Specification
● 34
Guidance and Manufacturer’s Declaration – Electromagnetic
Emissions
Guidance and manufacturer’s declaration – electromagnetic emissions
The Nox T3 system is intended for use in the electromagnetic environment specified below. The customer or the
user of the device should assure that it is used in such an environment.
Emissions test
Compliance
Electromagnetic environment – guidance
RF emissions
CISPR 11
Group 2
The Nox T3 device must emit electromagnetic energy in order to perform its
intended function. Nearby electronic equipment may be affected.
RF emissions
CISPR 11
Class B
The Nox T3 system is suitable for use in all establishments, including
domestic establishments and those directly connected to the public low-
voltage power supply network that supplies buildings used for domestic
purposes.
Harmonic
emissions
IEC 61000-3-2
N/A
Voltage
fluctuations/
flicker
emissions
IEC 61000-3-3
N/A
Guidance and Manufacturer’s Declaration – Electromagnetic
Immunity
Guidance and manufacturer’s declaration – electromagnetic immunity
The Nox T3 device is intended for use in the electromagnetic environment specified below. The customer or the
user of the system should assure that it is used in such an environment.
Immunity test
IEC 60601
test level
Compliance
level
Electromagnetic environment – guidance
Electrostatic
discharge
(ESD)
IEC 61000-4-2
±6kV contact
±8kV air
±6kV contact
±8kV air
Floors should be wood, concrete or ceramic tile. If floors
are covered with synthetic material, the relative humidity
should be at least 30%.
Power
frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
3A/m
3A/m
Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical commercial
or hospital environment.
Portable and mobile RF communications equipment should
be used no closer to any part of Nox T3 device, including
cables, than the recommended separation distance
calculated from the equation applicable to the frequency of
the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
3V
rms
150kHz to
80MHz
3V
rms
d
= 1.2√P
Radiated RF
IEC 61000-4-3
3 V/m
80MHz to
2.5GHz
3V/m
d
= 1.2√P
80MHz to 800MHz
d
= 2.3√P
800MHz to 2.5GHz
where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and d is the recommended separation
distance in meters (m).
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey,
a
should be less than the
compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment
marked with the following symbol:
NOTE 1: At 80MHz and 800MHz, the higher frequency range applies.
