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Motus Reference Manual
Page 48 of 146
Version 1.1
29/11/2019
11.12.2 Water
Motus Rugged is water-proof to the IP67 standard which means that it can be
submersed in water to a depth of up to 1 metre only. Submersion to depths beyond 1
metre can cause water entry and destruction of the internal electronics.
11.12.3 Salt
Motus Rugged is made from marine grade aluminium which gives it reasonably good
salt water corrosion resistance. However Motus Rugged cannot tolerate extended
periods of time in salt water environments. After any contact with salt water
environments, Motus Rugged should be thoroughly rinsed with fresh water.
11.12.4 Dirt and Dust
Motus Rugged is completely sealed against dirt and dust entry. It is important to note
that this is only the case when the connectors are mated. When un-mating the
connectors if the Motus Rugged unit is dirty or dusty, the dirt should be rinsed off with
fresh water first and then dried off. This is to prevent dirt or dust entering the
connectors which can cause them to fail.
11.12.5 PH Level
Environments with a high or low PH level can cause the Motus Rugged enclosure to
corrode. If Motus Rugged comes into contact with these environments it should be
rinsed in fresh water as soon as possible. It is not recommended to operate Motus
Rugged in non neutral PH environments.
11.12.6 Shocks
Motus can tolerate shocks to 2000g, however continuous shocks of this severity are
likely to cause premature failure. Shocks above 2000g can effect the factory sensor
calibration and degrade performance. Normally shocks to Motus when mounted in a
vehicle are fine. Even a high speed car crash is likely to reach a peak of only 50g.
Shocks directly to Motus Rugged's enclosure can more easily go over the limit however
so care should be taken when handling the unit prior to mounting.