KC 100.124 User manual

Benthic Chamber
Model 100.124
Manual
KC Denmark A/S
Research Equipment
Limnology ⚫Oceanography ⚫Hydrobiology

100.124 –Benthic Chamber - Manual
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Benthic Chamber
KC Denmark A/S is not, and cannot be held, responsible for any damage(s) made to
equipment or to operators who ignore safety precautions or because of misuse or wrong
operation.
The below shown devices are very dangerous and may cause serious injury to people. Once
loaded, the two burn wire systems “1”and “2”and the valve “3”holds both units. Breaking
the wire “1”releases the shovel, while “2”releases the lid for the chamber.
The cylinder contains a spring-
loaded mechanism and it is
activated once the hydraulic system
is loaded.
When the hydraulic system is loaded,
ensure that you keep all body parts
out of the shown area.
Burn wire “1”and “2”.
Releasing “1”opens the
valve “3”, so the pistons
closes the shovel.
Item
Preparation
1
Ensure that all batteries are fully charged. Connect the
cables; each battery has engraved identification labels
attached.
2
Raise the lander so that there is enough space for the
benthic chamber below the lower, transverse frame of
the lander.
Mount the rack on the lander frame and fasten it by
means of 4 bolts and locking nuts.
Before deployment, adjust the height of the legs to
determine the chamber’s penetration depth into the
seabed.

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Loading the hydraulic system
3
Do the charging of the hydraulics, while all the
components reside on the frame. Some of the units
was removed from the frame to give a better overview
of the individual components:
The system consists of:
1. Power station
2. U-bracket
3. Locking pin
4. Single acting hydraulic cylinder
5. Bolts
6. 2 pistons, mounted on the shovel, see next item
4
Two hydraulic pistons for the shovel.
5
The power station contains a very strong spring-loaded
mechanism and do not stick fingers or any parts into
the holes as a release causes serious injury/damages.

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6
Ensure that the shafts hole is in correct position.
Hold the single acting hydraulic cylinder “4” in
horizontal position and fasten it with the bolts.
7
Attach the U-bracket “2” and push the locking pin “3”
through both holes in the bracket.
8
Open the valve “3” in vertical position (shown in
horizontal position).

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9
Connect the hand pump and move the handle forth
and back applying pressure to the hydraulic cylinder
“4”.
10
During the pumping, you will charge the spring-loaded
mechanism in the pressure cylinder “1”. Continue
pumping until the piston aligns with the black line.
See also next item.
Do not pump the unit beyond this point.
11
Maximum position for the piston.
Do not pump the unit beyond this point.
12
If the shovel does not move upwards during the
pumping, you may push it upwards by hand or better
with a wooden stick or similar. Take care to avoid
any unattended release, which may cause
serious injury.

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13
Disconnect the pump and remove the single acting
hydraulic cylinder “4”, the locking pin “3” and the U-
bracket “2”, leaving the cylinder as shown.
The Burn Wire System –How It Works
14
The burn wire system operates in such a way that a
voltage between the brass anode (negative) and a
small piece of non-insulated burn wire (positive)
causes a leakage current. When activated, the wire
burns over and triggers a preset function. See page 13
for a schematic.
The benthic chambers come with two individual burn
wire systems:
1. Release of the hydraulic shovel
2. Closing the lid on the chamber
Attach the Burn Wire
15
A template for making correct length of the burn wire.
Insert a wheel and attach the wire. Make a knot and
scrape off the insulation for a distance of 6-8 mm.

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16
Burn wire for closing the benthic chamber.
Raise the lid with the stirrer and attach the loop as
shown.
17
Burn wire “1”for releasing the shovel.
Make sure, that the hydraulic system is charged.
Attach the burn wire “1” and close the valve “3”
(horizontal position).
18
Connect the cables for:
1. The stirrer motor in the chamber
2. Burn wire for the chamber
3. Burh wire for releasing the lander
19
Connect the power cable and the USB cable. Insert the
cable into a PC and install the software.
Start the software and program the parameters for
closing the chamber’s lid and release of the lander
itself (if the acoustic releasers fail).

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Deployment
20
Remove the USB cable. Once you are ready to deploy
the lander, insert the programming plug into the USB
socket on the battery cylinder.
The programmed delay will start with a delay of 1 min.
Maintenance
21
The zinc anodes prevent corrosion and you must
replace worn out anodes.

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100.124 –Benthic Chamber - Manual
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Safety Regulations
KC Denmark A/S is not, and cannot be held, responsible for any damage(s) made to equipment or to
operators who ignore safety precautions or because of misuse or wrong operation.
Disconnect power supply to avoid any unattended operation causing accident to personnel and
winch.
An expert maintenance technician fully familiar with the attendant hazards must only do all maintenance,
inspection and repairs.
Persons charged with working on the lander/benthic chamber and the accessories must be trained
specially for the purpose with special abilities and experience in this area as well as being equipped with
the appropriate tools and individual safety equipment. Failure to meet these requirements constitutes a
risk to personal health and safety and economic damages.
When working on the unit in areas, which are difficult to access or hazardous, ensure to take adequate
safety precautions for the operator and others in compliance with the provisions of law on health and
safety at work.
Replace worn component with original spare parts. Use the lubricants (oil and grease) recommended by
the manufacturer.
This benthic chamber is very dangerous in unskilled hands and you must take serious
precautions to avoid accidents.
KC Denmark A/S is not, and cannot be held, responsible for any damage(s) made to equipment
or to operators who ignore safety precautions or because of misuse or wrong operation.
Rev.: November 21, 2022 - lkj
KC Denmark A/S
Research Equipment
Limnology ⚫Oceanography ⚫Hydrobiology
E-mail: [email protected] website: http://www.kc-denmark.dk/
Holmbladsvej 17-19, DK 8600 Silkeborg, Denmark. Tel. [phone]
Bank: Sydbank. SWIFT: SYBKDK22 - IBAN DK5070460000104832
VAT no. DK 29 61 96 62