Maico MA 33 - Page 84

Operation Manual MA 33
8100092 Rev. 9
82
19/08/2019
Recommended separation distances between
portable and mobile RF communications equipment and the Instrument.
The MA 33 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or the user
of the MA 33 can help prevent electromagnetic interferences by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the MA 33 as recommended below, according to the maximum output power of the
communications equipment.
Rated Maximum output
power of transmitter
[W]
Separation distance according to frequency of transmitter
[m]
150 kHz to 80 MHz
d = 1.17
√
𝑃
80 MHz to 800 MHz
d = 1.17
√
𝑃
800 MHz to 2.7 GHz
d = 2.23
√
𝑃
0.01
0.12
0.12
0.23
0.1
0.37
0.37
0.74
1
1.17
1.17
2.33
10
3.70
3.70
7.37
100
11.70
11.70
23.30
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can be estimated
using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W)
according to the transmitter manufacturer.
Note 1 At 80 MHz and 800 MHZ, the higher frequency range applies.
Note 2 These guidelines may not apply to all situations. Electromagnetic propagation is affected by absorption and reflection from structures,
objects and people.
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
The MA 33 is intended for use in the electromagnetic environment specified below. The customer or the user of the Instrument should assure
that it is used in such an environment.
Immunity Test
IEC 60601 Test level
Compliance
Electromagnetic environment - guidance
Electrostatic Discharge
(ESD)
IEC 61000-4-2
± 8 kV contact
± 15 kV air
± 8 kV contact
± 15 kV air
Floors should be wood, concrete or ceramic
tile. If floors are covered with synthetic
material, the relative humidity should be
greater than 30%.
Electrical fast
transient/burst
IEC61000-4-4
± 2 kV for power supply lines
100kHz repetition frequency
± 1 kV Line-to-line
100kHz repetition frequency
Not applicable
± 1 kV Line-to-line
Mains power quality should be that of a
typical commercial or residential environment.
Surge
IEC 61000-4-5
± 1 kV Line-to-line
± 2 kV Line-to-ground
Not applicable
Mains power quality should be that of a
typical commercial or residential environment.
Voltage dips, short
interruptions and voltage
variations on power supply
lines
IEC 61000-4-11
0% UT for 0.5 cycle
0 % UT for 1 cycle
and
70% UT
for 25/30 cycles
Single phase: at 0°
Not applicable
Mains power quality should be that of a
typical commercial or residential environment.
If the user of the Instrument requires
continued operation during power mains
interruptions, it is recommended that the
Instrument be powered from an
uninterruptable power supply or its battery.
Power frequency
(50/60 Hz)
IEC 61000-4-8
30 A/m
30 A/m
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or residential environment.
Note: UT is the A.C. mains voltage prior to application of the test level.