heinrichs weikamp OSTC3 Owner's Manual
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heinrichs weikamp OSTC3 Owner's Manual

Open source tauch computer
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Summary of Contents for heinrichs weikamp OSTC3

  • Page 1 Owner´s manual Open Source Tauch Computer...
  • Page 2 Thank you for choosing a heinrichs gradient factors, which has become the weikamp dive computer. standard for technical diving. In addition the OSTC3 offers an apnea and gauge Using open source software for full mode as well as a digital compass. transparency, combined with state-...
  • Page 3 OTSTC3 dive computer! For any questions relating to your OSTC3, please contact us via… You can use the OSTC3 intuitively. But to become familiar with its functions and • internet forum: to use it in the best way, we recommend 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 OSTC3 ......16 Logbook ..........33 Environmental conditions ....17 Gas setup ..........36 CCR Setup ..........42 Simulator ..........48 Deco mode ..........53...
  • Page 5 Dive mode ...........68 Readout the dive computer ....84 Displays in dive mode ......68 USB connection ........84 Menu functions ........73 Software for the OSTC3 .....86 Gaslist ..........76 Updating the firmware .....87 Setpoint change........76 Technical data ..........89 Bailout ..........77 Reset Avr ..........77 Disposal ............91...

  • Page 6: Common Advices

    Common advices Technical status This manual corresponds to the technical How to update the firmware, please read status of OSTC3 and its firmware as of page 88. November 2014. OSTC3, firmware Standard settings documentation are subject to technical changes without notice.

  • Page 7: About This Manual

    About this manual Note Special markings indicates additional information for ! Warning advanced OSTC3 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 OSTC3 assists you Oxygen surveillance in CCR diving (using with the following functions: the optional hw HUD or the ppO2 monitor) Display Additional informations (e.g. tilt-com- pensated compass, average depth, stopwatch, ppO2, CNS) Diving depth and duration according...
  • Page 9 Record Time, duration, depth profile, temperature, reference pressure and time of desaturation...

  • Page 10: Safety Advices

    Do not use this dive computer, if you is a competent and well trained diver. don’t know or understand the settings and displayed information of OSTC3. If necessary, you must be able to finish your dive safely without a dive computer.

  • Page 11: Before Every Dive

    Stable firmware? Set up a dive plan independently from Use only stable firmware provided OSTC3 and take it with you when diving. by heinrichs weikamp. It has been tested and allows a proper and reliable Make sure that your OSTC3 is ready for performance of OSTC3.
  • Page 12 AA battery (e.g. Safely attached? Duracell Ultra Power) about 20 hours, a lithium 1,5V AA battery (e.g. Energizer Make sure that your OSTC3 can be E2) about 30 hours. fastened safely using either the bungees or a suitable alternative.
  • Page 13 Display messages? Check the signals of OSTC3. Do not dive if your dive computer displays a warning. Check the cause of the warning.

  • Page 14: While Diving

    – don’t lend it to anyone. While diving, always carry a backup system to measure duration and depth A correct calculation of tissue saturation of your dive independently from OSTC3. requires that your OSTC3 is: • configured correctly • used on every dive •...
  • Page 15 Take a sufficiently long surface break before diving again. Saturation data is lost when updating The OSTC3 doesn’t indicate how long to the OSTC3 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 Ostc3

    Modifications to the hardware of OSTC3 when the battery has to be replaced. can damage its proper function and can damage the watertightness of its Keep your OSTC3 out of children´s reach. housing. Small parts such as the USB cap may represent a choking hazard.

  • Page 17: Environmental Conditions

    Environmental conditions Note Store the OSTC3 in a cool, dry place. Permissible temperature range for use Decompression calculations and depth and storage: between -5 °C and 40 °C. display are always based on the actual surface pressure. So if you are diving in...

  • Page 18: Before First Use

    Before first use heinrichs weikamp delivers the OSTC3 ready for use with a high quality lithium battery (Saft LS14500). If the OSTC3 has not been used for a long time (more than one year), it may be necessary to replace the battery first.

  • Page 19: Handling

    Handling Operate the OSTC3 with the two 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 push and hold the button in order to change a data.
  • Page 20 back to the top with the next push. To connector system (optional): confirm push ENTER. Connect up to three oxygen sensors using the hwHUD or the ppO2 monitor. In some menus you will find the entry The connection is based on a fibre more.

