It could save you....
More than you think....
08.17.08 EN
USER MANUAL
m2 multi AAD
2
CONTENTS
CONTENTS
WARNING
1. Introduction
1.1. General description
1.2. Operating principle
2.
m2 multi description
2.1. Construction
2.2. Processing unit
2.3. Control Unit
2.4. Cutter
3. Proles
3.1. Description
3.2. List of proles
3.2.1. STUDENT (Stu)
3.2.2. INTERMEDIATE (Int)
3.2.3. PROFESSIONAL (Pro)
3.2.4. CANOPY PILOTING (CPi)
3.2.5. TANDEM (TAn)
3.3. Prole charts
3.4. Prole parameters
3.5. AdJUSt description and use
4. Operating mode
4.1. Description
4.2. List of modes
4.2.1. BASIC mode
4.2.2. OFFSEt HI mode
4.2.3. OFFSEt LO mode
4.3. Examples of using modes
4.3.1. BASIC mode - example
4.3.2. OFFSEt HI mode - setting and example
4.3.2.a. OFFSEt HI mode - sequence
4.3.3. OFFSEt LO mode - setting and example
4.3.3.a. OFFSEt LO mode - sequence
5. Controls
5.1. Control basics
5.2. Switching the device on and o
5.2.1. Switch on sequence
5.2.2. Switch o sequence
5.3. Changing the prole
5.3.1. Prole changes sequence
5.4. INFO
5.4.1. Access INFO with device ON
5.4.2. Access INFO with device OFF
5.4.3. Meaning of individual letters
5.4.4. Gravity index
5.5. Error messages
5.5.1. List of errors and their numbers
6. SEtUP
6.1. SCALE setting description
6.1.1. SCALE setting sequence
6.2. ProFilE setting descrption
6.2.1. ProFilE setting sequence
6.3. AdJUSt setting description
6.3.1. AdJUSt settings sequence
7. Important limits and limit modes
7.1. Use in pressurized aircraft
7.2. Altitude lock
7.3. Water jumps
7.4. Instructions for the pilot
7.5. Important operation principles
8. Installation
8.1. Installation procedure
8.2. Securing closing loop
9. Maintenance
9.1. Cutter replacement
9.2. Filter replacement
9.3. Battery
9.4. Annual inspection
9.4.1. Inspection procedure
10. Technical data
10.1. Basic technical data
10.2. Device service life
10.3. Cutter service life
10.4. Warranty
11. Disclaimer
12. Appendices
12.1. X-RAY Card
3
WARNING
Skydiving is a dangerous activity that can result in serious or even fatal injury. To reduce these risks, it is
necessary to have training and experience. Using the m
2
multi automatic activation device when skydiving can
signicantly reduce these risks. Never rely solely on the m
2
multi, since it is not the primary tool for opening
of your parachute. Keep in mind that the m
2
multi is an electronic device and, just like any other equipment, it
can fail. In some collisions the m
2
multi may even cause death. Read the instructions thoroughly before using
the device. The device is not designed for PARAGLIDING, PARASCENDING, PARASAILING and BASE JUMPING.
Even a awless operation of the m
2
multi cannot ensure proper operation of the parachute kit, i.e. the harness
with container, reserve parachute and other equipment. The m
2
multi device is only responsible for cutting the
reserve parachute closing loop that is properly pulled through the cutter!!!
The specied activation altitude (AGL) of the m
2
multi is based on a skydiver in a stable body position. If the
skydiver is in another orientation, or unstable, this may result in pressure changes that cause the m
2
multi to
activate above the specied altitude (AGL). To avoid premature activation of the m
2
multi the skydiver should
be in a stable body position and comply with the recommended altitudes (AGL) for main canopy deployment.
In addition, the skydiver should be aware that it is possible to exceed the specied limits under canopy and
cause the m2 multi to activate. The Gravity Index is designed to show you how close you are to activation of the
device under canopy, and we recommend that users become familiar with this feature (see chapter 5.4.3.).
4
1. Introduction
1.1. General description
Thank you for purchasing the m2 multi AAD and we hope that you never nd yourself in a situation in which you would need to use it. Simply switch on the m2
multi in the chosen prole before the rst jump and it will quietly guard your safety from that moment until it is switched o again.
The “AAD” Automatic Activation Device is an automatic electronic safety device. The m
2
multi device continuously checks that the skydiver is not too close to
the ground without an open and functional parachute. It ensures the fall rate and altitude of the skydiver. If the m2 multi evaluates the situation as dangerous
for the skydiver, its cutter automatically cuts the reserve parachute closing loop and thus initiates the sequence of reserve parachute deployment. It is designed
and manufactured on the basis of the latest ndings focused on sport skydiving and its functions fully comply with the requirements of current skydiving sport.
Professional engineers who are themselves excellent skydivers participated in its development. The device has ve dierent prole settings:
STUDENT, INTERMEDIATE, PROFESSIONAL, CANOPY PILOTING and TANDEM. When switched on, the m2 multi works fully automatically, without any user
intervention.
1.2. Main advantages
The main advantages of the m2 multi device are:
- ultra low power design - no battery replacement necessary for the service life duration
- service life 15 years + 6 months without the need to perform the prescribed servicing by the manufacturer
- compact smooth rounded metal construction
- minimum thickness of the body and the control unit
- water resistance up to 2m in salt or fresh water
- simple operation and many sophisticated additional features
- special at cutter design with a knife to cut the closing loop
1.3. Operating principle
The
m2 multi is an electronic automatic activation device, operating on the principle of pressure reading. The primary means for detecting the altitude
and fall rate is a pressure sensor. The altitude is calculated based on the dierence between two atmospheric pressures. The pressure at current altitude and
pressure on landing location “GROUND ZERO”. The pressure on the landing location is measured and set after switching on the device during calibration.
This pressure is automatically adjusted by a change in barometric pressure during the day without the need for user intervention. The
m2 multi checks
the ambient barometric pressure every 32 seconds and it determines whether the aircraft has taken o. If yes, it begins to monitor the skydiver’s altitude
and fall rate. The pressure sensor measures the atmospheric pressure 8x per second in free fall.
The information collected is evaluated by means of a microprocessor and ingenious software and it is converted to real fall rate and altitude. Thanks to this,
the
m2 multi device is capable of meeting the preset criteria of fall rate in combination with altitude above the landing location, cut the reserve parachute
closing loop by means of the cutter and thus initiate the deployment sequence. The device is activated only in the case the preset criteria are met; the
criteria dier depending on the set proles - STUDENT (Stu), INTERMEDIATE (Int), PROFESSIONAL (Pro), CANOPY PILOTING (Cpi) and TANDEM (Tan).
5
2. m2 multi description
2.1. Construction
The m2 multi is designed to best meet the requirements for durability and correct operation in all situations. It strives not to restrict the
skydiver. It works with minimum power consumption, which allows it to maintain sucient capacity of the energy source for its entire service
life without having to replace the battery. It is built inside a minimum-size cover and thus gives the skydiver the possibility to open the reserve
parachute without using the manual handle. The m
2
multi consists of a processing unit with the battery, processor, electronic circuits and a
pressure sensor. The processing unit is connected to the control unit by means of a cable; the control unit contains a multifunction display and
control button. The cutter connected in the processing unit body via a connector as a removable part of the device.
