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Hollis DG05 Manual

Dive computer
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DG05
Dive Computer Manual
Hollis DG05 User Manual RevA
1

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Summary of Contents for Hollis DG05

  • Page 1 To ensure your user information is up to date. Please check www.HollisGear.com for updates to this manual. DG05 Dive Computer Manual Hollis DG05 User Manual RevA...
  • Page 2 Model Types covered in this manual DG05 Computer Optical Rebreather Interface (ORI) Wireless HP gas Interface WARNING Diving is an adventurous sport and should not be undertaken without receiving the necessary training from a recognised training agency. Hollis DG05 User Manual RevA...
  • Page 3 High pressure gas sensors and PO2 monitors when connected to DG05 dive computer product provide for the additional monitoring of key safety data. It is important that in the unlikely event of failure, back-up instrumentation is carried.
  • Page 4 RTS - Run-time to surface O2 - Oxygen MOD - Maximum operating depth EGF - Equivalent Gradient Factor MaxD - Maximum depth Deco - Decompression ORI - Optical Rebreather Interface VGM - Variable Gradient Model Hollis DG05 User Manual RevA...
  • Page 5 Congratulations on your purchase of your DG05 dive computer. You are going enjoy learning how to use your new computer. The DG05 comes with the following features:  OLED Screen  Wireless HP Transmission  Optocon (IR transmission of PO2/PC link) - No wet connectors ...
  • Page 6 The DG05 battery comes with a 4-year warranty. The lithium battery needs to be serviced and replaced at the factory. Do not take the DG05 apart or change the battery yourself. Warranty is void if the DG05 has been opened or tampered with.
  • Page 7 Your DG05 is activated by pushing and holding either switch. The first screen to be displayed will be the Home screen. Hollis DG05 User Manual RevA...
  • Page 8 OLED display modes screen. OLED dive screen with ascent rate (blue) bar on the right. Gmode can be set to HP (if fitted), TTS or PO2. PO2 is only available if a DG05 rebreather interface (ORI) is fitted. No stop dive display...
  • Page 9 Note. The battery indicator on the NHeO 3 will show a voltage, whereas the DG05x will have a % remaining display. Note. The screens show (unless identified otherwise) are with the DG05x in non- OLED Screen mode (see page 11). Hollis DG05 User Manual RevA...

  • Page 10: How To Enter A Pin

    PIN(s), when you make the purchase you will need to provide the unique 16 digit serial number of your DG05. This Serial Number is on line 4 of the PIN screen which can be found in the SETUP menu.
  • Page 11 PINs so keep them in a safe place away from your DG05. Then, if your computer is ever lost or stolen, notify us and, as your identifying particulars will still be there on the screen, we can look out for it in the event that it ever comes in to us for repair or upgrade.

  • Page 12: Pre Dive Check

    The Mini Screen feature in the Home Screen is designed primarily to make it easy for you to check the settings in your DG05 and allow you to change any of the settings if necessary before you dive. The mini screen shows a small version of the actual menu you will go to by selecting <GO>.
  • Page 13 Setting the Time & Date Screen Mini Screen Full Screen The DG05 is accurate to the European PREN standard for digital dive timing devices but it is not a precision chronograph. You may need to adjust it occasionally in order to display the correct time.

