A&D A & D Analytical Balance GH-120/GH-200/GH-300/GH-202/GH-252 - Manual (Page 59)

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13. Underhook
The underhook can be used for magnetic materials or density measurement. The built-in
underhook is revealed by removing the cap on the bottom of the balance. Use the
underhook as shown below.
Caution
Do not apply excessive force to the underhook.
When not in use, attach the cap to prevent dust
from getting into the balance.
Do not push the underhook upward
When turning the balance over, the weighing pan,
pan support, breeze break ring and dust plate
will fall off. Remove them first.
When the cap is removed, a weighing error may
occur, because of drafts entering into the
internal portion of the balance. Arrange the room
condition.
1 Remove the cap on the bottom of the balance.
2 Hang your weighing pan on the underhook.
Place the balance on the solid table.
Underhook
Cap
Bottom
Solid table
Weighing pan