Boxym bpw1 - 8 Manufacturers Declaration of the EUT

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value.
Blood pressure difference between wrist and upper arm
Normally, the measured blood pressure value will appear deviation between wrist and upper
arm of a healthy person in a quiet state. [The difference is within ± 10mmHg ( ± 1.3kPa)].
However, if measured immediately after exercise or bathing, the change of the difference in blood
pressure between wrist and upper arm is large due to large changes in blood circulation.
Correct the measurement position
When the height position of the wrist and the heart is not the same, due to the weight of blood,
the blood pressure value will change. When the wrist is positioned higher than the heart, the
measured blood pressure value is low; when the wrist position is lower than the heart, the
measured value will be high [each 10cm height difference, about 8mmHg (1kPa)] . But because
blood pressure measuring are closely related to he posture, so it does not necessarily change in
accordance with this value. Be sure to consult the correct measurement posture (see section 5.1).
Daily life and wrist blood pressure
Usually around diet, the upper arm and wrist blood pressure does not have a huge d
ifference. When bath in the high temperature water, due to the heated skin caused blood
vessels shrinkage, the blood pressure rises. But if bathing in warm water, it will expand p
eripheral vascular, decreased blood pressure, this time, the wrist blood pressure will decrea
sed bigger than the arm blood pressure.
8 Manufacturer’s Declaration of the EUT
Guidance and manufacturer´s declaration – electromagnetic emission –
for all EQUIPMENT AND SYSTEMS
1
Guidance and manufacturer´s declaration – electromagnetic emission
2
The product is intended for use in the electromagnetic environment specified below. The customer or the user
of product should assure that it is used in such an environment.
3
Emissions test
Compliance
Electromagnetic environment - guidance
4
RF emissions
CISPR 11
Group 1
The product uses RF energy only for its internal function.
Therefore, its RF emissions are very low and are not likely to
cause any interference in nearby electronic equipment.
5
RF emissions
CISPR 11
Class B
The product is suitable for use in all establishments, includin
g domestic establishments and those directly connected to the p
ublic low-voltage power supply network that supplies building
s used for domestic purposes.
6
Harmonic emissions
IEC 61000-3-2
N/A
7
Voltage fluctuations /
flicker emissions
IEC 61000-3-3
N/A
Guidance and manufacturer's declaration – electromagnetic immunity –
for all EQUIPMENT and SYSTEMS
Guidance and manufacturer´s declaration – electromagnetic immunity
The product is intended for use in the electromagnetic environment specified below. The customer or the user of the
product should assure that it is used in such an environment.