2.2. Processing unit
The body of the processing unit is made of aluminum alloy and its surface is coated. The front face of the unit bears the m2 multi logo and on
the back there is the identication label. Between the cables on the top side there is a lter. The whole body is watertight.
The identication label indicates the following information:
- SN (Serial Number), unique serial number
- MFD (Manufacture Date), year and month of manufacture
- m2 multi AAD, commercial designation
- Made in Czech Republic and EU, country of origin
- logo and other specications required for such a device
diam. 8 mm
diam.
3,8 mm
diam.
10 mm
9 mm
55 mm
8 mm
6
2. m2 multi description
2.3. Control unit
The body of the control unit is made of stainless steel and is connected to the processing unit by a exible cable. The unit has a display for the
various icons and a control button.
2.4. Cutter
The cutter is made of stainless steel and cuts the reserve parachute closing loop, if necessary.
Its shape allows it to be rmly xed between the reserve parachute container aps and it prevents the cutter body from turning around its
longitudinal axis. It is highly scratch resistant. It is connected to the main unit via a exible cable and a connector. The connector is completely
inserted into the processing unit and is secured with a locking screw to prevent accidental removal.
Only press the control button with the pad of
your finger!
Control buttonDisplay
7
3. Profiles
3.1. Description
Prole is a set of parameters that determine the conditions for activation of the m2 multi device. The most important parameters are the activation altitude and the fall rate. The parameters of the individual proles are xed. The user may select and set a prole depending on his skills,
used parachute and sports performance or focus. The prole setting is permanent and may be changed in the SETUP menu.
3.2. List of proles
STUDENT (Stu)
INTERMEDIATE (Int)
PROFESSIONAL (Pro)
CANOPY PILOTING (CPi)
TANDEM (TAn)
3.2.1. STUDENT (Stu)
The STUDENT prole is designed for basic training of students and AFF. It is activated when the height above the landing location is lower than
approx. 330
m
/ 1 100ft and fall rate is higher than approx. 13m.s-1 / 29mph. The altitude lock opens at approx. 450m / 1 475ft. The device
does not activate when below approx. 60
m
/ 195ft. The activation zone is thus in the range of approx. 330m to 60m / 1 100ft to 195ft above
the landing location.
Warning:
The speed of approx. 13
m
.s-1 / 29mph may be also reached with a fully functional parachute!
If the student-skydiver does not go on with the jump and lands on board the aircraft, switch o the m2 multi device always in the STUDENT
setting. If this is not possible, the aircraft must not descend faster than approx. 13
m
.s-1 / 29mph.
8
3. Profiles
3.2.2. INTERMEDIATE (Int)
The INTERMEDIATE prole is designed for basic training of advanced students and AFF. It is activated when the height above the landing location is lower than approx. 330m / 1 100ft and fall rate is higher than approx. 20m.s-1 / 45mph.
The altitude lock opens at approx. 450
m
/ 1 475ft. The device does not activate when below approx. 60m / 195ft. The activation zone is thus
in the range of approx. 330m to 60m / 1 100ft to 195ft above the landing location. It is the recommended setting for students after completing the rst ten jumps. It is solely upon the decision of the instructor to determine the setting and suitability of its use for a particular student.
Warning:
The speed of approx. 20
m
.s-1 / 45mph may be also reached with a fully functional parachute!
If the student-skydiver does not go on with the jump and lands on board the aircraft, switch o the m
2
multi device always in the INTERME-
DIATE setting. If this is not possible, the aircraft must not descend faster than approx. 20m.s-1 / 45mph.
3.2.3. PROFESSIONAL (Pro)
The PROFESSIONAL prole is the most commonly used setting of the device. Is designed for experienced skydivers. It is activated when the height above the landing location is lower than
approx.
270m / 885ft and fall rate is higher than
approx.
35m
.s-1 / 78mph. The altitude lock opens
at
approx.
450m / 1 475ft. The device does not activate when below
approx.
100m / 330ft. The activation zone is thus in the range of
approx.
270m to 100m / 885ft to 330ft above the landing location.
Warning:
The speed of approx. 35m
.s-1 / 78mph may be also reached with a fully functional parachute!
If you are using a high-performance parachute, check the GRAVITY index! (Section 5.4.4.).
9
3. Profiles
3.2.4. CANOPY PILOTING (CPi)
The CANOPY PILOTING prole is primarily intended for the Canopy Piloting sports discipline. The prole is used only for the most experienced pilots
with extremely quick parachutes and vast experience. It is activated when the height above the landing location is lower than
approx.
270m / 885ft
and fall rate is higher than approx. 45m.s
-1
/ 101mph. The altitude lock opens at
approx.
450m / 1 475ft. The device does not activate when below
approx. 150m / 490ft. The activation zone is thus in the range of approx. 270m to 150m / 885ft to 490ft above the landing location.
Warning:
The speed of approx. 45
m
.s-1 / 101mph may be also reached with a fully functional parachute!
3.2.5. TANDEM (TAn)
The TANDEM prole is designed for tandem kits. It is activated when the height above the landing location is lower than approx. 610m / 2 000ft
and fall rate is higher than approx. 35m.s-1 / 78mph. The altitude lock opens at approx. 900m / 2 950ft. The device does not activate when below
approx. 100m / 330ft. The activation zone is thus in the range of approx. 610m to 100m / 2 000ft to 330ft above the landing location.
10
3. Profiles
approx.
>35m/s
approx.
>78mph
alt - lock
approx.
900m
approx.
2,950ft
approx.
610m
approx.
2,000ft
approx.
100m
approx.
330ft
approx.
>13m/s
approx.
>29mph
altitude (m)
STUDENT
approx.
450m
approx.
1,475ft
approx.
330m
approx.
1,100ft
approx.
60m
approx.
195ft
0
100
200
300
400
500
600
700
800
900
0
330
655
985
1,310
1,640
1,970
2,295
2,625
2,950
altitude (ft)
alt - lock
approx.
>20m/s
approx.
>45mph
INTERMEDIATE
approx.
450m
approx.
1,475ft
approx.
330m
approx.
1,100ft
approx.
60m
approx.
195ft
alt - lock
approx.
>35m/s
approx.
>78mph
PROFESSIONAL
approx.
450m
approx.
1,475ft
approx.
270m
approx.
885ft
approx.
100m
approx.
330ft
alt - lock
approx.
>45m/s
approx.
>100mph
CANOPY PILOTING
TANDEM
approx.
450m
approx.
1,475ft
approx.
270m
approx.
885ft
approx.
150m
approx.
490ft
alt - lock
Parameters in chapter 3.4.
