VISO II Manual - L-and-B.dk
Contents
1. pas zB Press A N to toggle between TAS and SAS The active selection flashes Press Bl to save setting and enter the Set Current Year selector NOTE Jump data is continuously stored in both TAS and SAS Stored information may be displayed in either unit of measure ment by selecting the respective mode Recommendation When using the VISO II as a Speed Meter in a big way base it is recommended to set it to SAS SAS will show the same speed throughout the dive at the same body position whereas TAS will show a different speed throughout the dive the same body position different air density Below are some recommendations and numbers for SAS A good base speed should be 110 115 mph A high base speed should be 120 125 mph tendency to wobble when docking A slow base speed should be 100 105 mph jumpers start to go low See separate section on page 61 for more information about TAS and SAS Set Current Year S Alti Meter Speed Meter e offset Dive Type True current time Preset jum q ca za Dx elector Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set p counter Reset jump counter Turn the VISO II OFF e Padlock window Set Current Year Press 4 to increase year Press q to decrease year Press to save setting and enter the Set Current Date selec tor Set Curren2. The Air Filter is the white circular part mounted on the side of the unit If it becomes wet after a splash in the swoop pond then let the VISO II dry in a warm place for 48 hours Note The Air Filter must be replaced if jumping is resumed quickly or if the VISO II has been submerged into water Air Filter removal tooling kit is an accessory which can be purchased separately Resetting the VISO II Press a paperclip into the tiny hole on the rear side of the unit and release The unit restarts After battery replacement or resetting the battery system requires 2 minutes to calibrate itself before displaying the correct status While calibrating the battery icon toggles between full and low Note Reset the unit after battery replacement when troubleshooting and when verify ing software version number Battery Replacement Carefully remove screw from battery cover and remove batteries Install new batteries using the correct polarity Use only CR 2325 After battery replacement or resetting the battery system requires 2 minutes to calibrate itself before showing the correct status While calibrating the battery icon toggles between full and low Note Customer settings are not lost when removing batteries However the built in clock may need to be reset to the current time Battery Status LET Full capacity Symbol shows two black bars inside the battery icon d ol Half capacity S
3. still not in Jump Mode If the backlight is turned ON while the VISO II is in Jump Mode the backlight will remain ON until the unit goes out of Jump Mode Jump Mode see page 41 Zeroing the VISO II Explanation The VISO II continuously adjusts itself to the local elevation and displays 0 FT MT in the Altitude Speed area If the Altitude Speed area does not display 0 prior to jumping the unit has not yet adjusted itself to the local elevation and it must be manually zeroed To manually zero the unit either perform reset or turn the unit OFF and then ON Perform reset see page 56 Turn OFF the unit see page 37 Jump Mode Shortly after takeoff the VISO II switches to Jump Mode and displays the altitude or speed in the Altitude Speed area When the VISO II is set to Alti Meter the ALTI and Feet Meter icons are ON and it will display the altitude during climb during the freefall and under canopy When the VISO II is set to Speed Meter the SPEED Mph Kmh and TAS SAS icons are ON and it will display the speed during climb during the freefall and under canopy Daily Jump Counter Explanation The VISO II can display the number of jumps made on last date and on 9 other jump dates In the Main Window press and hold Bl for 2 seconds Unit displays number of jumps completed on last date Scroll using 4 and q to display number of jumps completed on other jump dates Maximum 10 dates are stored J
4. to save setting and enter the TAS SAS Selector 0 blank factory default parameters 1 SLO Slow 2 STU Student Dive Type 1 SLO Slow In SLO the exit fall rate and deployment calculation parameters are changed to fit very slow falling types of dives like wing suit dives etc Dive Type 2 STU Student In STU the descent rate parameters are changed to allow detection of short freefalls 2 sec True Airspeed TAS Skydiver s Airspeed SAS Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date e Set current time Preset jump counter Reset jump counter Turn the VISO II OFF Padlock window Explanation True Airspeed TAS and Skydiver s Airspeed SAS are two methods of calculating the airspeed of a moving flying falling object TAS is a term used in aviation It is the speed of an object relative to the surround ing air regardless of the altitude SAS is a new concept developed by LARSEN amp BRUSGAARD SAS is the speed of a skydiver calculated from measurements of air pressure and temperature and con verted to a fixed air pressure 875 3 mb and a fixed temperature 7 080C which corresponds to 4 000 feet ASL See separate section on page 61 for more information about TAS and SAS True Airspeed TAS Skydiver s Airspeed SAS
