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In-situ photos

Lander with Benthic Chamber and Syringe Station

Lander with benthic chamber and multi water sampler
Lander with a benthic chamber and a multi water sampler with 12 syringes:

A lander system for 6000 m depth with a benthic chamber (closed by hydraulic) and a multi water sampler with 12 syringes. The water sampler has reverse functionality, i.e., one or more syringes is useable in reversed order for injection of preservation liquid or different tracers (e.g., labelled Carbon and Nitrogen) or similar into the benthic chamber, either on start of the sampling or later during the process.

Manufactured from 2 meter Ø28 mm stainless steel tube, mounted on a floatation rack with 3 pcs of powerful springs, manufactured from AISI 316 stainless steel, 2 pcs/each.

Benthic chamber:
Hydraulically driven shovel for recovery of the incubated sediment core. More details can be found here.

Multi water sampler:
12 syringes, 50 ml each. More details for a similar model can be found here.

Safety bolt:
- for antenna 2 pcs/each
- Flash holder, complete, manufactured from green polyethylene (PE - HD).
- ST400A XENON FLASHER for 6000 m depth
- VHF Radio Beacon, transmitter
- Beacon receiver.

Beacon holder:
Complete, manufactured from green polyethylene (PE-HD) and AISI 316 stainless steel.

Floatation rack:
Made of aluminium tube 50 x 50 x 4 mm, prepared for 2 pcs acoustic release transponder system and syntactic foam.

Catch ring:
Ø50 cm diameter, manufactured from AISI 316 stainless steel, mounted on the floatation rack.

Lower frame:
Manufactured from aluminium tube 50 x 50 x 4 mm with 4 adjustable legs and prepared for burn wire release system.

Burn wire release system:
Manufactured from laser cut AISI 316 stainless steel and holder for acoustic release transponder.

Ballast system:
4 pcs manufactured from aluminium, I.D. Ø26 cm.
4 pcs bracket and 4 pcs acrylic tube for protecting ballast chain
4 pcs adjustable holders for acoustic release transponder made of AISI 316 stainless steel and Polypropylene Plastic.

Lander with a benthic chamber and a multi water sampler with 12 syringes.
In-situ photo, the lander is retrieved from the sea.
In-situ photo.
The benthic chamber's lid with the stirrer motor, probes and manifold for the multi water sampler.
A hydraulic piston closes the benthic chamber and secures the sediment sample.