heinrichs weikamp OSTC User Manual
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heinrichs weikamp OSTC User Manual

Ostc dive computer with the firmware hwos tech
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OSTC dive computer
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Summary of Contents for heinrichs weikamp OSTC

  • Page 1 User manual OSTC dive computer with the firmware hwOS tech...
  • Page 3 Contact For any questions relating to your OSTC, please contact us: • internet forum: forum.heinrichsweikamp.com • e-mail: info@heinrichsweikamp.com • post: heinrichs weikamp Adlerstraße 7 79098 Freiburg im Breisgau Germany...
  • Page 4 Use the firmware updates to keep your The firmware hwOS tech which is used in OSTC always up to date. Get it for free at: the dive computers OSTC plus and OSTC 2 offers various possibilities for configu- www.heinrichsweikamp.com...
  • Page 5 You can use the OSTC intuitively. But to become familiar with its functions and to use it in the best way, we recommend you to read this manual carefully. Additionally you find some videos on our homepage and facebook page...

  • Page 6: Table Of Contents

    Requirements ........11 Surface Mode ..........28 Before every dive .........12 Display in surface mode ....28 While diving ..........14 Menu functions ........30 Safe use of the OSTC ......16 Settings ..........32 Environmental conditions ....17 Deco mode ..........40 OC Gas Setup ........45 CCR Setup ..........51 Logbook ..........54...
  • Page 7 Accessories ..........77 Menu functions ........66 Readout the dive computer ....78 Gaslist ..........67 Bluetooth connection ......79 Setpoint change........69 Software for the OSTC .......80 Bailout and diluent ......69 Updating the firmware .....80 Reset Avr (Stopwatch).....70 Set marker ..........70 Technical data ..........82 Bearing ..........71 Disposal ............83...

  • Page 8: Common Advices

    The OSTC firmware (integrated software) is an ongoing development. To make the best use of OSTC, we advise you to use the latest stable firmware available on our website: www.heinrichsweikamp.com...

  • Page 9: About This Manual

    ! Warning indicates a situation that carries a sig- Terms of use nificant risk or injury Copyright © heinrichs weikamp GmbH Caution Copying or reusing this manual or parts of this manual is not allowed without indicates a situation that carries a risk of...

  • Page 10: Functions Overview

    Functions overview Planning Configure and check gas mixtures as Your dive computer OSTC assists you well as setpoints in CCR mode, calculate with the following functions: a decoplan in the simulator Display Record Diving depth and duration according Time, duration, depth profile, tempera-...

  • Page 11: Safety Advices

    It may harm your health if you rely on a wrong config- ured dive computer. Do not use this dive computer, if you don’t know or understand the settings and displayed information of OSTC.

  • Page 12: Before Every Dive

    Before every dive Configured correctly? Check the settings of your OSTC. If nec- Plan your dive. essary, adjust the settings according to Set up a dive plan independently from your dive plan and equipment. OSTC and take it with you when diving.
  • Page 13 Device waterproof? Display messages? The OSTC is completely closed and has Check the screen of OSTC. Do not dive if no openings that could cause leakages. your dive computer displays a warning. But for safety check the housing for Check the cause of the warning.

  • Page 14: While Diving

    While diving Take the OSTC with you on every repeat dive – don’t lend it to anyone. Take a backup system with you A correct calculation of tissue saturation While diving, always carry a backup requires that your OSTC is: system to measure duration and depth of your dive independently from OSTC.
  • Page 15 ! Warning Saturation data is lost when updating the OSTC firmware or in the unlikely event of a failure. In these cases, do not dive any further until tissue saturation has returned to normal level.

  • Page 16: Safe Use Of The Ostc

    (OSTC plus) can be removed. There is no other way to open the housing without damaging the device. Keep your OSTC out of children´s reach. Small parts such as the battery cap (OSTC plus) may represent a choking hazard.

  • Page 17: Environmental Conditions

    OSTC automatically adapts to the actual 120 meter. surface pressure. If you use an AA batterie for the OSTC plus: Make sure that the used battery is suitable for the ambient tempera- ture to be expected in your dives. For cold water diving (under 10°C) we re-...

  • Page 18: Before First Use

    OSTC completely before you use it the first time. Before diving, you need to adjust some settings as described in this manual. Fa- miliarize yourself with the OSTC. It is rec- ommended that you read this manual carefully.