  • Page 21: Modes Of Operation

    OSTC3 and read recorded Surface mode dive data. To wake up the OSTC3, push one of the buttons SET/MENU or ENTER. In surface mode the display shows general information as time, date,...
  • Page 22 Dive mode The OSTC3 automatically switches into In dive mode the display shows current dive mode when it is at least 1,6 meter diving depth, dive time, maximum below the surface for five seconds. depth, the currently selected gas (in CCR...
  • Page 23 Sleep mode The integrated simulator allows you to When the OSTC3 isn’t operated at the get familiar with the functions of the surface, it switches into sleep mode after dive mode even before your first dive two minutes to save battery.

  • Page 24: Modes Of Diving

    Modes of diving In the main menu you can choose under The decompression calculation model is Deco mode, if you want to use the OSTC3 Bühlmann ZH-L16 without or Bühlmann for scuba diving, rebreather diving, ZH-L16+GF with gradient factors (read apnea diving or as depth gauge.
  • Page 25 You can switch into surface mode at any time by pushing SET/MENU. Push ENTER to confirm the QUIT? question. The OSTC3 switches automatically from apnea mode into surface mode after a 15 minutes delay and above a depth of...
  • Page 26 Gauge: With this dive setting, OSTC3 serves as a depth gauge. Decompression and saturation calculation are switched off.

  • Page 27: Compass Calibration

    Compass calibration OSTC3 has a tilt-compensated electronic compass. Like all other electronic compasses it must be calibrated before use. calibration compensates aberration that can be caused by the battery.
  • Page 28 The order the compass is absolutely necessary. of the axis rotation is not important. Keep OSTC3 away from any metallic It is recommended to compensate the object during the calibration process (at compass after battery change (it is not least 50 centimeters).

  • Page 29: Surface Mode

    Surface Mode Display in surface mode Permanent items In the surface mode the OSTC3 shows the 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 • desaturation diagram (After the dive, you can see the approximate tissue saturation in the desaturation diagram. In the middle part of the display you The 16 types of tissue according to can see extra information in the custom the Bühlman model are arranged view.

  • Page 31: Menu Functions

    Logbook: Recorded data from recent settings to prepare the next dive, adjust dives the base settings of OSTC3 and review your dives in the logbook. OC Gas setup: Set up your gas mix for scubadiving or your bailout gases for CCR To open the menu in surface mode push diving.
  • Page 32 These functions are described in the Deco mode: Settings for deco calculation following chapters of this manual. and dive modes (open circuit, closed circuit, gauge or apnea) of the OSTC3. Settings: Settings for time, language, display brightness, compass Exit: Exit the main menu...

  • Page 33: Logbook

    Logbook The OSTC3 records data during every dive. It can be retrieved from the logbook. The OSTC3 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. If the memory is full, existing records will be overwritten, starting with the oldest.
  • Page 34 ENTER. The dive profile and details page If you want to secure your recorded dive shows up. The details page also shows data, you can connect the OSTC3 via position index, date, maximum diving USB to a computer and readout the data depth, duration, minimum ambient (page 88).
  • 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 64).
  • Page 36 OC Gas setup Use 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 Type Choose a gas in the menu OC gas setup Each mix can be set to the following and push ENTER to see details or to type: change values. 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 Disabled gases are shown in blue letters. chosen underwater. The OSTC3 always computes the tissue load and the decompression scheme using the selected gas. It takes all deco gases in account for the decompression phase.
  • Page 39 ENTER button) until the required the MOD. The change depth can only be value is displayed. For reference, the configured for deco gases, not for travel OSTC3 displays the calculated maximum gases. operating depth (MOD) and equivalent narcotic depth (END) for your mix.

