18
Guidance and manufacturer’s declaraon — electromagnec immunity
The model SC-3004-DL is intended for use in the electromagnec environment specied below. The customer or the user of the model SC-3004-DL should assure
that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level Electromagnec environment—guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 1000-4-3
3 Vrms
15 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3 Vrms
3 V/m
Portable and mobile RF communicaons equipment should be used no closer to any part of the
model SC-3004-DL, than the recommended separaon distance calculated from the equaon
applicable to the frequency of the transmier.
Recommended separaon distance
80 MHz to 800 MHz
800 MHz to 2.5 GHz
where P is the maximum output power rang of the transmier in was (W) according to the
transmier manufacturer and d is the recommended separaon distance in meters (m).
Field strengths from xed RF transmiers, as determined by an electromagnec 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:
Note 1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These guidelines may not apply to all situaons. Electromagnec propagaons is aected by absorpon and reecons from structures, objects and peo-
ple.
a
Field strengths from xed transmiers, such as base staons for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio
broadcast and TV broadcast cannot be predicted theorecally with accuracy. To assess the electromagnec environment due to xed RF
transmiers, an electromagnec site survey should be considered. if the measured eld strength in the locaon in which the model SC-3004-DL is used exceeds
the applicable RF compliance level above, the model SC-3004-DL should be observed to verify normal operaon. If abnormal performance is observed, addional
measures may be necessary, such as re-orienng or relocang the model SC-3004-DL.
b
Over the frequency range 150 kHZ to 80 MHz, eld strengths should be less than 3 V/m.
Recommended separaon distances between portable and mobile RF communicaons equipment and the model SC-3004-DL
The model SC-3004-DL is intended for use in an electromagnec environment in which radiated RF disturbances are controlled. The customer of user of the model
SC-3004-DL can help prevent electromagnec interference by maintaining a minimum distance between portable and mobile RF communicaons equipment
(transmiers) and the model SC-3004-DL as recommended below, according to the maximum output power of the communicaons equipment.
Rated maximum output power of
transmier
W
Separaon distance according to frequency of transmier
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 transmiers rated at a maximum output power not listed above, the recommended separaon distance d in meters (m) can be esmated using the
equaon applicable to the frequency of the transmier, where p is the maximum output power rang of the transmier in was (W) according to the
transmier manufacturer.
Note 1: At 80 MHz, the separaon distance for the higher frequency range applies.
Note 2: These guidelines may not apply in all situaons. Electromagnec propagaon is aected by absorpon and reecon from structures, objects and people.