Hetaida HTD8823US - Page 18

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
18 / 18
18
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.
Recommended separation distances between
portable and mobile RF communications equipment and the Non Contact Infrared Body Thermometer.
The Non Contact Infrared Body Thermometer is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the Non Contact Infrared Body Thermometer can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Non Contact Infrared Body Thermometer 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
80 MHz to 800 MHz
800 MHz to 2.5 GHz
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres
(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 separation distance for 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.