Micron Gemini
0729-SOM-00004-01
Page 31 of 46
Pressure Sensor Maintenance (300m only)
300m rated Micron Gemini sonars are fitted with a pressure sensor. This sensor requires
regular maintenance to inhibit the opportunity for crevice corrosion and salt build up within the
pressure sensor port.
To maintain the pressure port, first unscrew the seal screw with the S12759 Socket Tool
provided (as illustrated).
Check for evidence of any salt deposit and / or corrosion being initiated (i.e. pitting or
crevicing).
Gently clean around the port with a damp soft cloth or cotton bud.
Check the O-Ring fitted to the PSI Seal Screw (S12754) for damage and if required unseat
and clean around the periphery of the seal face.
Refit the Seal Screw using the Socket Tool; this requires ‘
finger tight
’ torque only to ensure
the face and O-ring are flush down to the endcap face.
