Manual English

FCC ID: O9BARVAADV

Users Manual

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FCCID_512596

description of the unit ■ Top: A 1 On/Off strap switch Exclusive features of the ARVA Advanced: 2 Transmit/Receive switch (SOS / Search) • A powerful 457 kHz ±20 Hz transmitter with transmission level inde- pendent of battery power. 3 Directional arrows • In numerical (standard) mode, the search band width is 40 m. 4 Loudspeaker • Multiple victim indicator and automatic synchronisation on closest victim. 5 Receiver intensity/sensitivity adjustment (Advanced=analogue mode) • In Advanced (= analogue) mode, indication of a scale of progress and, ■ LCD screen in multiple victim situations, indication of estimated distances 6 Indicator showing simultaneous detection of multiple victims along field lines. 7 Initial search distance indicator • Auto-control of frequency adjustment and transmission level every 5 minutes. 8 Battery status/distance indicator • 16 bit processor with extremely fast analysis speed. 9 Battery status indicator 10 Indicator showing use of Advanced (=analogue) mode with sensitivity level (9=max. sensitivity, 1=min. sensitivity) switching the unit on ■ Underside: ■ Fasten the On/Off strap 1 11 Battery compartment cover ■ Auto-control: the direction diodes 3 light up from left to right, and 12 Reminder: Attachment of straps - Switching on - Switching to receive the LCD screen comes on. 3 beeps are emitted if the loudspeaker is in working mode - Simulation of initial search by one or more rescuers 1 - Secon- order. dary search 2 - Final search (last cross) 3 ■ Check your batteries using the battery life indicator scale levels 8 9 11 levels: 99,90, 80, 70, 60, 50, 40, 30, 20, 10, 0. ■ The LCS screen then goes off and the central diode 3 flashes to indicate that the unit is in transmit mode. using the arvaA ■ Check Transmit/Receive functions before setting out. The per- son checking the unit puts his ARVA in transmit mode and all the other members of The ARVA ADVANCED has two operating modes: the group check that their ARVAs detect the signal properly in receive mode . The ■ Standard (numerical), involving use of the right and left directional operation is to be repeated in the opposite direction so that ALL the ARVA units in arrows. The device automatically locks on to the closest victim. Follow the indi- the group are checked in both transmit and receive modes. cations given in the form of figures and the direction shown by the red diode. If Possible anomalies... pictogram 6 lights up, the device has detected multiple victims. The ARVA ADVANCED performs a self-test every 5 minutes to check the state of the batteries, frequency setting, transmission power, etc. ■ Advanced (analogue with numerical aids), in which receiver sen- If the unit detects an anomaly, a 5-second beep is emitted, sitivity is adjusted with the + and - buttons. In analogue mode, the Advanced 3 times, separated by 5 minute intervals. This means one of two things: symbol is displayed on the screen with a sensitivity level value (1,2,3,4,5,6,7,8 • The battery charge has dropped to 20% (the unit can still transmit for 48 hours or 9). 9 corresponds to greatest sensitivity (distant search) and 1 to lowest or search for half an hour). After the 5-second beeps, 20% will stay displayed on the LCD screen to remind you to change the batteries as soon as possible. sensitivity (close search). In this mode, the device shows all the signals received. • Technical problems connected with transmission or programming: after the If there are multiple victims, it indicates the estimated distances to each one. 5-second beeps, the LCD screen displays Er (= Error). Do not set out with any unit displaying this message. installing batteries information for your own safety The ARVA ADVANCED operates exclusively with four standard LR03 alkaline batte- Whenever you leave marked-out ski runs or trails, you are in an area where there are ries. Open the battery compartment cover 11 with a screwdriver or coin. The four certain risks, particularly of avalanches. When moving around in the mountains, you do so batteries should be of the same brand and be replaced at the same time. Insert at your own risk: • Before setting out, check the local weather with a reliable weather station or pro- the batteries carefully in the order shown inside the compartment. fessional mountain guides and carry the right equipment. In particular, take an ARVA N.B.: Do not store the unit at a temperature of less than 0°C to avoid damaging and carry a shovel and a probe. But remember, this equipment will not detect avalanches or the batteries. DO NOT USE rechargeable batteries. Remove the batteries if the unit provide complete protection and to be fully effective, you need to familiarise yourself with is not used for any length of time. the use of the ARVA beforehand! useful information: • Never go off on your own and do not follow any trail you happen to see: they are no guarantee of safety. If there is any doubt about the stability of a slope you Move forward SLOWLY to avoid going too hastily in the wrong direction. The entire surface have to cross, YOU MUST leave a good distance between one another or better, cross it one of the avalanche must be investigated. When searching for a victim or testing the unit, stay by one. Keep a good eye on one another. away from electrical equipment (high-voltage power lines, radios, mobile phones, etc.) or • Finally, it is best to give up if you are not sure! Be careful: snow conditions change, impose radio silence (these are just a few examples). This is applicable when using any and with them the risk of avalanches. Get to know about avalanches. In France, a free cata- ARVA-type transmitter-receiver. logue and documentation can be obtained from ANENA (Association Nationale pour l’Etude The distance indicator indicates progress along a field line and not a distance in metres. de la Neige et des Avalanches, - tel. 04 76 51 39 39 / www.anena.org).

