Guidance and Manufacturer’s Declaration – Electromagnetic
Immunity – for all EQUIPMENT and SYSTEMS that are not
LIFE-SUPPORTING
Guidance and Manufacturer's Declaration - Electromagnetic Immunity
The Medical Infrared Thermometer is intended for use in the
electromagnetic environment specified below. The customer or user of the
device should ensure that it is only used in such an environment.
Note 1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These guidelines may not apply in all situations. Electromagnetism is aected by
absorption and reflection from structures, objects and people.
Theoretically, the field strengths of such fixed transmitters as base stations for radio
(cellular/cordless) telephones and land mobile radios, amateur radios, AM and FM radio
signals and TV signals cannot be predicted with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be
considered. The field strength in the location in which the thermometer is to be used
should be measured to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the thermometer.
Over the frequency range of 150 kHz to 80 MHz, the field strength should be less than 3
V/m.
Immunity
Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic Environment -
Guidance
80 MHz to 800 MHz
800 MHz to 2.5 GHz
Portable and mobile RF communica-
tions equipment should not be used
closer to any part of the device.
Infrared Thermometer, including cables, than
the recommended separation distance
calculated by the equation applicable to the
frequency of the transmitter. Recommended
separation distance:
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 metres
(m). b Field strengths from mixed 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:
3 V/m
Radiated
RF
IEC
61000-4-3
3 V/m
80 MHz
To 2.5
GHz
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