  • Page 19: Handling

    Handling Operate the OSTC 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 indepen- dent to ambient pressure. Push the left button to scroll through the menu, use the right button to confirm.
  • Page 20 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

    Modes of operation To wake up the OSTC, push one of the buttons SET/MENU or ENTER. If it OSTC has three modes of operation and doesn`t wak up at once and is in deep switches automatically between them: sleep mode (look for next page), push Surface mode, dive mode and sleep the button once more after 5 seconds.
  • Page 22 Dive mode In dive mode the display shows current diving depth, dive time, maximum The OSTC automatically switches into depth, the currently selected gas (in CCR dive mode when it is at 1,6 meter below diving the setpoints), decompression in- the surface for five seconds.
  • Page 23 Sleep mode After 15 minutes in sleep mode, OSTC switches to deep sleep mode. In deep When the OSTC isn’t operated at the sleep no buttons are requested, what surface, it switches into sleep mode after saves a lot of energy. Move the dive com- two minutes to save energy.

  • Page 24: Modes Of Diving

    PSCR: Use this dve mode for diving with a PSCR rebreather. In the main menu you can choose under Deco mode, if you want to use the OSTC The decompression calculation model for scuba diving, rebreather diving with for OC, CC and PSCR is Bühlmann ZH-L16 a CCR or PSCR, apnea diving or as depth without or Bühlmann ZH-L16+GF with...
  • Page 25 Decompression and saturation calculation are switched calculation is switched off. off. In apnea mode the OSTC remains in dive mode even when diving at low depths. You can switch into surface mode at any time by pushing SET/MENU. Push ENTER to confirm the QUIT? question.

  • Page 26: Compass Callibration

    Compass calibration OSTC has a tilt-compensated electronic compass. Like all other electronic com- passes it must be calibrated before use. The calibration compensates aberration that can be caused by the battery. It is recommended to compensate the com- pass if your dive computer shows big de- viations in the heading reading.
  • Page 27 Do this a number of times bration process (at least 50 centimeters). within 60 seconds. After this while the calibration ends automatically. During the calibration routine the OSTC shows X-, Y- and Z-axis.

  • Page 28: Surface Mode

    Surface mode Display in surface mode Permanent items In the surface mode the OSTC shows following items permanently: • ambient pressure, clock, date • temperature • battery: level, type and voltage • dive mode: Open circuit (OC), Closed Circuit (CC), PSCR, Gauge or Apnea •...
  • Page 29 Selectable items • elapsed time since last dive, duration and maximum depth of the last dive In the middle part of the display you can see extra information in the custom • desaturation diagram (After the view. You can switch them with the right dive, you can see the approximate button.

  • Page 30: Menu Functions

    In surface mode you can adjust the set- tings to prepare the next dive, adjust the OC Gas setup: Set up your gas mix for base settings of OSTC and review your scubadiving or your bailout gases for dives in the logbook.
  • Page 31 Deco mode: Settings for deco calcula- tion and dive modes (open circuit, closed circuit, PSCR, gauge or apnea) of the OSTC Settings: Settings for time, language, display brightness, compass and more. Start Bluetooth and reset menu.

  • Page 32: Settings

    Settings In this menu you can set up basic con- figurations, calibrate your compass and reset settings. Information Shows some device specific information like serial number, currently used firm- ware version, number of total dives, type of battery and the elapsed time since last battery charging/change, update or reboot (uptime).
  • Page 33 ENTER button. Choose a date format: Language YYMMDD: year, month, day The OSTC can be se tup in English or DDMMYY: day, month, year German. To use the languages Italian MMDDYY: month, day, year and French, download the suitable firm- ware on our homepage: www.heinrichsweikamp.com...
  • Page 34 It cases the default Eco is recommended. varies from 7 to 20 meter per minute. If If the OSTC is used often in low depths you choose No, the value 10 m/min will and bright sunlight, a higher setting is be used during the whole dive as thresh- recommended.
  • Page 35 Dive timeout: After diving the OSTC in the logbook to match your actual shows a countdown of five minutes (pre- number of dives. In the detail view of the set). When you descend again within logbook the last dive isn’t shown as dive...
  • Page 36 Note Salinity: This setting allows you to adjust if you dive in salt water or in fresh water. This value has a slight effect on Decompression information is based on the display of the actual and maximum absolute pressure and not on relative depth.
  • Page 37 Buttons: You can adjust the sensitivity of the piezo buttons and how strong you have to push them. The higher the value, the harder you have to push. Push ENTER until the required value is displayed (from 20% to 100%, default: 40%)
  • Page 38 In the reset menu you can put the set- and push ENTER. You`ll be prompted to tings of the OSTC to its default values confirm the action. For the next dive the and start the dive computer from new.
  • Page 39 Dives in Reset all really resets all settings in the the logbook and the dive counter will not OSTC to their factory defaults, it also be reset. occurs to the compass calibration and the personal text. Once confirmed this Reset logbook: Deletes all data in the can’t be undone! Saturation and no fly...

