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heinrichs weikamp OSTC cR User Manual

Open source dive computer
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Summary of Contents for heinrichs weikamp OSTC cR

  • Page 1 User manual Open Source Dive Computer...
  • Page 2 Thank you for choosing a heinrichs The OSTC cR has a big, high-contrast weikamp dive computer! display with a very wide viewing angle. The robust housing is equipped with The OSTC cR was specially developed for two piezo buttons that can be operated rebreather divers.
  • Page 3 For any questions relating to your OSTC going on. Use the firmware updates to cR, please contact us via… keep your OSTC cR always up to date. Get it for free at • internet forum: forum.heinrichsweikamp.com...

  • Page 4: Table Of Contents

    Requirements ........10 Surface Mode ..........29 Before every dive .........11 Display in surface mode ....29 While diving ..........14 Menu functions ........31 Safe use of the OSTC cR .....16 Logbook ..........33 Environmental conditions ....17 OC Gas setup ........36 CCR Setup ..........42 Simulator ..........52 Deco mode ..........57...
  • Page 5 Dive mode ...........71 Readout the dive computer ....85 Displays in dive mode ......71 USB-Connection ........85 Menu functions ........76 Software for the OSTC cR ....87 Gaslist ..........77 Updating the firmware .....88 Setpoint change........79 Technical data ..........90 Bailout ..........79 Disposal ..........91 Reset Avr ..........80 Maintenance ..........81...

  • Page 6: Common Advices

    Common advices Technical status This manual corresponds to the technical How to update the firmware, please read status of OSTC cR and its firmware as of page 88. December 2014. OSTC firmware documentation are subject to technical Standard settings changes without notice.

  • Page 7: About This Manual

    About this manual Note Special markings indicates additional information for ! Warning advanced OSTC cR user. indicates a situation that carries a significant risk or injury. Terms of use Caution Copyright © heinrichs weikamp indicates a situation that carries a risk of Copying or reusing this manual or parts damage to the device.

  • Page 8: Functions Overview

    Functions overview Your dive computer OSTC cR assists you Oxygen monitoring in CCR diving (direct with the following functions: analog or using the optional hwHUD S8) Additional informations (e.g. tilt-com- pensated compass, average depth, Display stopwatch, ppO2, CNS) Diving depth and duration according...
  • Page 9 CCR mode, calculate a decoplan in the simulator Record Time, duration, depth profile, temperature, reference pressure and time of desaturation...

  • Page 10: Safety Advices

    The most important factor for safe diving understand the settings and displayed is a competent and well trained diver. information of OSTC cR. If necessary, you must be able to finish your dive safely without a dive computer. This dive computer is intended for Don’t adjust decompression parameters...

  • Page 11: Before Every Dive

    It has been diving. tested and allows a proper and reliable performance of OSTC cR. Make sure that your OSTC cR is ready for use and correctly configured. Configured correctly? Always confirm the following questions Check the settings of your OSTC cR. If...
  • Page 12 Safely attached? integrated lithium ion battery offers 60 hours of diving in eco mode. It takes five Make sure that your OSTC cR can be hours to recharge it completely. fastened safely using either the bungees or a suitable alternative.
  • Page 13 Display messages? Check the screen of OSTC cR. Do not dive if your dive computer displays a warning. Check the cause of the warning.

  • Page 14: While Diving

    • configured correctly system to measure duration and depth • used on every dive of your dive independently from OSTC cR. • only used during your own dives (and not shared with other divers). Take the OTSC cR with you on every...
  • Page 15 Take a sufficiently long surface break before diving again. Saturation data is lost when updating The OSTC cR doesn’t indicate how long to the OSTC cR firmware or in the unlikely wait before the next dive. Please follow event of a failure. In these cases, do not...

  • Page 16: Safe Use Of The Ostc Cr

    Safe use of the OSTC cR modify hardware. Keep your OSTC cR out of children´s Modifications to the hardware of OSTC reach. Small parts such as the cap of the cR can damage its proper function and S8-connector may represent a choking can damage the watertightness of its hazard.

  • Page 17: Environmental Conditions

    Environmental conditions Store the OSTC cR in a cool, dry place. Permissible temperature range for use and storage: between -5 °C and 40 °C. Note Decompression calculations and depth display are always based on the actual surface pressure. So if you are diving in mountain lakes, no further settings are needed.