3.3. Prole charts
11
3. Profiles
3.4.1.
m2 multi
STUDENT (Stu)
Altitude lock (Alt-Lock) approx. 450m / 1 475ft
Activation zone begins (Top) approx. 330m / 1 100ft
Activation zone ends (Bottom) approx. 60m / 195ft
Activation speed approx. > 13m.s-1 / 29mph
3.4.2.
m2 multi
INTERMEDIATE (Int)
Altitude lock (Alt-Lock) approx. 450m / 1 475ft
Activation zone begins (Top) approx. 330m / 1 100ft
Activation zone ends (Bottom) approx. 60m / 195ft
Activation speed approx. > 20m.s-1 / 45mph
3.4.3.
m2 multi
PROFESSIONAL (Pro)
Altitude lock (Alt-Lock) approx. 450m / 1 475ft
Activation zone begins (Top) approx. 270m / 885ft
Activation zone ends (Bottom) approx. 100m / 330ft
Activation speed approx. > 35m.s-1 / 78mph
3.4.4.
m2 multi
CANOPY PILOTING (CPi)
Altitude lock (Alt-Lock) approx. 450m / 1 475ft
Activation zone begins (Top) approx. 270m / 885ft
Activation zone ends (Bottom) approx. 150m / 490ft
Activation speed approx. > 45m.s-1 / 101mph
3.4.5.
m2 multi
TANDEM (TAn)
Altitude lock (Alt-Lock) approx. 900m / 2 950ft
Activation zone begins (Top) approx. 610m / 2 000ft
Activation zone ends (Bottom) approx. 100m / 330ft
Activation speed approx. > 35m.s-1 / 78mph
3.4. Prole parameters
12
3. Profiles
3.5. AdJUSt description and use
The individual proles and their activation parameters are xed in the process of manufacture. Some users may prefer a higher activation
altitude, which gives them more time to deal with an emergency in case of activation. In some countries or at some dropzones a higher
activation altitude may be required by local regulations. The AdJUSt function allows the user to modify the current prole and increase the
activation altitude in case this is considered necessary. In the current prole the “Top” activation altitude may be increased in several steps, A1
to A9. The individual increments are approx. 30 m / 100 ft. The maximum increase in the activation altitude is approx. +270 m / 900 ft. The
AdJUSt setting is permanent and is displayed together with the current prole on the control unit display.
Warning:
- The altitude lock increases adequately according to the selected step A1 to A9! (Section 7.2.)
- Take care to open the main parachute in time as you may quickly reach the activation altitude!
Procedure of setting the AdJUSt function can be found in Section 6.3.
13
4. Operating mode
4.1. Description
The
m2 multi
device may be switched on in several modes. The mode is selected when the device is switched on and remains active until it is switched o again
- the selection is not permanent. The various modes are used to distinguish the type of jump and they determine the device behavior. BASIC mode is used most
often - when the skydiver performs the jump at an airport (dropzone) and the aircraft take-o point and the landing location are thus the same - they are at the same
elevation. OFFSEt mode must be always used when the take-o and landing locations are at dierent elevations. OFFSEt mode allows the user to enter the elevation
dierence between the aircraft take-o point and the landing location during the switch on sequence. If the device is switched on in BASIC mode, the current prole
is shown on the display. If the device is switched on in OFFSEt mode, the display shows “oset”, the rst letter of the prole, the entered elevation dierence between
the aircraft take-o point and the landing location, and the units icon. When the button is depressed, the full description of the current prole is displayed.
4.2. List of modes
- BASIC It is used when the skydiver takes-o and lands at the same place.
- OFFSEt HI It is designed for situations when the landing location is higher (elevation) than the elevation at which the device was switched on.
- OFFSEt LO It is designed for situations when the landing location is lower (elevation) than the elevation at which the device was switched on.
4.2.1. BASIC - mode
The BASIC mode shall be used always, when the skydiver starts (take-o point of the aircraft), and lands at the same place, usually the drop zone and
does not need to change the device parameters due to higher or lower landing location. The landing location is in this case at the same elevation as
the take-o point of the aircraft, where the
device was switched on. Always switch on
the device at the landing location. The m2
multi requires the plane to immediately
climb approx. 40m/130ft above Ground
Zero for a correct detection of start-up
and remain above this altitude until the
skydivers jump o. In the next phase of the
ight it is necessary to exceed the Altitude
lock (watch out for increasing the unlocking
altitude, see Section 6.3.) according to
the preset device prole (
approx.
450m/
1 475ft - Stu, Int, Pro, Cpi, (ca 900m / 2 950ft
- Tan) to unlock the device.
Ground
zero
approx. +130ft / + 40m
Restricted area
Unlocking altitude of Altitude lock
approx. +450m / +1475ft - Stu, Int, Pro, CPi
approx. +900m/ +2950ft - TAn
14
4. Operating mode
4.2.2. OFFSEt HI - mode
OFFSET HI mode is designed for situations when the landing location is higher (elevation) than the elevation at which the device was switched
on (take-o point of the aircraft). It is necessary to set the elevation dierence of the landing location in the range of approx. +/- 999m /
+/- 2 990ft. Reminder: This is a temporary setting for one jump only! The settings can only be done when switching on the device. When
using the OFFSET HI mode, the altitude at which the altitude lock opens relates to the preset landing location elevation. It is also necessary
to bear this fact in mind in case of an emergency situation!
Switch on the device at the take-o point of the aircraft. For correct operation of the m2 multi it is necessary to preset the elevation dierence
between the landing location and the takeo location. Enter the numeric value of the
dierence between the parachutist landing
location and the aircraft take-o point. The
altitude lock is in this case relates to the landing
location, i.e. according to the prole either
approx. +450m / +1 475ft for proles Stu, Int,
Pro and Cpi or about +900m / +2 950ft for prole
Tan plus the specied elevation dierence. In
such case, the m2 multi requires the plane to
immediately climb approx. 40m/130ft above
the take-o point for a correct detection of
start-up and remain above this altitude. After
reaching the preset altitude plus approx. 40m /
130ft and exceeding it, the aircraft shall remain
above this level until the skydivers jump o.
If the skydiver lands at the preset altitude,
the device switches o automatically. If the
device does not switch o automatically, do it
manually after landing. Switch the device on
only before the following jump. This ensures
perfect calibration and operation of the m2
multi device.
Ground
zero
approx. + 130ft / + 40m
approx. + 130ft / + 40m
Unlocking altitude of Altitude lock
approx. +450m / +1475ft - Stu, Int, Pro, CPi
approx. +900m/ +2950ft - TAn
Restricted area
Restricted area
15
4. Operating mode
4.2.3. OFFSEt LO - mode
OFFSET LO mode is designed for situations when the landing location is lower (elevation) than the elevation at which the device was switched on.
In this mode, you can set the elevation dierence of the landing location in the range of approx. +/- 999m / +/- 2 990ft. Reminder: This is a
temporary setting for one jump only! The settings can only be done when switching on the device. When using the OFFSEt LO mode, the
altitude at which the altitude lock opens relates to the preset landing location elevation. It is also necessary to bear this fact in mind in
case of an emergency situation!