  • Page 40: Gas Setup

    Examples Dive with only one gas: Configure one Dive with two decompression gases: gas, for example gas 1 as first. Set up Setup another gas to deco and configure the mix using the submenu “setup” mix. the second deco mix. Disable the other gases (Type: disabled).
  • Page 41 Note In surface mode the actual gas list is shown via the custom view (right button), also in dive mode. 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 OSTC3 will calculate the decompression using up to five fixed setpoints. Sensor: Using the optional hwHUD or the ppO2 Monitor, the OSTC3 can monitor up to three O2 sensors. Sensor readings are also used for decompression calculations.
  • Page 44 CCR sensor: The CCR sensor shows ppO2 readings of each sensor attached with a hwHUD or a ppO2 monitor (via optical input). Additionally you can read mV voltages out of each sensor and see the battery level. In case of a sensor blackout, 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 1,6 bar, in 0,1 bar increments. You OC gas setup (page 36). can also configure the change depth for each setpoint. But in dive mode OSTC3 will not indicate the change depth. Decompression calculation uses always the actual 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: Simulator

    Simulator Use the simulator to simulate the dive mode of the OSTC3 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 49 Calculate decoplan As a planning aid, the OSTC3 can calculate To start calculation, select calculate deco decompression stops in advance to and push ENTER. planned dive. Hereby all settings of the OSTC3 and the tissue load of previous Wait while the calculation is going on.
  • Page 50 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 51 SET/MENU and confirm with ENTER. logbook. Simulated dives don’t affect any settings of the OSTC3. Of course Sim: -1m: descend 1 meter there will be no influence on the tissue loads from real dives.
  • Page 52 Note The OSTC3 stays 90 minutes in the simulation mode until it switches to sleep mode. Stop the dive mode manually not to waste battery.

  • Page 53: Deco Mode

    Deco mode In deco mode you can configure the dive mode of your OSTC3 (OC, CC, gauge or apnea) and select important settings for the decompression calculation. Dive mode: There are several dive modes for scubadiving (CR), closed rebreather diving (CCR), gauge mode or apnea diving.
  • Page 54 GF high does it with the percent) this decomodel uses saturation highest decostop. OSTC3 is set up to a factors. The OSTC3 is pre-set to a value GF low of 30 percent and a GF high of 85 for saturation of 110 percent and a value percent (GF 30/85).
  • Page 55 Safety stop: The safety stop can be TTS in five minutes. switched on or off. After a dive within the no deco limit (NDL) the OSTC3 shows a safty stop of 3 minutes in 5 meter. It is displayed as a countdown split to the...
  • Page 56 Deco parameters The menu deco parameters contains model without gradient factors (100 to settings for gradient factors (when using 140%, default 110%) decompression calculation ZH-L16+GF) as well as settings for the saturation Desaturation: Multiplier for desaturation and desaturation factors (when using process in the standard Bühlmann model decompression calculation ZH-L16).
  • Page 57 Last deco: Setting for depth of last can be switched while diving (toggle GF). decompression stop. Choose here if the OSTC3 shall calculate its last stop at 3, aGF selectable: Yes: the GF-pair can be 4, 5 or 6 meter (default: 3m). If you have toggled underwater.
  • Page 58 ! Warning: Only change values for decompression calculation if you are aware of their meanings. The pre-settings of the deco parameters are established and proven. Changes have direct influence on the decompression calculation and modify the conservatism of the Bühlmann model.

  • Page 59: Settings

    Settings In this menu you can set up basic configurations, calibrate your compass and reset settings. Information Shows some device specific information as serial number, number of total dives, kind of battery and the actual used firmware.
  • Page 60 OSTC3. You can set up time and date with the ENTER button. Choose a date format: YYMMDD: year, month, day...
  • Page 61 In most cases the default Eco cable from the left or right side to your is recommended. Only if OSTC3 is used dive computer. often in low depths and bright sunlight,...
  • Page 62 Language The OSTC3 can be se tup in four Compass calibration: In this menu you languages: English, German, French and can calibrate your digital compass. How Italian. Choose your language with the to do exactly, look for page 27. ENTER button...
  • Page 63 Note Units: Display of depth and temperature in metric (m/°C) or imperial (ft/°F) units. Decompression information is based on Sampling rate: the sampling rate is absolute pressure and not on relative adjustable from 2 to 10 seconds. pressure. Therefore salinity does not effect this calculation.
  • Page 64 Reset menu In the reset menu you can put the Reset deco: To delete the current settings of the OSTC3 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 65 Use reboot and reset decodata only, if Reset all really resets all settings in the you don’t plan a repetitive dive within OSTC3 to their factory defaults, it also the next 48 hours. occurs to the compass calibration and the personal text.
  • Page 66 Reset logbook: Deletes all data in the Reset battery: When replacing the logbook. The counter starts again with battery you have to choose the battery zero. If you want your personal number type. If you were wrong, you can correct of dives to be shown in the logbook, you your information in this menu (how to have to set up (again) the number via...