5. Larsen amp Brusgaard Advanced Electronic and Mechanical Engineering VISO II Manual LARSEN amp BRUSGAARD Mosevej 3 4070 Kirke Hyllinge Denmark Phone 45 4648 2480 Fax 45 4648 2490 E mail L and B L and B dk VISO II is a trademark of Larsen amp Brusgaard Denmark Larsen amp Brusgaard operates a policy of continuous development Therefore we reserve the right to make changes and improvements to any of the products described in this guide without prior notice CE WARNING FAILURE TO FOLLOW ALL WARNINGS INSTRUCTIONS AND REQUIRED PROCEDURES MAY RESULT IN SERIOUS INJURY AND DEATH Always ensure your altimeter is adjusted to zero prior to jumping to account for any changes in barometric pressure Altimeters may give erroneous readings if you are tumbling or the altimeter is in a burble wake such as when sit flying or sky surfing Chest mount altimeters are more vulnerable to this problem If you are in doubt about how this limitation affects your skydiving consult a licensed instructor DO NOT use this equipment unless you are on or have passed an approved skydiving course Use the VISO II at your own risk CONTENTS Introduction Description Display Main Window Alti Meter Mode Speed Meter Mode Road Map Customise the VISO II Settings Alti Meter Speed Meter Selector Feet Meter Selector Mph Kmh Selector Altitude Offset Dive Type Selector True Airspeed TAS Skydive
6. Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date e Set current time Preset jump counter Reset jump counter Turn the VISO II OFF Padlock window Feet Meter Press 4 or N to toggle between Feet Meter The active selection flashes Press Bl to save setting and enter the Mph Kmh selector Note Jump data is continuously stored in both feet and meter ALTI frre At any time stored information may be displayed in either unit of measurement by selecting the respective mode Mph Kmh Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFF e Padlock window Mph Kmh Press 4 or q to toggle between Mph Kmh The active selection flashes Press to save setting and enter Altitude Offset Note Jump data is continuously stored in both Mph and Kmh ALTI At any time stored information may be displayed in either unit of measurement by selecting the respective mode Altitude Offset Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump co
7. ack in reverse at 2x speed Press q four times to playback in reverse at 5x speed Press Bl to stop playback Press 4 or N to resume playback or press Bl to go to Playback Speed Versus Time Playback Speed Versus Time Playback altitude versus time Playback speed versus time Padlock Window Playback Speed Versus Time Scroll Time in profile Press 4 to playback the speed profile at 1 4 speed Press twice to playback in real time Press 4 three times to playback at 2x speed Press 4 four times to playback at 5x speed Pres M to playback the speed profile in reverse at 1 4 speed Press M twice to playback in reverse in real time Press M three times to playback in reverse at 2x speed Pres M four times to playback in reverse at 5x speed Press Bl to stop playback Press 4 or N to resume playback or press Bl to go to Padlock window Important Notice about Speed Recordings Experience has shown that when mounting the VISO II on the hand or belly different air pressures induced by hand or body movements may result in incorrect recordings of speeds For more information about using the VISO II as a Speed Meter see page Padlock Window Playback altitude versus time Playback speed versus time Padlock Window Padlock Window Press 4 or N to leave the Profile Area to return to the Main Window or press Bl to return to the Profile amp Area Air Filter Air filter The VISO II is water resistant
8. and switches to a screen configuration referred to as the Main Window This represents the starting point for all further actions and subsequent displays Main Window Explanation Alti Meter Displays The Main Window is the default window which displays current time battery status In Alti Meter mode the LCD may show 3 different displays depending on what and either Altitude or Speed altitude value is shown Alti Meter Mode 3 735 iF the attitude is below 1000 the altitude is displayed as x x x normal Altitude resolution is in 10 feet 5 meter incre When the VISO II is set to Alti Meter mode the T ments ALTI and Feet Meter icons are ON I LI LI The VISO II will display the altitude during climb ALTI FT in freefall and under canopy The date time information switches OFF during i3 35 dm If the altitude is 1000 9999 the altitude is displayed as freefall and under canopy rn rn ni tens of feet or meter Altitude resolution is in 10 feet 10 meter increments When preset press 4 to view the current date Ul LI ALTI TIME 13 E 43 35 din A ICU ALTI Tf the altitude is 10000 or higher the altitude is displayed as hundreds of feet or meter Altitude resolution is in 100 feet 100 meter increments Speed Meter Mode When the VISO II is set to Speed Meter mode the SPEED Feet Meter Mph Kmh and TAS SAS icons are ON The VISO II will display the climb rate s
