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11. TROUBLESHOOTING
Displayed values are unstable.
The BM series has a high weighing sensitivity and is influenced by the measurement environment.
Measures to take
Referring to “3. PRECAUTIONS BEFORE USE”, check the measurement environment for
sources of drafts, vibration and static electricity.
The BM series is prone to low-frequency vibration such as shaking buildings. Particularly,
earthquake, wind and changes in the barometric pressure influence measurements. To avoid
vibration, install the balance on the first floor, in the corners of rooms (close to pillars or walls) far
from a passageway.
We recommend that you use the tabletop breeze break (AD-1672) to avoid drafts.
We recommend that you use the anti-vibration table (AD-1671) to avoid vibration.
We recommend that you use the built-in static eliminator of the BM series if the cause of the
unstable values may be due to static charges.
Repeatability of the measurement values is low. The measurement values are not correct.
Measures to take
Referring to “3. PRECAUTIONS BEFORE USE”, check the measurement environment. Using a
weight,
measure the balance repeatability and check the balance performance.
Referring to “9-3 Example Causes of Measurement Errors”, check the measurement
environment for causes of errors.
Balance error displays
Refer to the BM series instruction manual.
Handling water-absorbent sheets
When the water-absorbent sheet inside the sample cup has absorbed a large amount of water,
the surface area of the water may increase, which in turn may increase the amount of
evaporation.
Replace the sheet with a dry one when appropriate to make accurate measurement possible.
