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Section 2: Diving with the Monitor 3 Air

29

Diving at Altitude

The Monitor 3 Air measures the atmospheric pressure
even while in Sleep Mode. If the computer detects a higher
altitude, it automatically switches on and displays the
adaptation time. This is the time after which your body is
considered desaturated and stable at the given altitude.

Altitude sectors

Atmospheric pressure is influenced by altitude and
weather. The Monitor 3 Air is interested only in the actual
atmospheric pressure value for use in decompression
calculations. However, it indicates the altitude sector
which corresponds most closely with this pressure for
normal weather conditions. The altitude sectors and their
corresponding altitude is illustrated below.

switches at
approx 13.12 psi

switches at
approx 11.81 psi

switches at
approx 10.51 psi

switches at
approx 8.85 psi

Altitude adaptation
time display
Adt=Adapt

Содержание 150-2421 - Flatfoto 1.3-megapixel Digital Camera

Страница 1: ...Owner s Manual...

Страница 2: ...ny other source you are considered the second owner in which case the warranty is void This warranty only applies to non commercial use Warranty does not apply to commercial military or rental use The...

Страница 3: ...ssume responsibility for those risks do not use the Monitor 3 Air The Monitor 3 Air is a sophisticated decompression tool to assist a trained and certified SCUBA diver in making decisions concerning d...

Страница 4: ...other diving computer or table can actually monitor the physical changes that occur in your body as you dive Each diver varies in his or her susceptibil ity to decompression sickness and that suscepti...

Страница 5: ...the computer fails ascend to surface no faster than 60 ft min 18 m min 12 You MUST be familiar with all signs and symptoms of DCS before using the Monitor 3 Air Seek IMMEDIATE treatment for decompress...

Страница 6: ...e Monitor 3 Air Without the Transmitter 12 Checking the Battery Power 12 Diving with the Monitor 3 Air 13 Preparation for the Dive 14 Functions During the Dive 16 Current Depth 16 Dive time 17 Maximum...

Страница 7: ...iting Memory Mode 39 Pre Dive Planning Mode 41 Overview 42 Activation from Ready Mode 42 Activation from Surface Mode 44 Planning a Decompression Dive 46 Care Maintenance 49 Overview 50 Care Before th...

Страница 8: ......

Страница 9: ...ns the technical specifications and a description of the algorithm What is a Dive Computer DEFINITION OF COMPARTMENTS A dive computer is an instrument that mathematically simulates the absorption and...

Страница 10: ...sensors attached to your body it doesn t know if you are tired dehydrated overweight or out of shape For this reason U S Divers recommends that you never push the no decompression limits of the compu...

Страница 11: ...hows total dive time total ascent time no stop time and while in decompression decompression stop time To the far right of the screen is the Air Zone The Air Zone shows current cylinder pressure a gra...

Страница 12: ...Introduction 5 Monitor 3 Air display zones and contact letter designations...

Страница 13: ...ncy radio wave to the wrist unit One of the unique features of the transmitter is that it sends along a special code each time it transmits pressure information The computer listens to the code and if...

Страница 14: ...In this section Attaching the Transmitter to the Regulator Pairing the Wrist Unit with the Transmitter Using the Monitor 3 Air Without the Transmitter Checking battery power...

Страница 15: ...dealer and have the O ring inspected and or replaced Then have the U S Divers dealer attach the transmitter to your regulator STEP 1 If your regulator is attached to a charged SCUBA cylinder turn the...

Страница 16: ...e first paired Once paired they will continue to work together until such time the transmitter is introduced to another wrist unit When the transmitter sends a packet of data to the wrist unit it send...

Страница 17: ...he transmitter Turn on the cylinder valve Within six seconds the message PAIr will appear flashing in the upper tank pressure display STEP 3 STEP 4 Touch contacts A and D as soon as PAIr appears withi...