9. ditional information displaying current date time time in profile when in Profile Area date time when in Logbook Area 4 Battery status Battery Power Level icon indicates the remaining battery capacity Altitude Speed Area 5 Main information displaying altitude when VISO II is set to Alti Meter mode speed when VISO II is set to Speed Meter mode detailed profile information when in Profile Area logbook information when in Logbook Area various setup information Status Area 6 True Airspeed TAS Skydiver s Airspeed SAS status 7 Mph Kmh status 8 OFF icon Used to manually power OFF the VISO II 9 Speed Meter indicator when VISO II is set to Speed Meter mode 10 Padlock icon Used to indicate and control entrance to ACCESS mode 11 Feet Meter status 12 Altimeter indicator when VISO II is set to Alti Meter mode Power ON The VISO II has been powered OFF prior to shipping from our factory To turn the power ON press and hold any key until the VISO II beeps then release the button Auto OFF The VISO II automatically switches OFF 14 hours after the last jump or 14 hours after the last pressing of any key whichever comes last The VISO II runs a self test and displays all icons It then displays the firmware version number together with a factory reference number A B 8 8 8 B dii nu LEE ACT frre SEED nd mm Ann n ba LALI E gt Main Window
10. ent
11. er s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFFe Padlock window Turn VISO II OFF Press 4 AND N at the same time and hold until the VISO II turns OFF Or press Bl to enter the Padlock window OFF We recommend that you switch OFF the VISO II when traveling on commercial flights and when driving in mountainous areas Note When switched OFF the VISO II cannot be used for jumping Customer settings are not lost when switched OFF To power the VISO II ON see page 12 Padlock Window Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFFe Padlock window Padlock Window Press 4 or N to leave the Setup Area and return to the Main Window Or press Bl to return to Alti Meter Speed Meter selector Backlight Setup Area Press and hold 4 for 2 seconds P CA GP V Backlight turns ON j j i j j gt lt Press and hold 4 for 2 seconds j I j i j I j j am mes Backlight turns OFF Note Backlight is specifically for night jumps Note If the backlight is turned ON while the VISO II is not in Jump Mode the backlight will automatically turn OFF after 30 minutes if
12. k to the Main Window if no button has been Turn the VISO II OFF pressed within 15 sec Padlock window ALL functions except Power ON can be performed ONLY when the VISO II is in ACCESS mode To enter the Setup Area To leave the Setup Area Perform ACCESS on Bl or N Then hold E gt 5 seconds Wait until the display times out or press amp repeatedly until the Padlock window shows Then press 4 or N to exit Performing ACCESS 1 Press Bi or q and release quickly The padlock icon turns ON and OFF Padlock Window 2 When the padlock icon turns ON again immediately press the same button and keep it pressed padlock turns OFF 3 When the padlock icon turns ON again release immediately A Alti Meter Speed Meter Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFF e Padlock window Alti Meter Speed Meter The VISO II can be set to function either as an Alti Meter or as a Speed Meter Press 4 or N to toggle between Alti Meter or Speed Meter mode The active selection flashes Press Bl to save setting and enter the Feet Meter selector Feet Meter Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter Mph Kmh when set to Speed Meter Altitude offset Dive
13. mbers them starting from the jump number that you preset here The counter can be used to keep track on the number of jumps and it can be reset at any time but time and date for the ast reset remains stored and cannot be erased Preset Jump Counter Press 4 to increase the jump counter Press q to decrease the jump counter Press Bl to save setting and enter the Reset Jump Counter selector Reset Jump Counter Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter e Turn the VISO II OFF Padlock window mimi Reset Jump Counter DATEL 067 tt Date Time forlastReset Press A AND q at the same time for more j then 10 seconds to reset the Jump Counter and delete the entire logbook l I Date and Time for the last reset is displayed EM together with the number of resets which have been made Press Wto enter the Turn VISO II OFF selector Note Date Time and the number of resets which have been made are stored and there is no way to clear it There is no way to restore the logbook information Turn VISO II OFF Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiv
14. n a rig Can be reset at any time but time and date for the last reset remains stored and cannot be erased 4 Daily Jump Counter Displays number of jumps completed on last date and or 9 other jump dates Features Digital Alti Meter or Speed Meter Electroluminescent backlight for night jumping Can remain ON for several hours Automatic calibration to local elevation LCD screen for easy and intuitive operation and information review Logbook with playback of altitude speed profile for the last jump Operational at sub zero temperatures Switches OFF automatically after 14 hours Software amp functions Stores up to 10 minutes of profile data from last jump Displays Alti Meter and Speed Meter details from exit to landing Description Records and displays jump information about the last 200 jumps including exit 1 4 UP button altitude deployment altitude freefall time max speed in freefall and max speed under canopy 2 Middle button Choice of readings in feet or meter and mph or kmh 3 N Down button If you have any questions please call fax or e mail us 4 LCD display LARSEN amp BRUSGAARD 5 Reset button on rear side Phone 45 4648 2480 Fax 45 4648 2490 E mail L and B L and B dk Date Time Area Altitude Speed Area Status Area The display has the following characteristics by default normal usage Date Time Area 1 Date icon 2 Time icon 3 Ad
15. normally ended Conclusion Using SAS skydivers in any body position can express their vertical speed by a number SAS This number remains virtually constant regardless of altitude with little or no variance due to temperature differences and can be compared with the airspeeds of other skydivers This means that regardless of the elevation of the DZ you are jumping at SKYDIVER S AIRSPEED SAS will be the same for the same body position SAS is very useful when doing big formation skydiving If using TAS it will seem like the base is slowing down the fall rate during the entire skydive For information about using the VISO II as a Speed Meter see page 16 SPECIFICATIONS Mechanical Dimensions Weight LCD area Logbook Maximum jumps Logbook information Tolerances 81 x 69 x 23 mm 3 1 8 x 2 34 x 3 4 90 g 3 9 oz 5 5 cm 0 9 inch 200 Exit altitude Deployment altitude Freefall time Max speed in freefall Max speed under canopy Exit altitude 1 2 Deployment altitude 1 2 Freefall time 1 sec Speed TAS SAS 3 mph 5 kmh Profile Storage Continued storage of last jump Maximum logging time Sampling rate Maximum logging altitude Factory default settings Mode Feet Meter Mph Kmh TAS SAS Type of Dive Date Time 10 minutes 4 sec 39 999 feet 12 191 m Alti Meter Feet Mph TAS 0 2009 01 01 year month date 12 00 00 hou
16. ow Deployment Altitude Deployment Jump Number Symbol 4 L a Luc E iL Deployment altitude Freefall time Max speed in freefall e Max speed under Press A or N to scroll in Deployment Altitudes Press Bl to go to Freefall Time information Note The LCD may show 3 different displays depend ing on what altitude value is shown See page 15 Freefall Time Jump number Exit altitude Deployment altitude Freefall time Max speed in freefall e Max speed under canopy Padlock window Freefall Time Time Jump Number Press 4 or q to scroll in Freefall Times Press Bl to go to Max Speed in Freefall information Max Speed in Freefall Jump number Exit altitude Deployment altitude Freefall time Max speed in freefall e Max speed under canopy Padlock window Max Speed in Freefall Max Freefall Jump Number Speed Symbol J ILU Ul SPEED P T TAS SAS Press 4 or N to scroll in Max Speed in Freefall Press Bl to go to Max Speed under Canopy information Note In the lower right hand corner of the display a T or an S will indicate whether the VISO II is set to TAS or SAS For more information about TAS and SAS see page 61 Max Speed under Canopy Jump number Exit altitude Deployment altitude Freefall time Max speed in freefall e Max speed under canopy Padlock window Max S
17. peed during climb in freefall and under canopy The date time information switches OFF during freefall and under canopy Speed Meter Display during the freefall Speed resolution is in 1 Mph 1 Kmh increments Important Notice about Speed Recordings Experience has shown that when mounting the VISO II on the hand or belly dif ferent air pressures induced by hand or body movements may result in incorrect recordings of speeds Road Map It is recommended that you first familiarize yourself with the VISO II ROAD MAP which is a very helpful tool when using the VISO II for the first time The ROAD MAP comprises four areas Backlight Setup Area see page 39 Profile Area see page 51 Setup Area see page 19 Logbook Area see page 43 VISO II Settings The VISO II can be customised to your personal settings Your settings will be stored and recalled also after replacing batteries When you first get the VISO II we recom mend you to go through the SETUP Selector to customise the VISO II settings SETUP Selector In the Setup Area the following options can be selected Alti Meter Speed Meter Feet Meter when set to Alti Meter Mph Kmh when set to Speed Meter Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter General note Reset jump counter The VISO II goes out of ACCESS and bac
