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The temperature fine fluctuation occurs:
The air from the air conditioner may be blown directly to the balance. Use a breeze break or change the
balance installation site to avoid the direct airflow to the balance from the air conditioner.
The repeatability is bad even if changes in temperature are small:
The air from the air conditioner may be strong. Use a breeze break to avoid the direct airflow to the
balance from the air conditioner. Sources of vibration may exist near the balance.
The repeatability during the day is bad while the repeatability at midnight is good:
Human activities such as opening or closing the door, passing near the balance may influence the
balance. Take appropriate measures to avoid passing near the balance while the balance is in use.
Temporal poor repeatability:
Impact may have been applied to the balance or table on which the balance is installed. Or an
earthquake may have occurred.
Others:
Sudden changes in barometric pressure due to typhoon or building vibrations due to strong winds will
influence the balance.
Environment to install a microbalance
Location
The best location is the first floor of the rigid building built on solid ground. Locations along the coast or
main roads may be influenced by winds and vibrations.
Room
Corners of the rooms or areas near a pillar, far from the passage, door or air conditioner outlet and
where there is no direct sunlight. A weighing table should be solid and made of stone or wood having
low heat conductivity.
Temperature / barometric pressure / static electricity
Changes in temperature in a day: within 4°C
Changes in temperature in a short time: within 0.2°C/30 minutes
Changes in barometric pressure in a day: within 10 hPa
Static electricity: active elimination is required especially for the balance with a minimum display of
1 mg or less which is more prone to static electricity.
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