english Simply press simultaneously on the + and - buttons for 3 seconds to flip from Standard (nume- We shall now take a look at the two main modes and study an example of a search in the case of multiple rical) mode to Advanced (analogue) mode (Advanced logo and sensitivity level are displayed on the victims. The cases presented are «typical» ones. With training and experience, the user can change from LCD screen). Repeat this operation to return to numerical mode (the logo and sensitivity level Standard (numerical) mode to Advanced (analogue) mode depending on how familiar he is with the device and disappear from the LCD screen). This can be done at any time, even if rescue workers have the situation in which he finds himself. begun their search in Standard (numerical) mode. Case of a single victim Ä D standard (nu- • Continue until you pick up a first clear signal (directional arrows and distance indicator light the opposite direction. • Always try to make sure that the cen- always pointing the ARVA in the same position. merical) mode up) tral diode is lit. Sweep the unit gently in the ■ Cross technique: The ARVA must be moved ■ Primary search (approach phase) (cf D1) N.B: If the ARVA has already picked up a signal it directly in which the arrows light up. This will ena- as closely as possible to the snow, in parallel • Pull 2 SEARCH.- The device is automatically in will go directly to the secondary search. ble you to cover the shortest possible distance be- straight lines. Determine the point along the line completely automatic numerical mode. The LCD ■ Secondary search (locating phase) (cf D2). fore reaching the victim. Continue moving forward where the distance indicator displays the smallest screen displays the arrow diagram continuously This phase starts when the victim’s signal has until the distance indicator displays 3.0. number and the beeps are emitted very close until you pick up a signal from the victim. been picked up. ■ Final search (detection phase) (cf D3) together or continuously. From that point, move • Move backwards and forwards across the • The ARVA gives you a distance indication on At this point, with the arrow lit up, lower the ARVA perpendicularly and repeat the operation. The avalanche as shown in diagram B if you are the the LCD screen and one of the directional arrows unit as close as possible to the snow, pointing it in point at which the maximum signal is obtained is only rescuer or diagram C if there are several lights up. the same direction and keeping it horizontal. The vertically above the transmitter. If necessary, re- rescuers. beeps become faster and the distance indicator peat the operation once or twice to obtain a more • As soon as one of the directional arrows lights precise position. However, it is not necessary to • Hold the ARVA horizontally, pointing it up, point your ARVA in such a way that the central keeps decreasing. Keep moving forwards as long downwards (cf. photo), and sweeping it slowly as the number decreases. If it starts to increase, determine an extremely precise location using the diode lights up and head in that direction. ARVA. In fact, it is usually faster to start searching from left to right and right to left (making an return to the point where it is smallest and locate If the numbers decrease, you are mo- the victim using the cross technique, with a probe as soon as the likely location has angle up to 180°) ving closer to the victim. If not, go in been determined to within about 50 cm. of help. The initial search is over when a clear tion, in which case it will diminish. Once again, where the ARVA is emitting the loudest beep). E advanced (ana- signal is obtained. find the point where the beep is loudest, as pre- When the sensitivity is down to 2 or 1, the secon- logue) mode ■ Secondary search (cross or directional viously. Continue until the sensitivity is positioned dary search is finished. Diagrams E1 and E2. search) There are two possibilities: on one of the two last levels (minimum sensitivity, ■ Final search When the ARVA is switched to advanced mode, • Cross technique Diagram E1: and therefore minimum search distance). You are very close to the victim when the sensiti- its sensitivity is maximum (level 9). However, the As you move forward, keep the ARVA in the same • Directional method Diagram E2: vity is down to 2 or 1 (the actual level depends on Advanced symbol flashes if the sensitivity level position. It must be moved parallel to itself. When To determine the direction to follow, sweep the the depth at which the victim is buried). The cross is to