18. peed under Canopy Max Freefall Jump Number Speed Symbol TAS SAS Press 4 or q to scroll in Max Speed under Canopy Press Bl to go to the Padlock window Padlock Window Jump number Exit altitude Deployment altitude Freefall time Max speed in freefall Max speed under canopy Padlock window Padlock Window Press A or q to leave the Logbook Area and return to the Main Window or press Bl to return to Log book Area Profile Area Explanation The Profile Area features playback of altitude speed profile for the last jump Note Speed information is available in playback mode after freefall has lasted w6 sec Perform ACCESS on amp to enter the Profile Area Performing ACCESS see page 20 In the Profile Area press Bl to display B Altitude playback information B Padlock window Bl Speed playback information Display when Profile Area is empty no jumps stored Playback Altitude Versus Time Playback altitude versus time Playback speed versus time Padlock Window Playback Altitude Versus Time Time in profile Press 4 to playback the altitude profile at 1 4 speed Press twice to playback in real time Press 4 three times to playback at 2x speed Press 4 four times to playback at 5x speed Press q to playback the altitude profile in reverse at 1 4 speed Press N twice to playback in reverse in real time Press N three times to playb
19. r s Airspeed SAS Set Current Year Selector Set Current Date Selector Set Current Time Selector Preset Jump Counter Selector Reset Jump Counter Selector Turn VISO II OFF Selector Selector Backlight Setup Area Backlight ON OFF Zeroing the VISO II Jump Mode Daily Jump Counter Jump Data Logbook Area Jump Number Exit Altitude Deployment Altitude Freefall Time Max Speed in Freefall Max Speed under Canopy Profile Area Playback Altitude Versus Time Playback Speed Versus Time Air Filter Resetting the VISO II Battery Replacement Battery Status Firmware Version Trouble shooting Appendix TAS and SAS SPECIFICATIONS Mechanical Logbook Profile Storage Factory default settings Introduction Congratulations on purchasing your new VISO II The VISO II design is based upon the latest findings in microcomputer technology and freefall parameters Please read ALL of the instructions prior to actual skydiving use The VISO II comprises three instruments 1 Digital Alti Meter Stores detailed altitude information about the last jump for later review 2 Digital Speed Meter Stores detailed speed information about the last jump for later review 3 Jump Counter Electronic logbook storing and displaying information about the last 200 jumps Can be used as an aid to track the amount of jumps performed o
20. rs minutes seconds Other Present altitude Operating altitude Clock Operating Temperature Range Altitude Offset Range Daily Jump Counter Battery type Battery Life Time at normal use L amp B part no NATO Stock no 10 ft 5 meters 0 to 40 000 ft 0 to 12 191 m 4 min month 30C to 60C 22F to 140F 9900 ft to 9900 ft 3000 meter to 3000 meter Max 10 dates 2 x CR 2325 approximately 2 years 205442 6605 22 613 6341 Warranty The following conditions apply to the VISO II warranty If within 12 months of the purchase of VISO II a defect or damage is identified by faulty manufacture LARSEN amp BRUSGAARD will repair the unit at no cost to the end user To make a claim under this warranty send the unit to an authorized dealer or directly to LARSEN amp BRUSGAARD together with the dated purchase invoice or receipt The warranty becomes void if damage is caused by external circumstances or if the unit has been serviced or repaired by third parties unauthorized by our national agents or LARSEN amp BRUSGAARD All further claims especially for defects after skydiving accidents are excluded LARSEN amp BRUSGAARD has no obligation to honor any extension of warranty granted by any national agent Waiver of Liability The buyer and user of the VISO II indemnify the manufacturer and vendor from any liability for damage incurred before during and after skydiving with the instrum
21. t Date Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFF Padlock window Set Current Date Press 4 to increase date Press q to decrease date Press to save setting and enter the Set Current Time selec tor Note Date format is MM DD Set Current Time Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFF Padlock window mE 13 35 Set Current Time Press 4 to increase time Press N to decrease time Press gl to save setting and enter the Preset Jump Counter selec tor Note Time format is HH MM and in 24 hour format Preset Jump Counter Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFF Padlock window Explanation The VISO II can store up to 200 jumps in the logbook and nu