  • Page 14: General Setup

    1.3 Bar or greater. Note: This means in practice that if you do a very fast descent the DG05 computer may not switch on until you are at depth.
  • Page 15 Now a short push of both button moves along the gas row and allows you to change a function/% by using the – and + buttons. If you change the MOD the PO2 of the selected dive gas will also change. Hollis DG05 User Manual RevA...
  • Page 16 Setting the MOD is important as this is the depth at which the DG05 will automatically prompt you to change gases and it is also the depth which it bases its’ decompression look ahead calculations upon. A short push of both buttons exits the menu and first gas select screen on the previous page is again displayed.
  • Page 17 You have now set up all the key features to enable you to go diving. There are many other features available to allow you to customise your diving experience. Please read on for more information! Hollis DG05 User Manual RevA...
  • Page 18 Decompression Algorithms DG05 dive computers have the option to use a derivative of the Buhlmann ZHL 16 algorithm modified to assimilate the latest thinking in practical micro-bubble avoidance for enhanced decompression safety. The DG05 comes as standard with an alternative algorithm called VGM (please see the description at the end of this manual and on our website).
  • Page 19 This connector uses infra red light to transmit data to and from the dive computer. This system is called Optocon. In the case of the DG05 (with a rechargeable battery) two charging pins are incorporated within the connector. Remote devices such as oxygen sensors can be connected to the system (there is a separate system for wireless HP transmitters).
  • Page 20 All data reconnection is carried out automatically. This system offers a potential battery module life of around 3-5 years (dependant on the sensor attached.) Hollis DG05 User Manual RevA...
  • Page 21  Inspect the cable end o-ring for damage – replace if required. Apply a small amount of silicone grease to the o-ring to aid assembly.  With the DG05 charge/PC LINK cable, inspect the pins in the end of the cable for damage.
  • Page 22 The bulkhead connector is watertight and any water that the connector experiences cannot harm your DG05. If water is found inside the blank cap or the ends of your cable link, flush them and the bulkhead connector with fresh water as soon as possible afterwards, then leave them to dry completely BEFORE refitting the cap.
  • Page 23 At present, up to 4 HP senders can be received in a single DG05. Each sender is ‘paired’ with the DG05 and allocated to a specific gas in the Gas List. This means for the first time in a dive computer, multiple HP contents can be tracked for technical dives and is usful for OC divers with multiple cylinders or CCR divers with two in-board cylinders and two bailout/gas switch cylinders.
  • Page 24 If no devices are in range then the screen below is displayed: When first connecting a sender to the DG05, the device will appear in the non-paired page. Then by selecting to pair any device in this list, it will move to the paired page where the associated gas can then be chosen.
  • Page 25 If the currently selected gas has an HP sender associated with it, then the contents of the selected gas will be shown in the main dry screen of the DG05. Additionally, the HP contents can be shown in large digits on the main OLED dive screen by selecting HP in the Dvo (dive options screen) Gmode field.
  • Page 26 All cylinders at 30 bar and below will be shown in red on the gas list. Additional HP monitoring (pressure gauges) should always be carried. Prior to diving the accuracy of the electronic HP sender should be tested against a known, calibrated analogue HP pressure gauge. Hollis DG05 User Manual RevA...
  • Page 27 XFunc XFunc will automatically change when the DG05 sees a new device connected to the Optocon connector. If one or more oxygen sensors are sensed, then the default mode is 3Xo2.
  • Page 28 This is a correct assumption as it is the partial pressures of the inert gas in the diluent that drives decompression. Alarms on the DG05 showing the actual diluent PO2 will display once the diluent/setpoint PO2 level has been exceeded.
  • Page 29 The DG05 will assume the O2 cell has not been calibrated correctly. Again this is the most likely result as training agencies and normal dive practice do not allow for turning of the diluent in a rebreather.
  • Page 30 TTS = display Total Time to Surface  TTS + - displays the total time to surface and a 16 compartment tissue loading graph Screen with a dive graph and a tissue loading graph shown Hollis DG05 User Manual RevA...
  • Page 31 Triple PO2 Monitor A triple PO2 cell monitor for a rebreather can be directly connected to the Optocon connector on the DG05. This option, when enabled makes the following screens and features available: To allow calibration of the O2 cells, the O2 sensor screen below will be shown if XFunc is set to 3xO2.
  • Page 32 F – Sets the photo and the text will disappear after a few seconds. A short push of any button will restore the menu text. Screen pictures will switch periodically when Photo is set. These pictures are currently factory defaults but will be able to be uploaded in the future. Hollis DG05 User Manual RevA...
  • Page 33 This is a useful function to verify cell accuracy before using it to calculate decompression. MaxD – When set the maximum depth is displayed in the top right hand section of the dive screen. Hollis DG05 User Manual RevA...
  • Page 34 HAVE column and the gas mixture you need in WANT. The ADD BAR column will automatically show the fill pressures to add. If you are filling an empty cylinder, leave the HAVE column at 0 (zero). Hollis DG05 User Manual RevA...
  • Page 35 - or right + switch will change the highlighted number by 1. A long push of - or + will change the highlighted number by 10. A long push of both switches will return you to the Home Screen. Hollis DG05 User Manual RevA...
  • Page 36 The left octopus will explode when he is hit and you will then get a summary of your score. In the game screen short pushes of both switches will move you between Ang (angle), Vel (velocity) and Fire modes. When Hollis DG05 User Manual RevA...
  • Page 37 (#10). PC Link Select this screen if you want to download dives from your DG05 to a PC. Once you have the cable connected and the software and drivers loaded on your computer a short push of the right arrow will start the downloading process.
  • Page 38 Dive plan Once you have set your planned dive gases in the DG05. Diveplan allows you to enter depth, time and surface interval and calculate a set of backup tables. The current decompression used for planning is shown. A short push of both switches moves between fields. A short push on either the left or right switch adjusts the number in the highlighted field.
  • Page 39 Now a short push of both button moves along the gas row and allows you to change a function/% by using the – and + buttons. If you change the MOD the PO2 of the selected dive gas will also change. Hollis DG05 User Manual RevA...
  • Page 40 (radio button), while the look-ahead will be wrong your actually time at each stop will be based on the gas set (radio button)‘on-screen’ at the time (assuming that is the gas you are breathing). Hollis DG05 User Manual RevA...
  • Page 41 Home Screen. Units When “Units” is highlighted, a short push of either the right-hand + or left-hand - switch will change the depth and temperature settings in your DG05 from metric (m) to imperial (ft) or vice versa. Safe This enables you to make the DG05’s decompression calculations more conservative.
  • Page 42 Mode Your DG05 comes with G10 mode enabled. This is standard 2010 software with all the features and options referred to in this manual (model dependant). A push of either the right-hand + or left-hand – switch when mode is highlighted will change your DG05’s mode from G3 to G10 mode.

