Sequoia LISST-100X, Руководство пользователя

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122 LISST-100X User’s Guide
BioBlock Battery replacement
The BioBlock uses two standard Alkaline D cells to power its operation. The following
procedure can be used to replace the batteries. It is recommended that the batteries be
replaced before each extended deployment and that the procedure is carried out indoor on a
workbench.
The following tools are needed:
Screwdriver.
2 Alkaline replacement D cells.
O-ring grease (if O-ring needs greasing).
Spare O-ring is O-ring needs to be replaced (spare O-rings ship with each BioBlock).
Step 1) Disconnect the cable attaching the BioBlock to the LISST-100X at the BioBlock.
The BioBlock can remain connected to the LISST-100X if desired.
Step 2) Remove the three screws holding the connector endcap to the main body of the
BioBlock. These screws are 4-40UNC socket head cap screws that are 5/8 inches long.
Step 3) Carefully remove the endcap from the main body by gently pulling on the endcap
with a slight twisting motion. Be careful not to pull the assembly out too far. Wires connect
this endcap to the internal circuitry and therefore the travel is limited.
Step 4) The two batteries are held in place by a battery mount attached to the connector
endcap. Remove the batteries and replace with fresh alkaline batteries. If desired wrap
each battery with electrical tape to keep it in place during installation. Please note that the
battery mount is flexible and when inserted in to the housing the squeeze on the batteries
will increase to insure a good connection. Make sure that the tape does not impede the
batteries from sliding and making good contact.
Step 5) Check the O-ring on the connector endcap. The surface should be clean and free
of cuts. If needed, add a very light coating of O-ring grease to make assembly easier. The
O-ring is a Parker O-ring #2-133.
Step 6) Carefully slide the battery assembly into the housing. It should be possible to rotate
the assembly after installation to line up the screw holes.
Step 7) Install the three screws holding the endcap in place. Tighten the screws to just
slightly tighter than finger tight. The sealing of the endcap is *NOT* dependent on the
tightness of the screws. Since the metal screws are threaded into plastic it is easy to over
tighten the screws and strip the threads in the housing. Do not over tighten the screws .
Step 8) Reattach the cable to the LISST-100X and test the operation using the BB 11 and
BB 10 commands. The commands can be issues through the Terminal window of the
LISST-SOP software.