Schulte U-3003-E Gebrauchsanweisung Seite 52

Guidelines and manufacturer's explanations – electromagnetic interference immunity
The U-3003 is intended for operation in the electromagnetic environment described below. The
customer or user of the U-3003 should ensure that it is used in this type of environment.
Interference
immunity
Conducted RF-
interference
according to
IEC 61000-4-6
Radiated RF
interference
according to IEC
61000-4-3
Note 1: In the case of 80 MHz and 800 MHz, the higher frequency range applies.
Note 2: These instructions may not apply in all cases. The propagation of electromagnetic interference is
influenced by absorptions and reflections of buildings, objects and persons.
(a) The field strength of stationary transmitters, such as base stations of radio telephones and mobile surface
radio equipment, amateur radio stations, AM and FM radio broadcast and television transmitters
cannot in theory be accurately determined in advance. In order to assess the electromagnetic environment
with regard to stationary transmitters, a study of the location should be undertaken. If the field strength
measured at the location at which the U-3003 is used exceeds the above conformity level, the U-
3003 should be monitored to confirm that it is operating correctly. If unusual performance characteristics are
observed, additional measures may be needed, e.g. a different location for the U-3003.
(b) With the frequency range of 150kHz to 80MHz, the field strength should be less than 3 V/m.
IEC 60601-1- Conformity
2:2014 level
3Veff
150kHz – 80 MHz 3Veff
3Veff
ISM Range
3V/m 3 V/m
80MHz – 2,5GHz
page 22
Electromagnetic
environment –
Portable and mobile radio equipment
should not be used at a closer
distance to the U-3003-E / S,
including the cables, than the safe
clearance calculated according to the
equation appropriate to the
transmission frequency.
Recommended safe clearance
where P is the rated power of the
transmitter in Watt
(W) according to the transmitter
manufacturer's data and d is the
recommended safe clearance in
meters (m)
The field strength of stationary
radio transmitters at all frequencies
tested on site should be (a) less
than the conformity level (b)
Interference is possible in the vicinity
of equipment bearing the following
mark.
for 80-800 Mhz
for 0.8GHz –
2.5GHz