  • Page 43: Automatic Tissue Tolerance Adjustments

    Automatic tissue tolerance adjustments To allow the DG05 to give realistic decompression and no stop times across the 10m to 120m range the VGM algorithm automatically modifies tissue tolerances in line with accepted decompression schedules based on stochastic data. Tissue over pressure tolerances (M values) begin to be modified from standard DG05 Buhlmann settings above 30m bottom depth and 30min bottom time.
  • Page 44 Use Diveplan to check settings for the next dive. Fine tuning of Fast, Mid and Slow tissues can be used to achieve user specific decompression profiles. Note: Preset conservatism settings (0% = normal standard safety value) Hollis DG05 User Manual RevA...

  • Page 45: Extreme Exposure Dives

    Extended mid range stops are a common technique used on deep dives to allow surfacing with a lower bubble count than would otherwise be expected – Britannic 1997 exploration is an early example of this technique. Hollis DG05 User Manual RevA...
  • Page 46 A basic version of PC dive planning software (VGM ProPlanner) is available free from the web site. This allows a quick way to see what decompression the DG05 dive computer will give and allow specific conservatism factors to be tried out on the PC before choosing the right ones for a dive on the DG05.
  • Page 47 It is the screen displayed after running through the decompression stop look ahead. The EGF is also shown on the DivePlan exit screen and the dive log in the DG05. Summary VGM is able to adapt to the dive actually dived –...
  • Page 48 Usage - this figure tells you the total dive hours carried out on your DG05 computer to date. Diveplan The Diveplan screen allows changing of preset settings for VGM if the VGM algorithm is active. Having selected the tick option a dive screen is displayed By selecting a long push of the right button, page after page of decompression stops are displayed.
  • Page 49 The Equivalent Gradient Factor (EGF) is also displayed in the Dive Log and the Dive summary data: Hollis DG05 User Manual RevA...
  • Page 50 For instance: DG05 18m dive No Stop Time = 39 mins DG05 18m with 3 min stop at 4.5m = 54 mins This means that if you were to do a dive to 18m on air with 54 minutes bottom time, you would see a required 3 minute stop at 4.5m on your look ahead schedule as...
  • Page 51 If you mistakenly set the MOD shallower than the preferred switch depth, you can still switch at the right depth (or any depth) and tell the DG05 you have done so. Switching to a decompression gas too deep will trigger a PO2 warning. Incorrectly...
  • Page 52 The Optocon connection system allows a range of sensors to be connected to the DG05. As this is an infra-red system there are no electrical connections as such hence there is nothing to become corroded as with conventional wet connectors. Having connected up the relevant interface the DG05 will automatically set the XFunc mode to suit the interface.
  • Page 53 Graph The DG05 has a second log screen, accessible by a long push of both switches, in which a graphic profile of the dive is shown. While in the graphic profile screen, a short push of both switches will bring up a screen showing a graph of ambient temperature throughout the dive.
  • Page 54 If the external function is changed during the dive, the graphing mode may become confused and caution is advised in interpreting the graph data if this has occurred. Hollis DG05 User Manual RevA...
  • Page 55 Time To Surface (TTS) is 3 minutes. The graph shows the track of the dive so far and the tissue compartments are green showing no decompression is required. Note that in the Display Modes Screen the diver has ticked MaxD, NST and TTS to display these numbers. Hollis DG05 User Manual RevA...
  • Page 56 The graph shows the track of the dive so far and the tissue graph is green showing no decompression is required. Note that in the Display Modes Screen the diver has ticked Deco, MaxD, NST and TTS. Hollis DG05 User Manual RevA...
  • Page 57 “MaxD” and “deco!”. The tissue graph shows all 16 tissue compartments. Green means no decompression, yellow means you have decompression but the ceiling is below 10m/33ft. red means you have decompression and the ceiling is above 10m/33ft. Hollis DG05 User Manual RevA...
  • Page 58 Note that in the Display Modes Screen the diver has ticked Deco and MaxD. Note too that when in deco the top line of the right side of the screen will alternate between “MaxD” and “deco!” Hollis DG05 User Manual RevA...
