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7. Important limits and limit modes
7.1. Use in pressurized aircraft
The m
2
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 m
2
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 m
2
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 m
2
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 m
2
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 m
2
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 m
2
multi modes and functions are illustrated and described in detail.
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