Beurer FT 78: Electromagnetic Compatibility Information

Electromagnetic Compatibility Information

Table 1

Guidance and manufacturer’s declaration-electromagnetic emissions

The FT78 Ear thermometer is intended for use in the electromagnetic environment specied below. The customer or the user of the FT78

Ear thermometer should assure that it is used in such an environment.

Emissions test Compliance Electromagnetic environment – guidance

RF emissions CISPR 11 Group 1 The FT78 Ear thermometer uses RF energy only for its internal function.

Therefore, its RF emissions are very low and are not

likely to cause any interference in nearby electronic equipment.

RF emissions CISPR 11 Class B The FT78 Ear thermometer is suitable for use in all establishments other that

domestic and those directly connected to the public low-voltage power supply

Harmonic emissions IEC 61000-3-2 Not applicable

network that supplies buildings used for domestic purposes.

Voltage uctuations/icker emissions

Not applicable

IEC 61000-3-3

68

Table 2

Guidance and manufacturer’s declaration – electromagnetic immunity

The FT78 Ear thermometer is intended for use in the electromagnetic environment specied below. The customer or the user of the FT78

Ear thermometer should assure that it is used in such an environment.

IMMUNITY test IEC 60601 test level Compliance level Electromagnetic environment – guidance

Floor should be wood, concrete or ceramic tile. If oors are

Electrostatic discharge (ESD)

± 6 kV contact

± 6 kV contact

covered with shythetic material, the relative humidity should

IEC 61000-4-2

± 8 kV air

± 8 kV air

be at least 30%.

±2 kV for power

Mains power quality should be that of a typical commercial or

Electrical fast transient/burst

supply lines

hospital environment.

Not applicable

IEC 61000-4-4

±1 kV air for input/out-

put lines

Surge

±1kV differential mode

Mains power quality should be that of a typical commercial or

Not applicable

IEC 61000-4-5

±2kV common mode

hospital environment.

<5% U

(>95% dip in

Mains power quality should be that of a typical commercial or

T

U

for 0.5 cycle

hospital environment. If the use of the FT78 Ear thermometer

T

requires continued operation during power mains interruptions,

Voltage dips, short interrup-

40% U

(60% dip in

T

it is recommended that the FT78 Ear thermometer be powered

tions and voltage variations

U

for 5 cycles

T

Not applicable

from an uninterruptible power supply or a battery.

on power supply input lines

70% U

(30% dip in

T

IEC 61000-4-11

U

for 25 cycles

T

5% U

(>95% dip in

T

U

for 5 sec

T

Power frequency magnetic elds should be at levels characte-

Power frequency (50/60 Hz)

3 A/m 3 A/m

ristic of a typical location in a typical commercial or hospital

magnetic eld IEC 61000-4-8

environment.

NOTE: U

is the a.c. mains voltage prior to application of the test level.

T

69

Table 3

Guidance and manufacturer’s declaration – electromagnetic immunity

The FT78 Ear thermometer is intended for use in the electromagnetic environment specied below. The customer or the user of the FT78

Ear thermometer should assure that it is used in such an environment.

IMMUNITY

IEC 60601

Compliance

Electromagnetic environment – guidance

test

test level

level

Portable and mobile RF communications equipment should be used no closer to any part of

the FT78 Ear thermometer, including cables, than the recommended separation distance cal-

culated from the equation applicable to the frequency of the transmitter.

Recommended separation distance:

Conducted RF

3Vrms

3Vrms

d = 1.2

IEC 61000-4-6

150 kHz to

80 MHz

d = 1.2

80 MHz to 800 MHz

Radiated RF

3 V / m

3 V / m

d = 2.3

800 MHz to 2.5 GHz

IEC 61000-4-3

80 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 distance in meters (m).

a

Field strengths from xed RF transmitters, as determined by an electromagnetic site survey,

b

should be less than the compliance level in each frequency range.

Interference may occur in the vicinity of equipment marked with the following symbol:

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 aected by absorption and reection from struc-

tures, objects and people.

Field strengths from xed transmitters, such as base stations from radio (cellular/cordless) telephones and land mobile radios, amateur

radio, AM and FM radio broadcast and TV broadcast can not be predicted theoretic call with accuracy. To assess the electromagnetic envi-

ronment due to xed RF transmitters, an electromagnetic site survey should be considered. If the measured eld strength in the location in

which the FT78 Ear thermometer is used exceeds the applicable RF compliance level above, the FT78 Ear thermometer should be observed

to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating

the FT78 Ear thermometer.

Over the frequency range 150kHz to 80MHz, eld strengths should be less than 3 V/m.

70

Table 4

Recommended separation distances between portable and mobile RF communications equipment and the EQUIPMENT or SYSTEM-for

EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING

Recommended separation distances between portable and mobile RF communications equipment and the FT78 Ear thermometer

The FT78

Ear thermomete

r is intended for use in an electromagnetic environment in which radiated RF distances are controlled. The custo-

mer or the user of the T FT78

Ear thermomete

r can help prevent electromagnetic interference by maintaining a minimum distance between

portable and mobile RF communications equipment (transmitters) and the FT78

Ear thermomete

r as recommended below according to the

maximum output power of the communications equipment.

Separation distance according to frequency of transmitter

(m)

Rated maximum output

150 kHz to 80 MHz

80 MHz to 800 MHz

800 MHz to 2.5 GHz

power of transmitter

(W)

d = 1.2

d = 1.2

d = 2.3

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 distanced in meters (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 aected by absorption and reection from struc-

tures, objects and people.

71

751.496-1014 Irrtum und Änderungen vorbehalten

72