Ohaus NBF1A2 Navigator Balances - Manual (Page 89)

26
TM
4.11 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 accesses to all menus which have had LOCK turned ON includ-
ing CAL, UNITS, MODE and GLOBAL. 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 under the security plate.
• Remove the security screw and plate. See illustration
for location and switch settings. The switch is re
cessed about 1/2 inch and is accessable through a
slot in the printed circuit board. Use a small screw
driver or a thin rod to move the switch setting. A pa
per 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.
BOTTOM OF BALANCE
LOCK SWITCH
LOCATION
ON OFF
4.12 Weights and Measures Sealing
After a weights and measures official has tested and
approved the balance, it must be sealed by installing the
security plate with the security screw.
Lead and Wire Seal
A lead and wire seal may be passed through the hole in
the screw head and a tab on the plate.
Lead and Wire Sealing
LEAD SEAL
SECURITY PLATE
SEAL
Paper Sealing
Paper Seal
A paper seal may be placed over the screw and security
plate.