User's Manual
Copyright Grektek Holdings, Inc. 2020 V2.4 July 22, 2020
16
Appendix I EMC Tables (continued)
Guidance and manufacturer’s declaration – electromagnetic immunity
The everbeat system is intended for use in an environment in which electrostatic and electromagnetic
disturbances are controlled. The customer or the user of everbeat can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and everbeat as recommended below.
Immunity Test
IEC 60601
Test Level
Compliance
level
Electromagnetic environment – guidance
Electrostatic
Discharge Immunity
(contact testing)
IEC 61000-4-2
+/- 2 kV,
+/- 4 kV,
+/- 6 kV,
+/- 8 kV
+/- 2 kV,
+/- 4 kV,
+/- 6 kV,
+/- 8 kV
The customer should avoid subjecting the
everbeat watch to repeated electrostatic shocks.
The everbeat system met all IEC 60601-4-2
immunity requirements.
Electrostatic
Discharge Immunity
(non-contact testing)
IEC 61000-4-2
+/- 2 kV,
+/- 4 kV,
+/- 8 kV,
+/- 15 kV
+/- 2 kV,
+/- 4 kV,
+/- 8 kV,
+/- 15 kV
The customer should avoid subjecting the
everbeat watch to repeated electrostatic shocks.
The everbeat system met all IEC 60601-4-2
immunity requirements.
Radiated RF & EMF
Immunity
IEC 61000-4-3
10 V/m
80–2,700
MHz
10 V/m
All IEC 61000-4-3 requirements were met. Note
that portable and mobile RF equipment should
be used no closer to everbeat than the
recommended separation distance applicable to
that equipment. This is a function of the power
and frequency of the transmitter:
D = 1.2 * √P, where P is power in watts
Separation distance (m)
Max power
(watts)
Frequency <
800 MHz
Frequency >=
800 MHz
<=0.1
0.38 meters
0.73 meters
1
1.2 meters
2.3 meters
10
3.8 meters
7.3 meters
100
12 meters
23 meters
Power Frequency
Magnetic Field
Immunity
IEC 61000-4-8
50 Hz, 30
Amps/m
60 Hz, 30
Amps/m
Not
applicable
No special restrictions apply.
All IEC 61000-4-8 requirements were met.
NOTE: These guidelines may not apply in all situations. Electromagnetic propagation is affected
by absorption and reflection from structures, objects and people. Field strengths from fixed
transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios,
amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically
with accuracy. If the everbeat watch is not operating properly when near a source of
electromagnetic energy, move the everbeat watch away from the source, and confirm proper
operation is restored. If not, contact Grektek for assistance via email at help@grektek.com.