  • Page 18: Before First Use

    OSTC cR ready for use with a high quality lithium battery (Saft LS14500). Anyway we recommand to load the OSTC cR completely before you use it the first time. Before diving, you need to adjust some settings as described in this manual.

  • Page 19: Handling

    Handling Operate the OSTC cR with the two piezo buttons Set/MENU and ENTER on the left and right side of the housing. The force required to push the buttons is independent to ambient pressure. You can’t push and hold the button in order to change a data.
  • Page 20 back to the top with the next push. To confirm push ENTER. In some menus you will find the entry more. Select this entry to access the next menu page with more menu items. To change the setting of a menu item, push ENTER repeatedly until the required value is displayed.

  • Page 21: Modes Of Operation

    Surface mode In surface mode you can adjust the settings for the next dive, adjust the To wake up the OSTC cR, push one of the base settings of the OSTC cR and read buttons SET/MENU or ENTER. recorded dive data.
  • Page 22 Dive mode In dive mode the display shows current diving depth, dive time, maximum The OSTC cR automatically switches into depth, the currently selected gas (in CCR dive mode when it is at least 1,6 meter diving the setpoint or the values of the below the surface for five seconds.
  • Page 23 (look for page 52). Sleep mode When the OSTC cR isn’t operated at the surface, it switches into sleep mode after two minutes to save energy. In sleep mode the display is turned off.

  • Page 24: Modes Of Diving

    58). You can switch from ZH-L16 to ZH-L16+GF under Decotype. OC (open circuit): Use this dive setting With Deco parameters you can adjust with regular dive equipment (open the saturation factors and gradient circuit). This setting is pre-set on your factors. OSTC cR.
  • Page 25 15 minutes delay and above a In apnea mode the OSTC cR serves as a depth of 1 meter. depth gauge. Additionally displayed are ambient temperature and elapsed time since starting the dive.
  • Page 26 Gauge: With this dive setting, OSTC cR serves as a depth gauge. Decompression and saturation calculation are switched off.

  • Page 27: Compass Callibration

    Compass calibration OSTC tilt-compensated electronic compass. Like all other electronic compasses must calibrated before use. The calibration compensates aberration that can be caused by the battery.
  • Page 28 After starting the calibration menu, move the dive computer slowly around each axis. Do this a number of times within 60 seconds. After this while the calibration ends automatically. During the calibration routine the OSTC cR shows X-, Y- and Z-axis.

  • Page 29: Surface Mode

    Surface Mode Display in surface mode Permanent items In the surface mode the OSTC CR shows following items permanently: • ambient pressure, clock, date • temperature • battery level • dive mode: Open circuit (OC), Clodes Circuit (CC), Gauge or Apnea •...
  • Page 30 Selectable items tissue saturation in the desaturation diagram. The 16 types of tissue In the middle part of the display you according to the Bühlman model are can see extra information in the custom arranged horizontally. The fastest view. You can switch them with the right tissue is on top, the slowest is below.

  • Page 31: Menu Functions

    Logbook: Recorded data from recent settings to prepare the next dive, adjust dives the base settings of OSTC cR and review your dives in the logbook. OC Gas setup: Set up your gas mix for scubadiving or your bailout gases for To open the menu in surface mode push CCR diving.
  • Page 32 Deco mode: Settings for deco calculation and dive modes (open circuit, closed circuit, gauge or apnea) of the OSTC cR. Settings: Settings for time, language, display brightness, compass Exit: Exit the main menu...

  • Page 33: Logbook

    Logbook The OSTC cR records data during every dive. It can be retrieved from the logbook. The OSTC cR stores data of up to 255 dives with a total duration of 500 to 1000 hours. The exact number of records depends on the overall size of data.
  • Page 34 ENTER. The dive profile and details If you want to secure your recorded dive page shows up. The details page also data, you can connect the OSTC cR via shows position index, date, maximum the S8-connector to a personal computer diving depth, duration, minimum and and readout the data (page 85).
  • Page 35 Note Via Settings > Display Settings > Logbook Offset you can put in your own number of dives. It will be shown instead of the numbers of dives which are stored in the dive computer (page 66).