Switch on the device at the take-o point of the aircraft. For correct operation of the m2 multi it is necessary to preset the elevation dierence between
the landing location and the take-o location. Enter the numeric value of the dierence between the parachutist landing location and the aircraft take
-
-o point. The altitude lock is in this case relates to the landing location, i.e. according to the prole either approx. +450m / +1 475ft for proles Stu,
Int, Pro and Cpi or approx. +900m / +2 950ft for prole Tan minus the specied elevation dierence. In such case, the m2 multi requires the plane to
immediately climb approx. 40m/130ft above the take-o point for a correct detection of start-up and remain above this altitude for at least 90 seconds.
After these 90 seconds it is possible to descend below the take-o altitude but not below the preset landing location altitude plus approx. 40m / 130ft.
If the skydiver lands at the preset altitude, the device switches o automatically. If the device does not switch o automatically, do it manually after
landing. Switch the device on only before the following jump. This ensures perfect calibration and operation of the m
2
multi device.
Ground
zero
approx. +130ft / + 40m
approx. +130ft / + 40m
90 sec.
Unlocking altitude of Altitude lock
approx. +450m / +1475ft - Stu, Int, Pro, CPi
approx. +900m/ +2950ft - TAn
Restricted area
16
4. Operating mode
4.3.1. BASIC mode - example
BASIC mode shall be used always, when the skydiver takes o and lands on the same location, usually drop zone (takes o and lands at the same elevation).
The display shows:
Switched on in the BASIC mode with STUDENT (Stu) prole
4.3.2. OFFSEt HI mode - setting and example
Limit warning! The OFFSEt HI mode can only be used locally on the same isobar!
Example: The landing location is about 250m above the point at which the device was turned on (take-o point).
Briey press the yellow button on the control unit, GO-ON sign appears (for 2 seconds). Do not hold the button, depress it only briey!!!
During the time the GO-ON sign is displayed, preferably immediately after it comes on, depress the yellow button briey once again. The GO-ON sign
appears again. After the yellow button is depressed again (GO-ON sign displayed), the last preset PROFILE can be seen on the display (Stu, Int, Pro, Cpi, Tan).
DO NOT CONFIRM the selected PROFILE and wait for OFFSEt function to show; conrm this function by pressing the button.
The display shows +HI (increased landing elevation). Conrm +HI by pressing the yellow button at the moment the required function is indicated on the
display. (Note: If the device had already been set for OFFSET in the given mode +/-, the display shows the last selected setting for two seconds.)
If the original setting is not conrmed by depressing the button, the display will show the initial letter of the set PROFILE (Stu, Int, Pro, Cpi, Tan), then the
plus sign (+) and in two one-second intervals it displays the numbers to allow exact setting of the required altitude. The rst number is hundreds of meters,
followed by tens and single meters. After entering the required oset, the device calibrates. The initial letter of the PROFILE remains on the display and
above it is the sign oset followed by a plus sign (+) and the set meters. For a better control of the selected PROFILE, it is possible to press the button once,
the whole set PROFILE is shown and above it is the oset sign, after four seconds the GO-OFF sign appears in case you intend to switch o the device
completely, and the INFO menu also comes on that allows access to the information menu.
Switched on in the OFFSEt HI +250m mode with STUDENT (Stu)
4.3. Examples of using modes
17
4. Operating mode
4.3.2.a. OFFSEt HI mode - sequence
The landing location is about 1 000ft above the point at which
the device was turned on (take-o point).
After a completed jump in the OFFSEt mode, the device
switches o automatically!
If the device does not switch o automatically, do it manually
after landing.
Example:
Switched on in the OFFSEt HI +1000ft mode with PROFFESIONAL
(Pro) prole
offset
offset
feet
Switch o with oset
blank LCD - device is off
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
offset
offset
offset
offset
offset
offset
feet
feet
feet
feet
feet
feet
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
blank LCD - device is off
offset
offset
offset
offset
offset
offset
feet
feet
feet
feet
feet
feet
Switch on with 1000 feet - offset
blank LCD - device is off
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
offset
offset
offset
offset
offset
offset
offset
offset
offset
feet
feet
feet
feet
feet
feet
feet
feet
feet
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
Switch on with 1000 feet + offset
blank LCD - device is off
wait
OK
offset
offset
offset
offset
offset
offset
offset
offset
offset
feet
feet
feet
feet
feet
feet
feet
feet
feet
Switch on with 1000 feet - offset
blank LCD - device is off
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
Switched on with OFFSEt +1000ft
Switched o with OFFSEt
18
4. Operating mode
4.3.3. OFFSEt LO mode - setting and example
Limit warning! The OFFSEt LO mode can only be used locally on the same isobar!
Example: The landing location is about 175 m below the point at which the device was turned on (take-o point).
Briey press the yellow button on the control unit, GO-ON sign appears (for 2 seconds). Do not hold the button, depress it only briey!!!
During the time the GO-ON sign is displayed, preferably immediately after it comes on, depress the yellow button briey once again. The GO-ON
sign appears again. After the yellow button is depressed again (GO-ON sign displayed), the last preset PROFILE can be seen on the display (Stu,
Int, Pro, Cpi, Tan). DO NOT CONFIRM the selected PROFILE and wait for OFFSEt function to show; conrm this function by pressing the button.
The display shows -LO (decreased landing elevation). Conrm -LO by pressing the yellow button at the moment the required function is indicated
on the display. (Note: If the device had already been set for OFFSET in the given mode +/-, the display shows the last selected setting for two
seconds.) If the original setting is not conrmed by depressing the button, the display will show the initial letter of the set PROFILE (Stu, Int,
Pro, Cpi, Tan), then the minus sign (-) and in two one-second intervals it displays the numbers to allow exact setting of the required altitude.
The rst number is hundreds of meters, followed by tens and single meters. After entering the required oset, the device calibrates. The initial
letter of the PROFILE remains on the display and above it is the sign oset followed by a minus sign (-) and the set meters. For a better control
of the selected PROFILE, it is possible to press the button once, the whole set PROFILE is shown and above it is the oset sign, after four seconds
the GO-OFF sign appears in case you intend to switch o the device completely, and the INFO menu also comes on that allows access to the
information menu.
Switched on in the OFFSEt LO -175m mode with STUDENT (Stu) prole
19
4. Operating mode
4.3.3.a. OFFSEt LO mode - sequence
The landing location is about 1000ft below the
point at which the device was turned on (take-o
point).
After a completed jump in the OFFSEt mode, the
device switches o automatically!
If the device does not switch o automatically, do it
manually after landing.
offset
offset
offset
offset
offset
offset
feet
feet
feet
feet
feet
feet
blank LCD - device is off
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
offset
offset
offset
offset
offset
offset
offset
offset
offset
feet
feet
feet
feet
feet
feet
feet
feet
feet
blank LCD - device is off
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
offset
offset
feet
Switch o with oset
blank LCD - device is off
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
Switched on with OFFSEt -1000ft
Switched o with OFFSEt
20
5. Controls
5.1. Control basics
Control of the m2 multi device is very simple. The only control is the yellow button on the control unit (Section 2.3). Always depress the button
shortly and release it immediately. Apart from the rst time the button is pressed when the device is switched on, the button shall always be
depressed when the relevant icon is displayed.
