A&D Weighing EW-12Ki - Manual (Page 33)

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OP-04 Installation
1. Remove the cover of the option slot on the rear of balance by pressing and lowering
it down.
2. Insert the option into the slot and secure it with the screws attached.
11-2. OP-07 Underhook assembly
By attaching the underhook assembly to the bottom of the balance, large objects that
are difficult to load on the weighing pan can be weighed in suspension, and the
specific gravity of objects may be measured.
‰ OP-07 is available for use with the EK-6000i / 12Ki / 4100i / 6100i and EW-12Ki
balances only.
‰ The calibration with a weight being hung on the hook is required for
an accurate weighing.
OP-07 Installation
Remove the cover on the bottom of the balance, and screw the underhook assembly
into the mounting hole.