  • Page 36: Oc Gas Setup

    OC Gas setup Use OC gas setup to configure presets for up to five gases for scubadiving as well as bailout gases for rebreather diving . You can switch between these presets when you change your gases while diving. The presets are marked like this: Air for compressed air (21% oxygen) and Nx for Nitrox (e.g.
  • Page 37 Choose a gas in the menu OC gas setup Type and push ENTER to see details or to change values. Each mix can be set to the following type: First: The first gas which is used when the dive starts. Only one gas can be marked as first.
  • Page 38 All gases (even disabled ones) can be chosen underwater. Disabled: Gas is disabled and is not taken into account for the decompression The OSTC cR always computes the tissue prognosis. load and the decompression scheme using the selected gas. It takes all deco Disabled gases are shown in blue letters.
  • Page 39 Setup mix Change depth For every gas you can set the percentage To set the operation depth for your deco of oxygen and helium. gases, select Depth+ or Depth-. The chosen operation depth will be shown Select O2+ or O2- to change the in the first line of the display.
  • Page 40 Examples Dive with two decompression gases and one travel/bottom gas: Additionally to Dive with only one gas: Configure one the first gas and the two decompression gas, for example gas 1 as first. Set up gases, configure a fourth gas as travel. the mix using the submenu “setup mix”.
  • Page 41 Note In surface mode the actual gas list is shown via the custom view (right button), also in dive mode. You can easily see which gas fits to the current depth (dynamic gaslist). Gases with a too high or too low ppO2 are marked red. To change the gas while diving open the menu (left button SET/MENU) and go to gaslist.

  • Page 42: Ccr Setup

    CCR Setup In CCR Setup you can configure all settings you need for diving with a closed circuit rebreather. For calculation you can use fixed setpoint or sensor readings.
  • Page 43 CCR Mode Fixed Sp: The OSTC cR will calculate the decompression using up to five fixed setpoints. Sensor: The OSTC cR monitors up to three O2 sensors and uses the sensor readings for decompression calculation. Connect the OSTC cR to your rebreather with the S8-connector (direct analog or digitally with the hwHUD S8).
  • Page 44 CCR sensor: The CCR sensor shows ppO2 readings of each sensor attached with S8-connector. Additionally you can read mV voltages out of each sensor and see the battery level of the hwHUD S8. In case of a sensor failure, you can activate the fallback (Fallback: Yes).
  • Page 45 Diluent Setup In the diluent setup the five diluents you use only one diluent, it is marked gases are named as gas 6 to gas 10. The automatically as first. starting diluent (first) is marked with an asterisk *. Normal: Additional diluents which can be chosen underwater.
  • Page 46 Each gas change (better diluent). Close to the setpoint can be set between 0,5 bar configured change depth the OSTC cR and 1,6 bar, in 0,1 bar increments. You shows the better gas. can also configure the change depth for each setpoint.
  • Page 47 Note You can configure the bailout gases in the OC Gas Setup. The gases you configure for scubadiving can be used as bailout when you have to change from closed to open circuit.
  • Page 48 Confirm with calibrate. Check in surface mode if the displayed ppO2 value is plausible. In dive mode OSTC cR displays the three sensor values in the custom view (right button ENTER). If a ppO2 value is marked red, it will not be used for decompression...
  • Page 49 S8. The S8-connector is triple O-Ring sealed. Because of its construction it is very robust. The OSTC cR can be connected to standard oxygen sensors with a common ground. The minimum voltage for calibration is 7 mV in air (21% O2)
  • Page 50 The maximum sensor voltage is 165mV per sensor. The S8-connector has the following pin configuration: The products of heinrichs weikamp products use a 100kOhms load resistor • Pin G: Minus, Sensor 1,2, and 3 for analog O2 cell inputs • Pin 1: Plus, Sensor 1 •...
  • Page 51 Signal Colors of the heinrichs Pin-Nr. S8-Bulkhead weikamp S8 cable Sensor 1+ black „1“ Sensor 2+ brown „2“ Sensor 3+ white „3“ GND/Common blue „G“...

  • Page 52: Simulator

    Simulator Use the simulator to simulate the dive mode of the OSTC cR or to calculate the decoplan for your next dive. Using the simulator you can get familiar with your dive computer even before the first dive.
  • Page 53 Calculate decoplan As a planning tool, the OSTC cR can To start calculation, select calculate deco calculate decompression stops and push ENTER. advance to planned dive. Hereby all settings of the OSTC cR and the tissue Wait while the calculation is going on.
  • Page 54 stops, more stops can be shown with the ENTER button. Interval: Increase interval in 10 minutes steps up to 240 minutes. Bottom time: Can be increased in steps of 2 minutes up to a maximum of 59 minutes. Maximum depth: Can be increased in steps of 3 meters up to a maximum of 120 meters.
  • Page 55 SET/MENU and confirm with ENTER. logbook. Simulated dives don’t affect any settings of the OSTC cR. Of course Sim: -1m: descend 1 meter there will be no influence on the tissue loads from real dives.
  • Page 56 Note The OSTC cR stays 90 minutes in the simulation mode until it switches to sleep mode. Stop the dive mode manually to save energy.

