Hetaida HTD8823US - Recommended RF Separation Distances

Technical File
File No.
ZHTF-CE-01-015
Rev. No.
A.1
Non Contact Infrared Body
Thermometer
Instructions for use
Rev. Date
2020-6-8
Page
17 / 18
17
Guidance and manufacture’s declaration – electromagnetic immunity
The Non Contact Infrared Body Thermometer is intended for use in the electromagnetic environment
specified below. The customer or the user ofthe Non Contact Infrared Body Thermometer should assure
that it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance
level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
3 V
rms
150 kHz to 80 MHz
Not applicable
Portable and mobile RF communications equipment
should be used no closer to any part of the Non
Contact Infrared Body Thermometer, including cables,
than the recommended separation distance calculated
from 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).
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:
Radiated RF
IEC 61000-4-3
10V/m
80 MHz to 2.5 GHz
10 V/m
NOTE 1 At 80 MHz and 800 MHz, the higher 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 Non Contact Infrared Body
Thermometer is used exceeds the applicable RF compliance level above, the Non Contact Infrared Body
Thermometer should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or relocating the Non Contact Infrared Body Thermometer.