20SPECIFICATIONSGuidance and manufacturer’s declaration - electromagnetic immunityThe table is intended for use in the electromagnetic environment specified below. The customer or theuser of the table should assure that it is used in such an environment.Immunity Test IEC 60601 test level Compliance level Electromagneticenvironment - guidanceConducted RFIEC 61000-4-6Radiated RFIEC 61000-4-33 Vrms150 kHz to 80 MHz3 V/m80 MHz to 2,5 GHz3Vrms3V/mPortable and mobile RF communications equipment shouldbe used no closer to any part of the table, including cables,than the recommended separation distance calculated fromthe equation applicable to the frequency of the transmitter.Recommended separation distanced = 1.2 √ Pd = 1.2 √ P 80 MHz to 800 MHzd = 2.3 √ P 800 MHz to 2,5 GHzWhere P is the maximum output power rating of the trans-mitter in watts (W) according to the transmitter manufacturerand d is the recommended separation distance in meters (m).Field strengths from fixed RF transmitters, as deter-minedby an electromagnetic site survey, a should be less than thecompliance level in each frequency range. bInterference may occur in the vicinity of equipment markedwith 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 affected by absorption andreflection from structures, objects and people.a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobileradios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accura-cy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should beconsidered. If the measured field strength in the location in which the table is used exceeds the applicable RF com-pliance level above, the table should be observed to verify normal operation. If abnormal performance is observed,additional measures may be necessary, such as re-orienting or relocating the tableb Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 1 V/m.