Adjustment Of Overload Stop; Checking The Overload Stop; Adjusting The Overload Stop - Sartorius Basic plus Service Manual

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Adjustment of overload Stop

The overload stop only needs to be checked after the strain gauge system is
replaced.

Checking the Overload Stop

- Open the balance (see page 27).
- The gap between the overload stop (202a) and the lower end position on
a non-loaded system can be up to (202,205):
0,1g strain gauge system (202) (e.g. BP 610) 0,4mm to (maximum 0,5mm)
1g strain gauge system (205) (e.g. BP 4100) 0,7mm to (maximum 0,8mm)
- Check this gap with the appropriate gauge.
- If the gap exceeds the given tolerance range, adjust it as described below.
- If the position of the overload stop is correct, proceed with the following
adjustments:
Zero point offset value (see page 20),
Off-center load (see page 22),
Linearity (see page 25) and
External adjustment/calibration (see page 25).

Adjusting the Overload Stop

- Open the balance (see page 27).
- Loosen the nut (202b) for the overload stop so that the overload stop can
be moved.
- With the balance unloaded, move the overload stop (202a) so that the
gap between the overload stop (202a) and the lower end position is:
0,1g strain gauge system (202) (e.g. BP 610) 0,4mm to (maximum 0,5mm)
1g strain gauge system (205) (e.g. BP 4100) 0,7mm to (maximum 0,8mm)
- Check this gap while adjusting, using the appropriate gauge.
- Once the gap is correct, fix the overload stop (202a) in this position by
tightening the nut (202b).
- Then check the overload stop (202a) again as described above.
- If the position of the overload stop is correct, proceed with the following
adjustments:
Zero point offset value (see page 20),
Off-center load (see page 22),
Linearity (see page 25) and
External adjustment/calibration (see page 25).