User manual |
Orbit 3100/3300/3500/3400/3600 Camera
11
The membrane tends to bulge; press with a finger. Optionally, remove the membrane and fill
with silicone oil/antifreeze (only 100% pure glycol, any contamination will cause gas bubbles
in the membrane). The silicone oil/antifreeze is to prevent the pressure sensor to be exposed
to seawater and to prevent corrosion on the sensor. See picture 6 for illustration.
Picture 6: Removal of membrane
Place the membrane back into the camera and note the orientation; the membrane has an up-
and a down side. If the membrane is damaged, it must be replaced. The glycol should
preferably float slightly above the membrane and a minimum of air should be under it. Make
sure the membrane is placed directly on its place and no parts are wrinkled.
Picture 7: Placing of membrane
Screw the lid back on and make sure not to over tighten, as the lid will cut the membrane.
Picture 8: Pressure sensor lid
Test if the membrane is properly in place with a small Allen key with rounded end.
When the key is gently pressed down, it should not hit directly on hard surfaces, but give
counter pressure. Neovision or monitor should display depth when the key is pressed down.
Do not press down harder than -3M, as the key can damage the membrane.
Picture 9: Testing of the pressure sensor