In case the button is not depressed shortly when the relevant icon is displayed, the switch-on sequence is interrupted. It is then necessary to
start switch-on sequence from the beginning.
Never switch on the device on board the aircraft!
5.2. Switching the device on and o
Proceed according to the following charts:
5.2.2 Switch o sequence
The device is OFF.
5.2.1 Switch on sequence
The device is now ON in the BASIC mode
with PROFESSIONAL (Pro) prole.
blank LCD - device is off
Simple switch on
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
offset
offset
feet
blank LCD - device is off
Simple switch on
Simple switch o
Switch o with oset
blank LCD - device is off
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
21
5. Controls
5.3. Changing the prole
The possibility to change the prole of the device is one
of its main advantages. Proles can be changed arbitrarily,
the m
2
multi does not have any limitations in this respect.
Before using the device for a jump, check the currently
set prole and make sure that you are familiar with the
prole parameters, especially its top altitude limit of the
activation zone (Section 3.4.).
5.3.1. Prole changes sequence
The following chart is an example of changing the Pro
(PROFESSIONAL) prole to Stu (STUDENT) prole.
Change actual prole
blank LCD - device is off
blank LCD - device is off
wait
wait
wait
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
Change actual prole from PROFESSIONAL to STUDENT
22
5. Controls
5.4. INFO
It is possible to access the INFO menu with the device switched
on as well as o.
All the useful information is stored under individual letters.
5.4.1 Access INFO with device ON
Briey press the yellow button on the control unit once, GO-ON
sign appears (for 2 seconds). Do not hold the button, depress it
only briey! After two seconds the INFO sign appears, conrm it
immediately by pressing the button. Afterwards, the individual
letters begin to appear in two-second intervals - d, j, G, b, l, n, r,
y, P. Wait for the required number and conrm it by pressing the
button. Subsequently, the requested information is visible for a
period of ve seconds. After this period, the m
2
multi returns to
its basic settings – switched on.
5.4.2 Access INFO with device OFF
Briey press the yellow button on the control unit, GO-ON sign
appears (for 2 seconds). Do not hold the button, depress it only
briey! During the time the GO-ON sign is displayed, preferably
immediately after it comes on, depress the yellow button briey
once again. The GO-ON sign appears again. After the yellow
button is depressed again (GO-ON sign displayed), the last preset
PROFILE can be seen on the display (Stu, Int, Pro, Cpi, Tan). Do
not press the button to conrm the prole, but wait for the
OFFSET sign to appear, after two seconds the INFO sign appears,
conrm it by depressing the button. Afterwards, the individual
letters begin to appear in two-second intervals - d, j, G, b, l, n, r,
y, P. Wait for the required number and conrm it by pressing the
button. Subsequently, the requested information is visible for a
period of ve seconds. After this period, the m
2
multi returns to
its original settings – switched o.
oset
hPa
hPa
feet
feet
meter
x100
/s
oset
oset
oset
hPa
hPa
hPa
feet
feet
feet
meter
meter
meter
x100
x100
x100
/s
/s
/s
oset hPa feet meter
x100
/s
oset
hPa
feet
meter
blank LCD - device is o
x100
/s
5.4.3. Meaning of individual letters
d - deploy altitude of the last jump
J - total number of jumps
G - Gravity index of the last jump
b - remaining battery capacity
L - remaining service life of the device (in days)
n - device serial number
r - rmware version
Y - year and month of manufacture
P - barometric pressure
23
5. Controls
5.4.4. Gravity index
G - Gravity index is the percentage of the highest achieved fall rate in the activation zone during the last jump, when 100 % is the activation
speed of the currently used device prole. After landing, the skydiver may check how close he was to the device activation limit during his
ight on the parachute in the activation zone. This information is particularly important for Canopy Piloting, when the parachute pilots reach
high speeds at minimum height above ground.
5.5. Error messages
An error message icon “Err” (ERROR) appears on the display. When this icon is visible, the m
2
multi shall not be used for jumps until the problem
is resolved. To determine the type of error, proceed as follows: Briey press the control button (2) on the control unit body (1). The display (2)
then indicates the error number. If the “FaiL” (FAILURE) icon appears on the display, the device is blocked, and it is impossible to switch it on or
o. It must be send to the manufacturer for repair..
5.5.1. List of errors and their numbers
„0“ Internal integration error.
Solution: Send your device to the manufacturer for repair
“1” Calibration error to GROUND ZERO. The range of the measured values is too large or the calibration value is out of limits.
Solution: Turn the m
2
multi device o and on again, the calibration shall start over.
“2” Cutter error. The cutter is not connected properly, it is used or damaged.
Solution: Check the cutter or replace it with a new one.
“4” Low battery voltage.
Solution: If the error occurs repeatedly, do not use the device, contact the dealer, distributor or manufacturer.
“8” Pressure sensor error or out-of-range value.
Solution: Switch the m
2
multi o and on again. If the error occurs repeatedly, do not use the device, contact the dealer, distributor
or manufacturer.
In case the above given solutions do not help or in case you are not sure how to proceed, contact the dealer, distributor or manufacturer.
24
6. SEtUP
6. SEtUP
The SEtUP may be entered when switching on the device. SEtUP allows access to the following device settings and their permanent change.
- SCALE (setting the units meter / feet)
- ProFilE (setting the prole Stu, Int, Pro, CPi, TAn)
- AdJUSt (increase the activation height)
6.1. SCALE setting description
The setting is performed when switching on the device. Briey press the yellow button on the control unit, GO-ON sign appears (for 2 seconds).
Do not hold the button, depress it only briey!!! During the time the GO-ON sign is displayed, immediately after it comes on, depress the
yellow button briey once again. The GO-ON sign appears again. After the yellow button is depressed again (GO-ON sign displayed), the last
preset PROFILE can be seen on the display (Stu, Int, Pro, Cpi, Tan). Do not press the button to conrm the prole, but wait for the OFFSEt sign
to appear, after two seconds the INFO sign appears and after another two seconds the SETUP comes on - conrm by depressing the button
shortly.
SCALE is displayed as rst, conrm it by shortly depressing the button.
By conrming access to the SCALE menu, the individual units begin to show in two-second intervals. The rst unit to display is the METER, the
second is the FEET.
Conrm the selected unit by pressing the button.
The unit is set when the device is switched on again.
25
6. SEtUP
6.1.1. SCALE setting sequence
Change scale
meter to feet
Set Adjust
to + 200 feet
blank LCD - device is off
blank LCD - device is off
blank LCD - device is off
feet
x100
Change actual prole
from Professional to Sudent
blank LCD - device is off
blank LCD - device is off
wait
wait
wait
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
Change SCALE meter to feet
26
6. SEtUP
6.2. ProFilE setting description
The setting is performed when switching on the device. Briey press the yellow button on the control unit, GO-ON sign appears (for 2 seconds).
