User's Manual

No part of the Quanta Smart Wearable ECG Monitoring Device should be placed near portable and
mobile radio-frequency communications equipment. The recommended safety distance can be
calculated using the radio frequency and the following formula.
Radio-frequency
IEC 61000-4-6
Radio-frequency
IEC 61000-4-3
3 V/m
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
[3] V
[3] V/m
Recommended safety distance
d=1.17
P
d=1.17
P
80 MHz to 800MHz
d=2.33
P
800MHz to 2.5 GHz
P is the maximum output of the
transmitter (Unit: Watt)
d is the recommended safety distance
(Unit: Meter)
The field intensity of the fixed RF
transmitter (after an EM site survey)
should be lower than the recommended
values for the above frequency ranges.
Interference may be produced near
instruments that have the following
symbol:
The field intensity of fixed RF transmitters (e.g. radio, mobile phone, ham radio, FM and AM radio
broadcasts and TV stations) cannot be predicted from the frequency alone. To evaluate the EM field
intensity of the environment, an EM site survey may be necessary. If the measured field intensity for a
region exceeds the above recommended range, the device should be observed or checked to make sure
it operates normally. If abnormal operation is observed, further action such as adjusting the direction or
re-positioning of the equipment should be taken.
Attention:
For frequencies between 80 MHz and 800 MHz, use the higher frequency range.
Attention:
These guidelines may not be applicable to all situations. Electromagnetic waves can be absorbed or
reflected by buildings, objects and people.
Recommended safety distance
The following table lists the recommended safety distance between the device and mobile RF
communications equipment.
The recommended EM environment for the Quanta Smart Wearable ECG Monitoring Device is where
RF interference is controlled. The user should maintain the recommended safety distance with the
devices and portable/mobile RF communications equipment listed in the following table (corresponding
to the maximum output of the RF transmitter).
Recommended Safety Distance (corresponding to RF transmitter output)
Maximum output of
RF transmitter (Watt)
150 kHz to 80 MHz
d=1.17
P
80 MHz to 800 MHz
d=1.17
P
800 MHz to 2.5 GHz
d=2.33
P