  • Page 57: Deco Mode

    Deco mode In deco mode you can configure the dive mode of your OSTC cR (OC, CC, gauge or apnea) and select important settings for the decompression calculation. Dive mode: There are several dive modes for open circuit (OC), closed circuit rebreather diving (CCR), gauge mode or apnea diving.
  • Page 58 GF high does it with the factors. The OSTC cR is pre-set to a value highest decostop. OSTC cR is set up to a for saturation of 110 percent and a value GF low of 30 percent and a GF high of 85 for desaturation of 90 percent.
  • Page 59 “Future TTS @5” shows your max between 1,20 and 1,60 bar. TTS in five minutes. Safety stop: The safety stop can be switched on or off. After a dive within the no deco limit (NDL) the OSTC cR shows...
  • Page 60 Last deco: Setting for depth of last percent (10 to 100%, default 30%) decompression stop. Choose here if the OSTC cR shall calculate its last stop at 3, GF high: Upper value of the Gf-pair in 4, 5 or 6 meter (default: 3m). If you have...
  • Page 61 Alternative GF: Settings for an alternative GF-pair which can be switched while diving (toggle GF). aGF selectable: Yes: the GF-pair can be toggled underwater. No: the GF-pair cannot be toggled. aGF low: alternative value for the GF low in percent (60 to 100%, default 60%) aGF high: alternative value for the GF high in percent (80 to 120%, default 85%)
  • Page 62 ! Warning Only change values for decompression calculation if you are aware of their meanings. The pre-settings of the deco parameters are well established and proven. Changes have direct influence decompression calculation and modify the conservatism of the Bühlmann model. Combinations for example a last stop at 6 meters and a low GF high (70%) need a matching diveplan and deco gases.

  • Page 63: Settings

    Settings In this menu you can set up basic configurations, calibrate your compass and reset settings. Information Shows some device specific information like serial number, number of total dives and the actual used firmware.
  • Page 64 YYMMDD: year, month, day the OSTC cR. You can set up time and DDMMYY: day, month, year date with the ENTER button.
  • Page 65 With rotating the cases the default Eco is recommended. If screen, you can put the sensor connector the OSTC cR is used often in low depths cable from the left or right side to your and bright sunlight, a higher setting is dive computer.
  • Page 66 Language Compass calibration: In this menu you can calibrate your digital compass. How The OSTC cR can be se tup in four to do exactly, look for page 27. languages: English, German, French and Italian. Choose your language with the...
  • Page 67 Note Units: Display of depth and temperature in metric (m/°C) or imperial (ft/°F) units. Decompression information is based on Sampling rate: the logbook sampling absolute pressure and not on relative rate is adjustable from 2 to 10 seconds. pressure. Therefore salinity does not effect this calculation.
  • Page 68 Reset menu In the reset menu you can put the Reset deco: To delete the current settings of the OSTC cR to its default decompression data choose reset values and start the dive computer from decodata push ENTER. You`ll new. You can cancel your decompression be prompted to confirm the action.
  • Page 69 Use reboot and reset decodata only, if Reset all really resets all settings in you don’t plan a repetitive dive within the OSTC cR to their factory defaults, it the next 48 hours. also occurs to the compass calibration and the personal text. Once confirmed Reset all: Resets all settings (not time this can’t be undone! Saturation and...
  • Page 70 Reset logbook: Deletes all data in the logbook. The counter starts again with zero. If you want your personal number of dives to be shown in the logbook, you have to set up (again) the number via logbook offset (page 66).

  • Page 71: Dive Mode

    Permanently shown information • water temperature in °C or °F • Future TTS (@+xx): shows your deco in In dive mode the OSTC cR shows the xx minutes at the same depth. Future following items permanently on the TTS is only displayed, when the OSTC cR...
  • Page 72 • time, MOD/END graphical Selectable information in the center row indication of tissue saturation of the screen • current gradient factors or saturation factors and the alternative GF-pair Selectabel items can be monitored in • Display of up to three sensor readings the center of the display.
  • Page 74 Warnings: • too high gradient factors and missed decocstop (the missed decostop is Warnings appear permanently on the marked red) display. Up to two warnings are shown • too fast ascent simultaneously. If there are more than • when the decompression calculation is two warnings, the warning display based on the alternative GF-pair toggles every two seconds.