Do not hold the button, depress it only briey!!! During the time the GO-ON sign is displayed, immediately after it comes on, depress the
yellow button briey once again. The GO-ON sign appears again. After the yellow button is depressed again (GO-ON sign displayed), the last
preset PROFILE can be seen on the display (Stu, Int, Pro, CPi, TAn). Do not press the button to conrm the prole, but wait for the OFFSEt sign
to appear, after two seconds the INFO sign appears and after another two seconds the SETUP comes on - conrm by depressing the button
shortly.
SCALE is shown as rst, do not conrm. Wait until ProFilE is displayed, than conrm it by shortly pressing the button.
By conrming access to the ProFilE menu, the individual proles begin to show in two-second intervals.
Stu – Student,
Int – Intermediate,
Pro – Professional,
CPi – Canopy Piloting,
TAn – Tandem,
For prole parameters, see chapter 3.4.
Conrm the selected prole to be displayed by pressing the button.
After switching on the m
2
multi, the selected prole will be displayed on the display.
27
6. SEtUP
6.2.1. ProFilE setting sequence
Change actual prole
blank LCD - device is off
blank LCD - device is off
wait
wait
wait
wait
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
Change actual prole from PROFESSIONAL to STUDENT
28
6. SEtUP
6.3. AdJUSt setting description
The setting is performed when switching on the device. Briey press the yellow button on the control unit, GO-ON sign appears (for 2 seconds).
Do not hold the button, depress it only briey!!! During the time the GO-ON sign is displayed, immediately after it comes on, depress the
yellow button briey once again. The GO-ON sign appears again. After the yellow button is depressed again (GO-ON sign displayed), the last
preset PROFILE can be seen on the display (Stu, Int, Pro, Cpi, Tan). Do not press the button to conrm the prole, but wait for the OFFSEt sign
to appear, after two seconds the INFO sign appears and after another two seconds the SETUP comes on - conrm by depressing the button
shortly.
SCALE is shown as rst, do not conrm, afterwards the ProFilE comes on, do not conrm. Wait until AdJUSt is displayed, than conrm it by
shortly pressing the button. By conrming access to the ADJUSt menu, the individual increases in activation altitude A1 to A9 begin to show
in two-second intervals.
Conrm the displayed altitude A by pressing the button. The selected prole and increased activation altitude A1 to A9 are set when the m2
multi device is switched on again.
Meters/feet are added to the activation altitude of the set prole as follows:
A1 approx. + 30m / 100ft
A2 approx. + 60m / 200ft
A3 approx. + 90m / 300ft
A4 approx. +120m / 400ft
A5 approx. +150m / 500ft
A6 approx. +180m / 600ft
A7 approx. +210m / 700ft
A8 approx. +240m / 800ft
A9 approx. +270m / 900ft
Warning:
ADJUSt changes the altitude lock of the selected prole by the set value A1 - A9
29
6. SEtUP
6.3.1. AdJUSt setting sequence with example (setting A2)
Setting the m2 multi device with Pro prole to AdJUSt A2. Standard
activation altitude of the Pro prole is approx. 270m / 885ft. Adjust A2 adds
about +60
m
/ 200ft, the activation height will thus be approx. +330m /
1 085ft.
The altitude lock increases to about 510
m
/ 1 675ft
Set Adjust
to + 200 feet
blank LCD - device is off
Change actual prole
from Professional to Sudent
blank LCD - device is off
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
Set Adjust
to + 200 feet
blank LCD - device is off
feet
feet
feet
feet
x100
x100
x100
x100
Change actual prole
from Professional to Sudent
blank LCD - device is off
blank LCD - device is off
wait
wait
wait
wait
OK
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
AdJUSt setting on + 200ft
30
7. Important limits and limit modes
7.1. Use in pressurized aircraft
The m2 multi can be used in a pressurized aircraft in compliance with the following conditions.
Ambient atmospheric pressure shall be maintained (outside the aircraft) up to approx. 450m / 1 475ft above the take-o location for the m2
multi device proles STUDENT, INTERMEDIATE, PROFESSIONAL, CANOPY PILOTING and approx. 900m / 2 950ft for the device prole TANDEM.
The device unlocks at these altitudes. When the device is unlocked, the control unit display shows a colon “:”. The icon is used to check that the
altitude lock is unlocked. After the altitude lock is unlocked, the aircraft can be pressurized. The aircraft must not be pressurized to a pressure
greater than the ambient atmospheric pressure corresponding to approx. 450m / 1 475ft or approx. 900m / 2 950ft. If there are m2 multi
devices onboard the aircraft with altitude locks preset to approx. 450m / 1 475ft as well as 900m / 2 950ft, the pilot proceeds according to
the rule of pressurizing to ambient atmospheric pressure corresponding to approx. 900m / 2 950ft. If it is not possible to comply with the
specied limits, the device may fail! When AdJUSt and OFFSEt are used, the limits change depending on the settings!!
7.2. Altitude lock
The altitude lock is the altitude above landing location related to the device prole and is preset in the device. At the xed altitude during
the climb of the aircraft, the device automatically unlocks to activate the cutter. Only after exceeding this altitude is it possible to activate the
cutter. When the altitude lock is unlocked, the control unit display shows a colon “:”. The icon is used to check that the altitude lock is unlocked.
If the aircraft does not exceed the altitude of the lock, the m2 multi does not activate the cutter even if the activation parameters are met.
Attention!
When using the AdJUSt function (Sections 3.5. and 6.3.) the altitude of the lock changes correspondingly!
7.3. Water jumps
The m2 multi device may be used for (salt as well as fresh) water jumps. The processing unit, control unit and cutter are waterproof to approx.
2m / 6.5ft under the surface for 24 hours. The processing unit contains a lter that must be replaced after contact with water. The procedure
of replacing the lter can be found in Section 9. Maintenance. We recommend that you leave the lter replacement to your rigger.
7.4. Instructions for the pilot
The altitude protection zone of the m2 multi device is the rst 40m / 130ft above the aircraft take-o point. These 40m/ 130ft shall be climbed
as quickly as possible. At these 40m / 130ft the m2 multi recognizes that the aircraft has taken o and transfers from stand by mode to y
mode. After crossing the protection zone 40m / 130ft, the device must not once again descend below this height until the skydivers leave the
aircraft. The only exceptions are cases in which the skydiver’s landing location lies at a dierent altitude than the aircraft take-o location. If
such is the case, carefully read the OFFSEt HI (Section 4.2.2), the OFFSEt LO (Section 4.2.3.) and AdJUSt function (Sections 3.5. and 6.3.), where
the specied m2 multi modes and functions are illustrated and described in detail.
31
7. Important limits and limit modes
- Never break or pull on the control unit cable or the cutter cable!
- The control button shall only be pressed using your nger pad, never use your nail or any other sharp instrument!
- The m
2
multi device is responsible only for the activation of the cutter according to the specied limits and for cutting
reserve parachute closing loop that passes through it. Is not responsible for the proper operation of the entire system
of the harness with container, reserve parachute and other equipment and their full functionality!
- Never switch on the device on board the aircraft!