Страница 18: ...st cylinder pressure reading will be displayed within 15 seconds STEP 5 If the procedure is not successful a FAIL message will appear If this happens close the cylinder valve purge all air from the re...

Страница 19: ...the left side of the regulator Using the Monitor 3 Air Without the Transmitter If for any reason you are unable to use the transmitter you can still use the wrist unit as a dive computer It will provi...

Страница 20: ...In this section Preparation for the dive Functions during the dive Functions at the surface Summary of Messages and Alarms...

Страница 21: ...l not perform properly If you rely on the computer in this condition to plan your dive you risk serious injury or death Switch on the Monitor 3 Air by touching contacts A and D Check the display to ma...

Страница 22: ...The cylinder pressure reading appears about 10 seconds after turning on the valve The Monitor 3 Air is now in Ready Mode The computer switches to Dive Mode after entering the water and submerging belo...

Страница 23: ...is two feet or less the depth display is replaced with three dashes Note Depth measurement is based on freshwater When diving is salt water the depth displayed will be slightly greater than the actua...

Страница 24: ...right of the number flashes in one second intervals Maximum dive time displayed is 199 minutes Note If a dive lasts longer than 199 minutes dive time will roll over to 0 minutes Maximum depth display...

Страница 25: ...d at all times Exceeding the prescribed ascent rate can lead to microbubble formation which can lead to serious injury or death due to decompressionsickness If the ascent rate is 100 or more the arrow...

Страница 26: ...ression time and total ascent time At shallow depth a slow ascent may shorten decompression time because the tissues are desaturating during a shallow slow ascent Excessive rates of longer periods are...

Страница 27: ...are inch psi in 1 psi increments Antenna Symbol If during the dive there is an interruption in the transmission of air data to the Monitor 3 Air for more than 30 seconds the antenna symbol will appear...

Страница 28: ...the 30 minute level you have between 30 and 45 minutes of air time Graphic Air Time Remaining Display Digital Air Time Remaining ATR Digital air time remaining gives you the amount of time displayed i...

Страница 29: ...acoustic attention signal sounds at the ATR digits start to flash WARNING When the last minute has passed ATR 0 an acoustic alarm is activated every 4 seconds The digital ATR and graphical ATR start t...

Страница 30: ...G If you ascend shallower than the required decompression stop depth the DECO arrow will start flashing and an acoustic alarm will sound Due to the formation of microbubbles decompression obligation c...

Страница 31: ...orkload High workloads and different ascent rates may change the total ascent time Total Ascent Time Display SOS Mode If you ignore your decompression stop and return to the surface shallower than 4 f...

Страница 32: ...If you stay at the surface longer than 5 minutes the dive is entered into the logbook and the Monitor 3 Air switches into surface mode Surface Mode Note Surface mode will stay visible for 3 minutes Af...

Страница 33: ...n ascent to altitude in a commercial jetliner altitude up to 8000 ft 2400 m 2 Divers who plan to make daily multiple dives for several days or make dives that require decompres sion stops should take...

Страница 34: ...kes to completely off gas any residual nitrogen in your system Desaturation time is displayed in hours and minutes Desaturation time display Surface Interval Time Surface interval time is shown immedi...

Страница 35: ...reduce the risk of decompression sickness If the Monitor 3 Air calculates that the forma tion of microbubbles may occur during the surface interval it will advise the diver to extend the surface inter...

Страница 36: ...titude sectors Atmospheric pressure is influenced by altitude and weather The Monitor 3 Air is interested only in the actual atmospheric pressure value for use in decompression calculations However it...

Страница 37: ...n even at higher altitudes the 10 foot decompression stop is divided into a 13 foot stop and 7 foot stop Therefore the pre scribed decompression stops in order are 7 ft 13 ft 20 ft 30 ft 80 ft Exceedi...

Страница 38: ...or flashing figures In addition two short beeps can be heard in intervals of 4 seconds in two different frequencies Attention messages appear in the following situations Altitude dive During a change...

