Please refer to the ISOTTA PORT CHART for a range of compatible ports: the housing is
supplied without ports that can be purchased separately depending on the lens used.
IMPORTANT: ports needs to be mounted on land in the open air.
1. Inspect the O-rings for any damage and lightly coat them with ISOTTA lubricant
before placing it back into its groove.
2. Verify that the porthole of the housing is clean and free from foreign material.
3. The port is inserted and removed through a bayonet mount and the housing is
provided with a safety for a tight seal. Check that the safety port block lever is on OPEN.
4. Align the mounting indicators (white circles) on both the port and the housing.
5. Gently push the port into the opening of the housing, until it cannot go in any
further and screw clockwise (to the right) by applying a light pressure on the housing
until the closure is complete. Lock the port with port lock lever on the housing.
6. To remove it simply unlock the safety by turning the lever to open the lock and
unscrew the port counterclockwise (to the left) until the mounting indices of the
port and the housing are aligned and gently extract the port.
It is possible to replace the port in the open air after the removal of possible water
drops on the surface of the housing.
You can also mount different brands ports on request via adapter rings. When using
the adaptor rings the safety lock function is lost.
NOTE: at rst usage there may be resistance when turning the port.
Make sure O-rings are well lubricated. Double O-rings might generate resistance. If you
cannot turn the port, check that both O-rings are inserted and in place and that the port
is attached entirely to the housing. If so, hold rmly the housing, while you turn the port
with both hands to turn the port.
N.B. The portholes must be replaced in the open air. Do not leave the porthole mounted
for a long period of time. Use preferably Isotta ports for maximum performance of the
housing. Do not use solvents on the port. To clean them you should use a microber
cloth. If necessary, you can use mild soap only on the external side.
MOUNTING THE PORT
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