Guidance and manufacture’s declaration – electromagnetic immunity
The 1528L is intended for use in the electromagnetic environment specified below. The customer or the user of the 1528L should assure that it is used in such an environment.
Immunity Test | IEC60601 test level | Compliance | Electromagnetic environment – guidance |
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| Portable and mobile RF communications equipment |
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| should be used no closer to any part of the |
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| [EQUIPMENT or SYSTEM], including cables, than the |
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| recommended separation distance calculated from the |
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| equation applicable to the frequency of the transmitter. |
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| Recommended separation distance |
Conducted RF | 3 Vrms | 3 V | __ |
d = 1,2 √P | |||
150 kHz to 80 MHz |
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Radiated RF | 10 Vrms | 3 V/m | d = 1,2 √P 80 MHz to 800 MHz |
80 MHz to 2.5 GHz |
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| d = 2,3 √P 800 MHz to 2,5 GHz |
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| where P is the maximum output power rating of the |
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| transmitter in watts (W) according to the transmitter |
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| manufacturer and d is the recommended separation |
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| distance in meters (m).b |
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| Field strengths from fixed RF transmitters, as |
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| determined by an electromagnetic site survey,c should |
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| be less than the compliance level in each frequency |
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| range.d |
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| Interference may occur in the vicinity of equipment |
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| marked with the following symbol: |
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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.
a
The ISM (industrial, scientific, and medical) bands between 150 kHz and 80 MHz are 6,765 MHz to 6,795 MHz; 13,553 MHz to 13,567 MHz; 26,957 MHz to 27,283 MHz; and 40,66 MHz to 40,70 MHz.
b
c
d
The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and the frequency range 80 MHz to 2,5 GHz are intended to decrease the likelihood that mobile/portable communications equipment could cause interference if it is inadvertently brought into patient areas. For this reason, an additional factor of 10/3 is used in calculating the recommended separation distance for transmitters in these frequency ranges.
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio 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 1528L is used exceeds the applicable RF compliance level above, the 1528L should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the [EQUIPMENT or SYSTEM].
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V1] V/m.
User Manual: 1528L SW200095 Rev A, Page 8 of 39
