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● Do not use the instrument on a point where there is excessive vibra-
tion. In addition, to avoid excessive impact on the instrument, it should
be handled gently. Failure to observe this may cause breakdown.
● Accurate measurement data may not be obtained in the following
cases.
• When ambient light (e.g. panel light, fluorescent light, infrared heat
lamp, direct sunlight) is too strong
• When influenced electromagnetically by other electronic devices
(e.g. near electrical appliances like TV, medial device)
• When a mobile telephone is used during measurement
● This instrument has a built-in battery. Do not disassemble the instru-
ment to replace the battery.
● Use the Charger unit (JM-A30) and AC adapter (JM-A31) that are
supplied with the instrument.
● The Charger unit (JM-A30) and AC adapter (JM-A31) are solely de-
signed for use with the JM-103, so they must never be used with any
other instrument.
● This instrument emits intense light to take measurements. Measure-
ments should only be taken of the forehead or sternum, and the in-
strument should never be allowed to emit light directly into the eyes.
● If the instrument gets dirty, wipe it with a dry cloth or a cloth moistened
with mild, neutral detergent. (Never use a solvent such as thinner or
benzene to clean the instrument, since it may dissolve its casing.)
● The measuring probe should be cleaned by wiping with medicinal al-
cohol before use.
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