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4. NOTES ON USE
• This instrument should be used under the following operating condi-
tions.
• Temperature of 0 to 40°C (32 to 104°F), relative humidity of 30 to
85%, with no condensation.
• Atmospheric pressure of 700 to 1060 hPa (altitude of –400 to
3000m).
• This is a precision instrument. To avoid the possibility of it being dam-
aged, the instrument should not be dropped nor should heavy objects
be placed on top of it.
• Do not expose this instrument to rain and water.
• This instrument has no alarm function. Do not use this instrument if an
alarm function is necessary.
• This instrument is designed for use on adults. When using the instru-
ment on infants or babies, please note that the designed measurement
accuracy cannot be guaranteed.
• 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 body movement is excessive
• When the probe is not attached properly
• When blood circulation at the measuring point is poor (due to pres-
sure on arm/finger, peripheral circulatory insufficiency)
• 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, medical device)
• When a mobile telephone is used during measurement
• When influenced by abnormal hemoglobin like carbon monoxide he-
moglobin (HbCO) and methemoglobin
• When pigments such as cardiogreen, intravascular dyes and indo-
cyanine green are present in the blood
• When fingernails are polished
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