Cooey WHT1-808-B Посібник користувача - Сторінка 17

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Table 4 Guidance and MANUFACTURER's declaration – electromagnetic IMMUNITY –

for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING

Guidance and manufacturer's declaration – electromagnetic immunity

The device is intended for use in the electromagnetic environment specified below.

The customer or the user of the device should assure that it is used in such an environment.

IMMUNITY test

IEC 60601

Compliance

TEST LEVEL

level

3 Vrms

Conducted RF

150 kHz to

3 Vrms

IEC 61000-4-6

80 MHz

Radiated RF

3 V/m

IEC 61000-4-3

80 MHz to

2.5 GHz

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.

Field strengths from fixed transmitters, such as base stations for radio (cellular / cordless) telephones

and land mobile radios, amateur radio, AM and FM radio broad-cast 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 device is used exceeds the applicable RF compliance level above, the

device should be observed to verify normal operation. If abnormal performance is observed,

additional measures may be necessary, such as re-orienting or relocating the device.

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

Electromagnetic environment -

guidance

Portable and mobile RF communications

equipment should be used no closer to

any part of the device, including

cables, than the recommended

separation distance calculated from the

equation applicable to the frequency of

the transmitter.

Recommended separation distance

1.167

80 MHz to 800 MHz

2.333

800 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 metres (m).

Field strengths from fixed RF

transmitters, as determined by an

electromagnetic site survey, should be

less than the compliance level in each

frequency range.

Interference may occur in the vicinity of

equipment marked with the following

symbol:

Table 6 Recommended separation distances between portable and mobile

RF communications equipment and the ME EQUIPMENT or ME SYSTEM –

for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING

Recommended separation distances

between portable and mobile RF communications equipment and the device.

The device is intended for use in an electromagnetic environment in which

radiated RF disturbances are controlled. The customer or the user of the device

can help prevent electromagnetic interference by maintaining a minimum distance

between portable and mobile RF communications equipment (transmittters) and the

device as recommended below, according to the maximum output power of the

communications equipment.

Rated maximum output

Separation distance according to frequency of transmitter (m)

power of transmitter

(W)

150 kHz to 80 MHz

1.167

0.01

0.117

0.1

0.369

1.167

3.690

100

11.67

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 80MHz and 800MHz, 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.

80 MHz to 800 MHz

800 MHz to 2.5 GHz

1.167

2.333 P

0.117

0.233

0.369

0.738

1.167

2.333

3.690

7.378

11.67

23.33