22. ump Data After landing the jump data can be displayed on the LCD by accessing the Logbook Area and Profile Area Logbook Area Explanation The logbook can store up to 200 jumps and be reset at any time It is not possible to delete a single jump Perform ACCESS on N to enter the Logbook Area Performing ACCESS see page 20 In the Logbook Area press Bl to display B Jump number Max speed under canopy B Exit altitude B Padlock window B Deployment altitude B Freefall time Display when logbook is empty B Max speed in freefall Jump Number Exit Altitude Jump number Exit altitude Deployment altitude Freefall time Max speed in freefall e Max speed under Jump number Exit altitude Deployment altitude Freefall time Max speed in freefall e Max speed canopy Padlock window under canopy Padlock window Jump Number Exit Altitude Press 4 or q to scroll in the jumps TME 23 207 Toggles bet Exit Jump Number a7 40 Date Time m Date Time information will switch Symbol Press A or N to scroll in Exit Altitudes Il accordingly in the Date Time Area Press Bl to go to Deployment Altitude information pu Jump Number Press Bl to go to Exit Altitude DT g o I information e GER SUR Note The LCD may show 3 different displays depend f j i ing on what altitude value is shown See page 15 e L LLLI Deployment Altitude Jump number Exit altitude canopy Padlock wind
23. unter Turn the VISO II OFF e Padlock window Explanation If the DZ landing elevation differs from that of the aircraft take off elevation offset the VISO II prior to entering the aircraft as follows Altitude Offset Press and hold 4 r to offset the current altitude Press to save setting and enter the Dive Type selector Note When performing altitude offset the VISO II enters Jump Mode and the altitude offset will be retained for 14 hours if no jump is made After 14 hours the VISO II recalibrates to the field elevation where it is currently located The selected Offset Altitude remains displayed in the Main Window after VISO II goes out of ACCESS When offsetting to a negative altitude the display will flash between minus and the selected negative altitude The altitude offset is not retained when the VISO II is powered OFF Dive Type Selector Alti Meter Speed Meter Feet Meter when set to Alti Meter e Mph Kmh when set to Speed Meter e Altitude offset Dive Type True Airspeed TAS Skydiver s Airspeed SAS Set current year Set current date Set current time Preset jump counter Reset jump counter Turn the VISO II OFF e Padlock window Explanation The Dive Type mode can be used to change parameters when the VISO II detects freefall exit and canopy deployment Dive Type Press 4 to scroll forward through the dive type list Press NY to scroll backward through the dive type list Press
24. ymbol shows one black bar inside the battery icon d Low capacity Symbol shows no black bars just an empty battery icon Batteries should be replaced as soon as possible The Low bat flashes once every 15 sec Caution Do not make night jumps at sub zero temperatures when bat shows low capacity d Empty batteries The battery icon flashes Replace batteries immediately Firmware Version 137 ica Factory reference number Firmware Version Perform reset or turn the unit OFF and then ON The VISO II runs a self test and displays all icons The unit then displays the firmware version together with a factory reference number Performing reset see page 56 Trouble shooting When the VISO II detects a fault an error ERR symbol and trouble shooting numbers 2 to 5 and 100 are displayed in the upper part of the screen At the same time the unit beeps every minute The ERR trouble shooting codes are as follows ERR 2 transducer defective ERR 3 transducer out of range ERR 4 crystal defective ERR 5 comm error to flash ERR 100 flash defective Remedy Perform reset Performing reset see page 56 If the unit still does not function correctly even after replacing the batteries and performing reset perform following Press and hold El while resetting The VISO II resets to factory settings and sounds three beeps Note All logbook data are lost If the unit is still faulty please contact
25. your local dealer or LARSEN amp BRUSGAARD APPENDIX TAS and SAS Definitions True Airspeed TAS and Skydiver s Airspeed SAS are two methods of calculating the airspeed of a moving flying falling object TAS is a term used in aviation It is the speed of an object relative to the surrounding air regardless of the altitude SAS is a new concept developed by LARSEN amp BRUSGAARD SAS is the speed of a skydiver calculated from measurements of air pressure and temperature and converted to a fixed air pressure 875 3 mb and a fixed tempera ture 7 080C which corresponds to 4 000 feet ASL TAS A skydiver s True Airspeed TAS relative to the ground changes as a function of the altitude air pressure and temperature which makes it difficult to compare fall rates Example A skydiver in a fixed freefall position who has a terminal fall rate of 62 meters sec at 10 000 feet will have a terminal fall rate of 50 meters sec at 3 000 feet It will be seen that the difference in altitude air pressure makes it difficult to compare the fall rates when measured using TAS SAS The SAS formula calculates airspeed using the same metrics used with TAS as though the complete skydive had been performed at a fixed air pressure and a fixed temperature which corresponds to 4 000 feet ASL 4 000 feet is chosen as the refer ence altitude by LARSEN amp BRUSGAARD since this is the average altitude at which the working time of a skydive is
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