Copyright © 2011-2013 SM2M+ User Manual
13
Sealing the Housing
Warning:
The SM2M+ ships with no O-rings installed, with
no O-rings the unit will not seal and is unsuitable for
deployment at any depth.
The housing is sealed using two O-rings on the top cap. This is a
redundant system, only one O-ring is necessary to seal, but two
are used to assure a seal if one should become compromised. The
O-ring seal is designed for depths far greater than the rated depth
of the housing, so with proper installation the unit is sure to seal
at any depth.
Preparing the Top Cap
It is extremely important that the O-rings be clean, free of defects
and properly lubricated. Take the O-rings and apply a small amount
of the included lubricant. Apply around the entire O-ring, feeling
for defects with your fingers as you apply. Insert the O-rings on
the cap as shown.
