User Instructions
Table Of Contents
- 1、Safety Precautions
- 2、Features
- 3、Body temperature and measurement principle
- 4、Product scope/structure composition
- 5、Instructions
- 6．Replacement battery
- 7、Cleaning and maintenance
- 8、Abnormal message
- 9、Product specification
- 10、Fault analysis and troubleshooting
- 11、Calibration mode conversion method
- 12、Warranty commitment
- 13、Electromagnetic compatibility statement
17
Radio
frequency
radiation
GB/T 17626.3
80 MHz～2.5 GHz
d =
P
2
.1
80 MHz～800 MHz
d =
P3.2
800 MHz～2.5 GHz
In the formula:
P
—
According to the maximum rated
output power of the transmitter provided by
the transmitter manufacturer, in watts (W)
d
—The recommended isolation distance
is in meters (m) as the unit
b
.
The field strength of the fixed radio
frequency transmitter is determined by
surveying the electromagnetic field
c
, and in
each frequency range
d
should be lower than
the compliance level.
Interference may occur in the
vicinity of equipment marked with the
following symbols.
Note 1：At 80MHz and 800MHz, the higher frequency band formula is used.
Note 2：These guidelines may not be suitable for all situations. Electromagnetic propagation
is affected by absorption and reflection from buildings, objects, and humans.
a Stationary transmitters, such as base stations for wireless (cellular/cordless) telephones
and terrestrial mobile radios, amateur radios, AM and FM radio broadcasts, and television
broadcasts, whose field strength cannot be accurately predicted in theory. In order to assess
the electromagnetic environment of fixed radio frequency transmitters, electromagnetic field
surveys should be considered. If the measured field strength of the TE-79 infrared forehead
thermometer is higher than the above applicable radio frequency compliance level, the TE-79
infrared forehead thermometer should be observed to verify its normal operation.
If abnormal
performance is observed, supplementary measures may be necessary, such as readjusting the
direction or position of the infrared forehead thermometer.
b In the entire frequency range of 150KHz
～80MHz, the field strength should be lower than
3 V/m.
Recommended isolation distance between portable and mobile radio frequency communication
equipment and infrared forehead thermometer
The TE-79 infrared forehead thermometer is expected to be used in an electromagnetic
environment where radio frequency radiation disturbance is controlled.
According to the
maximum rated output power of the communication device, the purchaser or user can prevent
electromagnetic interference by maintaining the minimum distance between the portable and
mobile radio frequency communication device (transmitter) and the TE-79 infrared forehead
thermometer as recommended below.