The hydraulic damper
18
The multi corer has an automatic, hydraulic
damper located at the centre.
Upon lowering to the sea, the damper is filled
up with water through the inlet
“K”
When the multi corer hits the seabed, the water
is forced through the outlet “L”,
causing a delay
before the tubes penetrate the sediment.
Deployment
19
The multi corer is now ready for deployment.
When the rack is outside the bulwarks, you can
remove the safety clamps
“1”
.
The photo shows an old model with 2 safety
clamps.
If you must remove the security clamp while
the sampler is on deck, you must avoid an
unattended release to protect against injury.
20
The sampler can now be deployed to the
seabed, and the hydraulic damper will ensure a
smooth sample taking to avoid a shock wave
during penetration.
When hoisting the sampler the sediment tubes
will be withdrawn from the sediment, and the
lids will close to protect the samples from exit.