  • Page 40: Deco Mode

    Deco mode In deco mode you can configure the dive mode of your OSTC and select important settings for the decompression calcula- tion. Dive mode: There are several dive modes for open circuit (OC), closed circuit re- breather (CCR), PSCR, gauge mode or apnea diving.
  • Page 41 90 percent. Thereby GF high does it with the highest deco- there is a safety margin of 10 percent to stop. OSTC is preset to a GF low of 30 the M-value. percent and a GF high of 85 percent (GF 30/85).
  • Page 42 (Shouldn`t occur in real life, but this switched on or off. After a dive within value is limited by the deco model.) the no deco limit (NDL) the OSTC shows a safety stop of 3 minutes in 5 meter. It...
  • Page 43 Last deco: Setting for depth of last de- stay on the current depth. compression stop. Choose here if the OSTC shall calculate its last stop at 3, 4, Deco parameters 5 or 6 meter (default: 3m). If you have heavy waves, a deeper last decostop can GF low: Lower value of the GF-pair in be better.
  • Page 44 ! Warning Alternative GF: Settings for an alterna- tive GF-pair which can be switched while diving (toggle GF). Only change values for decompression calculation if you are aware of their aGF selectable: Yes: the GF-pair can be meanings. The presettings of the deco toggled underwater.

  • Page 45: 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 46 Type Deco: Gases used for decompression Each mix can be set to the following Disabled: Gas is disabled and is not type: taken into account for the decompres- sion prognosis First: The first gas which is used when the dive starts. Only one gas can be Disabled gases are shown in blue letters.
  • Page 47 The first gas is used when starting the dive. All gases (even disabled ones) can be chosen underwater. The OSTC 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 48 (MOD). push ENTER until the required value is Use Reset to MOD to reset the value to displayed. For reference, the OSTC dis- the MOD. The change depth can only be plays the calculated maximum operat-...
  • Page 49 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 50 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 51: Ccr Setup

    CCR setup Type (Setup diluent type) In CCR setup you can configure all set- Every diluent can be one of the following tings you need for diving with a CCR and type: a PSCR. For deco calculation in CCR mode you can use fixed setpoints.
  • Page 52 OSTC also configure the change depth for each shows the better gas. setpoint. But in dive mode OSTC will not indicate the change depth. Decompres- Setup of the diluents is the same as for sion calculation uses always the actual OC gas setup (page 35).
  • Page 53 Note PSCR menu Settings for diving with a PSCR The gas mixture and the resulting de- compression calculation of a PSCR devi- O2 drop: Drop of O2 value in the PSCR ates considerably from the calculation of compared to the diluent per breath. Set- OC or CCR diving.

  • Page 54: Logbook

    Logbook The OSTC records data during every dive. It can be retrieved from the logbook. The OSTC 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 55 Logbook entries are sorted in chronologi- Markers are shown with a M. cal order, starting with the most recent entry. Every entry shows position index, Note date, maximal depth and dive time. To see details of the selected dive, push Via Settings >...

  • Page 56: Simulator

    Simulator Use the simulator to simulate the dive mode of the OSTC 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 57 Calculate decoplan To start calculation, select calculate deco and push ENTER. As a planning tool, the OSTC can calcu- late decompression stops in advance to Interval: Increase interval in 10 minutes planned dive. Hereby all settings of the steps up to 240 minutes OSTC and the tissue load of previous real dives are taken into account.
  • Page 58 When the calculation is finished, the The duration is additionally represented display shows the decoplan with the graphically. If there are more than eight planned decostops. Depth is displayed in stops, more stops can be shown with the meters, duration in minutes. ENTER button.
  • Page 59 Simulated dives can be maximum 90 minutes long and are not stored in your logbook. Simulated dives don’t affect any settings of the OSTC. Of course there will be no influence on the tissue loads from real dives. Select the maximum depth and select start simulator to start the simulation of the dive mode.
  • Page 60 Note depth menu. Select the desired value with SET/MENU and confirm with ENTER. The OSTC stays 90 minutes in the simu- Sim: -1m: descend 1 meter lation mode until it switches to sleep Sim: + 1m: ascend 1 meter mode. Stop the dive mode manually to Sim: +5’: longer the divetime for 5...