  • Page 67: Dive Mode

    Dive mode...

  • Page 68: Displays In Dive Mode

    • Future TTS (@+xx): shows your deco in Permanently shown information xx minutes at the same depth. Future TTS is only displayed, when the OSTC3 In dive mode the OSTC3 shows the is in deco and no longer in the NDL (NO following items permanently on the Deco Limit).
  • Page 69 Selectable information • Display of up to three sensor readings (using the optional hwHUD or the Selectabel items can be monitored on ppO2 monitor) the center of the display. You can scroll • Compass through with the right button. • ceiling (the ceiling is corresponding to the GF high, without consideration of •...
  • Page 70 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 72: Menu Functions

    Menu functions In dive mode (OC) you can select your five seconds or the OSTC3 returns to preset gases (gaslist) und reset the normal display. calculation of your average depth (reset avr./stopwatch). During CCR diving you can choose setpoints and bailout gases...

  • Page 73: Gaslist

    Gaslist Note In the menu gaslist you can make your Gases in red have too high ppO2 to be gas change and select the actual gas. used in the current depth (they can be You can choose the gas mixes that you selected by the user anyway).
  • Page 74 computer proposes you the fitting gas (e.g. Nx62?). So you see at once which gas you shall use. Just confirm with ENTER.

  • Page 75: Setpoint Change

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

  • Page 76: 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 77: Maintenance

    Maintenance Housing Wash your OSTC3 after every dive with your OSTC3 over night in fresh water. fresh water, especially after diving in Don’t use any cleaning agents or seawater. If the housing is very dirty, put . solvents. ! Warning...

  • Page 78: Bungee

    Bungee The OSTC3 is delivered with bungees. The bungees are hand washable and The bungee wristband can be set to your can be replaced if necessary. In order arm diameter individually. To tighten to replace the bungee, remove the four...

  • Page 79: Replacing The Battery

    Replacing the battery You can easily replace the battery of the Open the battery compartment and OSTC3 by yourself. remove the old battery. Insert a new battery of the size AA with Note the plus pole ahead. When you replace your battery, the Check the battery compartment o-ring.
  • Page 80 Alkali-Mangan (“Alkaline”) batteries. a new 3,6V battery or a new 1,5V Battery. Simple Zinc–Carbon batteries should be With this information the OSTC3 can avoided. Leaking Zinc–Carbon batteries calculate the remaining battery capacity. may permanently damage the OSTC3 battery compartment. Note...

  • Page 81: Spare Parts

    Spare parts Bungees, batteries (Saft LS14500 3.6V) and caps for the battery compartment are available in the online shop of heinrichs weikamp or at your dealer.

  • Page 82: Readout The Dive Computer

    Make sure the USB connector dispersant (e.g. WD40) to avoid corrosion. is closed after downloading your dive data. Don’t apply force when closing the USB cover. The OSTC3 doesn’t load up batteries via USB.
  • Page 83 (COM x). For MAC OS is a Disk-Image-file Download the FT232R interface driver: (.dmg) available. www.ftdichip.com Unpack the zip archive to a directory Connect the USB interface of OSTC3 with your computer. It will be recognized...

  • Page 84: Software For The Ostc3

    Software for the OSTC3 Note Data transfer with the OSTC3 is supported by many software applications for all common platforms. The applications For programmers, we have the OSTC3 provide easy-to-operate functions for interface description available. transferring recorded dive data, and for configuring and remotely controlling your OSTC3.

  • Page 85: Updating The Firmware

    - at least ones a year. improvement. To make the best of your Updates for the OSTC3 are free of charge, OSTC3, use the latest stable firmware of course. On the homepage you can that is available at the heinrichs weikamp download the OSTC companion.

  • Page 86: Technical Data

    Technical data Display High resolution IPS LCD monitor with ambient light sensor, field of view: 160°, Resolution: 320 x 240 pixel, status display: 2 LEDs Connections USB, digital optical input for hwHUD and ppO2 Monitor Sensor Combined depth/temperature sensor 3D compass (fully tilt-compensated) AA battery of any type Power supply Up to 50 hours of operation, 1+ year standby...

  • Page 87: 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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