allen A-71101-EU, User Manual

Page: 59 / 387

Specifications
Allen® Advance Table User Guide (D-720722 Ver D) 59
Guidance and Manufacturer's Declaration - Electromagnetic Immunity
The A-71100/A-71101 are intended for use in the electromagnetic environment specified
below. The customer or the user of the A-71100/A-71101 should make sure it is used in such
an environment.
Immunity
Test IEC 60601
Test Level Compliance
Level Electromagnetic Environment—
Guidance
Conducted RF
IEC 61000-4-
6
Radiated RF
IEC 61000-4-
3 3 Vrms
150 kHz to
80 MHz
3 V/m
80 MHz to
2.5 GHz 3 Vrms
3 V/m
Portable and mobile RF
communications equipment should be
used no closer to any part of the A-
71100/A-71101, including cables, than
the recommended separation distance
calculated from the equation applicable
to the frequency of the transmitter.
Recommended separation distance:
𝒅 = 𝟏, 𝟏𝟕√𝐏
150 kHz to
80 MHz
𝒅 = 𝟏, 𝟏𝟕√𝐏
80 MHz to
800 MHz
𝒅 = 𝟐, 𝟑𝟑√𝐏
800 MHz to
2.5 GHz
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 in metres (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 80 MHZ and 800 MHz, the higher the frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a. 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. To
assess the electromagnetic environment due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in
the location in which the A-71100/A-71101 is used exceeds the applicable RF
compliance level above, the equipment should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating the equipment.
b. Over the frequency range of 150 kHz to 80 MHz, field strength should be less than 3
V/m.