- The device is operating (armed) only after the altitude lock unlocks. When the device is unlocked, the control unit
display shows a colon
- The skydive aircraft must not descend below the landing location altitude plus 40m / 130ft (if it is already above it)
until the skydivers exit the aircraft.
- If the jump lasted longer than standard (more than 1.5 hours), switch the device o and on again.
- If you land outside the airport and are returning, in case of any transport or in case you leave the airport to return,
switch o the device and switch it back on only before another jump.
- If you accidentally land on a site located about 30m / 100ft above or below the preset landing location, switch the
device o after landing and switch it back on only before another jump.
- Maintain safe altitude for deploying the main parachute. Avoid falling to the altitude of the device activation zone.
This represents a risk of the reserve parachute opening together with the main parachute!
- For a awless function of the system it is necessary to have the correct pilot chute according to the container
manufacturer. The closing loops must be closed with the minimum force of 50 N.
- When using a high-performance parachute, check the GRAVITY index.
- In case the jump is aborted, switch o the m
2
multi device before descent in the set prole STUDENT. A landing aircraft
can easily reach fall rate over 13m.s
-1
/ 29mph (2 500ft/min).
- Avoid strong sources of electromagnetic radiation such as radars, GSM transmitters, walkie-talkies, etc. Never dispose
of the used cutter in open re or common waste. The cutter remains under pressure!
- After any contact of the m
2
multi device with water (or any other liquid), it is always necessary to replace the lter even
though the device appears to be functioning properly when dry!
Set Adjust
to + 200 feet
blank LCD - device is off
feet
feet
feet
feet
x100
x100
x100
x100
Change actual prole
from Professional to Sudent
blank LCD - device is off
blank LCD - device is off
wait
wait
wait
wait
OK
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
Set Adjust
to + 200 feet
blank LCD - device is off
feet
feet
feet
feet
x100
x100
x100
x100
Change actual prole
from Professional to Sudent
blank LCD - device is off
blank LCD - device is off
wait
wait
wait
wait
OK
OK
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
wait
wait
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
click
>> & <<
wait
7.5. Important operation principles
32
8. Installation
8.1. Installation procedure
The m2 multi automatic activation device may be installed in the containers of dierent manufactures only by a trained person with senior
authorization - master rigger or a holder of a comparable equivalent in accordance with the legislation of the country where the m2 multi
will be installed. The m
2
multi automatic activation device must be installed into an original kit supplied by the MarS company and installed
in the container directly by the manufacturer of the container and the harness or by an authorized rigger. During the installation, the rigger
must always ensure that the cutter, cables, pouches for the m
2
multi body and control and processing units are placed in compliance with the
Manual issued by the container and harness manufacturer. When observing the below mentioned principles, the automatic activation device
may alternatively be installed into kits by dierent manufacturers. Before the installation itself, check the device for mechanical damage of
its parts, including the cables; make sure that the cutter connector is inserted in the device body and secured with a locking screw. proceed
to switch the device on and if everything works correctly, switch it o again. The m
2
multi device body shall be inserted in a pouch sewn to
the bottom of the reserve parachute container in such manner that the cables coming from the m
2
multi body are as close to the parachute
container bottom as possible. Such installation reduces the load on the cables caused by the pressure of the reserve parachute in a closed packed parachute container.
The cables of the m
2
multi automatic activation device shall be installed
in a given order. The thin cutter cable always comes rst. If the set for
installation of the m
2
multi is attached in such a way that after inserting the
m2 multi body into the pouch, the thin cutter cable is below the thick cable,
coil the cables clockwise (when looking from the front). If the set is attached
in the opposite way, coil the cable counterclockwise.
Insert the coiled cable into the prepared space so that it lies as close to the
container bottom as possible and inside the space closed with a velcro.
33
8. Installation
The thick cable of the control unit shall always be stowed as second onto
the already coiled thin cable. If the m2 multi device body is stowed in such a
way that the thick cable is above the thin cable, coil the cable counterclockwise
(when looking from the front). Otherwise coil the cable in the opposite
direction. Both coiled cables shall be xed by a velcro.
When stowing the cables, it is necessary to avoid sharp breaks, knots and
tangling the cables! Stow the cables suciently loose as to avoid any
tension between the individual parts of the device.
Observe the minimum radius for coiling the cables r = 25mm! Breaking
the thick cable may cause damage and result in malfunction of the
m2 multi!
It is also necessary not to pull on the cable, especially on the control and
cutter.
Cable of Control Unit
Cable of Control Unit
Cable of Cutter
NO!
NO! OK!
34
8. Installation
The cables must not be stowed in the pouch determined for the device body, nor shall they be stowed (partially) under the device body. There
is a risk of damaging the cables. Stow the cutter and the control unit in accordance with the Manual provided by the container manufacturer
so that in both cases there is at least minimum space for the cables. Space for cables reduces the changce of damage to the device after
packing and during normal use.
Before a complete installation, read the Manual provided by the container manufacturer carefully.
To secure proper function of the m
2
multi, the closing loop must go through the cutter!
Elastic pouch with Processing Unit
Control Unit
35
8. Installation
8.2. Securing closing loop
Variation 1 Variation 2
1
2
3
45
36
9.1. Cutter replacement
If the m
2
multi device has been activated, there are two ways to restore the device:
a) Complete the form in the Manual, provide a detailed description of the event (activation) and send the form along with the m
2
multi device
to the address of either the manufacturer MarS a.s. or any authorized dealer to perform an overall analysis. In such case the cutter will be
replaced by the manufacturer or authorized dealer and the functional device will be sent back to the user within 14 day of having received
the device.
b) Cutter replacement performed by the user or rigger. When replacing the cutter it is always necessary to work with the device turned o;
work in a clean and dry environment and follow the instructions below. Use TORX T8 screwdriver to loosen and remove the locking screw
(2) securing the cutter (7) connector (1) to the m
2
multi device body (4). Gently pull and turn the connector (1) in any direction and remove it
completely. Make sure that the connecting area on the m2 multi body (4) is free of dirt and that the old sealing o-ring that was a part of the
original connector (1) is removed. Lubricate the o-rings of the new
cutter connector (7) (use any silicone gel, including the silicone used
to treat the reserve parachute closing loop, - ATTENTION! - apply
only a thin layer of the silicone) and check that both o-rings are
undamaged and properly placed on the connector. Insert the new
cutter (7) connector (1) into the m2 multi device body (4) by gently
pressing and turning the connector (1) in any direction until the
connector (1) is completely inserted in the m
2
multi device body
(4). Switch on the device to check proper function. If everything
works properly, secure the cutter (7) connector (1) to the device
body (4) by the locking screw (2). Tighten the screw only slightly.
Never use excessive force if you experience a problem loosening
the screw. Cool the device in the freezer, the contraction and
expansion of various materials will help to loosen the screw. Never
dispose of the used cutter in open re or common waste. The
cutter remains under pressure!
