Ohaus NBF1A2 Navigator Balances - Manual (Page 40)

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4.12 Menu Lock-Out Protection
Access to the various menus can be disabled by setting the Lock Switch located on the printed circuit board inside of
the balance to ON position. The Lock Switch locks out all menus which have had LOCK turned ON. The default
setting for the Lock Switch is OFF.
Procedure
• Turn the balance off and unplug the power cord.
• Remove the pan and pan support.
CAUTION
In the next step, do not rest the balance
on the pan support cone.
• Turn the balance over.
• The Lock Switch is located towards the front of the
balance. See illustration for location and switch
settings. The switch is recessed about 1/2 inch and
is accessable through a slot in the printed circuit
board. Use a small screwdriver or a thin rod to move
the switch setting. A paper clip opened up will work.
Remember, this switch when set on will lock all
menus parameters which have the Lock set ON.
• Select the desired position on the Lock Switch, turn
the balance in an upright position, install the pan
support, pan and reconnect power.
Lock Switch Location and Settings.
4.13 Weigh Below
A weigh below hook is located at the bottom of the
balance. To use this feature, remove power from the
balance and remove the protective cover underneath the
balance. See illustration for location.
There is a flat,
slotted, metal plate in
the balance where a
wire may be looped to
and attached. The
balance can be
supported by any
convienent method,
ring stand, lab jacks,
etc...
Make sure that the
balance is level and
secure. Attach a wire
to the slotted support
in the balance. Apply
power and operate the
balance. Attach items
to be weighed to the
wire just installed
underneath the
balance.
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