  • Page 59 In closed circuit mode with an external cell connected and XO2 set and XDec ON the actual from the external cell PO2 is shown on the second line up. When XFunc is set to 3xO2 then all three sensor readings are displayed. Hollis DG05 User Manual RevA...
  • Page 60 XFunc). Area D The OLED screen has an additional option. Area D will change in conjunction with GMode as per the table except it does not generate a graph mode and will show TTS instead. Hollis DG05 User Manual RevA...
  • Page 61 Blank External External FO2 used FO2 used for Deco for Deco With WiVi connected and HP selected in GMode then Screen Area C will display HP of the current active gas on the Gas List. Hollis DG05 User Manual RevA...
  • Page 62 DG05 that you have done so first by a long push on the left switch when the gas bottle is showing in the bottom left hand corner of the screen.
  • Page 63 If decompression is required, before you see the screen above, you will see a page(s) of decompression stop information. A short push of both switches in this screen takes you into the Dive Options screen. Hollis DG05 User Manual RevA...
  • Page 64 In these screens a further short push of the right switch move you to the next page of decompression stop information until the final summary screen is shown. A long push on the left switch at any time will return you to the first dive screen. Hollis DG05 User Manual RevA...
  • Page 65 Warnings The DG05 displays warnings in the form of on-screen messages in the top right section of the dive screen and with the backlight flashing. The right hand side of the screen changes colour from green to yellow to red.
  • Page 66  Missed stops is shown on reaching the surface after a dive where a decompression stop has not been completed.  Violated stops is shown on reaching the surface after a dive where a decompression ceiling has been breached for longer than 1 minute, but all Hollis DG05 User Manual RevA...
  • Page 67 MISSED STOPS warnings will be stored on the logbook and the warning will be displayed for 24 hours on the home screen. The DG05 will not lock you out. If you re-enter the water, best-guess decompression will still be shown but should not be relied upon.
  • Page 68 To use the DG05 with an analyser or to calibrate a rebreather link, with the highlight under XFunc use short pushes of either switch to bring up XO2. You will then be able to bring up the O2 SENSOR mini screen on your DG05’s Home Screen...
  • Page 69 When the reading on this screen is stable, a short push of both switches will calibrate the sensor (at .209 if using AIR as the CAL gas). Your DG05 is now calibrated. A short push on the left (Home) button will return you to the Home screen.
  • Page 70 CELL HIGH message. This refers to the mV output of your Oxygen Sensor Cell and may indicate that you have the wrong type of cell connected, that your cell needs replacing or the wrong CAL gas has been selected. Hollis DG05 User Manual RevA...
  • Page 71 Setting the CAL gas and the calibration procedure has been covered in the previous section. If having done this the rebreather sensors are not reading the same as the DG05 you, it is possible that the rebreather has not been properly calibrated. To test this, follow the manufacturer’s recommended calibration procedure.
  • Page 72 Home Screen) you will be able to move the highlight to the XFunc and XDec features via successive short pushes of both switches. To activate the DG05 for use with a rebreather link cable, with the highlight under XFunc use short pushes of either switch to bring up XO2 (single oxygen cell mode).
  • Page 73 XFunc and XDec features via successive short pushes of both switches. To activate the DG05 for use with a rebreather link cable, with the highlight under XFunc, use short pushes of either switch to bring up XO2. If the Optocon hardware is connected the system will automatically detect and select the right function.
  • Page 74 In the second Dvo screen a screen saver can be activated with its’ turn on time. If set, after the selected time period, the DG05 will display the PO2 of each cell in large characters. No other information will be shown on the dive display. A short push of the any button will return the screen to the normal dive display.
  • Page 75 Optocon Rebreather Interface Fitting Instructions and User Guide (Note this system is for use only with Rebreathers which require this system) The following user instructions must be read in conjunction with the DG05 Series Dive Computer section of this manual. WARNING THE DG05 IS DESIGNED TO MONITOR 1 OR 3 INDEPENDENT OXYGEN CELLS.
