5-Point Adjustment (Fine) - Sartorius Basicplus Manual

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5-Point Adjustment (Fine)

– Place the test weight in position 1 on the weighing pan. Close the draft
shield and press t to tare the balance.
– Place the test weight in positions 2 through 3 in sequence and write
down the values, with the respective plus or minus sign, displayed at
stability and with the draft shield closed.
Example: (BP210D):
– Adjust only the side with the greatest error; in the example given, this is
position 2 corresponding to the off-center load thumbscrew on the right.
– Change the setting of the thumbscrew in small increments; then check the
off-center loading error again in positions 1, 2 and 3. If, necessary, re-
adjust the setting of one of the off-center load thumbscrews.
– If the off-center loading error on the sides (pos. 2 and 3) is within the
tolerance range, then the off-center loading error at the front and back
(pos. 4 and 5) must be adjusted.
– Place the test weight in position 1 on the weighing pan, close the draft
shield and press t to tare the balance.
– Place the test weight in positions 4 and 5 in sequence and write down
the values, with the respective plus or minus sign, displayed at stability
and with the draft shield closed.
Example: (BP210D):
– Always adjust the thumbscrews uniformly on both sides; i.e., change the
settings of both of the off-center load thumbscrews by the same amount
and in the same direction.
– Change the setting of the thumbscrews in small increments; then check
the off-center loading error again in positions 1, 4 and 5. If, necessary,
re-adjust the settings of the off-center load thumbscrews.
– If the measured values now lie within the tolerance range, please check
the off-center loading error in all 5 positions one more time, just to be
certain.
– After completing the off-center loading error adjustment, replace the plugs
(113) in the openings on the rear of the balance.
– Reactivate the »Auto Zero function 1 6 1 «, if necessary.
– » Reactivate the filling mode 1 2 2 «, if necessary.
SARTORIUS Basic
Pos. 1 t 0.0000 g
Pos. 2 + 0.0008 g
Pos. 3 – 0.0005 g
Pos. 1 t 0.0000 g
Pos. 4 + 0.0006 g
Pos. 5 – 0.0004 g
plus
Semimicro-Balances
17