Ohaus NBF1A2 Navigator Balances - Manual (Page 10)

10
2.5 Connecting Power and
Communications
AC Power Operation
Connect the cord from the AC Adapter supplied to the
connector located at the rear of the balance. Connect the
AC Adapter to an appropriate power source.
Battery Operation
The balance can be operated using 8 AA alkaline batter-
ies (not included). The battery compartment is located on
the bottom of the balance. To install batteries, proceed as
follows:
• Remove the pan, subplatform, and wind shield.
• Turn the balance over. Do not rest the balance on
the cone.
• Press the tab on the battery cover inward and lift the
cover off.
• Remove the battery holder.
• Install the 8 AA alkaline batteries in the battery holder,
orienting the plus (+) and minus (-) ends as indicated
on the holder.
• Replace the battery holder in the compartment. Make
sure the snap connector is connected.
• Replace the battery cover.
• Turn the balance over and replace the wind shield,
subplatform and pan.
Communication Connections
When an optional printer or computer is going to be used
with the balance, connect an Ohaus RS232 Interface
Cable to the connector at the rear of the balance and the
external device. Refer to paragraph 5.7 Accessories for
cable information and part numbers.
NOTE: A standard RS232 cable cannot be used as the
pin connections are different.
The balance is now ready for operation.
Security Bracket
A security bracket (molded in base) is provided at the
rear of the balance which allows the balance to be
secured by the optional cable and lock accessory.
Rear of Balance
AC Adapter Connection
RS232 Connector
Security Bracket
Bottom View of Balance
2.6 Leveling the Balance
Exact horizontal positioning and stable installation are
prerequisites for repeatable results. To compensate small
irregularities or inclinations at the location, the instrument
can be leveled.
For exact horizontal positioning, the balance is equipped
with a level indicator located at rear.
Position the balance in the intended
operating location. Adjust the leveling
feet until the air bubble in the indicator
is centered.
NOTE: The instrument should be leveled each time its
location is changed.