  • Page 61: 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 OSTC is In dive mode the OSTC shows the follow- in deco and no longer in the NDL (No ing items permanently on the display: Deco Limit).
  • Page 62 Selectable information • GF settings, alternative GF (aGF), current GF Selectabel items can be shown in the • compass center of the display. You can toggle • OC gaslist through these with the right button. • ppO2, ceiling, current GF •...
  • Page 64 Warnings • too high gradient factors and missed decocstop (the missed decostop is Warnings appear in red on the display. marked red) Depending on your custom view the • too fast ascent warnings appear in the custom view • when the decompression calculation is or in the upper part of the display (not based on the alternative GF-pair double).

  • Page 66: Menu Functions

    Menu functions five seconds or the OSTC returns to In dive mode (OC) you can select your normal display. preset gases (gaslist) und reset the cal- culation of your average depth (reset Note avr./stopwatch). In CCR mode you can also choose setpoints and bailout gases,...

  • Page 67: Gaslist

    Gaslist In the menu gaslist you can make your Note gas changes and select the current gas. You can choose the gas mixes that you have prepared in gas setup in the surface Gases in red have too high or low ppO2 mode.
  • Page 68 puter proposes you the better gas (e.g. Nx50?). So you see at once which gas you shall use. Just confirm with ENTER.

  • Page 69: Setpoint Change

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

  • Page 70: Reset Avr (Stopwatch)

    Reset Avr (stopwatch) Set marker In dive mode you can select the average If you push Marker there will be a small depth and stopwatch with the right marker (M) in your logbook from that button. Total avr indicates the average point.

  • Page 71: Bearing

    Bearing bearing. But it only is stored as long as the dive computer is on. To make a bearing with the compass at first go to the compass view with the right button. Then push the left button twice until bearing is displayed. With the right button you confirm the compass course you want to use.

  • Page 72: Rate Of Ascent

    (e.g. -15m/min). Settings for the display of the rate of ascent can be done in display settings (page 60). After diving the OSTC shows a count- down of five minutes. When you descend again within this period, the whole time of diving will be saved in the logbook as only one dive.

  • Page 73: Maintenance And Care

    To tighten the bungee, make a reef knot above the If the housing is very dirty, put your OSTC circular cavity (tighten knot very strong). over night in fresh water. Don’t use any Cut remaining bungee after about one cleaning agents or solvents.

  • Page 74: Charging The Battery

    As soon as it is charg- ing, the pad is illumninated permanently The OSTC has a high-capacity recharge- in green. Start the OSTC and watch the able battery. In eco mode it offers up to battery indicator on the display. When 60 hours of divetime.
  • Page 75 Note When the battery is totally empty, the desaturation time and no fly time are still remaining. But check time and date after restarting the dive computer.

  • Page 76: Changing The Battery

    The rechargeable battery Close the battery cap until it is inserted of the OSTC plus can be changed by user in the housing. Don`t close it with force. and replaced by a normal AA battery.

  • Page 77: Accessories

    (Saft LS14500 3.6V), caps for or a 3,6V lithium ion battery. With this the battery compartment and screen information the OSTC can calculate the protectors are available in the online remaining battery capacity. shop of heinrichs weikamp or at your dealer: www.heinrichsweikamp.com...

  • Page 78: Readout The Dive Computer

    Readout the dive computer You can connect your OSTC easily via Bluetooth to your smartphone, per- sonal computer or notebook. So you can upload software and download your logbook. All you need is a Bluetooth capable computer. The OSTC works with Bluetooth “Smart Ready”, depending on...

  • Page 79: Bluetooth Connection

    When the connecting is done, the PC After activating you have four minutes creates a virtual COM-port. Via this the to connect the OSTC with your personal PC software communicates with the computer. When there is no connection, OSTC. You don’t need any special drivers.

  • Page 80: Software For The Ostc

    To make the for all common platforms. The applica- best of your OSTC, use the latest stable tions provide easy-to-operate functions firmware that is available at the hein- for transferring recorded dive data and...
  • Page 81 Note We recommend you to upgrade the firmware regularly - at least ones a year. Updates for the OSTC are free of charge, of course. On the homepage you can download the OSTC companion. With this software you can easily upload the newest firmware.

  • Page 82: Technical Data

    Power supply Integrated Lithium Battery or AA battery of any type (OSTC plus only) Operating elements Two sensor buttons (OSTC plus), Two piezo buttons (OSTC 2) Housing Milled from a single block of alloy (OSTC plus), ABS-PC (OSTC 2), scratch resistant borosilicate-glass panel...

  • Page 83: Disposal

    Disposal According to the European WEEE direc- tive, electrical and electronic devices must not be disposed with consumer waste. It’s components must be recy- cled or disposed apart from each other. Otherwise contaminative and hazard- ous substances can pollute our environ- ment.

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