71.500 - Multi corer - Manual
13
Troubleshooting and maintenance
26
When using the corer, you might encounter problems with the sampling.
If the sediment is too soft, it will not be able to take a correct sample, as you will need a
"bung" of hard(er) sediment to hold the sample inside the core tube. Otherwise the soft
sample will seep away because of the small space of app. 1 - 2 mm between the bottom of
the sample tube and the moveable closing mechanism. (Will depend on the change of
temperature from sea deck to bottom of the sea).
If the depth of penetration is too low, it will be necessary to add more weights to the
weight station at the top of the rack.
When you raise the sampler, it is important to have a reasonable weight on the rack to
ensure the closing mechanism will work correctly. If the weight of the rack is too small and
you raise the sampler, the rack will begin to rise before the closing mechanism has locked
and secured the sample. Please add more weights to the rack.
For a smoother operation we recommend regularly use of silicone grease on the vertical
bars, where the parts move up and down.
Rev. January 23, 2020 - lkj
KC
Denmark
Research Equipment
Limnology
⚫
Oceanography
⚫
Hydrobiology
Holmbladsvej 17-19, DK 8600 Silkeborg, Denmark. Tel. +45 86 82 83 47. Fax +45 86 82 49 50
Bank: Sydbank. SWIFT: SYBKDK22 IBAN DK5070460000104832
VAT no. DK 29 61 96 62
