Shinko Denshi CT1602, Руководство по эксплуатации, Страница: 10 / 38

7
1-2-4 Precautions on the Main Unit of the Balance
Precautions
on Use
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A transparent dust cover, supplied for some models, may be statically
charged under low humidity conditions, which may cause unstable
readinig. In such case, wipe the dust cover with a damp cloth or use a
commercial antistatic agent. Otherwise, simply operate the balance with
the dust cover removed.
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For more stable measurement, it is recommended to have 30 minutes
warm up time after power-up, and apply a load equivalent to the weighing
capacity several times before conducting actual measurement operation.
Calibration
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Periodically calibrate the balance with an internal or external calibration
weight to ensure accurate measurement at all times.
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For more precise calibration, use an external calibration weight that
approximates the weighing capacity. Moreover, calibrate the balance
only after enough warm up time and loading near capacity weight.
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Calibration is also required in the following cases:
When operating the balance for the first time,
When not using the balance for a long time,
When relocating the balance, or
When there is wide fluctuation in temperature, humidity or atmospheric
pressure.
Maintenance
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When the measuring pan or pan base is contaminated with powder or
liquid, erroneous weight values may result or indications may remain
unstable. Therefore, be sure to frequently clean the balance. When
cleaning the balance, be very careful not to allow dirt or liquid to penetrate
inside (the mechanism part).