Страница 39: ...no longer be displayed High air consumption When there is a significant increase in the air consump tion the warning icon appears accompanied by two beeps Relax and breathe more slowly Microbubble wa...

Страница 40: ...upply may be insufficient to safely reach the surface Start your ascent immediately Alarms Alarms are communicated to you by symbols letters or flashing icons In addition an acoustic warning sounds du...

Страница 41: ...ng Surface Mode or Ready Mode bAt flashes in the maximum depth position This indicates battery charge is nearing 0 Low transmitter battery While diving the bAt message alternates with the cylinder pre...

Страница 42: ...In this section Activating Memory Mode Scrolling through logged dives...

Страница 43: ...or each dive Downloading the Memory to a PC With the use of a separate interface kit the Monitor 3 Air has the ability to download the details of the last 37 dives to an IBM compatible computer In add...

Страница 44: ...Section 3 Memory Mode 37...

Страница 45: ...from Surface Mode the current surface interval also appears STEP 2 Touch Contacts A D to confirm the selection After a few moments the information for the most recent logged dive appears Note If you...

Страница 46: ...uch contacts A B Scroll back through logged dives Note The absence of a previous surface interval means that the logged dive was the first dive after a complete desaturation Exiting Memory Mode To exi...

Страница 47: ...Section 3 Memory Mode 40...

Страница 48: ...In this section Activation from Ready Mode Activation from Surface Mode Planning a Decompression Dive...

Страница 49: ...ence of an on board recompression chamber should attempt to plan a decompression dive Those who attempt decompression dives must be willing to accept an increased risk of decompression sickness You ca...

Страница 50: ...start scrolling through the available time depth combinations STEP 2 The Monitor scrolls from 50 to 200 feet in 10 foot increments For each depth the computer gives the maximum allowable no stop time...

Страница 51: ...STEP 1 From Surface Mode touch contacts A B The computer will emit one beep and the Dive Plan Icon will appear in the mode zone STEP 2 Touch contacts A D to confirm the selection The words Add and Int...

Страница 52: ...ments for the first 6 hours 30 minute increments from 6 to 12 hours and 1 hour increments after that STEP 4 After adding the desired amount of surface interval time touch contacts A D The word run fla...

Страница 53: ...ired depth touch contacts A D The word Add appears in the depth zone the flashing dive time is now one minute more than the allowable no stop time and all decompression information is displayed includ...

Страница 54: ...h contacts A D If you want to return to Surface Mode or Ready Mode touch contacts A D for about three seconds WARNING If two or more divers using computers are planning a dive planning for all divers...

Страница 55: ...Section 4 Pre Dive Planning Mode 48...

Страница 56: ......

Страница 57: ...The Monitor 3 Air s plastic housing is made of a shock resistant resin This housing protects the Monitor 3 Air from the normal bumps that occur when diving However the computer cannot withstand the i...

Страница 58: ...uter from the bath rinse thoroughly with fresh water Towel dry the computer before final storage Place the Monitor 3 Air in a cool dry and protective case to transport The transmitter should be rinsed...

Страница 59: ...trunk After the dive cover the computer and keep it out of the sun If inadvertently left in direct view of the sun the LCD may become totally black If this occurs immediately immerse the Monitor 3 Ai...

Страница 60: ......

Страница 61: ...transmission Transmitter Connection 7 16 UNF regulator HP port Dive Log Mode Stores last 37 dives in memory After 37 dives adds latest dive to memory deletes oldest dive 37 most recent dives are retai...

Страница 62: ...nges in saturation the time that must be spent at the surface prior to flying can be considerably lengthened depending on the depth time and temperature of a dive as well as the diver s workload durin...

Страница 63: ...will help prevent the formation of microbubbles in the arterial circulation and minimizes formation of microbubbles in the venous circulation after the dive Summary With its new decompression model t...

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