Plan Mode DEPTH (MOD)：Maximum Operating Depth suggestions. The dive plan you can refer to will not exceed the following limits: Recommended maximum depth for recreational diving: (40 m / 131 ft).
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. 3. Please make sure you receive proper training and have adequate dive equipment with you. You will need to execute dive plans strictly and understand the related risks using Plan 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". 1.When you are set to run a race, you can choose any race mode to record your race according to your mileage. 2. This mode will help you calculate your estimated finish time based on your pace.
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. You can set the warm-up distance, sprint distance, rest time, and repetitions to meet your training needs. 2. Please follow the watch instructions to set the data. 3.
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. Indoor Use "Indoor" to start recording exercise indoors.
5.2 Hiking Mode 5.2 Hiking Mode Path：Menu > Sports > Hiking View Page： Page 1>Page 2>Page 3>Page 4 Hiking Use hiking mode for hiking or walking exercise. During exercise, you can view the trail map, compass, altitude table and other information on the page. Navigation (Use Marathon World App to import hiking trails) ＊This function will be available soon* Description： Use the app to import hiking routes into the navigation. The instructions for using APP: 1.
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. Distance mode Use "Distance Mode" to help you complete your biking training with a distance goal. Please follow the watch instructions to set the expected number of mileage.
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" mode. It is recommended to pair with a speed sensor or cadence sensor to get a more accurate calculation. In this mode, you can also check time, distance, speed, heart rate, cadence and other data.
5.4 Swim Mode 5.4 Swim Mode Path：Menu > Sports > Swim Pool 50m View Page： Page 1>Page 2>Page 3>Page 4 If you are in an indoor 50m pool, you can use "Pool 50m" to record your swim training. Pool 25m If you are in an indoor 25m pool, you can use "Pool 25m" to record your swim training. Set Pool Use "Set pool" to set your pool length to record your swim training. Open Water If you are training for open water swimming, you can use "Open water" to record your swimming trace.
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. The default triathlon training order is: swimming - bicycle - running The default duathlon training order is: running - bicycle - running 2. If the training combination includes swimming items, choosing the swimming style is needed. 3.
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. 3. Press the RETURN button to end the exercise and save. Action Mode 1. You can set the number of sets for each action, the rest time in between each set, and will automatically enter the next stage when the time is up. 2.
6. Settings 6.1 Diving Settings 6.1 Diving Settings Path：Menu > Settings > Set dive Scuba Freediving For Scuba Diving related settings, please refer to 4.1.2 Scuba Mode Settings. For Freediving related settings, please refer to 4.2.2 Freediving Mode Settings. Choose Scuba, Freediving or Gauge mode as your default automatic dive mode.
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.
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. Auto lap Run Settings 1. Use this function to automatically count the laps at a specific distance, time or location. This allows you to analyze your performance in each zone with the same distance or time. 2.
Alarm 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 whether the pace is too fast or too slow. 3. Distance alarm: Automatic alarm according to your set distance. 4. Time alarm: Automatic alarm according to your set time. Auto backlight This feature detects when the watch is raised and automatically illuminates the backlight to help you exercise more conveniently at night.
Set page Swim Settings Alarm 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 low. 2. Distance alarm: Automatic alarm according to your set distance. 3. Time alarm: Automatic alarm according to your set time. Auto pause Same as the running settings instructions. Hiking Settings Auto lap Same as the running settings instructions. Set page Same as the running settings instructions.
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). GNSS The default value of this product is to use the U.S. GPS fixed on and as the main positioning.
You can set the time related settings here, press the MODE button to enter the sub options for each setting. Set time zone. UTC Format Time 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. Set the date format. Daylight Saving Time: DST If this setting is required, you must select your local time zone and use daylight saving time. The system will display the corrected time.
Resting HR 1. Please follow the instructions given by the watch to perform the test. 2.The measurement of heart rate may be inaccurate 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. MHR 1. Set your maximum heart rate. Choose "Auto" or "User definition" as the setting method. 2. "Auto" is calculated by 220-age.
6.5 Delete 6.5 Delete Path：Menu > Settings > Delete 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 calculation of previous dives existing in this product and will still be calculated. 3. Downloading your dive logs using our application service before clearing all dive logs is recommended. 6.6 Reset 6.6 Reset Path：Menu > Settings > Reset Reset 1.
7. Logs 7. Logs Path：Menu > Logs View all detailed dive and sport records. 1. Press the UP/DOWN button to select a record and press the MODE button to enter the record. 2. Use the UP/DOWN button again to switch pages and view detailed information. Logs Please note: 1.Sports log: If you need to delete a single sports log, please go to "Any Page" in the details of the log and press the MODE button to select YES or NO to confirm whether to delete this single log. 2.
9. Timer 9. Timer Path：Menu > Timer Countdown 1. After the time setting is completed, press "Start", the set time will start timing. 2. If necessary, please turn on "Repeat", the timer will restart automatically after it expires. Stopwatch 1. After entering the stopwatch, press the MODE button to start. 2. When the stopwatch starts, press the RETURN button to count the laps. Press the MODE button to stop, then you can choose to continue or "Down" to finish, and view the lap time as well. 2.
11. Synchronization and APP 11. 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. Please note: If you have not used the exclusive app connection for a long time, the GPS positioning searching speed will be slowed down, and the system will prompt you to connect.
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. The no-fly time is shown in the history and version information.
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.
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. 5.
information. If the consumer wishes to send the product by post for repair, please send the product together with the above information to the local CREST authorized distributor at your own cost. In any circumstances, all warranty claims must be made prior to the expiration of the warranty period in order to claim warranty rights, and CREST cannot guarantee that the product will operate uninterrupted or error-free, or that the product will be compatible with hardware or software supplied by other vendors.
16. Appendix 16.1 Product Specifications Size & Weight Diameter of the watch face: 51.7 mm / 2.03 inches Thickness: 14.77 mm / 0.
16.2 Diving Terms and Explanations Terms Explanations Ascent Rate The rate at which a diver rises through the water. CNS toxicity High partial pressure oxygen is toxic to the human body, and the toxicity from over-breathing can lead to various neurotoxic symptoms. The most serious of these is a convulsive neurotoxic reaction similar to epilepsy, which can lead to uncontrollable convulsions that affect the diver's breathing and result in drowning. CNS The abbreviation for the central nervous system.
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; if interference is found, it shall be immediately discontinued and improved until there is no interference before continued use.
this device could void the user's authority to operate the equipment. RF Exposure warning The equipment complies with FCC RF exposure limits set forth for an uncontrolled environment. The equipment must not be co-located or operating in conjunction with any other antenna or transmitter. This device complies with Part 15 of the FCC Rules.