  • Page 76: Menu Functions

    Menu functions In dive mode (OC) you can select your five seconds or the OSTC cR returns to preset gases (gaslist) und reset the normal display. calculation of your average depth (reset avr./stopwatch). During CCR diving you Note can choose setpoints and bailout gases and switch to decompression calculation via O2-sensors.

  • Page 77: Gaslist

    Gaslist Note In the menu gaslist you can make your gas changes and select the actual gas. You can choose the gas mixes that you Gases in red have too high or low ppO2 prepared in gas setup in the surface to be used in the current depth (they can mode.
  • Page 78 (e.g. Nx50?). So you see at once which gas you shall use. Just confirm with ENTER.

  • Page 79: Setpoint Change

    Setpoint change Bailout While diving in CCR mode you can If you have to switch from closed circuit choose between the five setpoints that diving to open circuit diving, you can have been configured in surface mode. select your bailout gases in the menu Choose setpoint in the menu (SET/ (SET/MENU).

  • Page 80: Reset Avr

    Reset Avr Restarts the stopwatch and calculates the average depth since the start of the the average depth from new. stopwatch (stopped avr). In dive mode you can select the average depth and stopwatch with the right button. Total avr indicates the average depth since the start of the dive.

  • Page 81: Maintenance

    Housing Wash your OSTC cR after every dive with fresh water, especially after diving in seawater. If the housing is very dirty, put your OSTC cR over night in fresh water. Don’t use any cleaning agents or solvents. ! Warning...

  • Page 82: Bungee

    Bungee The OSTC cR is delivered with bungees. The bungee wristband can be set to your arm diameter individually. To tighten the bungee, make a reef-knot above the circular cavity (tighten knot very strong). Cut remaining bungee after about 1cm and use a lighter to melt the small remains of nylon.
  • Page 83 USB wall-charger. In desaturation time no-fly-time eco mode the OSTC cR offers up to 60 are still remaining. But please check operation hours. It takes five hours to time and date after restarting the dive recharge it completely.

  • Page 84: Spare Parts

    Spare parts Bungees and spare parts are available in the online shop of heinrichs weikamp (shop.heinrichsweikamp.com) or at your dealer.

  • Page 85: Readout The Dive Computer

    Readout the dive computer USB-Connection Warning You can connect your OSTC cR easily Diving without the S8-cap can damage via USB to your personal computer or the OSTC cR. notebook. So you can upload software and download your logbook. With the...
  • Page 86 Note Connect the USB interface of OSTC cR When connecting our OSTC cR to a with your computer. It will be recognized computer the first time, you may need as new device. When Windows asks for to install a device driver. In most cases a driver medium, point to the directory the driver will install automatically.

  • Page 87: Software For The Ostc Cr

    OSTC supported many software applications for all common platforms. OSTC cR is a open source dive computer. The applications provide easy-to-operate For programmers, we have the OSTC cR functions for transferring recorded dive interface description available. data, and for configuring and remotely controlling your OSTC cR.

  • Page 88: Updating The Firmware

    - at least ones a improvement. To make the best of your year. Updates for the OSTC cR are free OSTC cR, use the latest stable firmware of charge, of course. On the homepage that is available at the heinrichs weikamp you can download the OSTC companion.

  • Page 90: Technical Data

    Technical data Display High resolution TFT monitor with 2,4“ (6,1 cm), field of view: 170°, Resolution: 320 x 240 pixel, 65 000 colours, status dis- play: 2 LEDs Connections S8-connector and USB Sensor Combined depth/temperature sensor 3D compass (fully tilt-compensated) Power supply Lithium battery Up to 60 hours operation, >1 year Standby...

  • Page 91: Disposal

    Disposal According European WEEE directive, electrical and electronic devices must not be disposed with consumer waste. It’s components must be recycled or disposed apart from each other. Otherwise contaminative and hazardous substances can pollute our environment. You as the consumer are committed by law to dispose electrical and electronic devices to the producer, the dealer or public collecting points at the end of the...

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