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To reduce errors caused by water temperature
Use the correct Z factor. To obtain the correct Z factor, measure the water temperature using the
accessory thermometer and enter the value in WinCT-Pipette.
For a stable water temperature, allow the temperature of the test liquid to acclimatize to the
measurement environment for an appropriate duration of time (ISO 8655 recommends two hours
or more) before measurement.
Vibration
Vibration yields unstable measurement values.
To reduce errors caused by vibration
Install the balance in a stable place avoiding vibration and shock. Use a solid weighing table that is
free from vibration.
If the installation site is the second floor or higher, use the anti-vibration table.
Airflow
Airflow in the measurement environment yields unstable measurement values
To reduce errors caused by airflow
Install the balance where it is not affected by heaters or air conditioners or where no drafts exist.
Because the BM series has an especially high weighing sensitivity,
use much care in choosing an
installation site or cover the weighing unit.
Operator
An operator’s pipetting technique influences measurements.
To reduce errors caused by the pipetting technique
Learn and use the correct pipetting technique.
