RADWAG WPT/8B 300C Ramps Bed Scales - Manual (Page 59)

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Short supply
voltage drops and
changes of supply
voltage in supply
lines according to
IEC 61000-4-11
< 5% UT
(> 95% voltage
drop UT)
through 0.5 period
40% UT
(60% voltage drop
UT)
through 5 periods
70% UT
(30% voltage drop
UT)
through 25 periods
< 5% UT
(> 95% voltage
drop UT)
through 5 seconds
< 5% UT
(> 95% voltage
drop UT)
through 0.5 period
40% UT
(60% voltage drop
UT)
through 5 periods
70% UT
(30% voltage drop
UT)
through 25 periods
< 5% UT
(> 95% voltage
drop UT)
through 5 seconds
The quality of mains should
be on the on the office- or
hospital-level environment.
If a DEVICE user requires
continuous supply during the
breaks in the mains it is
advisable that the DEVICE is
supplied from UPS or
batteries.
Magnetic field with
frequency the
same as the
supply voltage
according to IEC
61000-4-8
3A/m Magnetic field with frequency
the same as the supply
voltage should be on the
level typical for office or
hospital environment
Caution UT is an alternative current (AC) of mains before implementing the test level.
RF – frequency from the interval o electromagnetic spectrum which is between the lower
range of radio frequencies of long waves and the infrared range; frequencies useful for radio
transmission. The limit frequencies are 9 kHz and 3 000 GHz
Table 204
Manufacturer declaration and information - electromagnetic immunity
The DEVICE is intended to operate in the electromagnetic environment described below.
Recipient or user of the DEVICE should make sure that it operates in such an environment.
Immunity tests
Testing
level IEC
60601
Met
requirements
Electromagnetic environment –
information
Portable devices for wireless
communication and cellular
telephones should not be used within
the distance from the DEVICE lower
than the minimal recommended and
that includes cables/harness. This
distance can be calculated using the
equations applicable for frequencies
of transmitter operation.
Advisable minimal distance