9. Maintenance
37
9.2. Filter replacement
After contact with water, it is necessary to replace the air lter built into the
m2 multi
device body. The lter serves as a barrier providing protec-
tion against contamination. Never use or store the
m2 multi
device without a lter. In case the device gets into contact with water, it is necessary
to perform the following:
- Immediately switch o the device and remove it from the parachute kit container.
- Rinse the whole device including the cables several times in clean lukewarm water.
- Dry the device, and hang it by its metal body (4).
- Let the cables (3 and 5) hang loose and allow the device to dry completely in the air.
- Remove the old plastic lter (6), use a small screwdriver or pliers. Insert the screwdriver directly into the center of the lter (6) and regardless
of any damage to the lter, pull the old lter (6) out of the device body (4).
- Check the lter are (6) for impurities, and if clean insert a new lter (6). It is necessary to insert the lter (6) completely - apply great pressure
to hide the lter body inside the
m2 multi
device body (4). Only the lter intake tube can protrude outside the device body.
- Switch on the device and check its function.
- Dispose of the used lter in common waste or recycle it together with plastic waste.
After any contact of the m2 multi device with water (or any other liquid), it is always necessary to replace the lter even though
the device appears to be functioning properly when dry.
9. Maintenance
38
9.3. Battery
The m
2
multi device is designed to last its whole service life without the need to replace battery. If for any reason the battery fails, it must by
replaced by the manufacturer.
In case the battery indicates for example 1 % remaining, there is no need to worry, there is still enough reserve power. 100 % is displayed only
the rst time the m2 multi is switched on by the manufacturer.
However, if the “Bat LO” indication appears during calibration and the battery is down to 0 %, do not use the device!
9.4. Annual inspection
The m2 multi device must undergo a periodic inspection at least once every 12 months; the inspection is usually performed by the rigger when
repacking the reserve parachute. The inspection shall be recorded in the device Technical Log. The user is always responsible for performing
this inspection and it depends on him whether he performs the required activities himself or whether he has someone else do it.
9.4.1. Inspection procedure
a) Inspect the device visually for any visible mechanical damage, pay special attention to the connection cables, lter, control unit and cutter.
b) Check the battery (under the letter “b” in the device INFO menu, Section 5.4.)
c) Check displayed pressure (under the letter “P” in the device INFO menu, Section 5.4.) Perform the pressure check by comparing it to another
precision instrument that shows barometric pressure. It is also possible to use the actual pressure at the airport. The deviation shall not be
greater than +/-15 hPa.
9. Maintenance
39
10.1. Basic technical data
Total weight ...........................................................................................
approx.
220g
Length, width, height of the processing unit ............................
approx.
85mm x 45mm x 23mm
Length, width, height of the control unit ...................................
approx.
63mm x 18mm x 5mm
Thickness, length of the cutting unit ........................................... thickness 8mm x length 55mm
Control unit cable length .................................................................
approx.
660mm
Cutting unit cable length .................................................................
approx.
500mm
Working temperature (inside the device)...................................
approx.
from -20 °C / -4 °F to +60 °C / +140 °F
Storage temperature - recommended ........................................
approx.
from +5 °C / +41 °F to +25 °C / +77 °F
Water resistance ................................................................................... 24 hours up to 2m / 6.5ft deep
Adjusting landing location altitude ..............................................
approx.
+/- 999m / +/- 2,999ft
Operation time .....................................................................................
approx.
14 hours from activation
Total service life ....................................................................................
approx.
15 years + 6 months or 5 000 ight hours or 15 000 jumps (20 minutes per jump)
Range of use under / above sea level ..........................................
approx.
-500m / -1,640ft to +8 000m / +26,200ft
10.2. Device service life
The total service life of the
m2 multi
device is 15 years + 6 months from the date of manufacture, or a total of about 5 000 ight hours, which is
about 15 000 jumps (maximum 20 minutes per jump start-landing). After the nal assembly and complete operation test of each
m2 multi
device,
the device remains fully functional, including actual deduction of the battery capacity. If during a battery check, a new
m2 multi
device displays the
current capacity 99 % (INFO, letter “b”, Section 5.4.), the number is correct and DOES NOT IN ANY WAY AFFECT THE GIVEN TOTAL SERVICE LIFE of the
m2 multi
device. For a quick and easy check, the device can show the current capacity in %. As long as the capacity is higher than 0 %, the device
will always provide reliable function. In case the capacity drops to zero, the device displays a ashing letter “b” (battery) when switched on during
calibration. However, the device will still be functional. Never use the
m2 multi
device with 0% battery capacity!
10.3. Cutter service life
The cutter service life is 16 years from the date of manufacture. The cutter is marked with the batch code and the last two digits of the year of ma
-
nufacture. Never use an expired cutter.
10.4. Warranty
The manufacturer grants a warranty of 24 months from the date of purchase on all parts used in the
m2 multi
device and its proper operation within
the specied limits. The warranty does not cover damage resulting from normal use of the device, its improper installation or non-standard and
rough handling. The manufacturer reserves the right to decide whether to repair or replace the device.
10. Technical data
40
MarS a.s. dedicated great care and attention to the development, laboratory testing, eld testing and to the m2 multi
device properties. The goal was and still is to provide users with maximum comfort and safety when using the automatic
activation device. All our eorts are directed to the cutter reliability when cutting the reserve parachute closing loop when
its activation criteria are met. Although the device will work properly, it does not guarantee the functionality of the other
parts of the parachute kit. The device itself does not exclude the possibility of severe injury or even death. The device is only
one of the ways to increase the likelihood of resolving a critical situation the user may nd himself in when skydiving. Never
rely solely on the automatic activation device. The basis for safe jumps are quality training, appropriate health condition,
mental abilities, quality equipment for performing jumps from authorized manufacturers and familiarization with the
procedures of dealing with an emergency. Only when these conditions are met, the automatic activation device may help
to increase the likelihood of resolving an emergency, if such occurs. The automatic activation device (AAD) is an electronic
device and as such may not always work properly even when installed and used properly. Using the appliance only reduces
the risk of injury or even death of its user. Shall the user still choose to use the device or provide the device to be used by
another person, this act conrms that he is aware of these risks and consequences associated with the use of this device.
Even when properly used, the device may cause serious injury or death! by using this device, the user commits to use it
as described in this Manual. The manufacturer assumes no liability for damages resulting from non-compliance with the
determined procedures.
The manufacturer, MarS a.s assumes no responsibility for any failures and any resulting damage or consequences. If the
user is not willing to accept these facts, the manufacturer recommends he does not use the device.
11. Disclaimer
41
12.1. X-RAY Card
To Airport Security Personnel:
The device
m2 multi
is a parachute emergency opening system for reserve parachute. The
m2 multi
is a life saving device for skydivers. Display on
the screen (X-ray) may be dierent depending on the parachute container. All parts of device are not subject to any transport regulations. The
m2
multi
parts: 1. central unit, 2. control unit, 3. cutter, 4. control unit cable, 5. cutter cable
X-ray card
Packed in abox
MarS a.s., Okruzni II 239
56943 Jevicko, Czech Republic
mars@marsjev.cz
phone +420461353841
www.m2aad.com
www.marsjev.com
12. Appendices
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