NSK Varios 970 Operación Manual página 24

Guidance and manufacturer's declaration - electromagnetic immunity
The Varios 970 / Varios 970 LUX is intended for use in the electromagnetic environment specified below. The customer or the user of the Varios 970 / Varios 970 LUX
should assure that it is used in such an environment.
Immunity test EN/IEC60601 test level
Electrostatic discharge (ESD) ±6kV contact
EN/IEC6000-4-2 ±8kV air
Electrical fast transient/burst ±2kV for power supply lines
EN/IEC6000-4-4 ±kV for input/output
Surge ±kV line(s) to line(s)
EN/IEC6000-4-5 ±2kV line(s) to earth
Voltage dips, short <5% Ut (>95% dip in Ut)
interruptions and voltage for 0.5 cycle
variations on power supply
40% Ut (60% dip in Ut)
input lines
for 5 cycles
EN/IEC6000-4-
70% Ut (30% dip in Ut)
for 25 cycles
<5% Ut (>95% dip in Ut)
for 5 secs
Power frequency (50/60Hz) 3 A/m
magnetic field
EN/IEC6000-4-8
NOTE: Ut is the a.c. mains voltage prior to application of the test level.
Guidance and manufacturer's declaration - electromagnetic immunity
The Varios 970 / Varios 970 LUX is intended for use in the electromagnetic environment specified below. The customer or the user of the Varios 970 / Varios 970 LUX
should assure that it is used in such an environment.
Immunity test EN/IEC60601 test level
Conducted RF 3Vrms
EN/IEC6000-4-6 50 kHz to 80MHz
Radiated RF 3V/m
EN/IEC6000-4-3 80MHz to 2.5 GHz
NOTE 1 At 80MHz and 800MHz, 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 Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobiles radios, amateur radio, AM and FM
radio broadcast 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 Varios 970 / Varios 970 LUX is used exceeds the
applicable RF compliance level above, the Varios 970 / Varios 970 LUX should be observed to verity normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating the Varios 970 / Varios 970 LUX.
b Over the frequency range 50kHz to 80MHz, field strengths should be less than 3 V/m.
Compliance level
±6kV contact
±8kV air
±2kV for power supply lines
±kV for input/output
±kV line(s) to line(s)
±2kV line(s) to earth
<5% Ut(>95% dip in Ut)
for 0.5 cycle
40% Ut (60% dip in Ut)
for 5 cycles
70% Ut (30% dip in Ut)
for 25 cycles
<5% Ut (>95% dip in Ut)
for 5 sec
3 A/m
Compliance level Electromagnetic environment - guidance
Portable and mobile RF communications equipment should be used
no closer to any part of the Varios 970 / Varios 970 LUX, including
cables, than the recommended separation distance calculated from
the equation applicable to the frequency of the transmitter.
Recommended separation distance
3Vrms d = .2 P
d = .2 P 80MHz to 800MHz
3V/m d = 2.3 P 800MHz to 2.5GHz
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 meters (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:
23
Electromagnetic environment - guidance
Floors should be wood, concrete or ceramic tile. If floors are
covered with synthetic material, the relative humidity should
be at least 30%.
Mains power quality should be that of a typical commercial or
hospital environment.
Mains power quality should be that of a typical commercial or
hospital environment.
Mains power quality should be that of a typical commercial
or hospital environment. If the user of the Varios 970 / Varios
970 LUX requires continued operation during power mains
interruptions, it is recommended that the Varios 970 / Varios
970 LUX be powered from an uninterruptible power supply or
a battery.
Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical commercial or
hospital environment.