Operating instructions

9
Leveling
B-S balances have a spirit level and two adjustable leveling feet to compensate for slight irregularities in the
surface of the weighing bench. The balance is exactly horizontal when the air bubble is in the middle of the
level glass.
Procedure
Adjust the two leveling feet appropriately until the air bubble comes to rest exactly in the middle of the glass:
Air bubble at “12 o'clock” turn both feet counterclockwise
Air bubble at “3 o'clock” turn left foot clockwise, right foot counterclockwise
Air bubble at “6 o'clock” turn both feet clockwise
Air bubble at “9 o'clock” turn left foot counterclockwise, right foot clockwise
Note
The balance should be leveled and adjusted (Section 2.4) each time it is moved to a new location.
Preparations for weighing below the balance
To carry out weighing operations below the balance, the special cover on the underside of the balance must be
slackened (care: when doing this the balance may only be laid on its side, not turned upside down!), turned
through 180° and retightened. This exposes the opening for the hanger, making weighing below the balance
possible.
Connecting the power supply
➞ Before connecting the AC adapter, check that the voltage printed on it corresponds to the local mains
voltage. If this is not the case, please contact your local METTLER TOLEDO dealer.
➞ Plug the AC adapter into the AC adapter socket on the balance, and connect to the power supply.
➞ The balance performs a self-test. This test is finished when “OFF” appears.
➞ Press the «On» key briefly: the balance is in operational readiness. Before any work is performed with the
balance, it must be adjusted (Section 2.4).
Notes
To achieve accurate results with analytical balances (AB-S), these must be connected to the power supply for
at least 60 minutes to warm up to operating temperature before the first weighing operation is carried out.
An optional AccuPac B-S (rechargeable external battery) can be used to operate all B-S balances independent-
ly of the mains power supply