Chapter 1 Read these instructions before use
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1-2.
Cautions and instructions on use
(1) Do not drop anything on the instrument, jump on it, or drop it.
(2) Do not wipe the instrument using thinner, benzene, or other solvents.
(1) Do not use the instrument near a heat source or steam, or in a place exposed to direct sunlight or air-
blow from an air conditioner.
(2) Do not use the instrument in a place exposed to excessive shock or vibration, or near any devices that
emit strong electromagnetic waves (e.g. microwave ovens).
(3) Use the instrument on a level, stable place which is rigid enough to sustain the load.
(4) Use the instrument in the specified operating conditions. (Operating conditions: 0°C to +40°C, 30% RH
to 85% RH)
Note that, even in the specified operating range, measurement results may become inaccurate under
the following conditions where condensations occur.
1) When the instrument has been used or stored in a humid environment for a long time.
2) When the instrument has been exposed to sudden temperature change even if the humidity is low
(e.g. cold water has been splashed over the instrument).
3) When the instrument has been used in an atmosphere exposed to cold air (from a refrigerator
etc.), steam, or water vapor.
(5) When checking the installation condition of the platform, do not apply excessive loads, for example, by
rotating the platform clockwise and counterclockwise.
(6) After removing the samples on completion of measurement and before placing the next samples, check
the reading has returned to zero.
(1) Do not use any dry batteries other than alkaline batteries or manganese batteries.
(2) Upon replacement, set the batteries in place according to the specified polarities (+, -). Otherwise, the
instrument may break down.
(3) Do not use an alkaline battery together with a manganese battery. If those batteries are used together,
the batteries may leak or rupture.
(4) Replace the batteries as soon as the low battery sign [bAt] appears.
Replace all the batteries with new ones at a time. A mixture of an old battery may cause a battery leak
or significantly reduce the life of the batteries.
(5) If you do not use the instrument for a long time (about 1 month or more), remove the dry batteries from
the instrument. Otherwise, a battery leak may occur, thus resulting in the corrosion inside the instrument.
(6) When using the AC adaptor (option), be sure to remove the batteries from the instrument. Never use the
AC adaptor and batteries at the same time.
(1) Do not use any batteries other than those designated by Yamato Scale.
(2) If the low battery sign appears, immediately charge the battery. If the battery drains fast, replace it with
a new one.
(3) To replace the battery, insert the connector in the specified direction. Otherwise, the instrument may get
damaged.
(4) If you do not use the instrument for a long time (about 6 months or more), charge the battery. Even if the
instrument is not used, the battery drains, which may disable the instrument.
(5) If the battery continues to be charged after being fully charged, the battery may become deteriorated.
The execution of proper measurement is required in the Measurement Act. Ensure to inspect the instrument
and conduct the weight check at the start of the operation.
Rechargeable battery (for models with rechargeable battery ”J-101W(D)-RB”)
Dry batteries (for models using dry batteries “J-101W(D)”)
Causes of poor measurement
Causes of failure
Please inspect the instrument at the start of the operation
