ALEXA 35 Housing Setup
Page 36
Seal Check
✓
Seal Check Manual. Follow the procedures in the Seal Check manual for
verifying integrity of the housing.
✓
Seal Check both Housing and external monitor. The external monitor also has a
Seal Check fitting. After drawing a vacuum on the camera housing, note the
vacuum level on the gage.
Next, move the Seal Check hose to the external monitor. Draw a vacuum close
to that of the camera housing. Remove and plug the Seal Check fitting on the
external monitor.
Move the Seal Check hose back to the camera housing and start the monitoring
process.
Why do this?
The LCD cable is water blocked but not air-blocked. After drawing
vacuum on the external monitor air passes from there to the camera housing until
the vacuum is equalized. By drawing a vacuum on the external monitor, very
little air must pass between the housings
so the ‘settling’ process and
determination of housing integrity takes far less time.
CAUTION.
ENSURE THE FITTING PLUG IS INSTALLED PRIOR TO SUBMERSION!
FAILURE TO DO SO WILL RESULT IN A FLOOD.