be reduced. Decrease the sensitivity with the first signal is obtained, keep moving in a ARVA from left to right over 180°, holding it technique should then be used (see opposite). Re- the - button until the symbol stops flashing. straight line. The beep becomes louder and the horizontally. The stronger the signal, the louder member that in this case the distance indication When the symbol stops flashing, you can use the distance indicator decreases. Once the maximum the beep will be (and the lower the distance in- is replaced by the intensity and frequency of the numbers, which give an estimation of the distance signal has been reached and starts to diminish, dicator). The right direction is the one in which beeps. The closer you get to the buried victim, the that still needs to be covered. return to the approximate point where it was the beep is the loudest. If the beep gets louder louder and faster the beeps are emitted. When the ■ Initial search strongest. Reduce the sensitivity to minimum in as you move forward, you are going in the right distance between the transmitter and receiver is Moving forward, turn the device in every direction order to detect the point where the beep will be direction. If it gets weaker, you are going in the very small, a single continuous beep is emitted. until the first audible signal is heard. If the signal loudest, and start moving in a line perpendicular wrong direction. Turn round, walk back a few me- is weak, continue to move in the same direction to the previous direction. You will soon realise if tres and check again to find the right direction. without changing the position of the device until you are moving in the right direction, as the signal As you advance, turn down the sound level with the sound is clearer and sufficiently distinct to be will quickly become louder, or in the wrong direc- the - button (so that it is easier to determine Situations with multiple victims ÄÄ... F N.B: This is one possible method for finding victims. The user may decide to stay in closest to you. Once you have found the first vic- tim (F3/v1), locate him using your snow probe ■ When you pick up the signal from the second victim, two estimated distances will be displayed When you have taken the number of steps indi- cated, switch to Standard (numerical) mode (F5). Advanced mode for the entire search and and mark the location on the LCD screen. To obtain a closer estimate, Make a SLOW sweep with the unit. The ARVA will adjust the sensitivity level with the + ■ Return to the point that you marked reduce the sensitivity until the victim’s signal is automatically lock on to the closest victim, i.e. the and - buttons to isolate signals from earlier and switch the ARVA to Advan- barely audible and focus on the higher figure (the second one. Repeat the standard mode search, different victims ced (Analogue) mode (F4): the unit will lower figure with a strong signal corresponds to as in the case of a single victim. If you return ■ Start with the initial search if necessary, in indicate the various signals it has picked up. the first victim v1 and the weaker signal to the towards the first victim, go back to the starting either Standard (numerical) mode or Advanced Several estimated distances are displayed, along distance of victim v2). Determine the direction to point (where you obtained the multiple victim (analogue) mode. with various levels of sound depending on how follow by sweeping the ARVA from right to left and signal) and try to find the direction for the second In the secondary search phase, if indicator 6 is close they are. attempting to reduce the distance of the higher victim in Advanced mode. lit, this means that the ARVA is picking up several N.B As soon as you switch to Advanced mode, the figure. Once you have found the right direction, N.B. In the case of multiple victims, it is advisable signals around you, mark the area with a unit will automatically revert to sensitivity level 9 move forward, taking the number of steps indi- to use an earphone to distinguish the various ski or pole (F2). In standard mode, the ARVA (maximum range). Use the - button to lower cated. One of the figures will increase and the signals more clearly. will automatically lock on to the unit emitting the the level and search for the second victim. other decrease, while at the same time one of the strongest signal, which is theoretically the victim signals will increase and the other decrease.


Document Created: 2004-09-29 12:31:00
Document Modified: 2004-09-29 12:31:00
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