  • Page 76  Real-time PO2 monitoring from either one or three Rebreather oxygen cells.  Fraction of oxygen (FO2) display in Semi-Closed mode.  Small compact and robust design.  Fibre Optic Cable (FOC) link with automatic connection to the DG05 Dive Computer.  Blue LED displaying battery level.
  • Page 77 Battery Cap supplied (shown for clarity) NOTE: Hollis Gear can supply the rebreather wet connector to rebreather manufacturers and approved service centres ONLY. They will fit and test the connector and ensure the correct interfacing to the rebreather’s existing control system.
  • Page 78 A long hold on both switches will select the open circuit mode, where, in the event of a bailout being required, you can select the gas you want to breathe in open circuit. Please see page 44 of the DG05 Dive Computer Manual for further information on this feature.
  • Page 79 Cell 1 = 0.30 bar, cell 2 = 0.60 bar, cell 3 = 0.14 bar. Cells 1 and 2 only used (rule d. Cell 1 = 0.30 bar, cell 2 = 0.60 bar, cell 3 = 0.90 bar. All cells used as no obvious fault in any single cell (rule 3c). Hollis DG05 User Manual RevA...
  • Page 80  Take the replacement core and push it through the protective outer. Once through the outer, aim to have approximately 12-14 mm of exposed core visible at one end; this end is to be inserted in the Core Module to DG05 Dive Computer Cable FOC End .
  • Page 81 If not the inner FOC cable need to be shortened slightly.  The cable end can now be re-connected to the DG05 dive computer; this will cause the triple oxygen sensor module to perform its reconnection and self- calibration routine automatically now or when the computer is next turned on.
  • Page 82  Refit the triple oxygen sensor module assembly into the rebreather. Replacing the battery will cause the ORI module to perform its reconnection routine automatically now or when the DG05 dive computer is next turned on. Once this has been performed and the PO2 verified the system can be used.
  • Page 83 ORI Bulkhead Connector (Rebreather 2130 Wet Connector) ORI Battery Cap O-ring Push-fit connector O-ring 2001 Custom Length FOC (inner and outer) 2215 Battery Cap (Core Module) 2208 ORI to Rebreather Core Module 11 way cable Velcro Strap 2214 Hollis DG05 User Manual RevA...
  • Page 84 Prolink Download Software Prolink is the DG05 computers data download/upload software and it is a very powerful tool. This software adds the ability to log decompression stop and no-stop- time (NST) information during the dive, that is then downloaded and displayable on the Prolink software system (see www.hollisgear.com...
  • Page 85 DG05 Dive Computer and Variable Gradient Model VGM Decompression Algorithm The Variable Gradient Model (VGM) algorithm is available in the new DG05 dive computer. Free download software to complement the product is also available at www.hollisgear.com. Screen shot of VGM adjustment screen from the website.
  • Page 86 DG05 dive computer will give and allow specific conservatism factors to be tried out on the PC before then choosing the right ones for a dive using the DG05. The PC software also gives print outs and an output in common spreadsheet style format for use in creating back-up tables.
  • Page 87 DG05 range of computers and their associated decompression software against established diving tables with which you are happy and/or accept that you may be conducting experimental decompressions.
  • Page 88 All digital depth monitoring devices need a calibration check from time to time. Due to the potential depth of operation of DG05 computers it is recommended that you return yours to the factory for this check (a service after every 100 hours of diving is recommended.)
  • Page 89 Corroded battery contacts If the DG05 does not turn on, check to see if the pinhole on the rear may be blocked or covered. The Pressure transducer lies below this pinhole. In order for the computer to function, this pinhole must not be covered or blocked in any way. If it does get blocked, remove debris carefully but NEVER insert a sharp object or direct a jet of water into the pinhole for fear of damaging the pressure transducer irrevocably.
  • Page 90 All digital depth monitoring devices need a calibration check from time to time. Due to the potential depth of operation of DG05 dive computers it is recommended that they be returned to the factory for service every 100 hours of diving.
  • Page 91 DG05. The spring and switch will then come out easily. Soak the switch and spring in white vinegar or contact cleaner, rinse with fresh water and dry off.
  • Page 92 To refit, place the cover on the DG05 and insert the clips until you hear a ‘click’. If you think you have damaged a clip you should change it.